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ARS Home » Midwest Area » Ames, Iowa » National Laboratory for Agriculture and The Environment » Soil, Water & Air Resources Research » Research » Publications at this Location » Publication #383201
Research Project: Managing Energy and Carbon Fluxes to Optimize Agroecosystem Productivity and Resilience

Location: Soil, Water & Air Resources Research

Title: The B-parameter relating L-VOD to satellite-scale crop plant water may not be constant over a growing season

Author
item Togliatti, Kaitlin
item LEWIS-BECK, COLIN - University Of Iowa
item WALKER, VICTORIA - University Of Montana
item HARTMAN, THEODORE - Iowa State University
item VANLOOCKE, ANDY - Iowa State University
item HORNBUCKLE, BRIAN - Iowa State University

Submitted to: Geoscience and Remote Sensing Symposium Proceedings
Publication Type: Proceedings
Publication Acceptance Date: 3/16/2021
Publication Date: 7/16/2021
Citation: Togliatti, K.E., Lewis-Beck, C., Walker, V.A., Hartman, T., Vanloocke, A., Hornbuckle, B.K. 2021. The B-parameter relating L-VOD to satellite-scale crop plant water may not be constant over a growing season. Geoscience and Remote Sensing Symposium. p. 6857-6860.

Interpretive Summary:

Technical Abstract: Satellite L-band vegetation optical depth (L-VOD) is a relatively new but potentially valuable vegetation product. We hypothesize that the relationship between L-VOD and crop plant water, as characterized by the “b-parameter,” should change over the growing season as crops progress through different developmental stages. We find that the b-parameter derived from SMOS and SMAP L-VOD and satellite-scale estimates of crop plant water made by the Agro-IBIS model does in fact exhibit a growing-season pattern. This pattern is consistent among different years during the first half of the growing season.