View In:   ArcGIS Online Map Viewer

Name: Irrigated Crop Areas - Richmond Winter

Display Field: Catchment

Type: Feature Layer

Geometry Type: esriGeometryPolygon

Description: This dataset contains a satellite observed timeseries of the extent of winter irrigated crop areas in NSW from present day, back to 1987. Observations have been derived from medium-resolution multi-spectral satellite imagery (30m/pixel Landsat with a 16 day return interval and 10 m/pixel Sentinel-2 with a 5 day return interval). The presence of irrigated crops is identified using established vegetation‑condition indicators commonly referenced in remote‑sensing literature to assess crop vigour and water‑stress patterns. Additionally, Earth observation–derived evapotranspiration datasets are incorporated to support the estimation of irrigated crop areas, improving the distinction between irrigated and non‑irrigated agricultural land. Expert opinion is then applied to qualify whether a field was irrigated, based on its greenness relative to the surrounding landscape throughout the winter season (May to October). The polygons are delineated in a semi-supervised manner and are accurate to the closest hectare.A metadata and data quality statement is available in the Documents section of the dataset homepage on the NSW SEED portal.

Service Item Id: 9e5abffdbfa042e6b631768267549f65

Copyright Text: NSW Department of Climate Change, Energy, the Environment and Water

Default Visibility: false

MaxRecordCount: 2000

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Supported Query Formats: JSON, geoJSON, PBF

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Use Standardized Queries: true

Supports ValidateSQL: true

Supports Calculate: true

Supports Datum Transformation: true

Extent:

XMin: 142.38667565800006
YMin: -34.58128162699995
XMax: 153.59803445300008
YMax: -28.375554903999955
Spatial Reference: 4283  (4283)  LatestVCSWkid(0)

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Type ID Field: Class_code

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Child Resources:

Supported Operations:   Query   Query Analytic   Validate SQL   Generate Renderer   Return Updates   Iteminfo   Thumbnail   Metadata   Update Metadata