Dataset Identification:
Resource Abstract:
- description: This dataset was created in support of a U.S. Geological Survey (USGS) study focusing on groundwater resources
in the Great Basin carbonate and alluvial aquifer system (GBCAAS). The GBCAAS is a complex aquifer system comprised of both
unconsolidated and bedrock formations covering an area of approximately 110,000 square miles. The aquifer system is situated
in the eastern portion of the Great Basin Province of the western United States. The eastern Great Basin is experiencing rapid
population growth and has some of the highest per capita water use in the Nation. These factors, combined with its arid setting,
have levied intensive demand upon current groundwater resources and, thus, predictions of future shortages. Because of the
large regional extent of the aquifer system, rapid growth in the region, and the reliance upon groundwater for urban populations,
agriculture, and native habitats, the GBCAAS was selected by the USGS Water Resources program as part of the National Water
Census Initiative to evaluate the nation's groundwater availability. This dataset contains hydrographic area (HA) boundaries
and polygons for the GBCAAS study area. The study area consists of 165 HAs based on Great Basin HAs defined by the USGS in
1988 (Harrill and others, 1988; Buto, 2009). The study area is characterized by north-south trending alluvial basins separated
by intervening mountain ranges. HA boundaries generally coincide with the topographic highs separating these basins but may
also contain arbitrary divisions that have no topographic control. HAs generally consist of thick layers of unconsolidated
geologic deposits in the basins and consolidated bedrock in the mountain ranges. The basins are underlain by bedrock at varying
depths. Much of the bedrock in the study area consists of permeable carbonate and volcanic rock strata, both of which allow
some degree of hydraulic connection between hydrographic areas. The hydrographic area boundaries in this dataset have been
assigned a code identifying each boundary as a potential barrier, conduit, or neutral zone to groundwater flow between basins.
References cited: Buto, S.G., 2009, Digital representation of 1:1,000,000-scale Hydrographic Areas of the Great Basin: U.S.
Geological Survey Digital Data Report 457, 5 p., <https://pubs.usgs.gov/ds/457/> Harrill, J.R., Gates, J.S., and Thomas,
J.M., 1988, Major ground-water flow systems in the Great Basin region of Nevada, Utah, and adjacent states: U.S. Geological
Survey Hydrologic Investigations Atlas HA-694-C, 2 sheets, scale 1:1,000,000. <http://pubs.er.usgs.gov/usgspubs/ha/ha694C>;
abstract: This dataset was created in support of a U.S. Geological Survey (USGS) study focusing on groundwater resources in
the Great Basin carbonate and alluvial aquifer system (GBCAAS). The GBCAAS is a complex aquifer system comprised of both unconsolidated
and bedrock formations covering an area of approximately 110,000 square miles. The aquifer system is situated in the eastern
portion of the Great Basin Province of the western United States. The eastern Great Basin is experiencing rapid population
growth and has some of the highest per capita water use in the Nation. These factors, combined with its arid setting, have
levied intensive demand upon current groundwater resources and, thus, predictions of future shortages. Because of the large
regional extent of the aquifer system, rapid growth in the region, and the reliance upon groundwater for urban populations,
agriculture, and native habitats, the GBCAAS was selected by the USGS Water Resources program as part of the National Water
Census Initiative to evaluate the nation's groundwater availability. This dataset contains hydrographic area (HA) boundaries
and polygons for the GBCAAS study area. The study area consists of 165 HAs based on Great Basin HAs defined by the USGS in
1988 (Harrill and others, 1988; Buto, 2009). The study area is characterized by north-south trending alluvial basins separated
by intervening mountain ranges. HA boundaries generally coincide with the topographic highs separating these basins but may
also contain arbitrary divisions that have no topographic control. HAs generally consist of thick layers of unconsolidated
geologic deposits in the basins and consolidated bedrock in the mountain ranges. The basins are underlain by bedrock at varying
depths. Much of the bedrock in the study area consists of permeable carbonate and volcanic rock strata, both of which allow
some degree of hydraulic connection between hydrographic areas. The hydrographic area boundaries in this dataset have been
assigned a code identifying each boundary as a potential barrier, conduit, or neutral zone to groundwater flow between basins.
References cited: Buto, S.G., 2009, Digital representation of 1:1,000,000-scale Hydrographic Areas of the Great Basin: U.S.
Geological Survey Digital Data Report 457, 5 p., <https://pubs.usgs.gov/ds/457/> Harrill, J.R., Gates, J.S., and Thomas,
J.M., 1988, Major ground-water flow systems in the Great Basin region of Nevada, Utah, and adjacent states: U.S. Geological
Survey Hydrologic Investigations Atlas HA-694-C, 2 sheets, scale 1:1,000,000. <http://pubs.er.usgs.gov/usgspubs/ha/ha694C>
Citation
- Title 1:1,000,000-scale hydrographic areas and flow systems for the Great Basin carbonate and alluvial aquifer system of Nevada,
Utah, and parts of adjacent states.
-
- creation Date
2018-05-20T01:23:08.723704
Resource language:
Processing environment:
Back to top:
Metadata data stamp:
2018-08-06T19:43:43Z
Resource Maintenance Information
- maintenance or update frequency:
- notes: This metadata record was generated by an xslt transformation from a dc metadata record; Transform by Stephen M. Richard, based
on a transform by Damian Ulbricht. Run on 2018-08-06T19:43:43Z
Metadata contact
-
pointOfContact
- organisation Name
CINERGI Metadata catalog
-
- Contact information
-
-
- Address
-
- electronic Mail Address cinergi@sdsc.edu
Metadata language
eng
Metadata character set encoding:
utf8
Metadata standard for this record:
ISO 19139 Geographic Information - Metadata - Implementation Specification
standard version:
2007
Metadata record identifier:
urn:dciso:metadataabout:01ea0c91-316a-4b79-af5e-b4bc415c677d
Metadata record format is ISO19139 XML (MD_Metadata)