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Khabbazan, S. (author), Steele-Dunne, S.C. (author), Vermunt, P.C. (author), Judge, J. (author), Vreugdenhil, M. (author), Gao, G. (author)The presence of surface water on the canopy affects radar backscatter. However, its influence on the relationship between radar backscatter and crop biophysical parameters has not been investigated. The aim of this study was to quantify the influence of surface canopy water (SCW) on the relationship between L-band radar backscatter and...journal article 2022
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Vermunt, P.C. (author), Steele-Dunne, S.C. (author), Khabbazan, S. (author), Kumar, V. (author), Judge, Jasmeet (author)For a good interpretation of radar backscatter sensitivity to vegetation water dynamics, we need to know which parts of the vegetation layer control that backscatter. However, backscatter sensitivity to different depths in the canopy is poorly understood. This is partly caused by a lack of observational data to describe the vertical moisture...journal article 2022
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Vermunt, P.C. (author), Khabbazan, S. (author), Steele-Dunne, S.C. (author), Judge, Jasmeet (author), Monsivais-Huertero, Alejandro (author), Guerriero, Leila (author), Liu, Pang Wei (author)The latest developments in radar mission concepts suggest that subdaily synthetic aperture radar will become available in the next decades. The goal of this study was to demonstrate the potential value of subdaily spaceborne radar for monitoring vegetation water dynamics, which is essential to understand the role of vegetation in the climate...journal article 2020
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Shao, W. (author), Coenders-Gerrits, Miriam (author), Judge, Jasmeet (author), Zeng, Yijian (author), Su, Ye (author)The process of evaporation interacts with the soil, which has various comprehensive mechanisms. Multiphase flow models solve air, vapour, water, and heat transport equations to simulate non-isothermal soil moisture transport of both liquid water and vapor flow, but are only applied in non-vegetated soils. For (sparsely) vegetated soils often...journal article 2018
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Steele-Dunne, S.C. (author), McNairn, Heather (author), Monsivais-Huertero, Alejandro (author), Judge, Jasmeet (author), Liu, Pang Wei (author), Papathanassiou, Kostas (author)Observations from spaceborne radar contain considerable information about vegetation dynamics.The ability to extract this information could lead to improved soil moisture retrievals and the increased capacity to monitor vegetation phenology and water stress using radar data.The purpose of this review paper is to provide an overview of the...review 2017
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van Emmerik, T.H.M. (author), Steele-Dunne, S.C. (author), Judge, J (author), van de Giesen, N.C. (author)Radar backscatter from vegetated surface is sensitive to direct backscatter from the canopy, and two-way attenuation of the signal as it travels through the canopy. Both mechanisms are affected by the dielectric properties of {the individual elements of the canopy, which are primarily a function of water content.} Leaf water content of corn can...journal article 2016
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Van Emmerik, T.H.M. (author), Dunne, S.C. (author), Judge, J. (author), van de Giesen, N.C. (author)Microwave backscatter from vegetated surfaces is influenced by vegetation structure and vegetation water content (VWC), which varies with meteorological conditions and moisture in the root zone. Radar backscatter observations are used for many vegetation and soil moisture monitoring applications under the assumption that VWC is constant on short...journal article 2014