Session 9A Advances in Evaporation and Evaporative Demand II

Wednesday, 9 January 2019: 10:30 AM-12:00 PM
North 127ABC (Phoenix Convention Center - West and North Buildings)
Host: 33rd Conference on Hydrology
Martha C. Anderson, USDA-ARS, Hydrology and Remote Sensing Laboratory, Beltsville, MD; Christopher Hain, NASA Marshall Space Flight Center, Earth Science Branch, Huntsville, AL and Justin Huntington, Desert Research Institute, Division of Hydrologic Services, Reno, NV

Advances in the estimation of evapotranspiration (ET) and atmospheric evaporative demand (Eo) are made across a broad range of scales and techniques, from in-situ observations to remote sensing and modeling. Specific topics for this session may include but are not limited to: (1) estimating ET from various perspectives: remote sensing platforms, ground-based point observations and parameterizations, plant-based experimentation, and water budgets; (2) operational ET estimation; (3) land surface-atmosphere feedbacks; (4) future remote sensing missions and needs for ET; (5) Eo as an input to operational LSMs to derive ET, schedule crop irrigation, and as a metric of hydroclimatic trends and variability. New methods are emerging to more robustly partition total ET between evaporation and transpiration fluxes from both a modeling and a measurement perspective. We encourage papers with a focus on information conveyed by E and T, as well as ET. This year, recognizing that transpiration is regulated through vegetation hydrodynamics, we are particularly seeking submissions relating to both experimental and theoretical work linking plant hydrodynamics, ecology, hydrology, and meteorology. Understanding and simulating these hydraulic behaviors of vegetation and their outcomes, in terms of water and carbon flux, is key to improving land-surface and hydrologic models. Advances in remote sensing of water content and new databases compiling extensive monitoring records of site- and plant-level water flux and hydraulic trait data are poised for incorporation into such models through an emerging body of vegetation hydrodynamics modeling frameworks.

10:45 AM
An Open-Source Modeling Suite for Monitoring Evapotranspiration at Regional and Field Scales
Mitchell Andrew Schull, CICS, College Park, MD; and C. R. Hain, M. C. Anderson, F. Gao, X. Zhan, and C. M. U. Neale
11:00 AM
Two-Source Energy Balance Model (TSEB) with Internal LAI Estimation for Evapotranspiration Estimation Using sUAS High-Resolution Imagery over Vineyards
Mahyar Aboutalebi, Utah State Univ., Logan, UT; and H. Nieto, A. Torres-Rua, M. Mckee, W. P. Kustas, C. Coopmans, J. G. Alfieri, W. A. White, L. G. McKee, L. E. Hipps, and J. H. Prueger

11:15 AM
Next Generation of Water Use Mapping Based on Merging Landsat and Sentinel-2 Satellite Data
Ramesh Singh, ASRC Federal InuTeq, Sioux Falls, SD; and G. B. Senay, M. Schauer, and Z. Wu

11:30 AM
Satellite-Based Mapping of Field-Scale Stress Indicators for Crop Yield Forecasting: An Application across the Corn Belt, USA
Yang Yang, USDA-ARS, Beltsville, MD; and M. C. Anderson, F. Gao, B. Wardlow, C. Hain, J. A. Otkin, J. G. Alfieri, Y. Yang, L. Sun, and W. Dulaney

11:45 AM
Direct Measurement of Lake Evaporation—A Texas Experiment
Andrew Weinberg, Texas Water Development Board, Austin, TX; and M. Vielleux and Y. Yang
12:00 PM
Developing and exploiting a new global reanalysis of evaporative demand for internation al food security assessments and drought monitoring
Mike Hobbins, NOAA, Boulder, CO
- Indicates paper has been withdrawn from meeting
- Indicates an Award Winner