Geospatial datasets to assess karst aquifer systems in Schoharie and Montgomery Counties, New York

Dates

Publication Date: 2021-10-14
Time Period: 2021

Citation

Sporleder, B.A., DeMott, L.M., Fisher, B.N., Keto, D.S., and Fisher, S., 2021, Geospatial data to assess karst aquifer systems between Albany and Buffalo, New York (ver. 4.0, January 2024): U.S. Geological Survey data release, https://doi.org/10.5066/P9AYMP94.

Summary

Using publicly available data for Schoharie and Montgomery counties, New York, a series of geospatial overlays were created at 1:24,000 scale to examine the bedrock geology, groundwater table, soils, and surficial geology. Bedrock and surficial geology were refined using extant bedrock maps, well and borehole data from water- and gas-wells, soil data, and lidar data. Groundwater data were collected from New York State Department of Environmental Conservation and U.S. Geological Survey water-well databases to estimate the groundwater table. Soil data were used to examine soil thickness over bedrock and infiltration. An inventory of closed depressions was created using reconditioned lidar-derived bare-earth digital elevation models [...]

Summary

Using publicly available data for Schoharie and Montgomery counties, New York, a series of geospatial overlays were created at 1:24,000 scale to examine the bedrock geology, groundwater table, soils, and surficial geology. Bedrock and surficial geology were refined using extant bedrock maps, well and borehole data from water- and gas-wells, soil data, and lidar data. Groundwater data were collected from New York State Department of Environmental Conservation and U.S. Geological Survey water-well databases to estimate the groundwater table. Soil data were used to examine soil thickness over bedrock and infiltration.

An inventory of closed depressions was created using reconditioned lidar-derived bare-earth digital elevation models (DEMs) and a modeled stream network. Closed depressions were identified from the processed DEMs using threshold criteria of 10 and 30 centimeters (3.9 and 11.8 inches) for depth and 100 square meters (1076 square feet) for area. A combination of hydrologic, mining, and cultural features was used to eliminate false positives and filter out features that overlie existing waterbodies, streams, and mines and to remove artificial dams along roadways and railways.

This data release includes shapefiles containing the well data information including location, well depth, depth to bedrock, and groundwater depth; bedrock geology; surficial geology; interpolated bedrock surface contours; interpolated groundwater surface contours; soil saturated hydraulic conductivity; soil classes; and modeled closed depressions of 10 cm and 30 cm depth thresholds. This release also contains rasters of the interpolated bedrock surface, interpolated groundwater surface and land use.

Contacts

Point of Contact :: Laura M DeMott, New York Water Science Center
Originator :: Bradley A Sporleder, Laura M DeMott, Benjamin N Fisher, Douglas S Keto, Shannon Fisher
Metadata Contact :: Laura M DeMott, New York Water Science Center
Publisher :: U.S. Geological Survey
SDC Data Owner :: New York Water Science Center
USGS Mission Area :: Water Resources
Distributor :: U.S. Geological Survey - ScienceBase

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SchoMont_Metadata_v2.xml Original FGDC Metadata	View	52.22 KB	application/fgdc+xml
SchoMont_Bedrock_Geology.zip “Schoharie and Montgomery County Bedrock Geology”		96.37 KB	application/zip
SchoMont_Surficial_Geology.zip “Schoharie and Montgomery County Surficial Geology”		1.29 MB	application/zip
SchoMont_Land_Use.zip “Schoharie and Montgomery County Land Use”		239.2 KB	application/zip
SchoMont_xxcm.zip “Schoharie and Montgomery County 10cm and 30cm Closed Depressions”		8.91 MB	application/zip
SchoMont_xxcm_raw.zip “Schoharie and Montgomery County 10cm and 30cm Closed Depressions Raw Data”		120.47 MB	application/zip
SchoMont_Bedrock_Surface_Contours_v2.zip “Schoharie and Montgomery County Bedrock Surface Contours”		2.99 MB	application/zip
SchoMont_Bedrock_Surface_v2.zip “Schoharie and Montgomery County Bedrock Surface”		78.38 KB	application/zip
SchoMont_Groundwater_Surface_Contours_v2.zip “Schoharie and Montgomery County Groundwater Surface Contours”		2.96 MB	application/zip
SchoMont_Groundwater_Surface_v2.zip “Schoharie and Montgomery Groundwater Surface”		78.28 KB	application/zip
SchoMont_Ksat_v2.zip “Schoharie and Montgomery Saturated Hydraulic Conductivity”		18.82 MB	application/zip
SchoMont_Soil_Class_v2.zip “Schoharie and Montgomery County Soil Classes”		6.26 MB	application/zip
SchoMont_Wells_v3.zip “Schoharie and Montgomery County Wells”		37.24 KB	application/zip

Purpose

To provide resource managers data to more efficiently manage and protect groundwater resources in karst prone areas in Schoharie and Montgomery counties, NY.

Geospatial datasets to assess karst aquifer systems in Schoharie and Montgomery Counties, New York

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