Usage

Water Stress (NDWI)

Dedicated shortcut endpoints for NDWI-based water stress monitoring. These are convenience wrappers around the general vegetation indices endpoint with indexType: "NDWI".

Process Water Stress

Use processWaterStress() to generate an NDWI analysis for your field:

GraphQL Mutation

mutation { processWaterStress( polygonId: "abc123-def456-ghi789" startDate: "2025-06-01" endDate: "2025-08-31" dailyEstimates: false ) { Status Message Result { requestId } } }

Parameters

polygonId REQUIRED

The polygon to analyze.

startDate REQUIRED

Start of the analysis period (YYYY-MM-DD).

endDate REQUIRED

End of the analysis period (YYYY-MM-DD).

dailyEstimates

Optional boolean. Enable ML-based daily gap filling. Consumes processing units.

Retrieve Water Stress

GraphQL Query

query { retrieveWaterStress( polygonId: "abc123-def456-ghi789" startDate: "2025-06-01" endDate: "2025-08-31" ) { colorlegend tif png json } }

Response Format

Field	Description
`colorlegend`	URL to the static NDWI color legend image.
`tif`	Array of GeoTIFF URLs with full NDWI raster data for each available date.
`png`	Array of PNG image URLs for visual display, one per date.
`json`	Array of statistical summaries (min, max, mean, std) for each date.

Tip: Combine water stress data with plant health to get a complete picture of crop conditions. Areas with low NDWI and declining NDVI often indicate drought stress.