Evapotranspiration (ET) Francisco Ochoa New Mexico Water Resources - - PowerPoint PPT Presentation

Evapotranspiration (ET)

Francisco Ochoa New Mexico Water Resources Research Institute

Mapping the invisible – Remote Sensing Approach

• ET modeling efforts are based on

remote sensing, the observation of the Earth from space borne satellites

• Collaborated with experts from

USGS, USDA, NOAA and various universities in modeling, ET, remote sensing, and hydrology

• ET research being conducted by

this project is at the cutting edge of current science

Landsat 8 in orbit (Photo courtesy of NASA)

Evapotranspiration in New Mexico

• Available ET remote sensing based models
• REEM – Regional Evapotranspiration Estimate Model (NMSU)
• METRIC – Mapping Evapotranspiration at high Resolution with Internalized

Calibration (University of Idaho & NM Tech)

• ETRM – Evapotranspiration and Recharge Model (NM Tech)
• SSEBop – Simplified Surface Energy Balance Model (USGS)
• ALEXI – Atmospheric Land Exchange Inverse Model (USDA/NOAA)
• Joint ET model research approach from NM Tech, NMSU, and USGS
• Irrigated lands: SSEBop – Simplified Surface Energy Balance Model (USGS)
• Non-irrigated lands: ETRM – Evapotranspiration and Recharge Model (NM

Tech)

Ensemble Evapotranspiration Tool

• Provides mean ET estimates for

irrigated and non-irrigated areas at different spatial scales

• USGS HUC8 Watersheds
• New Mexico Water Planning

Regions

• New Mexico Counties

Current user interface of the ensemble ET tool (under development)

Evapotranspiration Modeling Outcomes

• Better resolution and

improved quality of statewide ET

• ET data are being

incorporated into NMDSWB model for better understating of

• ur hydrological cycle
• Developing ET

ensemble method and GIS tools for use by stakeholders