Landsat Next is the follow on mission to Landsat-9. Landsat Next which will provide data continuity to the decades long data record of the Earth’s land from space. It is still in the planning stages and is targeted for launch around 2030.
Christopher J Crawford, Ph.D.
Dr. Christopher (Chris) J. Crawford is a Research Physical Scientist with the U.S. Geological Survey at the Earth Resources Observation and Science (EROS) Center in the New Missions Branch.
Dr. Christopher (Chris) J. Crawford’s research and development focuses on the calibration, acquisition, processing, analysis, validation, and interpretation of multi-source ground, airborne, and spaceborne Earth remote sensing measurements using an array of scientific instrumentation. Dr. Crawford co-investigates with others on basic and applied research science in the fields of climate, cryosphere, atmosphere, hydrology, and aquatics where remote sensing measurements are a core observable.
Dr. Crawford serves as both the USGS’s operational Landsat 1-9 Project Scientist and Landsat Next Phase A formulation Project Scientist. He is the Principal Scientist for the USGS Landsat Science Research and Development Project, oversees Landsat’s Earth-looking science data acquisition strategy, and co-chaired the USGS/NASA 2018-2023 Landsat Science Team.
Dr. Crawford joined the USGS in 2019 after coming to EROS in 2017 to work on Landsat project science. From 2013-2017, Dr. Crawford worked at NASA’s Goddard Space Flight Center as a NASA Postdoctoral Program Fellow and as a Post-Doctoral Research Associate with the University of Maryland’s Earth Systems Science Interdisciplinary Center. From 2010-2013, he was a NASA Earth and Space Sciences Fellow at the University of Minnesota while conducting his Ph.D. studies.
Professional Experience
2022 – present, USGS Landsat Next Phase A Formulation Project Scientist, EROS Center
2019– present, USGS Landsat Data Acquisition Manager, EROS Center
2019 – present, USGS Landsat Science Research and Development Project Principal Scientist, EROS Center
2019 – present, USGS Landsat 1-9 Project Scientist, EROS Center
2019 – present, USGS Research Physical Scientist, EROS Center
2020 – 2023, USGS EROS-Imaging Spectroscopy Project Principal Scientist, EROS Center
2019 – 2023, USGS/NASA 2018-2023 Landsat Science Team Co-Chair, EROS Center
Education and Certifications
2013 Ph.D. (Geography), Department of Geography, University of Minnesota
2007 M.S. (Geography), Department of Geography, Virginia Polytechnic Institute and State University (Virginia Tech)
2004 B.S. Cum Laude (Forestry), Department of Forestry, Fisheries, and Wildlife, University of Tennessee-Knoxville
Science and Products
LEAP: Landsat Extended Acquisitions of the Poles Imaging Plan
Landsat Extended Acquisitions of the Poles (LEAP) imaging plan is a Landsat special request data collection program for Earth's polar regions that include Antarctica, Greenland, and Arctic sea ice geographies. The LEAP program includes Landsat 8 and Landsat 9 observatories that operationally acquire spaceborne images of all Earth's land surface and near-shore coastal environments. These images are
Landsat Next Planned Orbits and Swath Coverage
Landsat Next is the follow on mission to Landsat-9. Landsat Next which will provide data continuity to the decades long data record of the Earth’s land from space. It is still in the planning stages and is targeted for launch around 2030.
Filter Total Items: 19
Interdisciplinary science approach for harmful algal blooms (HABs) and algal toxins—A strategic science vision for the U.S. Geological Survey
Executive SummaryAlgal blooms in water, soils, dusts, and the environment have captured national attention because of concerns associated with exposure to algal toxins for humans and animals. Algal blooms naturally occur in all surface-water types and are important primary producers for aquatic ecosystems. However, excessive algae growth can be associated with many harmful effects ranging from aes
Authors
Victoria G. Christensen, Christopher J. Crawford, Robert J. Dusek, Michael J. Focazio, Lisa Reynolds Fogarty, Jennifer L. Graham, Celeste A. Journey, Mari E. Lee, James H. Larson, Sarah M. Stackpoole, Viviana Mazzei, Emily J. Pindilli, Barnett A. Rattner, E. Terrence Slonecker, Kristen B. McSwain, Timothy J. Reilly, Ashley E. Lopez
By
Ecosystems Mission Area, Water Resources Mission Area, Environmental Health Program, Toxic Substances Hydrology, Earth Resources Observation and Science (EROS) Center , Kansas Water Science Center, National Wildlife Health Center, New Jersey Water Science Center, New York Water Science Center, South Atlantic Water Science Center (SAWSC), Upper Midwest Water Science Center, Landsat Missions
Monitoring polar ice change in the twilight zone
Landsat’s new extended data collection program is mapping Arctic and Antarctic regions year-round, even in polar twilight.
Authors
Theodore A. Scambos, Christopher Shuman, Mark Fahnestock, Tasha Snow, Christopher J. Crawford
Need and vision for global medium-resolution Landsat and Sentinel-2 data products
Global changes in climate and land use are threatening natural ecosystems, biodiversity, and the ecosystem services people rely on. This is why it is necessary to track and monitor spatiotemporal change at a level of detail that can inform science, management, and policy development. The current constellation of multiple Landsat and Sentinel-2 satellites collecting imagery at predominantly ≤30-m s
Authors
Volker C. Radeloff, David P. Roy, Mike Wulder, Martha Anderson, Bruce D. Cook, Christopher J. Crawford, Mark Friedl, Feng Gao, Noel Gorelick, Matthew Hansen, Sean Healey, Patrick Hostert, Glynn Hulley, Justin Huntington, Dave Johnson, Christopher Neigh, Alexei Lyapustin, Leo Lymburner, Nima Pahlevan, Jean-Francois Pekel, Theodore A. Scambos, Crystal Schaaf, Peter Strobl, Eric Vermote, Curtis Woodcock, Hankui K. Zhang, Zhe Zhu
The 50-year Landsat collection 2 archive
The Landsat global consolidated data archive now exceeds 50 years. In recognition of the need for consistently processed data across the Landsat satellite series, the U.S. Geological Survey (USGS) initiated collection-based processing of the entire archive that was processed as Collection 1 in 2016. In preparation for the data from the now successfully launched Landsat 9, the USGS reprocessed the
Authors
Christopher J. Crawford, David P. Roy, Saeed Arab, Christopher Barnes, Eric Vermote, Glynn Hulley, Aaron Gerace, Michael J. Choate, Christopher Engebretson, Esad Micijevic, Gail L. Schmidt, Cody Anderson, Martha Anderson, Michelle Bouchard, Bruce D. Cook, Ray Dittmeier, Danny Howard, Calli Jenkerson, Minsu Kim, Tania Kleyians, Tom Maiersperger, Chase Mueller, Christopher Neigh, Linda Owen, Benjamin Page, Nima Pahelvan, Rajagopalan Rengarajan, Jean-Claude Roger, Kristi Sayler, Pat L Scaramuzza, Sergii Skakun, Lin Yan, Hankui K. Zhang, Zhe Zhu, Stephen G. Zahn
Summary of the Final Activities of the 2018-2023 Landsat Science Team
No abstract available.
Authors
Christopher Neigh, Christopher J. Crawford, Ellie McGinty
Calibration and validation for the Surface Biology and Geology (SBG) mission concept: Recommendations for a multi-sensor system for imaging spectroscopy and thermal imagery
The primary objective of the National Aeronautics and Space Administration (NASA) Surface Biology and Geology (SBG) mission is to measure biological, physical, chemical, and mineralogical features of the Earth's surface, realizing a key conceptual component of the envisioned NASA Earth System Observatory (ESO). SBG is planned to launch as a two-platform mission in the late 2020s, the first of the
Authors
Kevin R. Turpie, Kimberly Ann Casey, Christopher J. Crawford, Liane S Guild, Hugh H. Kieffer, Guoqing (Gary) Lin, Raymond F. Kokaly, Alok Shrestha, Cody Anderson, Shankar N. Ramaseri Chandra, Robert O. Green, Simon Hook, Constantine Lukashin, Kurt Thome
Validity of the Landsat surface reflectance archive for aquatic science: Implications for cloud-based analysis
Originally developed for terrestrial science and applications, the US Geological Survey Landsat surface reflectance (SR) archive spanning ~ 40 yr of observations has been increasingly utilized in large-scale water-quality studies. These products, however, have not been rigorously validated using in situ measured reflectance. This letter quantifies and demonstrates the quality of the SR products by
Authors
Daniel Andrade Maciel, Nima Pahlevan, Claudio Clemente Faria Barbosa, Evlyn Márcia Leão de Moraes de Novo, Rejane Souza Paulino, Vitor Souza Martins, Eric Vermote, Christopher J. Crawford
The not-so-dead of winter: Underwater light climate and primary productivity under snow and ice cover in inland lakes
As global surface temperatures continue to rise as a result of anthropogenic climate change, effects in temperate lakes are likely to be more pronounced than in other ecosystems. Decreases in snow and ice cover extent and duration, as well as extended periods of summer stratification have been observed in temperate lake systems throughout the Anthropocene. However, the effects of changing snow and
Authors
Andrew J. Bramburger, Ted Ozersky, Greg M. Silsbe, Christopher J. Crawford, Leif Olmanson, Krill Shchapov
Landsat 9 cross calibration under-fly of Landsat 8: Planning, and execution
During the early post-launch phase of the Landsat 9 mission, the Landsat 8 and 9 mission teams conducted a successful under-fly of Landsat 8 by Landsat 9, allowing for the near-simultaneous data collection of common Earth targets by the on-board sensors for cross-calibration. This effort, coordinated by the Landsat Calibration and Validation team, required contributions from various entities acros
Authors
Edward Kaita, Brian Markham, Md Obaidul Haque, Donald Dichmann, Aaron Gerace, Lawrence Leigh, Susan Good, Michael Schmidt, Christopher J. Crawford
Fifty years of Landsat science and impacts
Since 1972, the Landsat program has been continually monitoring the Earth, to now provide 50 years of digital, multispectral, medium spatial resolution observations. Over this time, Landsat data were crucial for many scientific and technical advances. Prior to the Landsat program, detailed, synoptic depictions of the Earth's surface were rare, and the ability to acquire and work with large dataset
Authors
Michael A. Wulder, David P. Roy, Volker C. Radeloff, Thomas Loveland, Martha C. Anderson, David M. Johnson, Sean Healey, Zhe Zhu, Theodore A. Scambos, Nima Pahlevan, Matthew Hansen, Noel Gorelick, Christopher J. Crawford, Jeffery G. Masek, Txomin Hermosilla, JoAnn C. White, Alan S. Belward, Crystal Schaaf, Curtis E. Woodcock, Justin L. Huntington, Leo Lymburner, Patrick Hostert, Feng Gao, Alexi Lyapustin, Jean-Francois Pekel, Peter Strobl, Eric Vermote, Bruce D. Cook
Impact of spectral resolution on quantifying cyanobacteria in lakes and reservoirs: A machine-learning assessment
Cyanobacterial harmful algal blooms are an increasing threat to coastal and inland waters. These blooms can be detected using optical radiometers due to the presence of phycocyanin (PC) pigments. The spectral resolution of best-available multispectral sensors limits their ability to diagnostically detect PC in the presence of other photosynthetic pigments. To assess the role of spectral resolution
Authors
Kiana Zolfaghari, Nima Pahlevan, Caren Binding, Daniela Gurlin, Stefan G.H. Simis, Antonio Ruiz Verdú, Lin Li, Christopher J. Crawford, Andrea VanderWoude, Reagan Errera, Arthur Zastepa, Claude R. Duguay
Taxonomic and functional differences between winter and summer crustacean zooplankton communities in lakes across a trophic gradient
Despite increasing interest in winter limnology, few studies have examined under-ice zooplankton communities and the factors shaping them in different types of temperate lakes. To better understand drivers of zooplankton community structure in winter and summer, we sampled 13 lakes across a large trophic status gradient for crustacean zooplankton abundance, taxonomic and functional community compo
Authors
Kirill Shchapov, P. Wilburn, A. Bramburger, G. Silsbe, L. Olmanson, Christopher J. Crawford, E. Litchmann, T. Ozersky
Non-USGS Publications**
Wulder, M.A., T.R. Loveland, D.P. Roy, C.J. Crawford, J.G. Masek, C.E. Woodcock, R.G. Allen, M.C. Anderson, A.S. Belward, W.B. Cohen, J. Dwyer, A. Erb, F. Gao, P. Griffiths, D. Helder, T. Hermosilla, J.D. Hipple, P. Hostert, M.J. Hughes, J. Huntington, D.M. Johnson, R. Kennedy, A. Kilic, Z. Li, L. Lymburner, J. McCorkel, N. Pahlevan, T.A. Scambos, C. Schaaf, J.R. Schott, Y. Sheng, J. Storey, E. Vermote, J., Vogelmann, J.C. White, R.H. Wynne, and Z. Zhu. (2019). Current status of Landsat program, science, and applications. Remote Sensing of Environment, 225:127-147. doi: 10.1016/j.rse.2019.02.015.
Crawford, C.J., T.R. Loveland, J.G. Masek, and M.A. Wulder. (2018). An overview of USGS-NASA Landsat Science Team activities during 2018. The Earth Observer 30(5):19-26.
Crawford, C.J., T.R. Loveland, M.A. Wulder, and J.R. Irons. (2018). Landsat Science Team 2017 summer meeting summary. The Earth Observer 30(1):21-25.
Brucker, L, C. Hiemstra, H.P. Marshall, K. Elder, R. De Roo, M. Mousavi, F. Bliven, W. Peterson, J. Deems, P. Gadomski, A. Gelvin, L. Spaete, T. Barnhart, T. Brandt, J Burkhart, C. Crawford, T. Datta. H. Erikstrod, N. Glenn, K. Hale, B. Holben, P. Houser, K. Jennings, R. Kelly, J. Kraft, A. Langlois, D. McGrath, C. Merriman, N. Molotch, A. Nolin, C. Polashenski, M. Raleigh, K. Rittger, C. Rodriguez, A. Roy, M. Skiles, E. Small, M. Tedesco, C. Tennant, A. Thompson, L. Tian, Z. Uhlmann, R. Webb, and M. Wingo. (2017). A first overview of SnowEx ground-based remote sensing activities during the winter 2016-2017. Proceedings from the IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2017:1391-1394. doi:10.1109/IGARSS.2017.8127223.
Kim, E, C. Gatebe, D. Hall, J. Newlin, A. Misakonis, K. Elder, H.P. Marshall, C. Hiemstra, L. Brucker, E. De Marco, C. Crawford, D.H Kang, and J. Entin. (2017). NASA’s SnowEx campaign: observing seasonal snow in a forested environment. Proceedings from the IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2017:1388-1390. doi:10.1109/IGARSS.2017.8127222.
Hall, D.K., C.C. Chickadel, C.J. Crawford, E.L. DeMarco, D.E. Jennings, M.D. Jhabvala, E.J. Kim, J.D. Lundquist, and A.W. Lunsford. (2017). The infrared sensor suite for SnowEx 2017. Proceedings from the IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2017:1406-1408. doi: 10.1109/IGARSS.2017.8127228.
Crawford, C.J., P.K. Campbell, E.M. Middleton, M.G. Hom, K.F. Huemmerich, and D.R. Landis. (2016). Retrieval of Lake Superior ice surfaces using EO-1 Hyperion, Landsat ETM+, and Landsat OLI. Proceedings from the 23rd IAHR International Symposium on Ice 5821:1-15.
Hall, D.K., C.J. Crawford, N.E. DiGirolamo, G.A. Riggs, and J.L. Foster. (2015). Detection of earlier snowmelt in the Wind River Range, Wyoming, using Landsat imagery, 1972-2013. Remote Sensing of Environment, 162:45-54. doi: 10.1016/j.rse.2015.01.032.
Crawford, C.J., D. Griffin, and K.F. Kipfmueller. (2015). Capturing season specific precipitation signals in the northern Rocky Mountains, USA using earlywood and latewood tree rings. Journal of Geophysical Research-Biogeosciences, 120. doi: 10.1002/2014JG002740.
Crawford, C.J. (2015). MODIS Terra Collection 6 fractional snow cover validation in mountainous terrain during spring snowmelt using Landsat TM and ETM+. Hydrological Processes, 29:128-138. doi: 10.1002/hyp.10134.
Klink, K., J.J. Wiersma, C.J. Crawford, D.D. Stuthman. (2014). Impacts of temperature and precipitation variability in the Northern Plains of the United States and Canada on the productivity of spring barely and oat. International Journal of Climatology, 34:2805-2818. doi: 10.1002/joc.3877.
Crawford, C.J. (2013). Evidence for spring mountain snowpack retreat from a Landsat-derived snow cover climate data record. The Cryosphere Discussion 7:2089-2117. DOI:10.5194/tcd-7- 2089-2013.
Crawford, C.J., S.M. Manson, M.E. Bauer, and D.K. Hall. (2013). Multitemporal snow cover mapping in mountainous terrain for Landsat climate data record development. Remote Sensing of Environment, 135:224-235. doi: 10.1016/j.rse.2013.04.004.
Crawford, C.J. (2012). Do high-elevation northern red oak tree rings share a common climate-driven growth signal? Arctic, Antarctic, and Alpine Research, 44:26-35. doi: 10.1657/1938- 4246-44.1.26.
Copenheaver, C.A., C.J. Crawford, and T.M. Ferrer. (2011). Age-dependent climate responses identified in the growth of white oak (Quercus alba). Trees, Structure, and Function. doi: 10.1007/s00468-011-0541-2.
Crawford, C.J. and L.M. Kennedy. (2009). Spatial and temporal patterns of tree encroachment into a Southern Appalachian grass/heath bald. Natural Areas Journal, 29(4):500-508.
**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.
Filter Total Items: 14
Science and Products
LEAP: Landsat Extended Acquisitions of the Poles Imaging Plan
Landsat Extended Acquisitions of the Poles (LEAP) imaging plan is a Landsat special request data collection program for Earth's polar regions that include Antarctica, Greenland, and Arctic sea ice geographies. The LEAP program includes Landsat 8 and Landsat 9 observatories that operationally acquire spaceborne images of all Earth's land surface and near-shore coastal environments. These images are
Landsat Next Planned Orbits and Swath Coverage
Landsat Next is the follow on mission to Landsat-9. Landsat Next which will provide data continuity to the decades long data record of the Earth’s land from space. It is still in the planning stages and is targeted for launch around 2030.
Landsat Next is the follow on mission to Landsat-9. Landsat Next which will provide data continuity to the decades long data record of the Earth’s land from space. It is still in the planning stages and is targeted for launch around 2030.
Filter Total Items: 19
Interdisciplinary science approach for harmful algal blooms (HABs) and algal toxins—A strategic science vision for the U.S. Geological Survey
Executive SummaryAlgal blooms in water, soils, dusts, and the environment have captured national attention because of concerns associated with exposure to algal toxins for humans and animals. Algal blooms naturally occur in all surface-water types and are important primary producers for aquatic ecosystems. However, excessive algae growth can be associated with many harmful effects ranging from aes
Authors
Victoria G. Christensen, Christopher J. Crawford, Robert J. Dusek, Michael J. Focazio, Lisa Reynolds Fogarty, Jennifer L. Graham, Celeste A. Journey, Mari E. Lee, James H. Larson, Sarah M. Stackpoole, Viviana Mazzei, Emily J. Pindilli, Barnett A. Rattner, E. Terrence Slonecker, Kristen B. McSwain, Timothy J. Reilly, Ashley E. Lopez
By
Ecosystems Mission Area, Water Resources Mission Area, Environmental Health Program, Toxic Substances Hydrology, Earth Resources Observation and Science (EROS) Center , Kansas Water Science Center, National Wildlife Health Center, New Jersey Water Science Center, New York Water Science Center, South Atlantic Water Science Center (SAWSC), Upper Midwest Water Science Center, Landsat Missions
Monitoring polar ice change in the twilight zone
Landsat’s new extended data collection program is mapping Arctic and Antarctic regions year-round, even in polar twilight.
Authors
Theodore A. Scambos, Christopher Shuman, Mark Fahnestock, Tasha Snow, Christopher J. Crawford
Need and vision for global medium-resolution Landsat and Sentinel-2 data products
Global changes in climate and land use are threatening natural ecosystems, biodiversity, and the ecosystem services people rely on. This is why it is necessary to track and monitor spatiotemporal change at a level of detail that can inform science, management, and policy development. The current constellation of multiple Landsat and Sentinel-2 satellites collecting imagery at predominantly ≤30-m s
Authors
Volker C. Radeloff, David P. Roy, Mike Wulder, Martha Anderson, Bruce D. Cook, Christopher J. Crawford, Mark Friedl, Feng Gao, Noel Gorelick, Matthew Hansen, Sean Healey, Patrick Hostert, Glynn Hulley, Justin Huntington, Dave Johnson, Christopher Neigh, Alexei Lyapustin, Leo Lymburner, Nima Pahlevan, Jean-Francois Pekel, Theodore A. Scambos, Crystal Schaaf, Peter Strobl, Eric Vermote, Curtis Woodcock, Hankui K. Zhang, Zhe Zhu
The 50-year Landsat collection 2 archive
The Landsat global consolidated data archive now exceeds 50 years. In recognition of the need for consistently processed data across the Landsat satellite series, the U.S. Geological Survey (USGS) initiated collection-based processing of the entire archive that was processed as Collection 1 in 2016. In preparation for the data from the now successfully launched Landsat 9, the USGS reprocessed the
Authors
Christopher J. Crawford, David P. Roy, Saeed Arab, Christopher Barnes, Eric Vermote, Glynn Hulley, Aaron Gerace, Michael J. Choate, Christopher Engebretson, Esad Micijevic, Gail L. Schmidt, Cody Anderson, Martha Anderson, Michelle Bouchard, Bruce D. Cook, Ray Dittmeier, Danny Howard, Calli Jenkerson, Minsu Kim, Tania Kleyians, Tom Maiersperger, Chase Mueller, Christopher Neigh, Linda Owen, Benjamin Page, Nima Pahelvan, Rajagopalan Rengarajan, Jean-Claude Roger, Kristi Sayler, Pat L Scaramuzza, Sergii Skakun, Lin Yan, Hankui K. Zhang, Zhe Zhu, Stephen G. Zahn
Summary of the Final Activities of the 2018-2023 Landsat Science Team
No abstract available.
Authors
Christopher Neigh, Christopher J. Crawford, Ellie McGinty
Calibration and validation for the Surface Biology and Geology (SBG) mission concept: Recommendations for a multi-sensor system for imaging spectroscopy and thermal imagery
The primary objective of the National Aeronautics and Space Administration (NASA) Surface Biology and Geology (SBG) mission is to measure biological, physical, chemical, and mineralogical features of the Earth's surface, realizing a key conceptual component of the envisioned NASA Earth System Observatory (ESO). SBG is planned to launch as a two-platform mission in the late 2020s, the first of the
Authors
Kevin R. Turpie, Kimberly Ann Casey, Christopher J. Crawford, Liane S Guild, Hugh H. Kieffer, Guoqing (Gary) Lin, Raymond F. Kokaly, Alok Shrestha, Cody Anderson, Shankar N. Ramaseri Chandra, Robert O. Green, Simon Hook, Constantine Lukashin, Kurt Thome
Validity of the Landsat surface reflectance archive for aquatic science: Implications for cloud-based analysis
Originally developed for terrestrial science and applications, the US Geological Survey Landsat surface reflectance (SR) archive spanning ~ 40 yr of observations has been increasingly utilized in large-scale water-quality studies. These products, however, have not been rigorously validated using in situ measured reflectance. This letter quantifies and demonstrates the quality of the SR products by
Authors
Daniel Andrade Maciel, Nima Pahlevan, Claudio Clemente Faria Barbosa, Evlyn Márcia Leão de Moraes de Novo, Rejane Souza Paulino, Vitor Souza Martins, Eric Vermote, Christopher J. Crawford
The not-so-dead of winter: Underwater light climate and primary productivity under snow and ice cover in inland lakes
As global surface temperatures continue to rise as a result of anthropogenic climate change, effects in temperate lakes are likely to be more pronounced than in other ecosystems. Decreases in snow and ice cover extent and duration, as well as extended periods of summer stratification have been observed in temperate lake systems throughout the Anthropocene. However, the effects of changing snow and
Authors
Andrew J. Bramburger, Ted Ozersky, Greg M. Silsbe, Christopher J. Crawford, Leif Olmanson, Krill Shchapov
Landsat 9 cross calibration under-fly of Landsat 8: Planning, and execution
During the early post-launch phase of the Landsat 9 mission, the Landsat 8 and 9 mission teams conducted a successful under-fly of Landsat 8 by Landsat 9, allowing for the near-simultaneous data collection of common Earth targets by the on-board sensors for cross-calibration. This effort, coordinated by the Landsat Calibration and Validation team, required contributions from various entities acros
Authors
Edward Kaita, Brian Markham, Md Obaidul Haque, Donald Dichmann, Aaron Gerace, Lawrence Leigh, Susan Good, Michael Schmidt, Christopher J. Crawford
Fifty years of Landsat science and impacts
Since 1972, the Landsat program has been continually monitoring the Earth, to now provide 50 years of digital, multispectral, medium spatial resolution observations. Over this time, Landsat data were crucial for many scientific and technical advances. Prior to the Landsat program, detailed, synoptic depictions of the Earth's surface were rare, and the ability to acquire and work with large dataset
Authors
Michael A. Wulder, David P. Roy, Volker C. Radeloff, Thomas Loveland, Martha C. Anderson, David M. Johnson, Sean Healey, Zhe Zhu, Theodore A. Scambos, Nima Pahlevan, Matthew Hansen, Noel Gorelick, Christopher J. Crawford, Jeffery G. Masek, Txomin Hermosilla, JoAnn C. White, Alan S. Belward, Crystal Schaaf, Curtis E. Woodcock, Justin L. Huntington, Leo Lymburner, Patrick Hostert, Feng Gao, Alexi Lyapustin, Jean-Francois Pekel, Peter Strobl, Eric Vermote, Bruce D. Cook
Impact of spectral resolution on quantifying cyanobacteria in lakes and reservoirs: A machine-learning assessment
Cyanobacterial harmful algal blooms are an increasing threat to coastal and inland waters. These blooms can be detected using optical radiometers due to the presence of phycocyanin (PC) pigments. The spectral resolution of best-available multispectral sensors limits their ability to diagnostically detect PC in the presence of other photosynthetic pigments. To assess the role of spectral resolution
Authors
Kiana Zolfaghari, Nima Pahlevan, Caren Binding, Daniela Gurlin, Stefan G.H. Simis, Antonio Ruiz Verdú, Lin Li, Christopher J. Crawford, Andrea VanderWoude, Reagan Errera, Arthur Zastepa, Claude R. Duguay
Taxonomic and functional differences between winter and summer crustacean zooplankton communities in lakes across a trophic gradient
Despite increasing interest in winter limnology, few studies have examined under-ice zooplankton communities and the factors shaping them in different types of temperate lakes. To better understand drivers of zooplankton community structure in winter and summer, we sampled 13 lakes across a large trophic status gradient for crustacean zooplankton abundance, taxonomic and functional community compo
Authors
Kirill Shchapov, P. Wilburn, A. Bramburger, G. Silsbe, L. Olmanson, Christopher J. Crawford, E. Litchmann, T. Ozersky
Non-USGS Publications**
Wulder, M.A., T.R. Loveland, D.P. Roy, C.J. Crawford, J.G. Masek, C.E. Woodcock, R.G. Allen, M.C. Anderson, A.S. Belward, W.B. Cohen, J. Dwyer, A. Erb, F. Gao, P. Griffiths, D. Helder, T. Hermosilla, J.D. Hipple, P. Hostert, M.J. Hughes, J. Huntington, D.M. Johnson, R. Kennedy, A. Kilic, Z. Li, L. Lymburner, J. McCorkel, N. Pahlevan, T.A. Scambos, C. Schaaf, J.R. Schott, Y. Sheng, J. Storey, E. Vermote, J., Vogelmann, J.C. White, R.H. Wynne, and Z. Zhu. (2019). Current status of Landsat program, science, and applications. Remote Sensing of Environment, 225:127-147. doi: 10.1016/j.rse.2019.02.015.
Crawford, C.J., T.R. Loveland, J.G. Masek, and M.A. Wulder. (2018). An overview of USGS-NASA Landsat Science Team activities during 2018. The Earth Observer 30(5):19-26.
Crawford, C.J., T.R. Loveland, M.A. Wulder, and J.R. Irons. (2018). Landsat Science Team 2017 summer meeting summary. The Earth Observer 30(1):21-25.
Brucker, L, C. Hiemstra, H.P. Marshall, K. Elder, R. De Roo, M. Mousavi, F. Bliven, W. Peterson, J. Deems, P. Gadomski, A. Gelvin, L. Spaete, T. Barnhart, T. Brandt, J Burkhart, C. Crawford, T. Datta. H. Erikstrod, N. Glenn, K. Hale, B. Holben, P. Houser, K. Jennings, R. Kelly, J. Kraft, A. Langlois, D. McGrath, C. Merriman, N. Molotch, A. Nolin, C. Polashenski, M. Raleigh, K. Rittger, C. Rodriguez, A. Roy, M. Skiles, E. Small, M. Tedesco, C. Tennant, A. Thompson, L. Tian, Z. Uhlmann, R. Webb, and M. Wingo. (2017). A first overview of SnowEx ground-based remote sensing activities during the winter 2016-2017. Proceedings from the IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2017:1391-1394. doi:10.1109/IGARSS.2017.8127223.
Kim, E, C. Gatebe, D. Hall, J. Newlin, A. Misakonis, K. Elder, H.P. Marshall, C. Hiemstra, L. Brucker, E. De Marco, C. Crawford, D.H Kang, and J. Entin. (2017). NASA’s SnowEx campaign: observing seasonal snow in a forested environment. Proceedings from the IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2017:1388-1390. doi:10.1109/IGARSS.2017.8127222.
Hall, D.K., C.C. Chickadel, C.J. Crawford, E.L. DeMarco, D.E. Jennings, M.D. Jhabvala, E.J. Kim, J.D. Lundquist, and A.W. Lunsford. (2017). The infrared sensor suite for SnowEx 2017. Proceedings from the IEEE International Geoscience and Remote Sensing Symposium (IGARSS) 2017:1406-1408. doi: 10.1109/IGARSS.2017.8127228.
Crawford, C.J., P.K. Campbell, E.M. Middleton, M.G. Hom, K.F. Huemmerich, and D.R. Landis. (2016). Retrieval of Lake Superior ice surfaces using EO-1 Hyperion, Landsat ETM+, and Landsat OLI. Proceedings from the 23rd IAHR International Symposium on Ice 5821:1-15.
Hall, D.K., C.J. Crawford, N.E. DiGirolamo, G.A. Riggs, and J.L. Foster. (2015). Detection of earlier snowmelt in the Wind River Range, Wyoming, using Landsat imagery, 1972-2013. Remote Sensing of Environment, 162:45-54. doi: 10.1016/j.rse.2015.01.032.
Crawford, C.J., D. Griffin, and K.F. Kipfmueller. (2015). Capturing season specific precipitation signals in the northern Rocky Mountains, USA using earlywood and latewood tree rings. Journal of Geophysical Research-Biogeosciences, 120. doi: 10.1002/2014JG002740.
Crawford, C.J. (2015). MODIS Terra Collection 6 fractional snow cover validation in mountainous terrain during spring snowmelt using Landsat TM and ETM+. Hydrological Processes, 29:128-138. doi: 10.1002/hyp.10134.
Klink, K., J.J. Wiersma, C.J. Crawford, D.D. Stuthman. (2014). Impacts of temperature and precipitation variability in the Northern Plains of the United States and Canada on the productivity of spring barely and oat. International Journal of Climatology, 34:2805-2818. doi: 10.1002/joc.3877.
Crawford, C.J. (2013). Evidence for spring mountain snowpack retreat from a Landsat-derived snow cover climate data record. The Cryosphere Discussion 7:2089-2117. DOI:10.5194/tcd-7- 2089-2013.
Crawford, C.J., S.M. Manson, M.E. Bauer, and D.K. Hall. (2013). Multitemporal snow cover mapping in mountainous terrain for Landsat climate data record development. Remote Sensing of Environment, 135:224-235. doi: 10.1016/j.rse.2013.04.004.
Crawford, C.J. (2012). Do high-elevation northern red oak tree rings share a common climate-driven growth signal? Arctic, Antarctic, and Alpine Research, 44:26-35. doi: 10.1657/1938- 4246-44.1.26.
Copenheaver, C.A., C.J. Crawford, and T.M. Ferrer. (2011). Age-dependent climate responses identified in the growth of white oak (Quercus alba). Trees, Structure, and Function. doi: 10.1007/s00468-011-0541-2.
Crawford, C.J. and L.M. Kennedy. (2009). Spatial and temporal patterns of tree encroachment into a Southern Appalachian grass/heath bald. Natural Areas Journal, 29(4):500-508.
**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.
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