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Ave Arellano

Avelino F. Arellano

Professor, Hydrology and Atmospheric Sciences
Joint Associate Professor, GIDP Remote Sensing and Spatial Analysis, GIDP Applied Mathematics
Joint Associate Professor, Chemical and Environmental Engineering
afarellano@arizona.edu
Pronouns:
he, him, his
Victor Baker

Victor R. Baker

Regents' Professor, Hydrology and Atmospheric Sciences
Joint Professor, Geosciences
Joint Professor, Planetary Sciences
Joint Professor, Global Change GIDP, Remote Sensing and Spatial Analysis GIDP
baker@arizona.edu
Pronouns:
he, him, his
Hale Barter

Hale Barter

HAS Advisory Board Chair
HAS Advisory Board Service 2020-Current
President and Groundwater Hydrologist, Montgomery & Associates
Ali Behrangi

Ali Behrangi

University Distinguished Scholar and Professor, Hydrology and Atmospheric Science
Joint Professor, Civil Engineering-Engineering Mechanics
Joint Professor, Geosciences
Joint Proessor, Remote Sensing and Spatial Analysis GIDP
behrangi@arizona.edu
Eric A. Betterton

Eric A. Betterton

University Distinguished Professor Emeritus, Hydrology and Atmospheric Sciences
Joint Professor Emeritus, Chemical and Environmental Engineering
Joint Professor Emeritus, College of Public Health
Joint Professor Emeritus, Chemical and Environmental Engineering
Director Emeritus, Institute of Atmospheric Physics
better@arizona.edu
Karletta Chief Joint Professor

Karletta Chief

Joint Professor, Hydrology and Atmospheric Sciences
Full Professor and Extension Specialist, Environmental Science (home department)
University Distinguished Professor, Outreach
Director, Arizona Institute of Resilience, Haury Indigenous Resilience Center (IRC)
Chair, Indigenous Food/Energy/Water Systems - Graduate Interdisciplinary Degree Program (GIDP)
Professor, American Indian Studies - GIDP
Professor, Arid Lands Resources Sciences - GIDP
Associate Professor, Environmental Physics
Associate Professor, Public Health
520-626-5598
kchief@arizona.edu
Pronouns:
she, her, hers
Xiquan Dong

Xiquan Dong

Professor, Hydrology and Atmospheric Sciences
Director, Graduate Studies-Atmospheric Sciences
Joint Professor, Remote Sensing and Spatial Analysis GIDP
xdong@arizona.edu
Jeremy Dowling

Jeremy Dowling

HAS Advisory Board Member
HAS Advisory Board Service 2021-Current
Piteau Associates, President and Chief Hydrogeologist
Charlie Ester III

Charlie Ester III

HAS Advisory Board Member
HAS Advisory Board Service 2016-Current
Salt River Project, Manager of Surface Water Resources Operation
Phillip Fitzwater

Phillip Fitzwater

HAS Advisory Board Member Emeritus
HAS Advisory Board Service 2021-2024
Retired Senior Consultant and President of Iris Environmental
Karl Gast

Karl Gast

HAS Advisory Board Member
HAS Advisory Board Service 2015-Current
Engineer, Raytheon
HAS Regents Professor Hoshin Gupta

Hoshin V. Gupta

Regents' Professor, Hydrology and Atmopsheric Sciences
SRP Professor, Technology-Public Policy/Markets
Joint Professor, Global Change GIDP
Joint Professor, Remote Sensing and Spatial Analysis GIDP
hoshin@arizona.edu
Neha Gupta Joint Assistant Research Professor

Neha Gupta

Joint Assistant Research Professor, Hydrology and Atmospheric Sciences
Program Coordinator, University Climate Change Coalition
Arizona Institute of Resilience (home department)
520-626-4345
nehagupta@arizona.edu
Caitlyn Hall Joint Assistant Professor of Practice

Caitlyn Hall

Joint Assistant Professor of Practice, Hydrology and Atmospheric Sciences
Assistant Professor of Practice & Director of Minor Study in Future Earth Resilience, W.A. Franke Honors College (home department)
Assistant Professor of Practice, Biosystems Engineering
Founder, Arizona Science Policy Network
520-621-9457
cahall@arizona.edu
Pronouns:
she, her, hers
Katherine Jacobs Joint Professor HAS

Katherine L. Jacobs

Joint Professor, Hydrology and Atmospheric Sciences
Director, Center for Climate Adaptation Science and Solutions (CCASS)
Professor, Environmental Science (home department)
Affiliate Professor, Institute of the Environment
520-626-0684
jacobsk@arizona.edu
Jennifer McIntosh

Jennifer C. McIntosh

Thomas Meixner Endowed Chair, Hydrology and Atmospheric Sciences
University Distinguished Scholar, Professor and Associate Head, Hydrology and Atmospheric Sciences
Joint Professor, Geosciences
jenmc@arizona.edu
Pronouns:
she, her, hers
Laura Meredith Joint Assistant Professor HAS

Laura Meredith

Joint Assistant Professor, Hydrology and Atmospheric Sciences
Director, Biopshere 2 Tropical Rain Forest
Assistant Professor, Ecosystem Genomics, School of Natural Resources and the Environment (home department)
Joint Assistant Professor, Biosphere 2 Institute
Joint Assistant Professor, Genetics (GIDP)
Joint Assistant Professr, Global Change (GIDP)
520-626-4213
laurameredith@arizona.edu
Peter Mock

Peter Mock

HAS Advisory Board Member Emeritus
Has Advisory Board Service 2015-2024
Peter Mock Groundwater Consulting, Inc., Principal Scientist, Hydrologist and Environmental Scientist
Steven Mullen

Steven Mullen

DECEASED September 1, 2025
Professor, Hydrology and Atmospheric Sciences
Peter Quinlan

Peter Quinlan

HAS Advisory Board Emeritus and Former Chair
HAS Advisory Board Chair 2019-2024
HAS Advisory Board Member Service 2015-2024
Dudek, Inc., Retired Vice president
Marty Ralph

Marty Ralph

HAS Advisory Board Member
HAS Advisory Board Service 2015-Current
Center for Western Weather and Water Extremes, Scripps Institution of Oceanography, University of California at San Diego, Director
Joellen L. Russell, Joint University Distinguished Professor, HAS

Joellen L. Russell

Joint University Distinguished Professor, Hydrology and Atmospheric Sciences
Department Head and Distinguished Professor, Geosciences (home department)
Joint Distinguished Professor, Lunar and Planetary Laboratory and Planetary Sciences
Joint Distinguished Professor, Applied Mathematics - GIDP
Joint Distinugished Professor, Global Change - GIDP
520-626-2194
jrussell@arizona.edu
Suzanne Shields

Suzanne Shields

HAS Advisory Board Member
HAS Advisory Board Service 2020-Current
Pima County Regional Flood Control District, Director Emerita
Amber Sullins

Amber Sullins

HAS Advisory Board Vice Chair
HAS Advisory Board Vice Chair 2019-Current
HAS Advisory Board Member Service 2015-2019
Chief Meteorologist at ABC15 in Phoenix
Elizabeth Tellman, Joint Assistant Professor, HAS

Elizabeth Tellman

Joint Assistant Professor, Hydrology and Atmospheric Sciences
Assistant Professor, Nelson Institute of Environmental Studies, University of Wisconsin- Madison (home department)
beth.tellman@wisc.edu
Photo of Peter Troch

Peter A. Troch

Professor and Department Head, Hydrology and Atmospheric Sciences
Agnese Nelms Haury Endowed Chair in Environment
Joint Professor, Civil Engineering-Engineering Mechanics
Science Director, Biopshere 2
patroch@arizona.edu
David Young

David F. Young

HAS Advisory Board Member
HAS Advisory Board Service 2016-Current
Deputy Director, NASA Langley Research Center
Xubin Zeng 2025

Xubin Zeng

Professor, Hydrology and Atmospheric Sciences
Agnese Nelms Haury Endowed Chair in Environment
Director, Climate Dynamics and Hydrometeorology Center (CDHC)
Joint Professor, Global Change GIDP
Joint Professor, Remote Sensing and Spatial Analysis GIDP
xubin@arizona.edu