Pamela Nagler, Ph.D.
Expertise: Remote sensing applications in ecohydrology with a focus on scaling ground-based evapotranspiration (water use) measurements of plants in riparian ecosystems, their uplands and adjacent agriculture fields. Applications include mapping vegetation communities and phenological change in the Sonoran and Mojave Deserts and the transboundary region of northwestern Mexico and southwestern U.S.
Dr. Pamela Nagler’s interest in landscapes developed naturally through her experiences with a variety of lands and cultures throughout her early years. She first worked with USGS as a hydrological technician with the Water Resources Division, mentored by Drs. Jake Peters and Jamie Shanley. After obtaining a B.S. in Geography, Pamela interned with the late Barry Bishop (a member of the first American team to reach the summit of Mount Everest in 1963) at the National Geographic Society in Washington DC, where she was greatly influenced to pursue her passion for geography as a career. She then worked for the Solid Waste Division of the EPA followed by a couple of years with the Defense Mapping Agency. At the University of Maryland at College Park, Pamela earned an M.A. in Geography with an emphasis on Land Remote Sensing; her Advisor, Dr. Sam Goward, served as the Landsat Science Team Leader from 1992 and completed Landsat’s Enduring Legacy: 50 years in 2017. As his mentee, she gained experience and skills needed to address environmental applications using remote sensing tools. During her Master’s program, Pamela had a research assistantship with the USDA Agriculture Research Service under the guidance of Dr. Craig Daughtry, and helped develop techniques using hyperspectral data to distinguish soil from litter in the landscape. Pamela continued this research in Japan with a fellowship sponsored by NSF. Dr. Yoshio Inoue, her academic host at the Japan National Institute of Agro-Environmental Studies in 1996-1997, encouraged Pamela to return to the US to continue her academic studies. Pamela spent time in ten Asian countries before starting her Ph.D. research with Dr. Alfredo Huete at the University of Arizona in Tucson, AZ. Pamela's dissertation research used remote sensing tools to study environmental applications in the Colorado River delta in Mexico and her post-doctoral work with Dr. Edward Glenn was funded through a NASA grant. With direction from Ed Glenn, she studied seaweed productivity while living in Molokai, Hawaii, phytoremediation at DOE Legacy Mine sites on Navajo Nation near Monument Valley, and conservation and policy of the Colorado River Delta in the Borderlands of the U.S. and Mexico. Pamela received a PECASE Award at the White House with POTUS Obama in 2010, became a Kavli Fellow with the Academy of Sciences in 2011, and was internationally recognized by CSIRO in 2013. Pamela spent a year at CSIRO in their Land and Water Division in Adelaide, South Australia. Pamela serves students in three departments at the University of Arizona, including SNRE, SWES and more recently, Biosystems Engineering. She also serves on three journal Editorial Boards and as a Board Member of the FWS Sonoran Joint Venture.
Education and Certifications
Ph.D. - 2001, Soil, Water, and Environmental Science, University of Arizona, Tucson, AZ.
M.A. - 1997, Geography, University of Maryland. College Park, MD.
B.S. - 1989, Geography, University of Florida, Gainesville, FL.
Science and Products
Filter Total Items: 102
Relationship between evapotranspiration and precipitation pulses in a semiarid rangeland estimated by moisture flux towers and MODIS vegetation indices Relationship between evapotranspiration and precipitation pulses in a semiarid rangeland estimated by moisture flux towers and MODIS vegetation indices
We used moisture Bowen ratio flux tower data and the enhanced vegetation index (EVI) from the moderate resolution imaging spectrometer (MODIS) on the Terra satellite to measure and scale evapotranspiration (ET) over sparsely vegetated grassland and shrubland sites in a semiarid watershed in southeastern Arizona from 2000 to 2004. The grassland tower site had higher mean annual ET (336 mm...
Authors
P.L. Nagler, E. Glenn, H. Kim, W. Emmerich, R.L. Scott, T. E. Huxman, A.R. Huete
Evapotranspiration in a cottonwood (Populus fremontii) restoration plantation estimated by sap flow and remote sensing methods Evapotranspiration in a cottonwood (Populus fremontii) restoration plantation estimated by sap flow and remote sensing methods
Native tree plantations have been proposed for the restoration of wildlife habitat in human-altered riparian corridors of western U.S. rivers. Evapotranspiration (ET) by riparian vegetation is an important, but poorly quantified, term in river water budgets. Native tree restoration plots will potentially increase ET. We used sap flow sensors and satellite imagery to estimate ET in a 8 ha
Authors
P. Nagler, A. Jetton, J. Fleming, K. Didan, E. Glenn, J. Erker, K. Morino, J. Milliken, S. Gloss
Buffelgrass (Pennisetum ciliare) land conversion and productivity in the plains of Sonora, Mexico Buffelgrass (Pennisetum ciliare) land conversion and productivity in the plains of Sonora, Mexico
Bufflelgrass (Pennisetum ciliare syn. Cenchrus ciliaris) is an African grass that has been widely introduced in subtropical arid regions of the world to improve rangelands for cattle production. However, it can have a negative effect on the diversity of native plant communities. Buffelgrass was introduced to Sonora, Mexico in the 1970s as a means to bolster the cattle industry. “Desmonte...
Authors
Kim Franklin, Kelly Lyons, Pamela Nagler, Derrick Lampkin, Edward Glenn, Francisco Molina-Freaner, Therese Markow, Alfredo Huete
Coastal wetlands of the northern Gulf of California: Inventory and conservation status Coastal wetlands of the northern Gulf of California: Inventory and conservation status
1. Above 28°N, the coastline of the northern Gulf of California is indented at frequent intervals by negative or inverse estuaries that are saltier at their backs than at their mouths due to the lack of freshwater inflow. These ‘esteros’ total over 215 000 ha in area and encompass mangrove marshes below 29°N and saltgrass (Distichlis palmeri) marshes north of 29°N. An additional 6000 ha...
Authors
Edward P. Glenn, Pamela Nagler, Richard Brusca, Osvel Hinojosa-Huera
Regeneration of native trees in the presence of invasive saltcedar in the Colorado River Delta, Mexico Regeneration of native trees in the presence of invasive saltcedar in the Colorado River Delta, Mexico
Many riparian zones in the Sonoran Desert have been altered by elimination of the normal flood regime; such changes to the flow regime have contributed to the spread of saltcedar (Tamarix ramosissma Ledeb.), an exotic, salt-tolerant shrub. It has been proposed that reestablishment of a natural flow regime on these rivers might permit passive restoration of native trees, without the need...
Authors
Pamela Nagler, Osvel Hinojosa-Huerta, Edward P. Glenn, Jaqueline Garcia-Hernandez, Reggie Romo, Alfredo Huete, Stephen Nelson
Vegetation mapping for change detection on an arid-zone river Vegetation mapping for change detection on an arid-zone river
A vegetation mapping system for change detection was tested at the Havasu National Wildlife Refuge (HNWR) on the Lower Colorado River. A low-cost, aerial photomosaic of the 4200 ha, study area was constructed utilizing an automated digital camera system, supplemented with oblique photographs to aid in determining species composition and plant heights. Ground-truth plots showed high...
Authors
Pamela Nagler, Edward P. Glenn, Kim Hursh, Charles Curtin, Alfredo Huete
Non-USGS Publications**
Nagler, P., J. Cleverly, D. Lampkin, E. Glenn, A. Huete, & Z. Wan. 2005. Predicting riparian evapotranspiration from MODIS vegetation indices and meteorological data. Remote Sensing of Environment, 94(1), 17-30. https://doi.org/10.1016/j.rse.2004.08.009
Glenn, E., & P. Nagler. 2005. Comparative ecophysiology of Tamarix ramosissima and native trees in western U.S. riparian zones. Journal of Arid Environments, 61(3), 419-446. https://doi.org/10.1016/j.jaridenv.2004.09.025
Nagler, P., R. Scott, C. Westenburg, J. Cleverly, E. Glenn, & A. Huete. 2005. Evapotranspiration on western U.S. rivers estimated by the Enhanced Vegetation Index from MODIS and data from eddy covariance and Bowen ratio flux towers. Journal Article: Remote Sensing of Environment, 97(3), 337-351. https://doi.org/10.1016/j.rse.2005.05.011
Huete, A., H.Kim, E. Glenn, & P. Nagler. 2005. Land surface water variability and dynamics during a severe drought in the southwest, USA. Proceedings: International Symposium on Remote Sensing of Environment (ISRSE). St. Petersburg, Russia. June 20-24.
Nagler, P.L., E.P. Glenn, T.L. Thompson, & A. R. Huete. 2004. Leaf Area Index and Normalized Vegetation Difference Index as predictors of canopy characteristics and light interception by riparian species on the lower Colorado River: Agricultural and Forest Meteorology, 125(1-2), 1-17. https://doi.org/10.1016/j.agrformet.2004.03.008
Kim, H.J., Huete, A., Glenn, E., & Nagler, P. 2004. Spatial and Temporal Vegetation Dynamics and Relationships to Water Availability in the San Pedro Riparian Zone, Arizona. Proceedings: AVIRIS 2004 Workshop, Sponsored by the Jet Propulsion Lab, California Institute of Technology, Pasadena, California. Mar 31-Apr 2, 2004.
Rodriguez, P., A. Huete, D. Schaub, K. Didan, T. Miura, E. Glenn, & P. Nagler. 2004. Application of MODIS Vegetation Indices to Monitor the Seasonal Responses and Water Use Impacts over the Colorado River Delta Area, NW Mexico. Proceedings: 29th International Symposium on Remote Sensing of Environment, Buenos Aires, Argentina, April 8-12, 2004.
Nagler, P.L., E. Glenn, A. Huete, J. Cleverly, & Z. Wan. 2004. MODIS Vegetation Indices, MODIS Land Surface Temperatures and Micrometeorological Variables to Predict Riparian Evapotranspiration along the Middle Rio Grande. Proceedings: MODIS Vegetation Workshop II, Missoula, Montana. August 17-19, 2004.
Huete, A., K. Didan, D. Lampkin, E. Glenn, & P. Nagler. 2004. Multi-Year MODIS Time Series Analysis of Land Conversion Processes in Semiarid Regions. Proceedings: 70th American Society of Photogrammetry and Remote Sensing (ASPRS) Imaging and Geospatial Information Society, Multi-temporal Image Analysis and Applications – Part VIII: Land Cover Trend Analysis. Denver, Colorado, May 23-28, 2004.
Nagler, P.L., Curtis, C.C., & E.P. Glenn. 2004. An inexpensive digital vegetation mapping system. Proceedings: 4th International Symposium of the Photogrammetry and Remote Sensing Society (ISPRS), Mobile Mapping & Technology Conf., Paper #1089. Kunming, China. Mar. 29-31, 2004.
Nagler, P.L. 2004. Application of MODIS Vegetation Indices and Land Surface Temperatures to Predict Riparian Evapotranspiration across the Semi-Arid Southwest, Using Micro-meteorological Tower Data from the Middle Rio Grande, San Pedro River, and the Lower Colorado River. Proceedings: Geological Society of America, 36(5), 515. Denver, Colorado. November 7-10, 2004.
Ryder, E., S. Nelson, E. Glenn, P. Nagler, S. Napolean, & K. Fitzsimmons. 2004. Production of Gracilaria parvispora in two-phase polyculture systems in relation to nutrient requirements and uptake. A Review: Bulletin: Fish. Res. Agen. Supplement, 1, 71-76. https://www.researchgate.net/publication/228735423_Review_Production_of_Gracilaria_parvispora_in_two-phase_polyculture_systems_in_relation_to_nutrient_requirements_and_uptake
Nagler, P., E. Glenn, & R. C. Brusca. 2004. Proceedings: Conference on the Gulf of California, sponsored by the Arizona-Sonora Desert Museum & Packard Foundation. Tucson, AZ. June 17-23, 2004.
Nagler, P., E. Glenn, & R. C. Brusca. 2004. Photographic Atlas of Esteros and Other Coastal Wetlands of Conservation Interest in the Northern Gulf of California, 1-147. Arizona-Sonora Desert Museum, Tucson, AZ.
Nagler, P.L., E.P. Glenn, S. Nelson, & S. Napolean. 2003. Effects of fertilization treatment and stocking density on the growth and yield of the economic seaweed Gracilaria parvispora (Rhodophyta) in cage culture at Moloka’i, Hawai’i: Aquaculture, 219(1-4), 379-391. https://doi.org/10.1016/S0044-8486(02)00529-X
Nagler, P.L., E.P. Glenn, & T.L. Thompson. 2003. Comparison of transpiration rates among saltcedar, cottonwood and willow trees by sap flow and canopy temperature methods: Agricultural and Forest Meteorology, 110, 1-17. https://doi.org/10.1016/S0168-1923(02)00251-4
Nagler, P.L., Y. Inoue, E.P. Glenn, A. Russ, & C.S.T. Daughtry. 2003. Cellulose Absorption Index (CAI) to quantify mixed soil-plant litter scenes: Remote Sensing of Environment, 87, 310-325. https://doi.org/10.1016/j.rse.2003.06.001
Nagler, P., O. Hinojosa, R. Romo, A. Huete, C. Curtis, & E. Glenn. 2003. Quantifying land cover and avian habitat in the Delta of the Colorado River, pp 1-4, Proceedings: 30th International Symposium on Remote Sensing of Environment (ISRSE). Honolulu, Hawai`i, November 10-14, 2003.
Nagler, P. L., E. P. Glenn, & T.L. Thompson. 2002. Comparison of transpiration rates among riparian trees using sap flow and leaf temperature methods. Proceedings: Ecological Society of America (ESA) 87th Annual Meeting and SER 14th International Conference. Tucson, AZ. August 4-9.
Rodriguez, P., A. Huete, D. Schaub, K. Didan, T. Miura, E. Glenn, & P. Nagler. 2002. Application of MODIS Vegetation Indices to Monitor the Seasonal Responses and Water Use Impacts over the Colorado River Delta Area, NW Mexico. Proceedings: MODIS Vegetation Workshop I, sponsored by Numerical Terradynamic Simulation Group (NTSG). Missoula, Montana, July 15-18, 2002.
Hinojosa-Huerta, O., P.L. Nagler, Y. Carrillo-Guerrero, E. Zamora-Hernandez, J. Garcia-Hernandez, F. Zamora-Arroyo, & E.P. Glenn. 2002. Andrade Mesa Wetlands of the All-American Canal: Natural Resources Journal, 42(4), 899-914. https://www.researchgate.net/publication/257526110_Andrade_Mesa_Wetlands_of_the_All-American_Canal
Nagler, P. L. 2002. GIS Mapping for Riparian Habitat & Vegetation, Colorado River Delta: Ground, Aerial, and Satellite. Proceedings: Priorities in the Colorado River Delta: A State-of-Knowledge. Tijuana, Mexico. October 15-17, 2002.
Nagler, P.L., E.P. Glenn, & A.R. Huete. 2001. Assessment of spectral vegetation indices for riparian vegetation in the Colorado River Delta, Mexico: Journal of Arid Environments, 49(1), 91-110. Published: Sept. 2001. https://doi.org/10.1006/jare.2001.0844
Glenn, E.P., F. Zamora-Arroyo, P.L. Nagler, M. Briggs, W. Shaw, & K. Flessa. 2001. Ecology and conservation biology of the Colorado River Delta, Mexico: Journal of Arid Environments, 49(1), 5-16. https://doi.org/10.1006/jare.2001.0832
Zamora-Arroyo*, F., P.L. Nagler*, M. Briggs, D. Radtke, H. Rodriquez, J. Garcia, A. Huete, C. Valdez, & E.P. Glenn. 2001. Regeneration of native trees in response to flood releases from the United States into the Delta of the Colorado River, Mexico: Journal of Arid Environments, 49, 49-64, https://doi.org/10.1006/jare.2001.0835 *senior co-authors
Glenn, E., V. Gerhart, S. Nelson, D. Moore, P. Nagler, & C. Machado. 2001. A community-based polyculture system in Hawai’i that incorporates all the life stages of Gracilaria parvispora (Rhodophyta): XVIIth International Seaweed Symposium Proceedings, p. 65-73, University of Cape Town, South Africa, January 29, 2001.
Nagler, P.L., K. Gillon, J. Pitt, B. Snape, & E.P. Glenn. 2000. Application of the U.S. Endangered Species Act across international borders: the case of the Colorado River Delta, Mexico: Environmental Science and Policy, 67-72. https://doi.org/10.1016/s1462-9011(00) 00072-1 and https://ur.booksc.eu/book/5018856/381160
Nagler, P.L., C.S.T. Daughtry, & S.N. Goward. 2000. Plant Litter and Soil Reflectance: Remote Sensing of Environment, 71(2), 207-215. https://doi.org/10.1016/S0034-4257(99)00082-6
Nagler, P.L., Y. Inoue, C.S.T. Daughtry, & A.L. Russ. 1998. Shortwave Infrared Reflectance of Mixed Scenes of Soils and Crop Residues: American Society of Agronomy Proceedings, p. 118-121, Baltimore, MD, Oct 18-22, 1998.
Nagler, P.L., Y. Inoue, & C.S.T. Daughtry. 1997. Shortwave Infrared Reflectance of Mixed Plant Litter and Soils Samples for Quantitative Estimation of Percent Cover, vol.2, pp. 988-991. Proceedings: International Geoscience & Remote Sensing Symposium (IGARSS). Singapore. Aug. 3-8, 1997. https://doi.org/10.1109/IGARSS.1997.606359
Daughtry, Craig, PL Nagler, JE McMurtrey, & CL Lindwall. 1997. Measuring Crop Residue Cover by Shortwave Infrared Reflectance, pp. 41-45, Proceedings: American Society of Agronomy.
Daughtry, C.S.T., P.L. Nagler, M.S. Kim, J.E. McMurtrey III, & E.W. Chappelle. 1996. Spectral Reflectance of Soils and Crop Residues, pp. 505-511, In A.M.C. Davies & Phil Williams (Eds.) Near Infrared Spectroscopy: The Future Waves. NIR Publications, Chichester, UK.
Nagler, P.L., C.S.T. Daughtry, & S.N. Goward. 1996. Shortwave Infrared Spectral Reflectance of Plant Litter and Soils, vol.3, pp. 1803-1805. Proceedings: International Geoscience and Remote Sensing Symposium (IGARSS ‘96), Lincoln, Nebraska. May 30-31, 1996. https://doi.org/10.1109/IGARSS.1996.516806
Nagler, P.L., C.S.T. Daughtry, M.S. Kim, & S.N. Goward. 1995. Shortwave Infrared Spectral Reflectance of Crop Residues and Soils, pp. 23-28, Proceedings: American Society of Agronomy. St. Louis, Missouri, Gateway to the Future, Oct 29-Nov 3, 1995.
Daughtry, C.S.T., P.L. Nagler, M.S. Kim, J.E. McMurtrey III, & E.W. Chappelle. 1995. Spectral Reflectance of Soils and Crop Residues, pp. 1-7, Proceedings: 7th International Symposium on Near Infrared Spectroscopy. Montreal, Quebec, Canada. August 6-11, 1995. https://www.tib.eu/en/search/id/TIBKAT%3A215806425/Near-infrared-spectroscopy-the-future-waves-the/
Glenn, E., & P. Nagler. 2005. Comparative ecophysiology of Tamarix ramosissima and native trees in western U.S. riparian zones. Journal of Arid Environments, 61(3), 419-446. https://doi.org/10.1016/j.jaridenv.2004.09.025
Nagler, P., R. Scott, C. Westenburg, J. Cleverly, E. Glenn, & A. Huete. 2005. Evapotranspiration on western U.S. rivers estimated by the Enhanced Vegetation Index from MODIS and data from eddy covariance and Bowen ratio flux towers. Journal Article: Remote Sensing of Environment, 97(3), 337-351. https://doi.org/10.1016/j.rse.2005.05.011
Huete, A., H.Kim, E. Glenn, & P. Nagler. 2005. Land surface water variability and dynamics during a severe drought in the southwest, USA. Proceedings: International Symposium on Remote Sensing of Environment (ISRSE). St. Petersburg, Russia. June 20-24.
Nagler, P.L., E.P. Glenn, T.L. Thompson, & A. R. Huete. 2004. Leaf Area Index and Normalized Vegetation Difference Index as predictors of canopy characteristics and light interception by riparian species on the lower Colorado River: Agricultural and Forest Meteorology, 125(1-2), 1-17. https://doi.org/10.1016/j.agrformet.2004.03.008
Kim, H.J., Huete, A., Glenn, E., & Nagler, P. 2004. Spatial and Temporal Vegetation Dynamics and Relationships to Water Availability in the San Pedro Riparian Zone, Arizona. Proceedings: AVIRIS 2004 Workshop, Sponsored by the Jet Propulsion Lab, California Institute of Technology, Pasadena, California. Mar 31-Apr 2, 2004.
Rodriguez, P., A. Huete, D. Schaub, K. Didan, T. Miura, E. Glenn, & P. Nagler. 2004. Application of MODIS Vegetation Indices to Monitor the Seasonal Responses and Water Use Impacts over the Colorado River Delta Area, NW Mexico. Proceedings: 29th International Symposium on Remote Sensing of Environment, Buenos Aires, Argentina, April 8-12, 2004.
Nagler, P.L., E. Glenn, A. Huete, J. Cleverly, & Z. Wan. 2004. MODIS Vegetation Indices, MODIS Land Surface Temperatures and Micrometeorological Variables to Predict Riparian Evapotranspiration along the Middle Rio Grande. Proceedings: MODIS Vegetation Workshop II, Missoula, Montana. August 17-19, 2004.
Huete, A., K. Didan, D. Lampkin, E. Glenn, & P. Nagler. 2004. Multi-Year MODIS Time Series Analysis of Land Conversion Processes in Semiarid Regions. Proceedings: 70th American Society of Photogrammetry and Remote Sensing (ASPRS) Imaging and Geospatial Information Society, Multi-temporal Image Analysis and Applications – Part VIII: Land Cover Trend Analysis. Denver, Colorado, May 23-28, 2004.
Nagler, P.L., Curtis, C.C., & E.P. Glenn. 2004. An inexpensive digital vegetation mapping system. Proceedings: 4th International Symposium of the Photogrammetry and Remote Sensing Society (ISPRS), Mobile Mapping & Technology Conf., Paper #1089. Kunming, China. Mar. 29-31, 2004.
Nagler, P.L. 2004. Application of MODIS Vegetation Indices and Land Surface Temperatures to Predict Riparian Evapotranspiration across the Semi-Arid Southwest, Using Micro-meteorological Tower Data from the Middle Rio Grande, San Pedro River, and the Lower Colorado River. Proceedings: Geological Society of America, 36(5), 515. Denver, Colorado. November 7-10, 2004.
Ryder, E., S. Nelson, E. Glenn, P. Nagler, S. Napolean, & K. Fitzsimmons. 2004. Production of Gracilaria parvispora in two-phase polyculture systems in relation to nutrient requirements and uptake. A Review: Bulletin: Fish. Res. Agen. Supplement, 1, 71-76. https://www.researchgate.net/publication/228735423_Review_Production_of_Gracilaria_parvispora_in_two-phase_polyculture_systems_in_relation_to_nutrient_requirements_and_uptake
Nagler, P., E. Glenn, & R. C. Brusca. 2004. Proceedings: Conference on the Gulf of California, sponsored by the Arizona-Sonora Desert Museum & Packard Foundation. Tucson, AZ. June 17-23, 2004.
Nagler, P., E. Glenn, & R. C. Brusca. 2004. Photographic Atlas of Esteros and Other Coastal Wetlands of Conservation Interest in the Northern Gulf of California, 1-147. Arizona-Sonora Desert Museum, Tucson, AZ.
Nagler, P.L., E.P. Glenn, S. Nelson, & S. Napolean. 2003. Effects of fertilization treatment and stocking density on the growth and yield of the economic seaweed Gracilaria parvispora (Rhodophyta) in cage culture at Moloka’i, Hawai’i: Aquaculture, 219(1-4), 379-391. https://doi.org/10.1016/S0044-8486(02)00529-X
Nagler, P.L., E.P. Glenn, & T.L. Thompson. 2003. Comparison of transpiration rates among saltcedar, cottonwood and willow trees by sap flow and canopy temperature methods: Agricultural and Forest Meteorology, 110, 1-17. https://doi.org/10.1016/S0168-1923(02)00251-4
Nagler, P.L., Y. Inoue, E.P. Glenn, A. Russ, & C.S.T. Daughtry. 2003. Cellulose Absorption Index (CAI) to quantify mixed soil-plant litter scenes: Remote Sensing of Environment, 87, 310-325. https://doi.org/10.1016/j.rse.2003.06.001
Nagler, P., O. Hinojosa, R. Romo, A. Huete, C. Curtis, & E. Glenn. 2003. Quantifying land cover and avian habitat in the Delta of the Colorado River, pp 1-4, Proceedings: 30th International Symposium on Remote Sensing of Environment (ISRSE). Honolulu, Hawai`i, November 10-14, 2003.
Nagler, P. L., E. P. Glenn, & T.L. Thompson. 2002. Comparison of transpiration rates among riparian trees using sap flow and leaf temperature methods. Proceedings: Ecological Society of America (ESA) 87th Annual Meeting and SER 14th International Conference. Tucson, AZ. August 4-9.
Rodriguez, P., A. Huete, D. Schaub, K. Didan, T. Miura, E. Glenn, & P. Nagler. 2002. Application of MODIS Vegetation Indices to Monitor the Seasonal Responses and Water Use Impacts over the Colorado River Delta Area, NW Mexico. Proceedings: MODIS Vegetation Workshop I, sponsored by Numerical Terradynamic Simulation Group (NTSG). Missoula, Montana, July 15-18, 2002.
Hinojosa-Huerta, O., P.L. Nagler, Y. Carrillo-Guerrero, E. Zamora-Hernandez, J. Garcia-Hernandez, F. Zamora-Arroyo, & E.P. Glenn. 2002. Andrade Mesa Wetlands of the All-American Canal: Natural Resources Journal, 42(4), 899-914. https://www.researchgate.net/publication/257526110_Andrade_Mesa_Wetlands_of_the_All-American_Canal
Nagler, P. L. 2002. GIS Mapping for Riparian Habitat & Vegetation, Colorado River Delta: Ground, Aerial, and Satellite. Proceedings: Priorities in the Colorado River Delta: A State-of-Knowledge. Tijuana, Mexico. October 15-17, 2002.
Nagler, P.L., E.P. Glenn, & A.R. Huete. 2001. Assessment of spectral vegetation indices for riparian vegetation in the Colorado River Delta, Mexico: Journal of Arid Environments, 49(1), 91-110. Published: Sept. 2001. https://doi.org/10.1006/jare.2001.0844
Glenn, E.P., F. Zamora-Arroyo, P.L. Nagler, M. Briggs, W. Shaw, & K. Flessa. 2001. Ecology and conservation biology of the Colorado River Delta, Mexico: Journal of Arid Environments, 49(1), 5-16. https://doi.org/10.1006/jare.2001.0832
Zamora-Arroyo*, F., P.L. Nagler*, M. Briggs, D. Radtke, H. Rodriquez, J. Garcia, A. Huete, C. Valdez, & E.P. Glenn. 2001. Regeneration of native trees in response to flood releases from the United States into the Delta of the Colorado River, Mexico: Journal of Arid Environments, 49, 49-64, https://doi.org/10.1006/jare.2001.0835 *senior co-authors
Glenn, E., V. Gerhart, S. Nelson, D. Moore, P. Nagler, & C. Machado. 2001. A community-based polyculture system in Hawai’i that incorporates all the life stages of Gracilaria parvispora (Rhodophyta): XVIIth International Seaweed Symposium Proceedings, p. 65-73, University of Cape Town, South Africa, January 29, 2001.
Nagler, P.L., K. Gillon, J. Pitt, B. Snape, & E.P. Glenn. 2000. Application of the U.S. Endangered Species Act across international borders: the case of the Colorado River Delta, Mexico: Environmental Science and Policy, 67-72. https://doi.org/10.1016/s1462-9011(00) 00072-1 and https://ur.booksc.eu/book/5018856/381160
Nagler, P.L., C.S.T. Daughtry, & S.N. Goward. 2000. Plant Litter and Soil Reflectance: Remote Sensing of Environment, 71(2), 207-215. https://doi.org/10.1016/S0034-4257(99)00082-6
Nagler, P.L., Y. Inoue, C.S.T. Daughtry, & A.L. Russ. 1998. Shortwave Infrared Reflectance of Mixed Scenes of Soils and Crop Residues: American Society of Agronomy Proceedings, p. 118-121, Baltimore, MD, Oct 18-22, 1998.
Nagler, P.L., Y. Inoue, & C.S.T. Daughtry. 1997. Shortwave Infrared Reflectance of Mixed Plant Litter and Soils Samples for Quantitative Estimation of Percent Cover, vol.2, pp. 988-991. Proceedings: International Geoscience & Remote Sensing Symposium (IGARSS). Singapore. Aug. 3-8, 1997. https://doi.org/10.1109/IGARSS.1997.606359
Daughtry, Craig, PL Nagler, JE McMurtrey, & CL Lindwall. 1997. Measuring Crop Residue Cover by Shortwave Infrared Reflectance, pp. 41-45, Proceedings: American Society of Agronomy.
Daughtry, C.S.T., P.L. Nagler, M.S. Kim, J.E. McMurtrey III, & E.W. Chappelle. 1996. Spectral Reflectance of Soils and Crop Residues, pp. 505-511, In A.M.C. Davies & Phil Williams (Eds.) Near Infrared Spectroscopy: The Future Waves. NIR Publications, Chichester, UK.
Nagler, P.L., C.S.T. Daughtry, & S.N. Goward. 1996. Shortwave Infrared Spectral Reflectance of Plant Litter and Soils, vol.3, pp. 1803-1805. Proceedings: International Geoscience and Remote Sensing Symposium (IGARSS ‘96), Lincoln, Nebraska. May 30-31, 1996. https://doi.org/10.1109/IGARSS.1996.516806
Nagler, P.L., C.S.T. Daughtry, M.S. Kim, & S.N. Goward. 1995. Shortwave Infrared Spectral Reflectance of Crop Residues and Soils, pp. 23-28, Proceedings: American Society of Agronomy. St. Louis, Missouri, Gateway to the Future, Oct 29-Nov 3, 1995.
Daughtry, C.S.T., P.L. Nagler, M.S. Kim, J.E. McMurtrey III, & E.W. Chappelle. 1995. Spectral Reflectance of Soils and Crop Residues, pp. 1-7, Proceedings: 7th International Symposium on Near Infrared Spectroscopy. Montreal, Quebec, Canada. August 6-11, 1995. https://www.tib.eu/en/search/id/TIBKAT%3A215806425/Near-infrared-spectroscopy-the-future-waves-the/
Dissertation: Nagler, P.L. 2001. Remote Sensing Applications: Environmental Assessment of the Colorado River Delta, Mexico. University of Arizona, Tucson, Arizona, https://www.researchgate.net/publication/253581613_Remote_sensing_applications_Environmental_assessment_of_the_Colorado_River_Delta_in_Mexico
Thesis: Nagler, P.L. 1997. Plant Litter and Soil Reflectance. University of Maryland.
Thesis: Nagler, P.L. 1997. Plant Litter and Soil Reflectance. University of Maryland.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.
Science and Products
Filter Total Items: 102
Relationship between evapotranspiration and precipitation pulses in a semiarid rangeland estimated by moisture flux towers and MODIS vegetation indices Relationship between evapotranspiration and precipitation pulses in a semiarid rangeland estimated by moisture flux towers and MODIS vegetation indices
We used moisture Bowen ratio flux tower data and the enhanced vegetation index (EVI) from the moderate resolution imaging spectrometer (MODIS) on the Terra satellite to measure and scale evapotranspiration (ET) over sparsely vegetated grassland and shrubland sites in a semiarid watershed in southeastern Arizona from 2000 to 2004. The grassland tower site had higher mean annual ET (336 mm...
Authors
P.L. Nagler, E. Glenn, H. Kim, W. Emmerich, R.L. Scott, T. E. Huxman, A.R. Huete
Evapotranspiration in a cottonwood (Populus fremontii) restoration plantation estimated by sap flow and remote sensing methods Evapotranspiration in a cottonwood (Populus fremontii) restoration plantation estimated by sap flow and remote sensing methods
Native tree plantations have been proposed for the restoration of wildlife habitat in human-altered riparian corridors of western U.S. rivers. Evapotranspiration (ET) by riparian vegetation is an important, but poorly quantified, term in river water budgets. Native tree restoration plots will potentially increase ET. We used sap flow sensors and satellite imagery to estimate ET in a 8 ha
Authors
P. Nagler, A. Jetton, J. Fleming, K. Didan, E. Glenn, J. Erker, K. Morino, J. Milliken, S. Gloss
Buffelgrass (Pennisetum ciliare) land conversion and productivity in the plains of Sonora, Mexico Buffelgrass (Pennisetum ciliare) land conversion and productivity in the plains of Sonora, Mexico
Bufflelgrass (Pennisetum ciliare syn. Cenchrus ciliaris) is an African grass that has been widely introduced in subtropical arid regions of the world to improve rangelands for cattle production. However, it can have a negative effect on the diversity of native plant communities. Buffelgrass was introduced to Sonora, Mexico in the 1970s as a means to bolster the cattle industry. “Desmonte...
Authors
Kim Franklin, Kelly Lyons, Pamela Nagler, Derrick Lampkin, Edward Glenn, Francisco Molina-Freaner, Therese Markow, Alfredo Huete
Coastal wetlands of the northern Gulf of California: Inventory and conservation status Coastal wetlands of the northern Gulf of California: Inventory and conservation status
1. Above 28°N, the coastline of the northern Gulf of California is indented at frequent intervals by negative or inverse estuaries that are saltier at their backs than at their mouths due to the lack of freshwater inflow. These ‘esteros’ total over 215 000 ha in area and encompass mangrove marshes below 29°N and saltgrass (Distichlis palmeri) marshes north of 29°N. An additional 6000 ha...
Authors
Edward P. Glenn, Pamela Nagler, Richard Brusca, Osvel Hinojosa-Huera
Regeneration of native trees in the presence of invasive saltcedar in the Colorado River Delta, Mexico Regeneration of native trees in the presence of invasive saltcedar in the Colorado River Delta, Mexico
Many riparian zones in the Sonoran Desert have been altered by elimination of the normal flood regime; such changes to the flow regime have contributed to the spread of saltcedar (Tamarix ramosissma Ledeb.), an exotic, salt-tolerant shrub. It has been proposed that reestablishment of a natural flow regime on these rivers might permit passive restoration of native trees, without the need...
Authors
Pamela Nagler, Osvel Hinojosa-Huerta, Edward P. Glenn, Jaqueline Garcia-Hernandez, Reggie Romo, Alfredo Huete, Stephen Nelson
Vegetation mapping for change detection on an arid-zone river Vegetation mapping for change detection on an arid-zone river
A vegetation mapping system for change detection was tested at the Havasu National Wildlife Refuge (HNWR) on the Lower Colorado River. A low-cost, aerial photomosaic of the 4200 ha, study area was constructed utilizing an automated digital camera system, supplemented with oblique photographs to aid in determining species composition and plant heights. Ground-truth plots showed high...
Authors
Pamela Nagler, Edward P. Glenn, Kim Hursh, Charles Curtin, Alfredo Huete
Non-USGS Publications**
Nagler, P., J. Cleverly, D. Lampkin, E. Glenn, A. Huete, & Z. Wan. 2005. Predicting riparian evapotranspiration from MODIS vegetation indices and meteorological data. Remote Sensing of Environment, 94(1), 17-30. https://doi.org/10.1016/j.rse.2004.08.009
Glenn, E., & P. Nagler. 2005. Comparative ecophysiology of Tamarix ramosissima and native trees in western U.S. riparian zones. Journal of Arid Environments, 61(3), 419-446. https://doi.org/10.1016/j.jaridenv.2004.09.025
Nagler, P., R. Scott, C. Westenburg, J. Cleverly, E. Glenn, & A. Huete. 2005. Evapotranspiration on western U.S. rivers estimated by the Enhanced Vegetation Index from MODIS and data from eddy covariance and Bowen ratio flux towers. Journal Article: Remote Sensing of Environment, 97(3), 337-351. https://doi.org/10.1016/j.rse.2005.05.011
Huete, A., H.Kim, E. Glenn, & P. Nagler. 2005. Land surface water variability and dynamics during a severe drought in the southwest, USA. Proceedings: International Symposium on Remote Sensing of Environment (ISRSE). St. Petersburg, Russia. June 20-24.
Nagler, P.L., E.P. Glenn, T.L. Thompson, & A. R. Huete. 2004. Leaf Area Index and Normalized Vegetation Difference Index as predictors of canopy characteristics and light interception by riparian species on the lower Colorado River: Agricultural and Forest Meteorology, 125(1-2), 1-17. https://doi.org/10.1016/j.agrformet.2004.03.008
Kim, H.J., Huete, A., Glenn, E., & Nagler, P. 2004. Spatial and Temporal Vegetation Dynamics and Relationships to Water Availability in the San Pedro Riparian Zone, Arizona. Proceedings: AVIRIS 2004 Workshop, Sponsored by the Jet Propulsion Lab, California Institute of Technology, Pasadena, California. Mar 31-Apr 2, 2004.
Rodriguez, P., A. Huete, D. Schaub, K. Didan, T. Miura, E. Glenn, & P. Nagler. 2004. Application of MODIS Vegetation Indices to Monitor the Seasonal Responses and Water Use Impacts over the Colorado River Delta Area, NW Mexico. Proceedings: 29th International Symposium on Remote Sensing of Environment, Buenos Aires, Argentina, April 8-12, 2004.
Nagler, P.L., E. Glenn, A. Huete, J. Cleverly, & Z. Wan. 2004. MODIS Vegetation Indices, MODIS Land Surface Temperatures and Micrometeorological Variables to Predict Riparian Evapotranspiration along the Middle Rio Grande. Proceedings: MODIS Vegetation Workshop II, Missoula, Montana. August 17-19, 2004.
Huete, A., K. Didan, D. Lampkin, E. Glenn, & P. Nagler. 2004. Multi-Year MODIS Time Series Analysis of Land Conversion Processes in Semiarid Regions. Proceedings: 70th American Society of Photogrammetry and Remote Sensing (ASPRS) Imaging and Geospatial Information Society, Multi-temporal Image Analysis and Applications – Part VIII: Land Cover Trend Analysis. Denver, Colorado, May 23-28, 2004.
Nagler, P.L., Curtis, C.C., & E.P. Glenn. 2004. An inexpensive digital vegetation mapping system. Proceedings: 4th International Symposium of the Photogrammetry and Remote Sensing Society (ISPRS), Mobile Mapping & Technology Conf., Paper #1089. Kunming, China. Mar. 29-31, 2004.
Nagler, P.L. 2004. Application of MODIS Vegetation Indices and Land Surface Temperatures to Predict Riparian Evapotranspiration across the Semi-Arid Southwest, Using Micro-meteorological Tower Data from the Middle Rio Grande, San Pedro River, and the Lower Colorado River. Proceedings: Geological Society of America, 36(5), 515. Denver, Colorado. November 7-10, 2004.
Ryder, E., S. Nelson, E. Glenn, P. Nagler, S. Napolean, & K. Fitzsimmons. 2004. Production of Gracilaria parvispora in two-phase polyculture systems in relation to nutrient requirements and uptake. A Review: Bulletin: Fish. Res. Agen. Supplement, 1, 71-76. https://www.researchgate.net/publication/228735423_Review_Production_of_Gracilaria_parvispora_in_two-phase_polyculture_systems_in_relation_to_nutrient_requirements_and_uptake
Nagler, P., E. Glenn, & R. C. Brusca. 2004. Proceedings: Conference on the Gulf of California, sponsored by the Arizona-Sonora Desert Museum & Packard Foundation. Tucson, AZ. June 17-23, 2004.
Nagler, P., E. Glenn, & R. C. Brusca. 2004. Photographic Atlas of Esteros and Other Coastal Wetlands of Conservation Interest in the Northern Gulf of California, 1-147. Arizona-Sonora Desert Museum, Tucson, AZ.
Nagler, P.L., E.P. Glenn, S. Nelson, & S. Napolean. 2003. Effects of fertilization treatment and stocking density on the growth and yield of the economic seaweed Gracilaria parvispora (Rhodophyta) in cage culture at Moloka’i, Hawai’i: Aquaculture, 219(1-4), 379-391. https://doi.org/10.1016/S0044-8486(02)00529-X
Nagler, P.L., E.P. Glenn, & T.L. Thompson. 2003. Comparison of transpiration rates among saltcedar, cottonwood and willow trees by sap flow and canopy temperature methods: Agricultural and Forest Meteorology, 110, 1-17. https://doi.org/10.1016/S0168-1923(02)00251-4
Nagler, P.L., Y. Inoue, E.P. Glenn, A. Russ, & C.S.T. Daughtry. 2003. Cellulose Absorption Index (CAI) to quantify mixed soil-plant litter scenes: Remote Sensing of Environment, 87, 310-325. https://doi.org/10.1016/j.rse.2003.06.001
Nagler, P., O. Hinojosa, R. Romo, A. Huete, C. Curtis, & E. Glenn. 2003. Quantifying land cover and avian habitat in the Delta of the Colorado River, pp 1-4, Proceedings: 30th International Symposium on Remote Sensing of Environment (ISRSE). Honolulu, Hawai`i, November 10-14, 2003.
Nagler, P. L., E. P. Glenn, & T.L. Thompson. 2002. Comparison of transpiration rates among riparian trees using sap flow and leaf temperature methods. Proceedings: Ecological Society of America (ESA) 87th Annual Meeting and SER 14th International Conference. Tucson, AZ. August 4-9.
Rodriguez, P., A. Huete, D. Schaub, K. Didan, T. Miura, E. Glenn, & P. Nagler. 2002. Application of MODIS Vegetation Indices to Monitor the Seasonal Responses and Water Use Impacts over the Colorado River Delta Area, NW Mexico. Proceedings: MODIS Vegetation Workshop I, sponsored by Numerical Terradynamic Simulation Group (NTSG). Missoula, Montana, July 15-18, 2002.
Hinojosa-Huerta, O., P.L. Nagler, Y. Carrillo-Guerrero, E. Zamora-Hernandez, J. Garcia-Hernandez, F. Zamora-Arroyo, & E.P. Glenn. 2002. Andrade Mesa Wetlands of the All-American Canal: Natural Resources Journal, 42(4), 899-914. https://www.researchgate.net/publication/257526110_Andrade_Mesa_Wetlands_of_the_All-American_Canal
Nagler, P. L. 2002. GIS Mapping for Riparian Habitat & Vegetation, Colorado River Delta: Ground, Aerial, and Satellite. Proceedings: Priorities in the Colorado River Delta: A State-of-Knowledge. Tijuana, Mexico. October 15-17, 2002.
Nagler, P.L., E.P. Glenn, & A.R. Huete. 2001. Assessment of spectral vegetation indices for riparian vegetation in the Colorado River Delta, Mexico: Journal of Arid Environments, 49(1), 91-110. Published: Sept. 2001. https://doi.org/10.1006/jare.2001.0844
Glenn, E.P., F. Zamora-Arroyo, P.L. Nagler, M. Briggs, W. Shaw, & K. Flessa. 2001. Ecology and conservation biology of the Colorado River Delta, Mexico: Journal of Arid Environments, 49(1), 5-16. https://doi.org/10.1006/jare.2001.0832
Zamora-Arroyo*, F., P.L. Nagler*, M. Briggs, D. Radtke, H. Rodriquez, J. Garcia, A. Huete, C. Valdez, & E.P. Glenn. 2001. Regeneration of native trees in response to flood releases from the United States into the Delta of the Colorado River, Mexico: Journal of Arid Environments, 49, 49-64, https://doi.org/10.1006/jare.2001.0835 *senior co-authors
Glenn, E., V. Gerhart, S. Nelson, D. Moore, P. Nagler, & C. Machado. 2001. A community-based polyculture system in Hawai’i that incorporates all the life stages of Gracilaria parvispora (Rhodophyta): XVIIth International Seaweed Symposium Proceedings, p. 65-73, University of Cape Town, South Africa, January 29, 2001.
Nagler, P.L., K. Gillon, J. Pitt, B. Snape, & E.P. Glenn. 2000. Application of the U.S. Endangered Species Act across international borders: the case of the Colorado River Delta, Mexico: Environmental Science and Policy, 67-72. https://doi.org/10.1016/s1462-9011(00) 00072-1 and https://ur.booksc.eu/book/5018856/381160
Nagler, P.L., C.S.T. Daughtry, & S.N. Goward. 2000. Plant Litter and Soil Reflectance: Remote Sensing of Environment, 71(2), 207-215. https://doi.org/10.1016/S0034-4257(99)00082-6
Nagler, P.L., Y. Inoue, C.S.T. Daughtry, & A.L. Russ. 1998. Shortwave Infrared Reflectance of Mixed Scenes of Soils and Crop Residues: American Society of Agronomy Proceedings, p. 118-121, Baltimore, MD, Oct 18-22, 1998.
Nagler, P.L., Y. Inoue, & C.S.T. Daughtry. 1997. Shortwave Infrared Reflectance of Mixed Plant Litter and Soils Samples for Quantitative Estimation of Percent Cover, vol.2, pp. 988-991. Proceedings: International Geoscience & Remote Sensing Symposium (IGARSS). Singapore. Aug. 3-8, 1997. https://doi.org/10.1109/IGARSS.1997.606359
Daughtry, Craig, PL Nagler, JE McMurtrey, & CL Lindwall. 1997. Measuring Crop Residue Cover by Shortwave Infrared Reflectance, pp. 41-45, Proceedings: American Society of Agronomy.
Daughtry, C.S.T., P.L. Nagler, M.S. Kim, J.E. McMurtrey III, & E.W. Chappelle. 1996. Spectral Reflectance of Soils and Crop Residues, pp. 505-511, In A.M.C. Davies & Phil Williams (Eds.) Near Infrared Spectroscopy: The Future Waves. NIR Publications, Chichester, UK.
Nagler, P.L., C.S.T. Daughtry, & S.N. Goward. 1996. Shortwave Infrared Spectral Reflectance of Plant Litter and Soils, vol.3, pp. 1803-1805. Proceedings: International Geoscience and Remote Sensing Symposium (IGARSS ‘96), Lincoln, Nebraska. May 30-31, 1996. https://doi.org/10.1109/IGARSS.1996.516806
Nagler, P.L., C.S.T. Daughtry, M.S. Kim, & S.N. Goward. 1995. Shortwave Infrared Spectral Reflectance of Crop Residues and Soils, pp. 23-28, Proceedings: American Society of Agronomy. St. Louis, Missouri, Gateway to the Future, Oct 29-Nov 3, 1995.
Daughtry, C.S.T., P.L. Nagler, M.S. Kim, J.E. McMurtrey III, & E.W. Chappelle. 1995. Spectral Reflectance of Soils and Crop Residues, pp. 1-7, Proceedings: 7th International Symposium on Near Infrared Spectroscopy. Montreal, Quebec, Canada. August 6-11, 1995. https://www.tib.eu/en/search/id/TIBKAT%3A215806425/Near-infrared-spectroscopy-the-future-waves-the/
Glenn, E., & P. Nagler. 2005. Comparative ecophysiology of Tamarix ramosissima and native trees in western U.S. riparian zones. Journal of Arid Environments, 61(3), 419-446. https://doi.org/10.1016/j.jaridenv.2004.09.025
Nagler, P., R. Scott, C. Westenburg, J. Cleverly, E. Glenn, & A. Huete. 2005. Evapotranspiration on western U.S. rivers estimated by the Enhanced Vegetation Index from MODIS and data from eddy covariance and Bowen ratio flux towers. Journal Article: Remote Sensing of Environment, 97(3), 337-351. https://doi.org/10.1016/j.rse.2005.05.011
Huete, A., H.Kim, E. Glenn, & P. Nagler. 2005. Land surface water variability and dynamics during a severe drought in the southwest, USA. Proceedings: International Symposium on Remote Sensing of Environment (ISRSE). St. Petersburg, Russia. June 20-24.
Nagler, P.L., E.P. Glenn, T.L. Thompson, & A. R. Huete. 2004. Leaf Area Index and Normalized Vegetation Difference Index as predictors of canopy characteristics and light interception by riparian species on the lower Colorado River: Agricultural and Forest Meteorology, 125(1-2), 1-17. https://doi.org/10.1016/j.agrformet.2004.03.008
Kim, H.J., Huete, A., Glenn, E., & Nagler, P. 2004. Spatial and Temporal Vegetation Dynamics and Relationships to Water Availability in the San Pedro Riparian Zone, Arizona. Proceedings: AVIRIS 2004 Workshop, Sponsored by the Jet Propulsion Lab, California Institute of Technology, Pasadena, California. Mar 31-Apr 2, 2004.
Rodriguez, P., A. Huete, D. Schaub, K. Didan, T. Miura, E. Glenn, & P. Nagler. 2004. Application of MODIS Vegetation Indices to Monitor the Seasonal Responses and Water Use Impacts over the Colorado River Delta Area, NW Mexico. Proceedings: 29th International Symposium on Remote Sensing of Environment, Buenos Aires, Argentina, April 8-12, 2004.
Nagler, P.L., E. Glenn, A. Huete, J. Cleverly, & Z. Wan. 2004. MODIS Vegetation Indices, MODIS Land Surface Temperatures and Micrometeorological Variables to Predict Riparian Evapotranspiration along the Middle Rio Grande. Proceedings: MODIS Vegetation Workshop II, Missoula, Montana. August 17-19, 2004.
Huete, A., K. Didan, D. Lampkin, E. Glenn, & P. Nagler. 2004. Multi-Year MODIS Time Series Analysis of Land Conversion Processes in Semiarid Regions. Proceedings: 70th American Society of Photogrammetry and Remote Sensing (ASPRS) Imaging and Geospatial Information Society, Multi-temporal Image Analysis and Applications – Part VIII: Land Cover Trend Analysis. Denver, Colorado, May 23-28, 2004.
Nagler, P.L., Curtis, C.C., & E.P. Glenn. 2004. An inexpensive digital vegetation mapping system. Proceedings: 4th International Symposium of the Photogrammetry and Remote Sensing Society (ISPRS), Mobile Mapping & Technology Conf., Paper #1089. Kunming, China. Mar. 29-31, 2004.
Nagler, P.L. 2004. Application of MODIS Vegetation Indices and Land Surface Temperatures to Predict Riparian Evapotranspiration across the Semi-Arid Southwest, Using Micro-meteorological Tower Data from the Middle Rio Grande, San Pedro River, and the Lower Colorado River. Proceedings: Geological Society of America, 36(5), 515. Denver, Colorado. November 7-10, 2004.
Ryder, E., S. Nelson, E. Glenn, P. Nagler, S. Napolean, & K. Fitzsimmons. 2004. Production of Gracilaria parvispora in two-phase polyculture systems in relation to nutrient requirements and uptake. A Review: Bulletin: Fish. Res. Agen. Supplement, 1, 71-76. https://www.researchgate.net/publication/228735423_Review_Production_of_Gracilaria_parvispora_in_two-phase_polyculture_systems_in_relation_to_nutrient_requirements_and_uptake
Nagler, P., E. Glenn, & R. C. Brusca. 2004. Proceedings: Conference on the Gulf of California, sponsored by the Arizona-Sonora Desert Museum & Packard Foundation. Tucson, AZ. June 17-23, 2004.
Nagler, P., E. Glenn, & R. C. Brusca. 2004. Photographic Atlas of Esteros and Other Coastal Wetlands of Conservation Interest in the Northern Gulf of California, 1-147. Arizona-Sonora Desert Museum, Tucson, AZ.
Nagler, P.L., E.P. Glenn, S. Nelson, & S. Napolean. 2003. Effects of fertilization treatment and stocking density on the growth and yield of the economic seaweed Gracilaria parvispora (Rhodophyta) in cage culture at Moloka’i, Hawai’i: Aquaculture, 219(1-4), 379-391. https://doi.org/10.1016/S0044-8486(02)00529-X
Nagler, P.L., E.P. Glenn, & T.L. Thompson. 2003. Comparison of transpiration rates among saltcedar, cottonwood and willow trees by sap flow and canopy temperature methods: Agricultural and Forest Meteorology, 110, 1-17. https://doi.org/10.1016/S0168-1923(02)00251-4
Nagler, P.L., Y. Inoue, E.P. Glenn, A. Russ, & C.S.T. Daughtry. 2003. Cellulose Absorption Index (CAI) to quantify mixed soil-plant litter scenes: Remote Sensing of Environment, 87, 310-325. https://doi.org/10.1016/j.rse.2003.06.001
Nagler, P., O. Hinojosa, R. Romo, A. Huete, C. Curtis, & E. Glenn. 2003. Quantifying land cover and avian habitat in the Delta of the Colorado River, pp 1-4, Proceedings: 30th International Symposium on Remote Sensing of Environment (ISRSE). Honolulu, Hawai`i, November 10-14, 2003.
Nagler, P. L., E. P. Glenn, & T.L. Thompson. 2002. Comparison of transpiration rates among riparian trees using sap flow and leaf temperature methods. Proceedings: Ecological Society of America (ESA) 87th Annual Meeting and SER 14th International Conference. Tucson, AZ. August 4-9.
Rodriguez, P., A. Huete, D. Schaub, K. Didan, T. Miura, E. Glenn, & P. Nagler. 2002. Application of MODIS Vegetation Indices to Monitor the Seasonal Responses and Water Use Impacts over the Colorado River Delta Area, NW Mexico. Proceedings: MODIS Vegetation Workshop I, sponsored by Numerical Terradynamic Simulation Group (NTSG). Missoula, Montana, July 15-18, 2002.
Hinojosa-Huerta, O., P.L. Nagler, Y. Carrillo-Guerrero, E. Zamora-Hernandez, J. Garcia-Hernandez, F. Zamora-Arroyo, & E.P. Glenn. 2002. Andrade Mesa Wetlands of the All-American Canal: Natural Resources Journal, 42(4), 899-914. https://www.researchgate.net/publication/257526110_Andrade_Mesa_Wetlands_of_the_All-American_Canal
Nagler, P. L. 2002. GIS Mapping for Riparian Habitat & Vegetation, Colorado River Delta: Ground, Aerial, and Satellite. Proceedings: Priorities in the Colorado River Delta: A State-of-Knowledge. Tijuana, Mexico. October 15-17, 2002.
Nagler, P.L., E.P. Glenn, & A.R. Huete. 2001. Assessment of spectral vegetation indices for riparian vegetation in the Colorado River Delta, Mexico: Journal of Arid Environments, 49(1), 91-110. Published: Sept. 2001. https://doi.org/10.1006/jare.2001.0844
Glenn, E.P., F. Zamora-Arroyo, P.L. Nagler, M. Briggs, W. Shaw, & K. Flessa. 2001. Ecology and conservation biology of the Colorado River Delta, Mexico: Journal of Arid Environments, 49(1), 5-16. https://doi.org/10.1006/jare.2001.0832
Zamora-Arroyo*, F., P.L. Nagler*, M. Briggs, D. Radtke, H. Rodriquez, J. Garcia, A. Huete, C. Valdez, & E.P. Glenn. 2001. Regeneration of native trees in response to flood releases from the United States into the Delta of the Colorado River, Mexico: Journal of Arid Environments, 49, 49-64, https://doi.org/10.1006/jare.2001.0835 *senior co-authors
Glenn, E., V. Gerhart, S. Nelson, D. Moore, P. Nagler, & C. Machado. 2001. A community-based polyculture system in Hawai’i that incorporates all the life stages of Gracilaria parvispora (Rhodophyta): XVIIth International Seaweed Symposium Proceedings, p. 65-73, University of Cape Town, South Africa, January 29, 2001.
Nagler, P.L., K. Gillon, J. Pitt, B. Snape, & E.P. Glenn. 2000. Application of the U.S. Endangered Species Act across international borders: the case of the Colorado River Delta, Mexico: Environmental Science and Policy, 67-72. https://doi.org/10.1016/s1462-9011(00) 00072-1 and https://ur.booksc.eu/book/5018856/381160
Nagler, P.L., C.S.T. Daughtry, & S.N. Goward. 2000. Plant Litter and Soil Reflectance: Remote Sensing of Environment, 71(2), 207-215. https://doi.org/10.1016/S0034-4257(99)00082-6
Nagler, P.L., Y. Inoue, C.S.T. Daughtry, & A.L. Russ. 1998. Shortwave Infrared Reflectance of Mixed Scenes of Soils and Crop Residues: American Society of Agronomy Proceedings, p. 118-121, Baltimore, MD, Oct 18-22, 1998.
Nagler, P.L., Y. Inoue, & C.S.T. Daughtry. 1997. Shortwave Infrared Reflectance of Mixed Plant Litter and Soils Samples for Quantitative Estimation of Percent Cover, vol.2, pp. 988-991. Proceedings: International Geoscience & Remote Sensing Symposium (IGARSS). Singapore. Aug. 3-8, 1997. https://doi.org/10.1109/IGARSS.1997.606359
Daughtry, Craig, PL Nagler, JE McMurtrey, & CL Lindwall. 1997. Measuring Crop Residue Cover by Shortwave Infrared Reflectance, pp. 41-45, Proceedings: American Society of Agronomy.
Daughtry, C.S.T., P.L. Nagler, M.S. Kim, J.E. McMurtrey III, & E.W. Chappelle. 1996. Spectral Reflectance of Soils and Crop Residues, pp. 505-511, In A.M.C. Davies & Phil Williams (Eds.) Near Infrared Spectroscopy: The Future Waves. NIR Publications, Chichester, UK.
Nagler, P.L., C.S.T. Daughtry, & S.N. Goward. 1996. Shortwave Infrared Spectral Reflectance of Plant Litter and Soils, vol.3, pp. 1803-1805. Proceedings: International Geoscience and Remote Sensing Symposium (IGARSS ‘96), Lincoln, Nebraska. May 30-31, 1996. https://doi.org/10.1109/IGARSS.1996.516806
Nagler, P.L., C.S.T. Daughtry, M.S. Kim, & S.N. Goward. 1995. Shortwave Infrared Spectral Reflectance of Crop Residues and Soils, pp. 23-28, Proceedings: American Society of Agronomy. St. Louis, Missouri, Gateway to the Future, Oct 29-Nov 3, 1995.
Daughtry, C.S.T., P.L. Nagler, M.S. Kim, J.E. McMurtrey III, & E.W. Chappelle. 1995. Spectral Reflectance of Soils and Crop Residues, pp. 1-7, Proceedings: 7th International Symposium on Near Infrared Spectroscopy. Montreal, Quebec, Canada. August 6-11, 1995. https://www.tib.eu/en/search/id/TIBKAT%3A215806425/Near-infrared-spectroscopy-the-future-waves-the/
Dissertation: Nagler, P.L. 2001. Remote Sensing Applications: Environmental Assessment of the Colorado River Delta, Mexico. University of Arizona, Tucson, Arizona, https://www.researchgate.net/publication/253581613_Remote_sensing_applications_Environmental_assessment_of_the_Colorado_River_Delta_in_Mexico
Thesis: Nagler, P.L. 1997. Plant Litter and Soil Reflectance. University of Maryland.
Thesis: Nagler, P.L. 1997. Plant Litter and Soil Reflectance. University of Maryland.
**Disclaimer: The views expressed in Non-USGS publications are those of the author and do not represent the views of the USGS, Department of the Interior, or the U.S. Government.