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MODFLOW-OWHM Used to Characterize the Groundwater Flow System of the Central Valley MODFLOW-OWHM Used to Characterize the Groundwater Flow System of the Central Valley
A three-dimensional groundwater flow model of the Central Valley in California was developed to aid water managers in understanding how water moves through the aquifer system, to predict water-supply scenarios, and to address issues related to subsidence. The USGS California Water Science Center made a detailed assessment of groundwater availability of the Central Valley aquifer system...
MODFLOW–6 model of the Shell Valley aquifer, Belcourt, North Dakota, 1980-2022 MODFLOW–6 model of the Shell Valley aquifer, Belcourt, North Dakota, 1980-2022
A MODFLOW-6 groundwater flow model of the Shell Valley aquifer near the Turtle Mountain Band of the Chippewa Indians land area representation in northern North Dakota was constructed to improve the understanding and management of the water-supply resources. The model area included sub-watersheds containing the extent of the Shell Valley aquifer approximately between the towns of St. John...
MODIS Fire Radiative Power data compiled from active fires in Alaska, 2003-2022 MODIS Fire Radiative Power data compiled from active fires in Alaska, 2003-2022
This data release supports the publication: "Linking Fire Radiative Power to land cover, fire history, and environmental setting in Alaska, 2003 - 2022". The *.csv file contains data associated with fire radiative power (FRP) observations derived from 1-km MODIS data over Alaska from 2003 to 2022. The file allows users to replicate the statistical analysis of FRP values with vegetation...
MODPATH model to simulate backward particle tracking in groundwater near Puget Sound, Pierce County, Washington MODPATH model to simulate backward particle tracking in groundwater near Puget Sound, Pierce County, Washington
Backward particle tracking in groundwater was simulated with MODPATH and the MODFLOW groundwater flow model by Long and others (2024). Simulated particles were tracked backward from well intakes in areas within or near Joint Base Lewis-McChord (JBLM) for the purpose of determining their likely points of origin within groundwater recharge areas. Steady-state and transient simulations were...
MODPATH6 datasets using MODFLOW and SEAWAT input for development of groundwater contributing areas for estimating low-flow statistics for the Plymouth-Carver aquifer area and Cape Cod, Massachusetts MODPATH6 datasets using MODFLOW and SEAWAT input for development of groundwater contributing areas for estimating low-flow statistics for the Plymouth-Carver aquifer area and Cape Cod, Massachusetts
Existing simulated groundwater head and water-budget output files from MODFLOW models for the Plymouth-Carver region (Masterson and others, 2009), the Hyannis Ponds Cape model (LeBlanc and others, 2019), and a SEAWAT model of lower Cape Cod (Masterson, 2004) were used in a new MODPATH version 6 (MP6) (Pollock, 2012) particle-tracking analyses. In the MODPATH6 analyses, endpoints...
Molluscan Assemblages and Salinity Regimes from Three Southwest Coast Cores in Everglades National Park, Florida Molluscan Assemblages and Salinity Regimes from Three Southwest Coast Cores in Everglades National Park, Florida
Paleoecologic analyses of cores from the estuarine areas of Everglades National Park (ENP) by the U.S. Geological Survey began in the mid-1990s. Results of these analyses have contributed to an understanding of changes in salinity regimes, freshwater flow, and habitats of the Greater Everglades Ecosystem over the last several thousand years. Twentieth century changes to salinity and...
Mollusk diet of wild caught Black Carp (Mylopharyngodon piceus) from the Mississippi River drainage, 2019 - 2023 Mollusk diet of wild caught Black Carp (Mylopharyngodon piceus) from the Mississippi River drainage, 2019 - 2023
The dataset is an inventory (enumeration and taxonomic identification) of mollusk diet items consumed by wild-caught black carp (Mylopharyngodon piceus), based on the examination of gut contents from black carp collected in the lower Mississippi River drainage of the U.S. in 2019 through 2023.
Monotonic trend computations for streamflow statistics within and near the Mobile Bay and Perdido Bay watersheds, United States, 1950–2022 Monotonic trend computations for streamflow statistics within and near the Mobile Bay and Perdido Bay watersheds, United States, 1950–2022
This data release provides comprehensive results of monotonic trend assessment for long-term U.S. Geological Survey (USGS) streamgages in or proximal to the watersheds of Mobile and Perdido Bays, south-central United States (Tatum and others, 2024). Long-term is defined as streamgages having at least five complete decades of daily streamflow data since January 1, 1950, exclusive to those
Monthly ensemble outputs from the National Hydrologic Model Precipitation-Runoff Modeling System and the Weather Research and Forecasting model hydrologic modeling system for the conterminous United States, Alaska, Hawaii, and Puerto Rico for water years Monthly ensemble outputs from the National Hydrologic Model Precipitation-Runoff Modeling System and the Weather Research and Forecasting model hydrologic modeling system for the conterminous United States, Alaska, Hawaii, and Puerto Rico for water years
The Integrated Water Availability Assessment uses an ensemble of outputs from two hydrologic models to assess water supply conditions. Results from the two models, the National Hydrologic Model Precipitation-Runoff Modeling System (NHM-PRMS) and Weather Research and Forecasting model hydrologic modeling system (WRF-Hydro) were averaged to create a single model ensemble. A unique instance...
Monthly NDVI and Pixel Reliability Scores for MODIS Imagery of 12 Months Prior and 12 Months Post Wildland Fire Event for the Islands of Guam, Yap and Palau from 2016 to 2020 Monthly NDVI and Pixel Reliability Scores for MODIS Imagery of 12 Months Prior and 12 Months Post Wildland Fire Event for the Islands of Guam, Yap and Palau from 2016 to 2020
These data provide monthly NDVI and pixel reliability values from MODIS imagery for 12-months prior to and 12-months following wildland fire occurrences on each island. Burned areas were derived from higher resolution imagery (eg. MAXAR) and burned pixels (250m resolution) were defined as those for which burned areas intersected with 25% or more of each MODIS pixel (indicated by...
Monthly SSEBop Landsat 30-meter actual evapotranspiration in the Milk River basin (U.S. and Canada) for the growing season (April - October) from 1985-2023 Monthly SSEBop Landsat 30-meter actual evapotranspiration in the Milk River basin (U.S. and Canada) for the growing season (April - October) from 1985-2023
Monthly actual ET (ETa) data estimated for the growing season (April - October) at 30-meter resolution with the Operational Simplified Surface Energy Balance (SSEBop) model (version 2.6) using satellite imagery obtained from Landsat 4, 5, 7, 8, and 9, and reference evapotranspiration obtained from the North America Land Data Assimilation 2 (NLDAS2) product for the Milk River basin, from...
Monthly twelve-digit hydrologic unit code aggregations of the National Hydrologic Model Precipitation-Runoff Modeling System modeling application for Alaska, 1980-2021 (ver. 2.0, February 2026) Monthly twelve-digit hydrologic unit code aggregations of the National Hydrologic Model Precipitation-Runoff Modeling System modeling application for Alaska, 1980-2021 (ver. 2.0, February 2026)
This data release contains spatially and temporally summarized simulated variables from the National Hydrologic Model infrastructure with the Precipitation-Runoff Modeling System (NHM-PRMS) modeling application forced with Daymet version 4 for the spatial extent of Alaska (Koczot and others, 2025) from January 1980 through December 2021. Variables are summarized to a monthly time step at...