Evapotranspiration (ET): Advances in In Situ ET Measurements and Remote Sensing-Based ET Estimation, Mapping, and Evaluation
Evapotranspiration (ET): Advances in In Situ ET Measurements and Remote Sensing-Based ET Estimation, Mapping, and Evaluation
Session ID#: 119509
Session Description:
Evapotranspiration (ET) is a key landscape
response variable that links the soil-water-vegetation
system with the atmosphere through bio-physical
processes for mass and energy exchange. The
estimation of ET is prone to uncertainties.
This session will cover both in situ and satellite-based
estimations of ET. In situ
methods (lysimeters, eddy covariance, Bowen Ratio,
sap flow, scintillometer, etc.) are essential for
understanding ET processes, field verification, and
bias-correction of remote sensing and modelling
approaches. Satellite-based estimations are
important for large area ET mapping and basin
scale applications. However, sources and
magnitude of bias and uncertainty tend to vary by
method, spatiotemporal scale, and hydro-climatic
region. The scope of the session will include: (1) ET
estimation with in situ techniques: improved
methods and analysis of long time-series, (2) ET
modeling using optical and thermal sensors, (3)
applications for a range of ecosystems and
spatiotemporal scales, and (4) accuracy evaluation
for decision making.
response variable that links the soil-water-vegetation
system with the atmosphere through bio-physical
processes for mass and energy exchange. The
estimation of ET is prone to uncertainties.
This session will cover both in situ and satellite-based
estimations of ET. In situ
methods (lysimeters, eddy covariance, Bowen Ratio,
sap flow, scintillometer, etc.) are essential for
understanding ET processes, field verification, and
bias-correction of remote sensing and modelling
approaches. Satellite-based estimations are
important for large area ET mapping and basin
scale applications. However, sources and
magnitude of bias and uncertainty tend to vary by
method, spatiotemporal scale, and hydro-climatic
region. The scope of the session will include: (1) ET
estimation with in situ techniques: improved
methods and analysis of long time-series, (2) ET
modeling using optical and thermal sensors, (3)
applications for a range of ecosystems and
spatiotemporal scales, and (4) accuracy evaluation
for decision making.
Co-Sponsor(s):
- AMS: American Meteorological Society -
- EGU: European Geosciences Union -
Index Terms:
1818 Evapotranspiration [HYDROLOGY]
1847 Modeling [HYDROLOGY]
1855 Remote sensing [HYDROLOGY]
1895 Instruments and techniques: monitoring [HYDROLOGY]
Primary Convener: Gabriel B Senay, USGS Earth Resources Observation and Science (EROS) Center Sioux Falls, Fort Collins, CO, United States
Convener: Naga Manohar Velpuri, International Water Management Institute, Remote Sensing Hydrology– Water Accounting, Silverton, South Africa
Primary Liaison: Gabriel B Senay, U.S. Geological Survey Earth Resources Observation and Science (EROS) Center, EROS/North Central Climate Adaptation Science Center, Fort Collins, CO, United States
See more of: Hydrology