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OpenET uses best available science to provide easily accessible satellite-based evapotranspiration (ET) data for improved water management across the western United States.

Jump Right In

Jump in to the quick start docs and make your first request.

Deep Dive

Dive a little deeper and start exploring our API reference to get an idea of everything that's possible with OpenET. Here you'll find all the documentation you need to get up and running with OpenET's data services.
Last modified 2mo ago