%{search_type} search results

123 catalog results

RSS feed for this result
Map
10.323
Collection
[Groundwater Information Center, California: GIS Maps and Data]
This polygon shapefile contains the boundaries of 517 groundwater basins and subbasins as defined by the California Department of Water Resources as last modified by the Basin Boundary Emergency Regulation adopted on October 21, 2015. Groundwater basins are represented as polygon features and designated on the basis of geological and hydrological conditions - usually the occurrence of alluvial or unconsolidated deposits. When practical, large basins are also subdivided by political boundaries, as in the Central Valley. Basins are named and numbered per the convention of the Department of Water Resources. The associated data are considered DWR enterprise GIS data, which meet all appropriate requirements of the DWR GIS Spatial Data Standards.
Bulletin 118 defines the recognized groundwater basins and subbasins throughout the State of California. The Bulletin 118 document provides information on these basins/subbasins and the nature and extent of groundwater occurrence and management within the State. The Bulletin 118 dataset makes the geographic locations and extent of the 517 basins/subbasins publically available, for use in external mapping/GIS applications.
Map
4.857
Collection
[Groundwater Information Center, California: GIS Maps and Data]
This polygon shapefile depicts areas identified basin prioritization areas within California. At the time of the study (June 2014), Final Basin Prioritization findings indicate that 127 of California's 515 groundwater basins and subbasins are High and Medium priority. These basins account for 96% of California's annual groundwater pumping and supply 88% of the population which resides over groundwater basins. The remaining 388 basins are Low and Very Low priority and comprise 75% of the groundwater basins in the State. There are 515 alluvial groundwater basins and subbasins in California as defined in DWR's Bulletin 118. These basins contribute close to 40 percent of the California's annual water supply in an average year and as much as 45 percent in dry years. During extensive dry or drought years, groundwater can provide close to 60 percent of the water supply. Statewide, approximately 30 million people, or 80 percent of Californians, live in areas overlying alluvial groundwater basins. Some communities are 100 percent reliant on groundwater. The California Department of Water Resources (DWR) implemented the California Statewide Groundwater Elevation Monitoring (CASGEM) Program in response to legislation enacted in California's 2009 Comprehensive Water package. As part of the CASGEM Program and pursuant to the California Water Code (CWC §10933), DWR is required to prioritize California groundwater basins, so as to help identify, evaluate, and determine the need for additional groundwater level monitoring.
The CASGEM Groundwater Basin Prioritization (Basin Prioritization) is a statewide ranking of groundwater basin importance that incorporates groundwater reliance and focuses on basins producing greater than 90% of California's annual groundwater. Although the results are a statewide assessment; it is important to recognize the statewide findings are not intended to diminish the local importance of groundwater including in the smaller size or lower-use groundwater basins. This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center.
Map
0.084
Collection
[Groundwater Information Center, California: GIS Maps and Data]
This point shapefile represents the depth to groundwater below the ground surface in California during fall of 2013. These data show depth to groundwater values collected from wells. Depth information is represented in feet below the ground surface. Increasing values indicate increasing depth to groundwater (or deeper/lower water levels). Negative values indicate that the groundwater level is above ground surface. Water level measurements are selected based on measurement data and well construction information (where available) and approximate groundwater levels in the unconfined to uppermost semi-confined aquifers.
This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center.
Map
0.085
Collection
[Groundwater Information Center, California: GIS Maps and Data]
This point shapefile represents the depth to groundwater below the ground surface in California during fall of 2014. These data show depth to groundwater values collected from wells. Depth information is represented in feet below the ground surface. Increasing values indicate increasing depth to groundwater (or deeper/lower water levels). Negative values indicate that the groundwater level is above ground surface. Water level measurements are selected based on measurement data and well construction information (where available) and approximate groundwater levels in the unconfined to uppermost semi-confined aquifers.
This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center.
Map
0.092
Collection
[Groundwater Information Center, California: GIS Maps and Data]
This point shapefile represents the depth to groundwater below the ground surface in California during fall of 2015. These data show depth to groundwater values collected from wells. Depth information is represented in feet below the ground surface. Increasing values indicate increasing depth to groundwater (or deeper/lower water levels). Negative values indicate that the groundwater level is above ground surface. Water level measurements are selected based on measurement data and well construction information (where available) and approximate groundwater levels in the unconfined to uppermost semi-confined aquifers.
This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center.
Map
0.086
Collection
[Groundwater Information Center, California: GIS Maps and Data]
This point shapefile represents the depth to groundwater below the ground surface in California during spring of 2011. These data show depth to groundwater values collected from wells. Depth information is represented in feet below the ground surface. Increasing values indicate increasing depth to groundwater (or deeper/lower water levels). Negative values indicate that the groundwater level is above ground surface. Water level measurements are selected based on measurement data and well construction information (where available) and approximate groundwater levels in the unconfined to uppermost semi-confined aquifers.
This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center.
Map
0.128
Collection
[Groundwater Information Center, California: GIS Maps and Data]
This point shapefile represents the depth to groundwater below the ground surface in California during spring of 2012. These data show depth to groundwater values collected from wells. Depth information is represented in feet below the ground surface. Increasing values indicate increasing depth to groundwater (or deeper/lower water levels). Negative values indicate that the groundwater level is above ground surface. Water level measurements are selected based on measurement data and well construction information (where available) and approximate groundwater levels in the unconfined to uppermost semi-confined aquifers.
This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center.
Map
0.12
Collection
[Groundwater Information Center, California: GIS Maps and Data]
This point shapefile represents the depth to groundwater below the ground surface in California during spring of 2013. These data show depth to groundwater values collected from wells. Depth information is represented in feet below the ground surface. Increasing values indicate increasing depth to groundwater (or deeper/lower water levels). Negative values indicate that the groundwater level is above ground surface. Water level measurements are selected based on measurement data and well construction information (where available) and approximate groundwater levels in the unconfined to uppermost semi-confined aquifers.
This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center.
Map
0.144
Collection
[Groundwater Information Center, California: GIS Maps and Data]
This point shapefile represents the depth to groundwater below the ground surface in California during spring of 2014. These data show depth to groundwater values collected from wells. Depth information is represented in feet below the ground surface. Increasing values indicate increasing depth to groundwater (or deeper/lower water levels). Negative values indicate that the groundwater level is above ground surface. Water level measurements are selected based on measurement data and well construction information (where available) and approximate groundwater levels in the unconfined to uppermost semi-confined aquifers.
This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center.
Map
0.087
Collection
[Groundwater Information Center, California: GIS Maps and Data]
This point shapefile represents the depth to groundwater below the ground surface in California during spring of 2015. These data show depth to groundwater values collected from wells. Depth information is represented in feet below the ground surface. Increasing values indicate increasing depth to groundwater (or deeper/lower water levels). Negative values indicate that the groundwater level is above ground surface. Water level measurements are selected based on measurement data and well construction information (where available) and approximate groundwater levels in the unconfined to uppermost semi-confined aquifers.
This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center.
Map
0.11
Collection
[Groundwater Information Center, California: GIS Maps and Data]
This point shapefile represents the depth to groundwater below the ground surface in California during spring of 2016. These data show depth to groundwater values collected from wells. Depth information is represented in feet below the ground surface. Increasing values indicate increasing depth to groundwater (or deeper/lower water levels). Negative values indicate that the groundwater level is above ground surface. Water level measurements are selected based on measurement data and well construction information (where available) and approximate groundwater levels in the unconfined to uppermost semi-confined aquifers.
This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center.
Collection
[Groundwater Information Center, California: GIS Maps and Data]
This raster dataset (GeoTIFF) represents the depth to groundwater below the ground surface using a color ramp. These data represent groundwater levels in California during fall 2013. This layer is a smoothed approximation of the groundwater level 'surface' based on the measurement data. The measurement values may not exactly match the color ramp values because of the smoothing process. Water level measurements are selected based on measurement data and well construction information (where available) and approximate groundwater levels in the unconfined to uppermost semi-confined aquifers.
This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center.
Collection
[Groundwater Information Center, California: GIS Maps and Data]
This raster dataset (GeoTIFF) represents the depth to groundwater below the ground surface using a color ramp. These data represent groundwater levels in California during fall 2014. This layer is a smoothed approximation of the groundwater level 'surface' based on the measurement data. The measurement values may not exactly match the color ramp values because of the smoothing process. Water level measurements are selected based on measurement data and well construction information (where available) and approximate groundwater levels in the unconfined to uppermost semi-confined aquifers.
This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center.
Collection
[Groundwater Information Center, California: GIS Maps and Data]
This raster dataset (GeoTIFF) represents the depth to groundwater below the ground surface using a color ramp. These data represent groundwater levels in California during fall 2015. This layer is a smoothed approximation of the groundwater level 'surface' based on the measurement data. The measurement values may not exactly match the color ramp values because of the smoothing process. Water level measurements are selected based on measurement data and well construction information (where available) and approximate groundwater levels in the unconfined to uppermost semi-confined aquifers.
This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center.
Collection
[Groundwater Information Center, California: GIS Maps and Data]
This raster dataset (GeoTIFF) represents the depth to groundwater below the ground surface using a color ramp. These data represent groundwater levels in California during spring 2011. This layer is a smoothed approximation of the groundwater level 'surface' based on the measurement data. The measurement values may not exactly match the color ramp values because of the smoothing process. Water level measurements are selected based on measurement data and well construction information (where available) and approximate groundwater levels in the unconfined to uppermost semi-confined aquifers.
This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center.
Collection
[Groundwater Information Center, California: GIS Maps and Data]
This raster dataset (GeoTIFF) represents the depth to groundwater below the ground surface using a color ramp. These data represent groundwater levels in California during spring 2012. This layer is a smoothed approximation of the groundwater level 'surface' based on the measurement data. The measurement values may not exactly match the color ramp values because of the smoothing process. Water level measurements are selected based on measurement data and well construction information (where available) and approximate groundwater levels in the unconfined to uppermost semi-confined aquifers.
This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center.
Collection
[Groundwater Information Center, California: GIS Maps and Data]
This raster dataset (GeoTIFF) represents the depth to groundwater below the ground surface using a color ramp. These data represent groundwater levels in California during spring 2013. This layer is a smoothed approximation of the groundwater level 'surface' based on the measurement data. The measurement values may not exactly match the color ramp values because of the smoothing process. Water level measurements are selected based on measurement data and well construction information (where available) and approximate groundwater levels in the unconfined to uppermost semi-confined aquifers.
This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center.
Collection
[Groundwater Information Center, California: GIS Maps and Data]
This raster dataset (GeoTIFF) represents the depth to groundwater below the ground surface using a color ramp. These data represent groundwater levels in California during spring 2014. This layer is a smoothed approximation of the groundwater level 'surface' based on the measurement data. The measurement values may not exactly match the color ramp values because of the smoothing process. Water level measurements are selected based on measurement data and well construction information (where available) and approximate groundwater levels in the unconfined to uppermost semi-confined aquifers.
This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center.
Collection
[Groundwater Information Center, California: GIS Maps and Data]
This raster dataset (GeoTIFF) represents the depth to groundwater below the ground surface using a color ramp. These data represent groundwater levels in California during fall 2015. This layer is a smoothed approximation of the groundwater level 'surface' based on the measurement data. The measurement values may not exactly match the color ramp values because of the smoothing process. Water level measurements are selected based on measurement data and well construction information (where available) and approximate groundwater levels in the unconfined to uppermost semi-confined aquifers.
This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center.
Collection
[Groundwater Information Center, California: GIS Maps and Data]
This raster dataset (GeoTIFF) represents the depth to groundwater below the ground surface using a color ramp. These data represent groundwater levels in California during spring 2016. This layer is a smoothed approximation of the groundwater level 'surface' based on the measurement data. The measurement values may not exactly match the color ramp values because of the smoothing process. Water level measurements are selected based on measurement data and well construction information (where available) and approximate groundwater levels in the unconfined to uppermost semi-confined aquifers.
This layer is intended to be used as a compliment to data, reports, and other information provided by the California Groundwater Information Center.