Operational 500 m surface soil moisture product using EOS-04 C-band SAR over Indian agricultural croplands

Pandey, DK and Srivastava, PK and Dave, R and Setia, RK and Ompal, A and Sinha, R and Sekhar, M and Parmar, M and Gupta, S and Putrevu, D and Mehra, R and Ramanujam, V and Bhattacharya, BK and Kumar, R (2024) Operational 500 m surface soil moisture product using EOS-04 C-band SAR over Indian agricultural croplands. In: Current Science, 126 (9). pp. 1061-1068.

PDF Cur_sci_126_9_2024.pdf - Published Version Restricted to Registered users only Download (4MB) | Request a copy

Abstract

Surface soil moisture (SSM) at high spatial resolution is an essential land parameter for agricultural applications like irrigation mapping, scheduling, crop water stress assessment, etc. However, available satellite derived soil moisture products are inadequate for meeting the requirements of agricultural applications due to coarse scale soil moisture (~10�40 km). In this article, we developed an operational framework for first of its kind sub-km (~500 m) operational soil moisture product over India by utilizing ISRO�s EOS-04 C-band synthetic aperture radar (SAR) data based on active-passive approach. The potential of EOS-04 SAR for sub-km scale is demonstrated and tested over major cropland sites covering highly heterogeneous and dynamic crop conditions in different agro-climatic regions over India which shows a good agreement with in situ datasets with mean ubRMSE, ranging from 0.051 to 0.078 m3/m3. © (2024), (Indian Academy of Sciences). All rights reserved.

Item Type:	Journal Article
Publication:	Current Science
Publisher:	Indian Academy of Sciences
Additional Information:	The copyright for this article belongs to Indian Academy of Sciences.
Keywords:	Crops; Mapping; Soil surveys; Synthetic aperture radar, Active/passive; C-bands; Crop condition; Crop water stress; EOS-04 synthetic aperture radar; High spatial resolution; Radar data; Soil moisture active and passive; Stress assessment; Surface soil moisture, Soil moisture
Department/Centre:	Division of Mechanical Sciences > Civil Engineering
Date Deposited:	03 Jun 2024 07:10
Last Modified:	03 Jun 2024 07:10
URI:	https://eprints.iisc.ac.in/id/eprint/85134

Actions (login required)

View Item