LANID-US: Annual Irrigation Maps for the United States, 1997-2017
by Yanhua Xie / University of Wisconsin–Madison
Available on 1 platform
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Description
1997-2017 annual irrigation maps for the contiguous United States at 30-meter resolution, derived from Landsat data. The dataset includes binary annual layers, irrigation frequency, change metrics, and ground reference samples for center-pivot and rainfed fields. It is designed for analyzing long-term irrigation patterns, trends, and land use changes.
Use Cases
Tracking irrigation expansion or contraction over two decades using the annual `lanidYYYY` binary layers.
Analyzing long-term irrigation stability or abandonment with derived products like `formerIrr` and `irrWholePeriod`.
Quantifying regional irrigation change between time periods (1998-2007 vs. 2008-2017) using the `irrFreqChange` and `irrAreaGain` metrics.
Validating remote sensing models with the provided ground reference samples (`irrSamples_eastCONUS`, `rainfedSamples_eastCONUS`).
Strengths
Provides a 21-year continuous annual time series (1997-2017) for longitudinal analysis.
Includes 9,954 ground reference sample locations (4,976 irrigated, 4,978 rainfed) for validation in the eastern CONUS.
Key metadata such as row count, file size, and specific last update date are unavailable across all sources.
Spatial coverage is limited to the contiguous United States (CONUS).
Ground reference samples are only provided for the eastern CONUS, potentially limiting validation in other regions.
Provenance
Source
Yanhua Xie, University of Wisconsin–Madison
Collection Method
Derived from Landsat satellite imagery; technical details referenced in a peer-reviewed publication (DOI: 10.1016/j.rse.2021.112445).
Time Range
1997-2017
Geography
Contiguous United States (CONUS)
License is listed as 'Open Access (green)' but the specific terms are not detailed. Users should consult the provided DOI links for full technical and data description details.