Evapotranspiration Mapping
Definition
Evapotranspiration Mapping uses GIS and remote sensing to quantify water loss through evaporation and plant transpiration. It is crucial in agriculture, hydrology, and climate modeling.
Application
Farmers monitor irrigation needs. Water managers balance supply and demand. Climate scientists model water cycles. GIS visualizes ET rates using MODIS, Landsat, or meteorological models like SEBAL or METRIC.
FAQ
Why is ET important?
It influences crop yield, drought prediction, and water resource planning.
How is ET calculated?
From temperature, vegetation, radiation, and wind data, often via satellite models.
What platforms support mapping?
Google Earth Engine, ArcGIS, SNAP, and Python scripts with remote sensing libraries.
Who uses ET maps?
Agronomists, hydrologists, climatologists, and irrigation authorities.