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James Callegary

James Callegary is a Hydrologist in the Arizona Water Science Center, Tucson Office.

Abstracts and Presentations

  • Fandel, C., Callegary, J., Ferré, T., Norman, L., Scott, C., 2015, Evaluating the effect of gabions on vertical water flux in an ephemeral stream using wildlife cameras and temperature sensors: Annual Conference of the Society of Ecological Restoration – Southwest Chapter, November 20-22, 2015, Tucson, Arizona

  • Callegary, J., Norman, L., Wiele, S., 2015, A multidisciplinary and multi-method approach to assess the Hydrologic and Geomorphologica Effects of Watershed Restoration: Annual Conference of the Society of Ecological Restoration – Southwest Chapter, November 20-22, 2015, Tucson, Arizona

  • Callegary, J., Gray, F., Norman, L., Bultman, M., Heilman, J., 2015, Hydrology and water-budget components of an extensively-mined area using geophysics, geochemistry, rainfall-runoff- and sediment-transport modeling: 2015 NGWA Conference on Groundwater in Fractured Rock, September 28-29, 2015, Burlington, Vermont

  • Page, W.R., Gray, F., Menges, C.M., Berry, M.E., Cosca, M.A., and Callegary, J.B., 2011, Re-evaluating the stratigraphy, structure, and hydrogeology of the Miocene Nogales Formation, Upper Santa Cruz Basin, Southern Arizona and Northern Sonora, Mexico. Geological Society of America Annual Meeting in Minneapolis (9–12 October 2011)

  • Lincicome-Noriega, A.D., Callegary, J.B., and Brusseau, M.L. Analysis of Pollution Potential of the Upper San Pedro and Upper Santa Cruz Aquifers. The University of Arizona Institute of the Environment - Environmental Research Grad Blitz, November 8, 2011.

  • Callegary, James, Paretti, Nicholas, Beisner, Kimberly. Surface-to-groundwater transport of contaminants at Tumacácori National Historical Park. Arizona Hydrological Society September 19-21, 2011, Flagstaff, Arizona.

  • Felipe Caldeira, Laura M. Norman, James Callegary, and Floyd Gray. Nogales , Sonora, Mexico: Is there something in the Water? Santa Cruz River Researcher’s Day March 29, 2011.

  • Rose M. McAndrew, James B. Callegary, Mark L. Brusseau. Groundwater Contaminant Transport Modeling in the Upper Santa Cruz Basin. El Dia del Agua Student Symposium, University of Arizona, March 31, 2011, Tucson, Arizona. (Received $1000 first place Hargis Award for best poster presentation.)

  • Callegary, James, Nick Paretti, Floyd Gray, Laura Norman, Kim Beisner, Katie Eddelman, Logan Matti, Diana Papoulias, Charles van Riper, JR Bell, Rose McAndrew, Alexis Lincicome, Mark Brusseau, Dave Alvarez, Chris Scott, Prescott Vandervoet, and Sharon Megdal. 2011. Linking hydrology, geology, chemistry, and biology in the Upper Santa Cruz River Basin. Santa Cruz River Researcher’s Day, March 29, 2

  • Stewart, Anne M., Hoshin, V. Gupta, Goodrich, David C., Callegary, James C., and Montenegro, Ellen S. 2010. Optimized Numerical Modeling to Estimate Precipitation and Infiltration in Ephemeral Stream Channels, Southeast Arizona. Fall Meeting American Geophysical Union, Dec. 13-17, San Francisco, California.

  • Sharon Megdal, Roberto Sención, Christopher A. Scott, Florencio Díaz, Lucas Oroz, James Callegary, Robert G. Varady. Institutional Assessment of the Transboundary Santa Cruz and San Pedro Aquifers on the United States-Mexico Border: UNESCO-IAH-UNEP Conference, Paris, 6-8 December 2010.

  •  Caldeira,  Felipe,  Norman, Laura M., Callegary, James,  Nubes Ortiz, Gerardina, O’Rourke,  Mary Kay,  de Zapien, Jill, Gray, Floyd and  Rosales, Cecilia, 2010, Water Quality and Health Analysis in Two Different Colonias of Nogales, Sonora, Mexico, [abs.], Arizona Hydrological Society, Sept 1-4, Tucson, Ariz.

  • Nie, Wenming,  Yuan, Yongping, Norman, Laura M., Tallent-Halsell, Nita and Callegary, James, 2010, Assessing climate change impacts on surface water availability in the Upper Santa Cruz Watershed, [abs.], Arizona Hydrological Society, Sept 1-4, Tucson, Ariz.

  • Laura M. Norman, James Callegary, Charles van Riper III, Floyd Gray, Nicholas V. Paretti, and Miguel Villarreal. 2009. The Border Environmental Health Initiative: Investigation of the Transboundary Santa Cruz Watershed. American Geophysical Union, Fall Meeting 2009.

  • Callegary, J., Withers, K., Gray, F., Page, W., Vandervoet, P., McAndrew, R., Caldeira, F., Scott, C., and Megdal, S. 2009. Desarrollo Inicial del Marco Hidrogeológico para el Lado Estadounidense de la Cuenca Alta del Río Santa Cruz. VII National Groundwater Congress of the Mexican Geohydrologic Association.

  • Rose M. McAndrew, James B. Callegary, Mark L. Brusseau, and Floyd Gray. 2009. Contaminant Transport and Predictive Modeling in the Upper Santa Cruz Basin. 2009 Geological Society of America Annual Meeting.

  • Callegary, J.B., Megdal, S.B., Scott, C.A., and Vandervoet, P. 2009. Transboundary Aquifer Assessment Program. National Ground Water Association’s 2009 Ground Water Summit.

  • Laura M. Norman, James Callegary, Floyd Gray, Charles van Riper,  Joseph J. Fontaine, and Anne Gartner. 2009. Border Environmental Health Initiative (BEHI): Investigation of the Transboundary Upper Santa Cruz Basin. National Ground Water Association’s 2009 Ground Water Summit.

  • Norman, Laura M., Burns, I. Shea, Levick, Lainie, and Callegary, James, 2009, Planning Land and Water-Resource Management in the Upper Santa Cruz Watershed, Arizona and Sonora, Mexico [abs.]: The Annual Meeting of the Association of American Geographers (AAG), March 22-27, Las Vegas, NV.

  • Stewart, A. M., Callegary, J. B., Smith, C. F., Wiele, S. M., Cordova, J. T., Fritzinger, R. A., and Gupta, H. V. 2008. Use of the Continuous Slope-Area Method to Estimate Runoff Through Ephemeral Stream Channels in SE Arizona. American Geophysical Union, Fall Meeting 2008.

  • Semmens, D.J., W.G. Kepner, D.C. Goodrich, L.M. Norman, J.B. Callegary, and C. van Riper III, 2008, Applying the Ecosystem Services Concept for Environmental Management in the Upper San Pedro Basin, Arizona [abs.]: ACES, A Conference on Ecosystem Services, December 8-11, Naples, FL.

  • Stewart, A.M., James B. Callegary, James Leenhouts, and Hoshin Gupta.  2007. Modeling Recharge to the Ground-Water System through Ephemeral Stream Channels in and downstream of Sierra Vista, Upper San Pedro River Basin, Arizona, Regional Water Symposium, 20th Annual AHS Symposium, Tucson, Arizona (September, 2007).

  • Kurt Schonauer and James B. Callegary. 2007. Investigations of Rural Watersheds in Southeastern Arizona, Regional Water Symposium, 20th Annual AHS Symposium, Tucson, Arizona (September, 2007).

  • Pool, D.R., James B.Callegary, and R.W. Groom. Aerial Transient Electromagnetic Surveys of Alluvial Aquifers in Rural Watersheds of Arizona, United States, Fall Meeting of the American Geophysical Union, San Francisco, California (December, 2006).

  • Gray, Floyd; Page, William R.; Kleinkopf, Merlin D.; Pool, Donald R.; Callegary, James; Wynn, Jeffrey C.; Maldonado, Florian; and Miller, Robert J., 2005, Geological and geophysical studies of the headwaters of the San Pedro River in northern Sonora, Mexico: Geological Society of America 37, no. 7, pp. 450.

  • Callegary, James B. and Ty P.A. Ferré. “Borehole Geophysics and Surface Electromagnetic Induction Surveys to Describe Ephemeral Channel Recharge in the Sierra Vista Subwatershed of the Upper San Pedro Basin”. Fall Meeting of the American Geophysical Union, San Francisco, California (December, 2001).

Science and Products

link
Hueco Bolson

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...
By
Arizona Water Science Center, New Mexico Water Science Center, Oklahoma-Texas Water Science Center
link

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...
Learn More
link
The Buenos Aires National Wildlife Refuge support native and nonnative grasses, including nonnative African lovegrasses.

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
By
Climate Adaptation Science Centers
link

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
Learn More

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
By
Arizona Water Science Center

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
By
Arizona Water Science Center
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
By
Western Geographic Science Center

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
By
Water Resources Mission Area, Arizona Water Science Center

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
By
Western Geographic Science Center

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
By
Water Resources Mission Area, Ecosystems Mission Area, Arizona Water Science Center, Southwest Biological Science Center, Western Geographic Science Center

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
By
Western Geographic Science Center

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
By
Water Resources Mission Area, Arizona Water Science Center

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
By
Water Resources Mission Area, Arizona Water Science Center

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
By
Water Resources Mission Area, Arizona Water Science Center

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
By
Water Resources Mission Area, Arizona Water Science Center

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
By
Western Geographic Science Center

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
By
Water Resources Mission Area, Arizona Water Science Center

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

link
Hueco Bolson

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...
By
Arizona Water Science Center, New Mexico Water Science Center, Oklahoma-Texas Water Science Center
link

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...
Learn More
link
The Buenos Aires National Wildlife Refuge support native and nonnative grasses, including nonnative African lovegrasses.

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
By
Climate Adaptation Science Centers
link

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
Learn More

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
By
Arizona Water Science Center

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
By
Arizona Water Science Center
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
By
Western Geographic Science Center

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
By
Water Resources Mission Area, Arizona Water Science Center

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
By
Western Geographic Science Center

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
By
Water Resources Mission Area, Ecosystems Mission Area, Arizona Water Science Center, Southwest Biological Science Center, Western Geographic Science Center

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
By
Western Geographic Science Center

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
By
Water Resources Mission Area, Arizona Water Science Center

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
By
Water Resources Mission Area, Arizona Water Science Center

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
By
Water Resources Mission Area, Arizona Water Science Center

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
By
Water Resources Mission Area, Arizona Water Science Center

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
By
Western Geographic Science Center

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
By
Water Resources Mission Area, Arizona Water Science Center

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
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