1. Short title This Act may be cited as the Evapotranspiration Data Act . 2. Definitions In this Act: (1) Evapotranspiration; ET The terms evapotranspiration and ET mean the process by which water is transferred from the land to the atmosphere by— (A) evaporation from soil and other surfaces; and (B) transpiration from plants. (2) Indian Tribe The term Indian Tribe has the meaning given the term in section 4 of the Indian Self-Determination and Education Assistance Act ( 25 U.S.C. 5304 ). (3) Non-Federal entity The term non-Federal entity means— (A) an institution of higher education; (B) a State (including a State agency); (C) an Indian Tribe; (D) a private sector entity; (E) a nongovernmental organization; or (F) an irrigation district, water district, groundwater sustainability agency, or other organization with water or power delivery authority. (4) Secretary The term Secretary means the Secretary of the Interior, acting through the Director of the United States Geological Survey. 3. Evapotranspiration data (a) In general The Secretary may— (1) evaluate, analyze, test, refine, and improve ET data and models, based on the best available science and technology, including satellite-based ET data with Landsat scale (30–100m) and ground-based ET measurement technologies, across public land (including State forests and units of the National Forest System), rangeland, agricultural land, and large urban and other vegetated landscapes; (2) provide and maintain estimates of ET data across large landscapes over certain periods of time; (3) use ET data to advance the quantification of evaporation and consumptive water use on public land (including State forests and units of the National Forest System), rangeland, agricultural land, and large urban and other vegetated landscapes