IrrMapper Irrigated Lands, Version 1.2

UMT/Climate/IrrMapper_RF/v1_2
Dataset Availability
1986-01-01T00:00:00Z–2024-01-01T00:00:00Z
Dataset Provider
Earth Engine Snippet
ee.ImageCollection("UMT/Climate/IrrMapper_RF/v1_2")

Description

IrrMapper is an annual classification of irrigation status in the 11 Western United States made at Landsat scale (i.e., 30 m) using the Random Forest algorithm, covering years 1986 - present.

While the IrrMapper paper describes classification of four classes (i.e., irrigated, dryland, uncultivated, wetland), the dataset is converted to a binary classification of irrigated and non-irrigated.

'Irrigated' refers to the detection of any irrigation during the year. The IrrMapper random forest model was trained using an extensive geospatial database of land cover from each of four irrigated- and non-irrigated classes, including over 50,000 human-verified irrigated fields, 38,000 dryland fields, and over 500,000 square kilometers of uncultivated lands.

For version 1.2, the original training data was greatly expanded, a RF model built for each state, and a more thorough validation and uncertainty analysis undertaken. See the supplement to our paper on the impacts of irrigation on streamflow.

Bands

Resolution
30 meters

Bands

Name Description
classification

Irrigated pixels have the value of 1, the other pixels are masked out.

Terms of Use

Terms of Use

CC-BY-4.0

Citations

Citations:

  • Ketchum, D.; Jencso, K.; Maneta, M.P.; Melton, F.; Jones, M.O.; Huntington, J. IrrMapper: A Machine Learning Approach for High Resolution Mapping of Irrigated Agriculture Across the Western U.S., Remote Sens. 2020, 12, 2328. doi:10.3390/rs12142328

    Ketchum, D., Hoylman, Z.H., Huntington, J. et al. Irrigation intensification impacts sustainability of streamflow in the Western United States. Commun Earth Environ 4, 479 (2023). doi:10.1038/s43247-023-01152-2

Explore with Earth Engine

Code Editor (JavaScript)

var dataset = ee.ImageCollection('UMT/Climate/IrrMapper_RF/v1_2');
var irr = dataset.filterDate('2023-01-01', '2023-12-31').mosaic();

var visualization = {
  min: 0.0,
  max: 1.0,
  palette: ['blue']
};
Map.addLayer(irr, visualization, 'IrrMapper 2023');
Map.setCenter(-112.516, 45.262, 10);
Open in Code Editor
IrrMapper is an annual classification of irrigation status in the 11 Western United States made at Landsat scale (i.e., 30 m) using the Random Forest algorithm, covering years 1986 - present. While the IrrMapper paper describes classification of four classes (i.e., irrigated, dryland, uncultivated, wetland), the dataset is converted to …
UMT/Climate/IrrMapper_RF/v1_2, landsat-derived
1986-01-01T00:00:00Z/2024-01-01T00:00:00Z
31.3 -124.5 49.0 -99.0
Google Earth Engine