DWR Surface Water Supply Index by HUC | Colorado Information Marketplace

DWR Surface Water Supply Index by HUCThe Surface Water Supply Index (SWSI) is used as an indicator of surface water supply conditions in Colorado. The SWSI compares the total volume of water in a basin or sub-basin against the volume available in the same month of historical years. Depending on the month, the volume is a combination of streamflow, streamflow forecast, and reservoir storage. The SWSI is calculated for Colorado’s river basins and sub-basins; this data set provides information on the Colorado’s sub-basin-level SWSI calculation. More information is available at http://water.state.co.us/DWRDocs/Reports/Pages/SWSIReport.aspx.Visit the full page to view this data.

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The Socrata Open Data API (SODA) provides programmatic access to this dataset including the ability to filter, query, and aggregate data. For more more information, view the API docs for this dataset or visit our developer portal

API Endpoint:

Field Names:

Basin: basin
HUC8: huc8
HUC8 Name: huc8_name
Report Year: report_year
Report Month: report_month
SWSI: swsi
NEP: nep
SWSI Previous Year: swsi_previous_year
Change from Previous Year: change_from_previous_year
Reservoir Storage NEP: reservoir_storage_nep
Stream Flow NEP: stream_flow_nep
Forecasted Runoff NEP: forecasted_runoff_nep

Use OData to open the dataset in tools like Excel or Tableau. This provides a direct connection to the data that can be refreshed on-demand within the connected application.

Socrata OData documentation

Tableau users should select the OData v2 endpoint option.

Colorado Information Marketplace

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OData V4 Endpoint:

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