HQstatewide/Groundwater_SLR (FeatureServer)

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Service Description: Groundwater emergence and shoaling extents are derived from water table GeoTIFFs, which are calculated as steady-state groundwater model heads subtracted from high-resolution topographic Digital Elevation Model (DEM) land surface elevations. Results are provided as shapefiles of water table depth in specific depth ranges, with the following data coding in the "fbin_m" data column:-1 = marine inundation (below marine boundary condition (LMSL or MHHW) sea level)0 = water table at or above ground surface (emergent groundwater)1 = water table between 0-1 m depth (very shallow)2 = 1-2 m depth (shallow)5 = 2-5 m depth (moderate)6 = > 5 m depth (deep)Model results are aggregated by County, with separate County files for model results using the Local Mean Sea Level (LMSL) and Mean Higher-High Water (MHHW) marine boundary conditions. Each zipped County datafile (County_MHHW or County_LMSL) contains 6 folders: 3 containing full model results for each of the three horizontal hydraulic conductivities (Kh) used in the model (0.1, 1.0 and 10 m/d), and 3 containing "linear" results for each of the 3 Kh's, where sea level rise is added directly to the full model present-day (SLR 0m) water table. Each full model Kh folder contains depth-to-groundwater shapefiles for all twelve of the sea level rise scenarios (0 - 2m in 0.25m increments, 2.5m, 3m, and 5m), while linear Kh folders contain depth-to-groundwater shapefiles only for the 11 non-zero SLR cases, because the linear SLR 0m case is identical to the full model SLR 0m case.

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Has Versioned Data: false

MaxRecordCount: 2000

Supported Query Formats: JSON

Supports Query Data Elements: true

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Description:

Service Item Id: f188c24956214a9bbfc444735c2db5ae

Copyright Text: U.S. Geological Survey; Befus, K.M., Hoover, D.J., Barnard, P.L., and Erikson, L.H., 2020, Projected responses of the coastal water table for California using present-day and future sea-level rise scenarios: U.S. Geological Survey data release, https://doi.org/10.5066/P9H5PBXP.

Spatial Reference: 102100 (3857) LatestVCSWkid(0)

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Units: esriMeters

Document Info:

Enable Z Defaults: false

Supports ApplyEdits With Global Ids: false

Support True Curves : true

Only Allow TrueCurve Updates By TrueCurveClients : false

Supports Return Service Edits Option : true

Supports Dynamic Layers: false

Child Resources: Info Query Data Elements Relationships

Supported Operations: Query Query Contingent Values QueryDomains Extract Changes