Roy Sando
Roy Sando is a Supervisory Research Physical Scientist working with the Wyoming-Montana Water Science Center in Helena, Montana. He started working with the USGS in 2011 after getting a Master's degree in Geography at Kansas State University (2011). Prior to that, he completed his Bachelor's degree in both Geography and GIS at South Dakota State University (2008).
Roy's research interests include understanding and modeling the mechanisms of streamflow permanence, using data mining techniques to develop novel predictors of streamflow permanence and other hydrologic phenomena, using remote sensing techniques to estimate consumptive water use from irrigation, and exploring new ways to visualize geospatial data.
Key projects Roy has worked on include:
- PRObability of Streamflow PERmanence (PROSPER)
- Primary Investigator – Develop predictive models to estimate the annual probability that a particular location along streams in the Pacific Northwest will retain year-round streamflow.
- Assessment of water use associated with unconventional oil and gas development
- Task Lead – Worked as part of the modeling team to build and publish a conceptual model for quantifying water use associated with unconventional oil and gas. Additionally, constructed statistical models to predict water use associated with unconventional oil and gas under varying conditions.
- Channel-width regression equations
- Task Lead –Develop statistical equations to predict flood frequencies at ungaged locations using remotely-sensed channel width characteristics.
- National Groundwater Availability Studies spatial data archiving
- Team member – Review spatial datasets associated with groundwater availability studies and prepare them for publication
- Spatial analysis of nutrient inputs to Fish Creek watershed, Wyoming
- Task Lead – Compile and conduct spatial analysis on datasets representing sources of nutrient inputs. Create a grid of nutrient input intensities
- Salish-Kootenai College GIS/remote sensing training
- Primary Investigator – Develop training materials for introductory through advanced GIS courses at the Salish-Kootenai College
- Estimating streamflow at ungaged locations using flood frequency regressions
- Task Lead – Develop regression equations for use in determining streamflow and flood frequency estimates at ungaged locations throughout Montana and surrounding area
- Eastern Montana future fisheries modeling
- Task Lead – Estimate streamflow at ungaged fish sampling sites throughout eastern Montana for current and future climate scenarios
- Williston and Powder River (WaPR) Basin groundwater availability
- GIS specialist for project – Major tasks included a primary role in building and visualizing the 3-dimensional hydrogeologic framework, estimating unit boundaries based on geospatial statistical analyses, and organizing and archiving multiple datasets
- Smith River watershed hydrologic budget
- Task Lead – Use remote sensing techniques to estimate evapotranspiration in the Smith River watershed of central Montana
- Predicting Alpine Headwater Stream Intermittency
- Task Lead – Collect and analyze environmental, geological,
Science and Products
Development of Recommended Practices and Workflow for Publishing Digital Data through ScienceBase for Dynamic Visualization
Identifying Resilient Headwater Streams to Mitigate Impacts of Future Drought in the Northwest
Channel width measurements for selected streamgage sites in Montana Channel width measurements for selected streamgage sites in Montana
Data to Estimate Water Use Associated with Continuous Oil and Gas Development, Williston Basin, United States, 1980-2017 (ver. 3.0, October 2022) Data to Estimate Water Use Associated with Continuous Oil and Gas Development, Williston Basin, United States, 1980-2017 (ver. 3.0, October 2022)
RockType to Permeability Crosswalk Table, Northwest U.S. RockType to Permeability Crosswalk Table, Northwest U.S.
Probability of Streamflow Permanence (PROSPER) Continuous Parameter Grids (CPGs) Probability of Streamflow Permanence (PROSPER) Continuous Parameter Grids (CPGs)
Probability of Streamflow Permanence (PROSPER) Model Output Layers Probability of Streamflow Permanence (PROSPER) Model Output Layers
Streamflow Observation Points in the Pacific Northwest, 1977-2016 Streamflow Observation Points in the Pacific Northwest, 1977-2016
Beyond streamflow: Call for a national data repository of streamflow presence for streams and rivers in the United States Beyond streamflow: Call for a national data repository of streamflow presence for streams and rivers in the United States
The influence of climate variability on the accuracy of NHD perennial and non-perennial stream classifications The influence of climate variability on the accuracy of NHD perennial and non-perennial stream classifications
A guidebook to spatial datasets for conservation planning under climate change in the Pacific Northwest A guidebook to spatial datasets for conservation planning under climate change in the Pacific Northwest
Regional patterns in hydrologic response, a new three-component metric for hydrograph analysis and implications for ecohydrology, Northwest Volcanic Aquifer Study Area, USA Regional patterns in hydrologic response, a new three-component metric for hydrograph analysis and implications for ecohydrology, Northwest Volcanic Aquifer Study Area, USA
Probability of streamflow permanence model (PROSPER): A spatially continuous model of annual streamflow permanence throughout the Pacific Northwest Probability of streamflow permanence model (PROSPER): A spatially continuous model of annual streamflow permanence throughout the Pacific Northwest
Streamflow contributions from tribal lands to major river basins of the United States Streamflow contributions from tribal lands to major river basins of the United States
Non-USGS Publications**
**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.
Science and Products
Development of Recommended Practices and Workflow for Publishing Digital Data through ScienceBase for Dynamic Visualization
Identifying Resilient Headwater Streams to Mitigate Impacts of Future Drought in the Northwest
Channel width measurements for selected streamgage sites in Montana Channel width measurements for selected streamgage sites in Montana
Data to Estimate Water Use Associated with Continuous Oil and Gas Development, Williston Basin, United States, 1980-2017 (ver. 3.0, October 2022) Data to Estimate Water Use Associated with Continuous Oil and Gas Development, Williston Basin, United States, 1980-2017 (ver. 3.0, October 2022)
RockType to Permeability Crosswalk Table, Northwest U.S. RockType to Permeability Crosswalk Table, Northwest U.S.
Probability of Streamflow Permanence (PROSPER) Continuous Parameter Grids (CPGs) Probability of Streamflow Permanence (PROSPER) Continuous Parameter Grids (CPGs)
Probability of Streamflow Permanence (PROSPER) Model Output Layers Probability of Streamflow Permanence (PROSPER) Model Output Layers
Streamflow Observation Points in the Pacific Northwest, 1977-2016 Streamflow Observation Points in the Pacific Northwest, 1977-2016
Beyond streamflow: Call for a national data repository of streamflow presence for streams and rivers in the United States Beyond streamflow: Call for a national data repository of streamflow presence for streams and rivers in the United States
The influence of climate variability on the accuracy of NHD perennial and non-perennial stream classifications The influence of climate variability on the accuracy of NHD perennial and non-perennial stream classifications
A guidebook to spatial datasets for conservation planning under climate change in the Pacific Northwest A guidebook to spatial datasets for conservation planning under climate change in the Pacific Northwest
Regional patterns in hydrologic response, a new three-component metric for hydrograph analysis and implications for ecohydrology, Northwest Volcanic Aquifer Study Area, USA Regional patterns in hydrologic response, a new three-component metric for hydrograph analysis and implications for ecohydrology, Northwest Volcanic Aquifer Study Area, USA
Probability of streamflow permanence model (PROSPER): A spatially continuous model of annual streamflow permanence throughout the Pacific Northwest Probability of streamflow permanence model (PROSPER): A spatially continuous model of annual streamflow permanence throughout the Pacific Northwest
Streamflow contributions from tribal lands to major river basins of the United States Streamflow contributions from tribal lands to major river basins of the United States
Non-USGS Publications**
**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.