Elizabeth Jachens
Elizabeth Jachens is a hydrologist with the U.S. Geological Survey in the California Water Science Center in the Groundwater Availability and Use Assessments project.
Elizabeth graduated with her Ph.D. in Water Resources Engineering from Oregon State University in March of 2020. Her research focused on the use of recession analysis to characterize watershed responses to drought. She earned an M.S. in Water Resources Engineering and a Graduate Certificate in Water Conflict Management and Transformation, both from Oregon State University in 2019. Elizabeth graduated with a B.S. in Civil Engineering with a minor in math from California State University, Chico in 2015.
Science and Products
Filter Total Items: 18
Salinas Valley Operational Model: Input Operational Data (ver. 2.0, September 2023) Salinas Valley Operational Model: Input Operational Data (ver. 2.0, September 2023)
This digital dataset contains the surface water operational data used for the Salinas Valley Operational Model (SVOM) including the timeseries data and the operational rules. While much of the input data is shared between the Salinas Valley Operational Model (SVOM) and the Salinas Valley Integrated Hydrologic Model (SVIHM), the SVOM has additional input data specific to the purpose and...
Los Angeles Basin Watershed Model (LABWM) using INFIL4.0 Los Angeles Basin Watershed Model (LABWM) using INFIL4.0
This data release documents the datasets and procedures used to update the Los Angeles Basin Watershed Model (LABWM) (Hevesi and Johnson, 2016) from INFIL3.0 (USGS, 2008a, 2008b) to INFIL4.0. The LABWM provides gridded monthly infiltration, evaporation, recharge, and runoff estimates for the Los Angeles region using the water balance recharge model, INFIL. INFIL is a grid-based...
Salinas Valley Hydrologic System: Regional Climate Data (ver 2.0, February 2025) Salinas Valley Hydrologic System: Regional Climate Data (ver 2.0, February 2025)
This digital dataset contains the climate data used for the Salinas Valley Hydrologic System, including the Salinas Valley Watershed Model (SVWM) and the Lower Salinas Valley Hydrologic Models (Salinas Valley Integrated Hydrologic Model (SVIHM) and Salinas Valley Operational Model (SVOM)). The climate data include spatially distributed daily precipitation, maximum and minimum air...
Salinas Valley Hydrologic Models: Surface Water Data (ver. 1.1, September 2024) Salinas Valley Hydrologic Models: Surface Water Data (ver. 1.1, September 2024)
This digital dataset contains the surface water data used for both the Salinas Valley Watershed Model (SVWM) and the Lower Salinas Valley Hydrologic Models (Salinas Valley Integrated Hydrologic Model (SVIHM) and Salinas Valley Operational Model (SVOM)). The surface water dataset includes describes two regions of the Salinas River Watershed; the upper region is occurs primarily within San...
Lower Salinas Valley Hydrologic Models: Discretization Data (ver. 1.2, August 2024) Lower Salinas Valley Hydrologic Models: Discretization Data (ver. 1.2, August 2024)
The Lower Salinas Valley Hydrologic Models’ discretization data includes a shapefile of the model domain and layers and a shapefile of the water balance subregions. The Lower Salinas Valley Hydrologic Models (LSVHM) include a historical model, the Salinas Valley Integrated Hydrologic Model (SVIHM) and a reservoir operations model, the Salinas Valley Operational Model (SVOM). While the...
Central Valley Hydrologic Model version 2 (CVHM2): Water Banking for water years 1961-2019 (ver. 2.0, Aug 2023) Central Valley Hydrologic Model version 2 (CVHM2): Water Banking for water years 1961-2019 (ver. 2.0, Aug 2023)
Managed aquifer recharge is a water-management strategy used to meet water demands during dry periods, or periods of high-water demand, when surface-water supplies are low. One method of managed aquifer recharge uses aquifer systems as subsurface reservoirs or ‘water banks’ to effectively and economically store surface water when surplus is available, and then recover the recharged...
Science and Products
Filter Total Items: 18
Salinas Valley Operational Model: Input Operational Data (ver. 2.0, September 2023) Salinas Valley Operational Model: Input Operational Data (ver. 2.0, September 2023)
This digital dataset contains the surface water operational data used for the Salinas Valley Operational Model (SVOM) including the timeseries data and the operational rules. While much of the input data is shared between the Salinas Valley Operational Model (SVOM) and the Salinas Valley Integrated Hydrologic Model (SVIHM), the SVOM has additional input data specific to the purpose and...
Los Angeles Basin Watershed Model (LABWM) using INFIL4.0 Los Angeles Basin Watershed Model (LABWM) using INFIL4.0
This data release documents the datasets and procedures used to update the Los Angeles Basin Watershed Model (LABWM) (Hevesi and Johnson, 2016) from INFIL3.0 (USGS, 2008a, 2008b) to INFIL4.0. The LABWM provides gridded monthly infiltration, evaporation, recharge, and runoff estimates for the Los Angeles region using the water balance recharge model, INFIL. INFIL is a grid-based...
Salinas Valley Hydrologic System: Regional Climate Data (ver 2.0, February 2025) Salinas Valley Hydrologic System: Regional Climate Data (ver 2.0, February 2025)
This digital dataset contains the climate data used for the Salinas Valley Hydrologic System, including the Salinas Valley Watershed Model (SVWM) and the Lower Salinas Valley Hydrologic Models (Salinas Valley Integrated Hydrologic Model (SVIHM) and Salinas Valley Operational Model (SVOM)). The climate data include spatially distributed daily precipitation, maximum and minimum air...
Salinas Valley Hydrologic Models: Surface Water Data (ver. 1.1, September 2024) Salinas Valley Hydrologic Models: Surface Water Data (ver. 1.1, September 2024)
This digital dataset contains the surface water data used for both the Salinas Valley Watershed Model (SVWM) and the Lower Salinas Valley Hydrologic Models (Salinas Valley Integrated Hydrologic Model (SVIHM) and Salinas Valley Operational Model (SVOM)). The surface water dataset includes describes two regions of the Salinas River Watershed; the upper region is occurs primarily within San...
Lower Salinas Valley Hydrologic Models: Discretization Data (ver. 1.2, August 2024) Lower Salinas Valley Hydrologic Models: Discretization Data (ver. 1.2, August 2024)
The Lower Salinas Valley Hydrologic Models’ discretization data includes a shapefile of the model domain and layers and a shapefile of the water balance subregions. The Lower Salinas Valley Hydrologic Models (LSVHM) include a historical model, the Salinas Valley Integrated Hydrologic Model (SVIHM) and a reservoir operations model, the Salinas Valley Operational Model (SVOM). While the...
Central Valley Hydrologic Model version 2 (CVHM2): Water Banking for water years 1961-2019 (ver. 2.0, Aug 2023) Central Valley Hydrologic Model version 2 (CVHM2): Water Banking for water years 1961-2019 (ver. 2.0, Aug 2023)
Managed aquifer recharge is a water-management strategy used to meet water demands during dry periods, or periods of high-water demand, when surface-water supplies are low. One method of managed aquifer recharge uses aquifer systems as subsurface reservoirs or ‘water banks’ to effectively and economically store surface water when surplus is available, and then recover the recharged...