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IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium by Tao, Liangliang (author);Ryu, Dongryeol (author);Western, Andrew (author);Lee, Sun-Gu (author) is a nonfiction available to read on EtoBox.

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KOMPSAT-5 is an X-band satellite that has a great potential for high-resolution soil moisture retrieval over agricultural regions. In the present paper, comparison between the soil moisture estimations from the widely used Sentinel-1 (Cband) and KOMPSAT-5 (X-band) is conducted for a dryland wheat field site located in Victoria State of Australia. This study uses a semi-empirical vegetation scattering model to invert radar signal and retrieve soil moisture based on KOMPSAT-5 and Sentinel-1 images and the retrieval model is calibrated by field measurements. In this model, normalized difference water index (NDWI) is applied for the parameterization of vegetation water content and the estimation of volume scattering from vegetation canopy. The results demonstrated that the accuracy of soil moisture retrieved from both satellite instruments was consistent with the field measurements, with the root mean square error (RMSE) reached 0.016 cm 3 /cm 3 at X-band and 0.015 cm 3 /cm 3 at C-band, and the correlation coefficients (R) were 0.726 and 0.517, respectively. In addition, the validating results showed that the X-band provided slightly consistent accurate soil moisture retrieval in compa

Who reads IGARSS 2020 - 2020 IEEE International Geoscience and Remote Sensing Symposium?

Author

Tao, Liangliang (author);Ryu, Dongryeol (author);Western, Andrew (author);Lee, Sun-Gu (author)

Publisher

IEEE

Published

2020

Language

EN

Category

nonfiction