Global Actual Evapotranspiration from 1982 to 2019 at 1 km Resolution

Global monthly actual evapotranspiration (ET) estimates from 1982 to 2019 with a 1000 m spatial resolution. The dataset is an ensemble product synthesized from PML, SSEBop, MOD16A2105, and NTSG source datasets using resampling techniques in Google Earth Engine. It was created by Abdelrazek Elnashar of the Chinese Academy of Sciences.

Use Cases

• Modeling long-term water balance and drought conditions based on the 38-year global evapotranspiration record.
• Analyzing trends in land surface energy partitioning based on the synthesized ensemble of ET estimates.
• Calibrating hydrological or climate models using the 1 km resolution global ET data.
• Studying the impact of climate change on regional water cycles based on the multi-decadal time series.

Strengths

• 38-year temporal coverage from 1982 to 2019.
• Global spatial coverage at a 1000 m x 1000 m resolution.
• Synthesized from four established ET source datasets (PML, SSEBop, MOD16A2105, NTSG).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and file size are unknown, which may limit suitability assessment.
• The synthesis method varies by year, which may introduce inconsistencies in the time series.

Provenance

Source

paperswithcode, with data from PML, SSEBop, MOD16A2105, and NTSG sources.

Collection Method

Ensemble synthesis via upscaling, downscaling, and averaging of source datasets in Google Earth Engine.

Time Range

1982 to 2019

Freshness

Last update date is unknown; freshness unverified.

Geography

Global