Title
Initial Evaluation of the First Chinese GNSS-R Mission BuFeng-1 A/B for Soil Moisture Estimation
Abstract
As a pilot mission for the Chinese global navigation satellite system reflectometry (GNSS-R) constellation, the BuFeng-1 (BF-1) twin satellites A/B were launched on June 5th, 2019. Using three-month of sample data, this study presents the first evaluation of this mission for soil moisture (SM) estimations. The results show that the surface reflectivity (SR) derived from BF-1 bistatic radar cross section (BRCS) correlates well with the SM active passive (SMAP) SM (mean R = 0.85), and the resulting BF-1 SM shows good correlation with the SMAP SM [R = 0.94 and root mean square deviation (RMSD) = 0.029] and the in situ measurements (R = 0.77 and RMSD = 0.049). The evaluation provides supportive information for the production and release of the new version of BF-1 Level 1 data and for the development of new algorithms to retrieve SM using data of this mission.
Year
DOI
Venue
2022
10.1109/LGRS.2021.3097003
IEEE GEOSCIENCE AND REMOTE SENSING LETTERS
Keywords
DocType
Volume
Satellite broadcasting, Correlation, Estimation, Land surface, Satellites, Spaceborne radar, Soil moisture, BuFeng-1 (BF-1), cyclone global navigation satellite system (CYGNSS), global navigation satellite system-reflectometry (GNSS-R), soil moisture (SM)
Journal
19
ISSN
Citations 
PageRank 
1545-598X
0
0.34
References 
Authors
0
12
Name
Order
Citations
PageRank
W. Wan100.34
Baojian Liu215.10
Z. Guo300.34
F. Lu400.34
X. Niu500.34
H. Li600.34
R. Ji700.34
J. Cheng800.34
Cecilia Li-Tsang911.07
Xiuwan Chen103318.04
Jun Yang1163.59
Z. Bai1200.34