James Callegary (Former Employee)
Science and Products
Transboundary Aquifer Assessment Program (TAAP)
Many communities along the U.S.-Mexico border have limited surface water supply and rely on transboundary aquifers for industry, agriculture, and drinking water; however, information on water needs, water quality, and the extent and functioning of these aquifers is incomplete. The Transboundary Aquifer Assessment Program (TAAP), established through a binational agreement between the United States...
Assessing the Impacts of Restoration Efforts on Water and Natural Systems in a Changing World
Resource managers must balance the impacts of competing management decisions on multiple, interacting natural systems. Hydrologic and ecological processes, such as groundwater fluctuations and riparian evapotranspiration, can be tightly coupled. Ideally, managers would have tools and models that include all processes to better understand how each management action would propagate through the envir
Data Release for the Binational Study of the Transboundary San Pedro Aquifer, Transboundary Aquifer Assessment Program
This is a data release of data presented in the report "Binational Study of the Transboundary San Pedro Aquifer", Callegary and others, 2016. The United States and Mexico share waters in a number of hydrological basins and aquifers that cross the International Boundary. Both the United States and Mexico recognize that, in a region of scarce water and expanding populations, better scientific
Geophysical Data Collected during the 2014 Minute 319 Pulse Flow
Geophysical methods were used to monitor infiltration during a pulse flow release of water in the Colorado River delta in Mar-May 2014. Electromagnetic-induction methods were used at 14 transects in the limitrophe reach of the River between the U.S. and Mexico, and further south in Mexico. These data are sensitive to variation in soil texture and water content. The repeat direct-current resistivit
Filter Total Items: 26
A shared vision for enhancing ecological resilience in the U.S. - Mexico borderlands: The Sky Island Restoration Collaborative
No abstract available.
Authors
Laura M. Norman, Michele Girard, H. Ron Pulliam, Miguel L. Villarreal, Valer Austin Clark, Aaron D. Flesch, Roy Petrakis, Jeremiah Leibowitz, Deborah Tosline, Kurt Vaughn, Tess Wagner, Caleb Weaver, Trevor Hare, Jose Manuel Perez, Oscar E. Lopez Bujanda, Josiah T. Austin, Carianne Funicelli Campbell, James B. Callegary, Natalie R. Wilson, Jeff Conn, Tom Sisk, Gary L. Nabhan
Preliminary geohydrologic assessment of Buenos Aires National Wildlife Refuge, Altar Valley, southeastern Arizona
The Buenos Aires National Wildlife Refuge is located in the southern part of Altar Valley, southwest of Tucson in southeastern Arizona. The primary water-supply well at the Buenos Aires National Wildlife Refuge has experienced a two-decade decrease in groundwater levels in the well, as have other wells in the southern part of Altar Valley. In part to understand this trend, a study was undertaken b
Authors
Sandra J. Owen-Joyce, James B. Callegary, Amy Elizabeth Rosebrough
Editorial: Combining the science and practice of restoration ecology-Case studies of a grassroots binational restoration collaborative in the Madrean Archipelago Ecoregion (2014- 2019)
The Sky Island Restoration Collaborative (SIRC) is a growing partnership between government agencies, nonprofit organizations, and private landowners in southeast Arizona, the United States, and northern Sonora, Mexico. Starting in 2014 as an experiment to cultivate restoration efforts by connecting people across vocations and nations, SIRC has evolved over 5 years into a flourishing landscape-res
Authors
Laura M. Norman, H. Ronald Pulliam, Michele Girard, Steven M. Buckley, Louise W. Misztal, David Seibert, Carianne Campbell, James B. Callegary, Deborah J. Tosline, Natalie R. Wilson, David Hodges, Jeff Conn, A. Valer Austin-Clark
Preliminary assessment of carbon and nitrogen sequestration potential of wildfire-derived sediments stored by erosion control structures in forest ecosystems, southwest USA
The role of pyrogenic carbon (PyC) in the global carbon cycle is still incompletely characterized. Much work has been done to characterize PyC on landforms and in soils where it originates or in “terminal” reservoirs such as marine sediments. Less is known about intermediate reservoirs such as streams and rivers, and few studies have characterized hillslope and in-stream erosion control structures
Authors
James B. Callegary, Laura M. Norman, Christopher J. Eastoe, Joel B. Sankey, Ann Youberg
Modeling riparian restoration impacts on the hydrologic cycle at the Babacomari Ranch, SE Arizona, USA
This paper describes coupling field experiments with surface and groundwater modeling to investigate rangelands of SE Arizona, USA using erosion-control structures to augment shallow and deep aquifer recharge. We collected field data to describe the physical and hydrological properties before and after gabions (caged riprap) were installed in an ephemeral channel. The modular finite-difference flo
Authors
Laura M. Norman, James B. Callegary, Laurel Lacher, Natalie R. Wilson, Chloé Fandel, Brandon T. Forbes, Tyson Swetnam
Findings and lessons learned from the assessment of the Mexico-United States transboundary San Pedro and Santa Cruz aquifers: The utility of social science in applied hydrologic research
Study RegionThis study region encompasses the Transboundary San Pedro and Santa Cruz aquifers which are shared between the states of Sonora (Mexico) and Arizona (US). Special regional considerations include a semi-arid climate, basin-fill aquifers with predominantly montane recharge areas, economic drivers in the mining, trade, and military sectors, groundwater-dependent cities with expanding cone
Authors
James B. Callegary, Sharon B. Megdal, Elia María Tapia Villaseñor, Jacob D. Petersen-Perlman, Ismael Minjárez Sosa, R. Monreal, F. Gray, Francisco Grijalva Noriega
Geophysical data collected during the 2014 minute 319 pulse flow on the Colorado River below Morelos Dam, United States and Mexico
Geophysical methods were used to monitor infiltration during a water release, referred to as a “pulse flow,” in the Colorado River delta in March and April 2014. The pulse flow was enabled by Minute 319 of the 1944 United States–Mexico Treaty concerning water of the Colorado River. Fieldwork was carried out by the U.S. Geological Survey and the Centro de Investigación Científica y de Educación Sup
Authors
Jeffrey R. Kennedy, James B. Callegary, Jamie P. Macy, Jaime Reyes-Lopez, Marco Pérez-Flores
Hydrological conditions and evaluation of sustainable groundwater use in the Sierra Vista Subwatershed, Upper San Pedro Basin, southeastern Arizona
This study assessed progress toward achieving sustainable groundwater use in the Sierra Vista Subwatershed of the Upper San Pedro Basin, Arizona, through evaluation of 14 indicators of sustainable use. Sustainable use of groundwater in the Sierra Vista Subwatershed requires, at a minimum, a stable rate of groundwater discharge to, and thus base flow in, the San Pedro River. Many of the 14 indicato
Authors
Bruce Gungle, James B. Callegary, Nicholas V. Paretti, Jeffrey R. Kennedy, Christopher J. Eastoe, Dale S. Turner, Jesse E. Dickinson, Lainie R. Levick, Zachary P. Sugg
San Pedro River Aquifer Binational Report
The United States and Mexico share waters in a number of hydrological basins and aquifers that cross the international boundary. Both countries recognize that, in a region of scarce water resources and expanding populations, a greater scientific understanding of these aquifer systems would be beneficial. In light of this, the Mexican and U.S. Principal Engineers of the International Boundary and W
Authors
James B. Callegary, Ismael Minjárez Sosa, Elia María Tapia Villaseñor, Placido dos Santos, Rogelio Monreal Saavedra, Franciso Javier Grijalva Noriega, A. K. Huth, Floyd Gray, C. A. Scott, Sharon Megdal, L. A. Oroz Ramos, Miguel Rangel Medina, James M. Leenhouts
Hydrologic response of streams restored with check dams in the Chiricahua Mountains, Arizona
In this study, hydrological processes are evaluated to determine impacts of stream restoration in the West Turkey Creek, Chiricahua Mountains, southeast Arizona, during a summer-monsoon season (June–October of 2013). A paired-watershed approach was used to analyze the effectiveness of check dams to mitigate high flows and impact long-term maintenance of hydrologic function. One watershed had been
Authors
Laura M. Norman, Fletcher C. Brinkerhoff, Evan Gwilliam, D. Phillip Guertin, James B. Callegary, David C. Goodrich, Pamela L. Nagler, Floyd Gray
Review: groundwater in Alaska (USA)
Groundwater in the US state of Alaska is critical to both humans and ecosystems. Interactions among physiography, ecology, geology, and current and past climate have largely determined the location and properties of aquifers as well as the timing and magnitude of fluxes to, from, and within the groundwater system. The climate ranges from maritime in the southern portion of the state to continental
Authors
J.B. Callegary, C.P. Kikuchi, Joshua C. Koch, M. R. Lilly, S. A. Leake
Challenge theme 2: assuring water availability and quality in the 21st century: Chapter 4 in United States-Mexican Borderlands: Facing tomorrow's challenges through USGS science
Along the United States–Mexican border, the health of communities, economies, and ecosystems is inextricably intertwined with the availability and quality of water, but effective water management in the Borderlands is complicated. Water users compete for resources, and their needs are increasing. Managers are faced with issues such as finding a balance between agriculture and rapidly growing citie
Authors
James Callegary, Jeff Langeman, Jim Leenhouts, Peter Martin
Science and Products
Transboundary Aquifer Assessment Program (TAAP)
Many communities along the U.S.-Mexico border have limited surface water supply and rely on transboundary aquifers for industry, agriculture, and drinking water; however, information on water needs, water quality, and the extent and functioning of these aquifers is incomplete. The Transboundary Aquifer Assessment Program (TAAP), established through a binational agreement between the United States...
Assessing the Impacts of Restoration Efforts on Water and Natural Systems in a Changing World
Resource managers must balance the impacts of competing management decisions on multiple, interacting natural systems. Hydrologic and ecological processes, such as groundwater fluctuations and riparian evapotranspiration, can be tightly coupled. Ideally, managers would have tools and models that include all processes to better understand how each management action would propagate through the envir
Data Release for the Binational Study of the Transboundary San Pedro Aquifer, Transboundary Aquifer Assessment Program
This is a data release of data presented in the report "Binational Study of the Transboundary San Pedro Aquifer", Callegary and others, 2016. The United States and Mexico share waters in a number of hydrological basins and aquifers that cross the International Boundary. Both the United States and Mexico recognize that, in a region of scarce water and expanding populations, better scientific
Geophysical Data Collected during the 2014 Minute 319 Pulse Flow
Geophysical methods were used to monitor infiltration during a pulse flow release of water in the Colorado River delta in Mar-May 2014. Electromagnetic-induction methods were used at 14 transects in the limitrophe reach of the River between the U.S. and Mexico, and further south in Mexico. These data are sensitive to variation in soil texture and water content. The repeat direct-current resistivit
Filter Total Items: 26
A shared vision for enhancing ecological resilience in the U.S. - Mexico borderlands: The Sky Island Restoration Collaborative
No abstract available.
Authors
Laura M. Norman, Michele Girard, H. Ron Pulliam, Miguel L. Villarreal, Valer Austin Clark, Aaron D. Flesch, Roy Petrakis, Jeremiah Leibowitz, Deborah Tosline, Kurt Vaughn, Tess Wagner, Caleb Weaver, Trevor Hare, Jose Manuel Perez, Oscar E. Lopez Bujanda, Josiah T. Austin, Carianne Funicelli Campbell, James B. Callegary, Natalie R. Wilson, Jeff Conn, Tom Sisk, Gary L. Nabhan
Preliminary geohydrologic assessment of Buenos Aires National Wildlife Refuge, Altar Valley, southeastern Arizona
The Buenos Aires National Wildlife Refuge is located in the southern part of Altar Valley, southwest of Tucson in southeastern Arizona. The primary water-supply well at the Buenos Aires National Wildlife Refuge has experienced a two-decade decrease in groundwater levels in the well, as have other wells in the southern part of Altar Valley. In part to understand this trend, a study was undertaken b
Authors
Sandra J. Owen-Joyce, James B. Callegary, Amy Elizabeth Rosebrough
Editorial: Combining the science and practice of restoration ecology-Case studies of a grassroots binational restoration collaborative in the Madrean Archipelago Ecoregion (2014- 2019)
The Sky Island Restoration Collaborative (SIRC) is a growing partnership between government agencies, nonprofit organizations, and private landowners in southeast Arizona, the United States, and northern Sonora, Mexico. Starting in 2014 as an experiment to cultivate restoration efforts by connecting people across vocations and nations, SIRC has evolved over 5 years into a flourishing landscape-res
Authors
Laura M. Norman, H. Ronald Pulliam, Michele Girard, Steven M. Buckley, Louise W. Misztal, David Seibert, Carianne Campbell, James B. Callegary, Deborah J. Tosline, Natalie R. Wilson, David Hodges, Jeff Conn, A. Valer Austin-Clark
Preliminary assessment of carbon and nitrogen sequestration potential of wildfire-derived sediments stored by erosion control structures in forest ecosystems, southwest USA
The role of pyrogenic carbon (PyC) in the global carbon cycle is still incompletely characterized. Much work has been done to characterize PyC on landforms and in soils where it originates or in “terminal” reservoirs such as marine sediments. Less is known about intermediate reservoirs such as streams and rivers, and few studies have characterized hillslope and in-stream erosion control structures
Authors
James B. Callegary, Laura M. Norman, Christopher J. Eastoe, Joel B. Sankey, Ann Youberg
Modeling riparian restoration impacts on the hydrologic cycle at the Babacomari Ranch, SE Arizona, USA
This paper describes coupling field experiments with surface and groundwater modeling to investigate rangelands of SE Arizona, USA using erosion-control structures to augment shallow and deep aquifer recharge. We collected field data to describe the physical and hydrological properties before and after gabions (caged riprap) were installed in an ephemeral channel. The modular finite-difference flo
Authors
Laura M. Norman, James B. Callegary, Laurel Lacher, Natalie R. Wilson, Chloé Fandel, Brandon T. Forbes, Tyson Swetnam
Findings and lessons learned from the assessment of the Mexico-United States transboundary San Pedro and Santa Cruz aquifers: The utility of social science in applied hydrologic research
Study RegionThis study region encompasses the Transboundary San Pedro and Santa Cruz aquifers which are shared between the states of Sonora (Mexico) and Arizona (US). Special regional considerations include a semi-arid climate, basin-fill aquifers with predominantly montane recharge areas, economic drivers in the mining, trade, and military sectors, groundwater-dependent cities with expanding cone
Authors
James B. Callegary, Sharon B. Megdal, Elia María Tapia Villaseñor, Jacob D. Petersen-Perlman, Ismael Minjárez Sosa, R. Monreal, F. Gray, Francisco Grijalva Noriega
Geophysical data collected during the 2014 minute 319 pulse flow on the Colorado River below Morelos Dam, United States and Mexico
Geophysical methods were used to monitor infiltration during a water release, referred to as a “pulse flow,” in the Colorado River delta in March and April 2014. The pulse flow was enabled by Minute 319 of the 1944 United States–Mexico Treaty concerning water of the Colorado River. Fieldwork was carried out by the U.S. Geological Survey and the Centro de Investigación Científica y de Educación Sup
Authors
Jeffrey R. Kennedy, James B. Callegary, Jamie P. Macy, Jaime Reyes-Lopez, Marco Pérez-Flores
Hydrological conditions and evaluation of sustainable groundwater use in the Sierra Vista Subwatershed, Upper San Pedro Basin, southeastern Arizona
This study assessed progress toward achieving sustainable groundwater use in the Sierra Vista Subwatershed of the Upper San Pedro Basin, Arizona, through evaluation of 14 indicators of sustainable use. Sustainable use of groundwater in the Sierra Vista Subwatershed requires, at a minimum, a stable rate of groundwater discharge to, and thus base flow in, the San Pedro River. Many of the 14 indicato
Authors
Bruce Gungle, James B. Callegary, Nicholas V. Paretti, Jeffrey R. Kennedy, Christopher J. Eastoe, Dale S. Turner, Jesse E. Dickinson, Lainie R. Levick, Zachary P. Sugg
San Pedro River Aquifer Binational Report
The United States and Mexico share waters in a number of hydrological basins and aquifers that cross the international boundary. Both countries recognize that, in a region of scarce water resources and expanding populations, a greater scientific understanding of these aquifer systems would be beneficial. In light of this, the Mexican and U.S. Principal Engineers of the International Boundary and W
Authors
James B. Callegary, Ismael Minjárez Sosa, Elia María Tapia Villaseñor, Placido dos Santos, Rogelio Monreal Saavedra, Franciso Javier Grijalva Noriega, A. K. Huth, Floyd Gray, C. A. Scott, Sharon Megdal, L. A. Oroz Ramos, Miguel Rangel Medina, James M. Leenhouts
Hydrologic response of streams restored with check dams in the Chiricahua Mountains, Arizona
In this study, hydrological processes are evaluated to determine impacts of stream restoration in the West Turkey Creek, Chiricahua Mountains, southeast Arizona, during a summer-monsoon season (June–October of 2013). A paired-watershed approach was used to analyze the effectiveness of check dams to mitigate high flows and impact long-term maintenance of hydrologic function. One watershed had been
Authors
Laura M. Norman, Fletcher C. Brinkerhoff, Evan Gwilliam, D. Phillip Guertin, James B. Callegary, David C. Goodrich, Pamela L. Nagler, Floyd Gray
Review: groundwater in Alaska (USA)
Groundwater in the US state of Alaska is critical to both humans and ecosystems. Interactions among physiography, ecology, geology, and current and past climate have largely determined the location and properties of aquifers as well as the timing and magnitude of fluxes to, from, and within the groundwater system. The climate ranges from maritime in the southern portion of the state to continental
Authors
J.B. Callegary, C.P. Kikuchi, Joshua C. Koch, M. R. Lilly, S. A. Leake
Challenge theme 2: assuring water availability and quality in the 21st century: Chapter 4 in United States-Mexican Borderlands: Facing tomorrow's challenges through USGS science
Along the United States–Mexican border, the health of communities, economies, and ecosystems is inextricably intertwined with the availability and quality of water, but effective water management in the Borderlands is complicated. Water users compete for resources, and their needs are increasing. Managers are faced with issues such as finding a balance between agriculture and rapidly growing citie
Authors
James Callegary, Jeff Langeman, Jim Leenhouts, Peter Martin