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May 2022 e-Newsletter

Letter from the Executive Director 


Dear Friends of Water Science,

We were saddened to hear of the passing of Professor Vijay Gupta in March. Many of Professor Gupta’s insights and his support led to the formation of CUAHSI. I am turning this space, with gratitude, over to Ed Waymire, Oregon State University, for his remembrance of Dr. Gupta. 

Take care, Jerad

Remembering My Friend and Longtime Collaborator Vijay Gupta

My friend and scientific collaborator, Professor Vijay Gupta, passed away peacefully on March 18, 2022, at his home in Boulder, CO., that he shared with his loving wife Indira.

A 2008 Robert E. Horton Medalist, Vijay Gupta came to the USA from India in 1968 to join the vibrant hydrology program at Colorado State University as a graduate student. Many scientifically rewarding peer connections, in what had been dubbed "stochastic hydrology’’, were made while at CSU. In 1971 Vijay was attracted to the University of Arizona hydrology program, where he received a PhD in 1973 under the direction of Chester Kisiel.

Both my mathematical/scientific life and my personal life were greatly enriched by our career long friendship and collaboration as we attempted to understand certain hydrologic phenomena from a theoretical perspective. These are my personal reflections on a scientific life well-lived.

Our collaboration began in the summer of 1977 over discussions of the hierarchical structure of space-time rainfall. For me it was a curiosity driven question, but Vijay quickly presented to me a graphical depiction of the hydrologic cycle with his view that: This is just where we start! He set us on a path, aided by students, postdocs, contributions of numerous hydrologic scientists and colleagues from around the world, that would eventually be a genesis of a framework for the prediction from ungauged river basins (PUB) based on scaling patterns embedded in rainfall and geomorphologic data. The driving surface water question had crystalized over time: How can one predict flows from rainfall patterns and geomorphology revealed in satellite imagery and maps?

Vijay’s scientific passion extended to framing and understanding groundwater dispersion of solutes, as well. This led him, in collaboration with another mathematician friend and colleague, Rabi Bhattacharya, to frame the observed growth in dispersion of solutes with spatial scale as the result of a hierarchy of scaling (central) limit theorems. Some of the mathematical theory and examples that emerged from these investigations will appear in a forthcoming book dedicated to Vijay’s memory and our work with him.

Vijay understood the role and importance of well-funded scientific organizations and conferences in support of basic science and engineering. He was equally as passionate about the development and support of a scientific infrastructure to advance a theoretical framework, rooted in field and laboratory experiments, for all aspects of hydrologic science, as he was about the science itself. His efforts contributed to the `Water, Earth, Biota (WEB)’’ report in ways that eventually led to the Consortium of Universities for the Advancement of Hydrologic Sciences, Inc. (CUAHSI). Beyond this, Vijay long sought a united hydrology and atmospheric science infrastructure to support research. My pet challenge for Vijay was to convince the National Center for Atmospheric Research to insert a `silent H’ into the 'NCAR’ acronym! He always loved a challenge, but that one remains unfulfilled.

In recent years, my conversations with Vijay would regularly involve another of his lifelong passions: That of integrating metaphysical and physical sciences into a common theoretical framework. He excitedly pointed to current research in physics as his evidence of a possible framework in which to incorporate a notion of `consciousness’ – with the same can-do spirit with which he introduced me to
rainfall research nearly fifty years ago.

Vijay introduced himself to me as `a man of water’, however he was a man of many passions: he loved life, he loved his work, his friends, his students, long walks and healthy food, and his dear wife and lifetime companion and confidant of some fifty years, Indira. He will be missed by many friends and colleagues around the world for his challenging questions and deep insights into the world of water, and beyond.

Edward C Waymire
April 29, 2022


Voices From The Community 

Assistant Professor of Engineering, Wake Forest University

I attended the CUAHSI Biennial Colloquium for the first time in 2018. I had defended my PhD in Civil and Environmental Engineering at Duke University a month or so earlier and had just moved to Winston-Salem, NC. On the first night of the conference, all of the attendees gathered around a grand fireplace at the lodge where the conference was held and Linda Lilienfeld spoke to us about using film to engage students and communicate big problems in hydrology. She was promoting the Let’s Talk about Water (LTAW) Challenge Grant and my interest was instantly piqued. In my first semester as an assistant professor at Wake Forest University, the first grant that I wrote and subsequently won was the LTAW Challenge Grant.

The LTAW Challenge Grant was the best possible way to jump start my time in Winston-Salem. Writing the grant and hosting the event gave me the opportunity to meet a number of people in the community and at my university that I would not have otherwise met. I immediately connected with my university’s Office of Sustainability where the staff helped identify people who would want to be involved in this type of outreach event. I quickly learned about the unique history of Winston-Salem, in which hydrology played an intricate role, from long-time residents and local historians. Early Moravian settlers specifically chose the plot of land where the city resides for its abundance of springs and fresh water. As the city industrialized, many of these waterways were rerouted or concreted over, completely changing the landscape. To connect with this history, we showed the film Lost Rivers (2012) at a non-profit theater in Downtown Winston-Salem. Local businesses, municipal government and non-profits were able to use the event as a platform for outreach before we hosted the movie screening and expert panel. Hosting an LTAW event quickly helped me feel at home in my new city, as I built relationships with event collaborators and attendees who were also my neighbors.

The LTAW event led me to use my research to explore how manmade changes to stream networks in Winston-Salem have altered the urban flood response over time. Last semester, I had the opportunity to link my research with teaching through a community-engaged elective course sponsored by a Mellon Grant where students explored the coupled hydrological and ethical issues in our city. The class visited an elementary school in the city that is located in a flood plain and regularly floods during large rain events. We met with teachers and school district administrators to learn about environmental and human challenges around rebuilding the school on the same site versus moving the school to a different site. The same school reached out earlier this year for help with writing a grant application to become a NOAA Ocean Guardian School. They wanted to design a project for their elementary students that focused on improving the stream that goes through the school grounds and provided a hands-on design experience for their young students. I brought in a landscape architect who served as a panelist at the LTAW event and together we helped scope projects that focused on preventing streambank erosion. We recently learned that the school won the award and I am looking forward to bringing the project to life over the next couple of years. It is amazing to reflect on how many opportunities for research, teaching, and community engagement have arisen from one event.
General Announcements

CUAHSI has developed a Research Data Management Guide to provide a framework for structuring data collection and management plans, as well as a guide to data products, for use by the community. The sample plan and guide are available here. Community members are free to use this guidance as it suits their needs. 

CUAHSI's Community Support Hydrologist, Clara Cogswell, and Scientific Software Architect, Austin Raney, created an original 3 minute video that is now being streamed on the 2022 STEM for All Video Showcase, called, CUAHSI & the Data Lifecycle: Cyberinfrastructure for Water. This is an interactive, event, showcasing federally funded projects aimed at improving STEM and computer science education. Videos focus on strategies to broaden participation, increase access, and equity. You can view the videos, post to the discussions, and vote for your favorites! Voting and discussions end on May 17th at 8 PM EDT.

CUAHSI is pleased to announce that we have awarded 22 fellows for the National Water Center Innovators Program Summer Institute (SI). The awardees, M.S. and PhD students from a wide range of U.S. universities, will work together to advance the mission of the National Water Center. Congratulations to all!

2022 Summer Institute Course Coordinators: 
  • Arash Modaresi Rad, Boise State University
  • Emily Deardorff, San Diego State University

2022 Summer Institute Fellows:
  • Abigail (Abbie) Sandquist, University of Nevada, Reno
  • Alexander (Hart) Henrichsen, Brigham Young University
  • Ankit Ghanghas, Purdue University
  • Fitsume Teshome Wolkeba, University of Alabama
  • Francisco Haces Garcia, University of Houston
  • Hongyuan Zhang, Coastal Carolina University
  • Kenneth Ekpetere, University of Kansas
  • Krutikkumar (Krutik) Patel, Texas A&M University - Kingsville
  • Laura Manuel, Tulane University
  • Lauren Bolotin, San Diego State University
  • Mark Wang, University of Texas at Austin
  • Md Abdullah Al Mehedi, Villanova University
  • Mochi Liao, Duke University
  • Mohamed Abdelkader, Stevens Institute of Technology
  • Motasem Abualqumboz, Utah State University
  • Qiyue (Sophie) Liu, University of Illinois Urbana-Champaign
  • Ebrahim Hamidi, University of Alabama
  • Seyed Mohammad Hassan Erfani, University of South Carolina
  • Shah Saki, University of Connecticut
  • Shuyu Chang, Pennsylvania State University
  • Zachariah (Zach) Butler, Oregon State University
  • Zahra Ghahremani, Boise State University

Whats new in RHESSys (Regional Hydro-Ecological Simulation System)

By: Naomi Tague, Professor at the Bren School of Environmental Science and Management at the University of California, Santa Barbara
RHESSys is a hydro-ecologic model that has been used in a wide range of modeling applications including estimates of climate change impacts on snow (e.g. Son & Tague, 2018), vegetation growth (e.g. Vicente-Serrano et al., 2015), evapotranspiration (e.g. Tague & Peng, 2013), mortality (e.g. Tague et al., 2013), streamflow (e.g. Boisrame et al., 2019), urban development (e.g. Bell et al., 2019), vegetation type conversion (e.g. Bart et al., 2016), and land management (e.g. Khorchani et al., 2022).

To learn more, read the full report here.



The use of machine learning techniques in hydrologic science is rapidly growing. For example, a recent paper by Kratzert et al., 2019, has been downloaded more than 130,000 times and cited 97 times (CrossRef). The authors archived in HydroShare all the rainfall-runoff models used to create this publication, which includes 48 runs from 3 different models (trained with 8 repetitions) and two different loss functions. Also included in the resource is a pointer to the code used to create results in the paper. This HydroShare resource has been downloaded more than 13,600 times, making the resource one of the more frequently downloaded items in HydroShare, and demonstrating the value to the community of resources made available openly discoverable and accessible.

In these releases we added new functionality, addressed several bugs and applied system reliability improvements.

New Functionality
  • Private Link Sharing: This capability is to enable resources still private to be shared with journal paper reviewers while a paper citing the resource is under review. Users can generate a private link to a private or discoverable resource that can be shared with collaborators. The button to generate this link will be available in edit mode on the resource, in the sharing and access panel.
Bug Fixes
  • Fixed unclear messaging when updating “Date Range” for a resource 
  • Fixed a regression when managing access for groups
  • Fixed inconsistent contribution count in the user profile 
  • Fixed a bug related to moving files or aggregation in the content browser leaving the resource in an inaccessible state
  • Fixed unclear messaging when zipping a folder containing an aggregation
  • Fixed a bug to prevent that deleting a folder with the same name also deletes the aggregation
  • Several minor improvements to the groups functionality
  • Fixed  bug editing the Homepage url for the web App connector 
For more detail on this and previous releases, please check here.

Upcoming Events & Deadlines


CUAHSI's Community Outreach Specialist, Lisa Mucciacito, and Education Program Manager, Veronica Sosa-Gonzalez, will join Let's Talk About Water (LTAW) grant founder, Linda Lilienfeld, for part of the New York African Film Festival. During the session, African Voices in Changing Climates: Post-Production and Social Impact Cinema, several short films will be screened followed by a discussion  on promoting wider engagement and participation in water policy and water science communication through short-film production amongst mayors, youths, and filmmakers in cities across the African continent. The films that will be screened are part of Mayors Make Movies, an initiative that evolved from the LTAW program.

The in-person event is taking place on May 14th at Lincoln Center in New York. Tickets can be purchased here.


Last chance for early bird registration and housing rates, expiring on 17 May!

The Frontiers in Hydrology Meeting (FIHM22) is taking place 19-24 June in San Juan, Puerto Rico and online everywhere.  Financial support is also available, applications for student and early-career attendees at FIHM22, via student travel grants, early-career travel grants, and the Berkner Travel Fellowship, which must be received by  16 May at 11:59 pm ET. Applications for caregiver grants must be received by 31 May at 11:59 pm ET.

Book your housing now for in-person attendance.  Conference hotels will only guarantee rates until 17 May. 

In addition to the robust scientific program featuring plenaries, town halls and scientific workshops, FIHM22 will also host several field trips that explore Puerto Rico’s diverse ecological areas and city life.

We look forward to seeing you at FIHM22!
Copyright © 2022 Consortium of Universities for the Advancement of Hydrologic Science, Inc. (CUAHSI), All rights reserved.

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