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Selected Chemical and Physical Properties and Inorganic Constituents and Time-Series Nitrate in Samples from selected wells and/or springs, Petaluma Valley watershed, Sonoma County, California, 1959-2015. Selected Chemical and Physical Properties and Inorganic Constituents and Time-Series Nitrate in Samples from selected wells and/or springs, Petaluma Valley watershed, Sonoma County, California, 1959-2015.
This data release contains appendix C1 and appendix C2 for the USGS Scientific Investigations Report (SIR) titled Hydrologic and Geochemical Characterization of the Petaluma River Watershed, Sonoma County, California. Appendix C1 contains selected chemical and physical properties and inorganic constituents in samples from selected springs, and wells, Petaluma Valley watershed, Sonoma...
Groundwater-quality data in the Coachella Valley Domestic Supply Aquifer Study Unit, 2020: Results from the California GAMA Priority Basin Project Groundwater-quality data in the Coachella Valley Domestic Supply Aquifer Study Unit, 2020: Results from the California GAMA Priority Basin Project
The U.S. Geological Survey collected groundwater samples from 38 wells used for domestic and small system drinking water supply in the Coachella Valley of California in 2020. The wells were sampled for the Coachella Valley Basin (CODA) Domestic Aquifer Study Unit of the California State Water Resources Control Board Groundwater Ambient Monitoring and Assessment (GAMA) Program Priority...
Water-Quality Data and Geophysical Logs for Determination of Saline Groundwater in Selected Aquifers in Texas, 2021 Water-Quality Data and Geophysical Logs for Determination of Saline Groundwater in Selected Aquifers in Texas, 2021
The availability of groundwater-quality data along with geophysical information for relatively deep wells (wells generally more than 300 feet deep) containing saline water (dissolved-solids concentrations greater than 2,000 milligrams per liter)) is limited throughout the state of Texas. Water-quality samples are important for calibrating estimates of groundwater salinity derived from...
Data for aerial dispersal of Lygodium microphyllum spores within Arthur R. Marshall Loxahatchee National Wildlife Refuge, 2003 - 2004 Data for aerial dispersal of Lygodium microphyllum spores within Arthur R. Marshall Loxahatchee National Wildlife Refuge, 2003 - 2004
Old World Climbing Fern (Lygodium microphyllum (Cav.) R. Br.) is an invasive plant species threatening South Florida ecosystems. In 1989 L. microphyllum was observed in the Arthur R. Marshall Loxahatchee National Wildlife Refuge. L. microphyllum has attributes that allow it to thrive in South Florida. It produces a huge number of small spores that are easily suspended by wind and...
Algorithms for model parameter estimation and state estimation applied to a state-space model for one-dimensional vertical infiltration incorporating snowmelt rate as a system input Algorithms for model parameter estimation and state estimation applied to a state-space model for one-dimensional vertical infiltration incorporating snowmelt rate as a system input
The algorithms and input data included in this data release are used to interpret time-series data (water-table altitude, precipitation, snowmelt, and potential evapotranspiration) over an observation period to estimate model parameters of a State-Space Model (SSM) of vertical infiltration to the groundwater table. The SSM model is coupled with a Kalman Filter (KF) to estimate system...
Field, remote sensing, and modeling data used for Collins et al., Rockfall Kinematics from Massive Rock Cliffs: Outlier Boulders and Flyrock Resulting from the 2020 Whitney Portal, California Rockfalls Field, remote sensing, and modeling data used for Collins et al., Rockfall Kinematics from Massive Rock Cliffs: Outlier Boulders and Flyrock Resulting from the 2020 Whitney Portal, California Rockfalls
This data release includes information used to support the manuscript "Rockfall kinematics from massive rock cliffs: outlier boulders and flyrock from Whitney Portal, California rockfalls". The included datasets and supplement include data that was collected and processed to investigate the kinematics of boulder trajectories and impacts to both other boulders and to existing trees on the...