Research Hydrologist
Virginia and West Virginia Water Science Center
Email:
jchanat@usgs.gov
Office Phone:
804-261-2618
Fax:
804-261-2657
Location
North Run VI
1730 East Parham Road
Richmond
, VA
23228
US
Supervisor:
John D Jastram
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Includes the following files for the indicated years. Includes the following files for the indicated years. Atmospheric Deposition (atmdep) Biosolids CSO Direct Deposit Fertilizer Land Use Manure Nitrogen Fixation (nfix) Rapid Infiltration Basins (RIB) Septic Uptake Wastewater
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This data release documents spatiotemporal water-quality, landscape, and climatic conditions in Fairfax County, Virginia from 2007 through 2018. These data were used to evaluate the water-quality and ecological condition of 20 Fairfax County watersheds monitored since 2007. Data include measures of water-quality, precipitation, air temperature, land use, land cover, wastewater and stormwater infrastructure, soil properties, geologic setting, and stream networks. Annual values from 2007 through 2018 are reported for data expected to change over time. Watershed-specific values are reported for data that differ across the landscape. Annual values for the 20 study watersheds and Fairfax County are reported in the file...
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Fairfax,
USGS Science Data Catalog (SDC),
Water Quality,
air temperature,
biota, All tags...
land use and land cover,
precipitation (atmospheric),
water quality, Fewer tags
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This data release contains one dataset and one model archive in support of the journal article, "Leveraging machine learning to automate regression model evaluations for large multi-site water-quality trend studies," by Jennifer C. Murphy and Jeffrey G. Chanat. The model archive contains scripts (run in R) to reproduce the four machine learning models (logistic regression, linear and quadratic discriminant analysis, and k-nearest neighbors) trained and tested as part of the journal article. The dataset contains the estimated probabilities for each of these models when applied to a training and test dataset.
Categories: Data;
Types: Map Service,
OGC WFS Layer,
OGC WMS Layer,
OGC WMS Service;
Tags: Delaware River Basin,
USGS Science Data Catalog (SDC),
United States of America,
Water Quality,
biota, All tags...
k-nearest neighbors,
linear discriminant analysis,
logistic regression,
quadratic discriminant analysis, Fewer tags
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Includes the following files for the indicated years. Includes the following files for the indicated years. Atmospheric Deposition (atmdep) Biosolids CSO Direct Deposit Fertilizer Land Use Manure Nitrogen Fixation (nfix) Rapid Infiltration Basins (RIB) Septic Uptake Wastewater
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Includes the following files for the indicated years. Includes the following files for the indicated years. Atmospheric Deposition (atmdep) Biosolids CSO Direct Deposit Fertilizer Land Use Manure Nitrogen Fixation (nfix) Rapid Infiltration Basins (RIB) Septic Uptake Wastewater
|
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