Root zone soil moisture profile retrieval using combined L-band and P-band radiometry

Foad Brakhasi, Jeffrey P. Walker, Nan Ye, Xiaoling Wu, Xiaoji Shen, In Young Yeo, Nithyapriya Boopathi

Research output: Chapter in Book/Report/Conference proceedingConference PaperOther


Root zone soil moisture and its distribution throughout the profile play an important role in agricultural productivity and drought monitoring. An inversion scheme including the stratified coherent models of Njoku and Wilheit were employed to retrieve the daily soil moisture profile at 6 AM from simulated L-band and P-band radiometry observations for April 2019 in Cora Lynn, Victoria, Australia. Different levels of noise up to 4 K were imposed in this synthetic study. The average RMSE of retrieved soil moisture at the surface, middle, and bottom (60 cm) of the profile for the Njoku (Wilheit) model were 0.01 (0.04), 0.04 (0.06), and 0.05 (0.07) (all in m3/m3) when a second-order polynomial function was considered as the representative of the soil moisture profile.

Original languageEnglish
Title of host publicationIGARSS 2022 - 2022 IEEE International Geoscience and Remote Sensing Symposium
PublisherIEEE, Institute of Electrical and Electronics Engineers
Number of pages4
ISBN (Electronic)9781665427920
Publication statusPublished - 2022
EventIEEE International Geoscience and Remote Sensing Symposium 2022 - Kuala Lumpur, Malaysia
Duration: 17 Jul 202222 Jul 2022 (Proceedings)

Publication series

NameInternational Geoscience and Remote Sensing Symposium (IGARSS)


ConferenceIEEE International Geoscience and Remote Sensing Symposium 2022
Abbreviated titleIGARSS 2022
CityKuala Lumpur
Internet address


  • coherent
  • mathematical function
  • P-band
  • passive microwave
  • Soil moisture

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