首页|A review of the BuFeng-1 GNSS-R mission:calibration and validation results of sea surface and land surface

A review of the BuFeng-1 GNSS-R mission:calibration and validation results of sea surface and land surface

扫码查看
原文链接
  • NETL
  • NSTL
  • 万方数据
In this paper,we will conclude the results of Bufeng-1(BF-1)A/B data processing,calibration workflow,and validation of the calibrated sea surface winds,land surface soil moisture,and sea surface height measurements.Since 2019,the BF-1 mission has operated in-orbit for over 4 years.The Earth reflected delay Doppler maps(DDMs)are continuously collected to perform global sea surface and land observations.At the same time,the intermediate frequency(IF)raw data are also obtained for 12 seconds every pass in diagnostic mode.To begin with,a brief description of the spaceborne Global Navigation Satellite System Reflectometry(GNSS-R)technique will be provided in the introduction.Next,we will present the overview of Chinese BF-1 mission and the data specifications used in our research.In the next section,the BF-1 mission-related spaceborne power calibration and validation are presented to show the sup-port to power DDM observable production for sea surface and land surface applications.Then,the status of Chinese Beidou System(BDS)Equivalent Isotropic Radiated Power(EIRP)acquisi-tion programme is then introduced.Furthermore,the latest sea surface height(SSH)measure-ments results including two modes(group delay and carrier phase)and wind speed derivation based on machine learning(ML)method will be spatial-temporal aligned and validated with auxiliary datasets including Denmark Technology University(DTU)mean sea surface(MSS)products and European Centre for Medium-Range Weather Forecasts(ECMWF)ERA5 reanalysis.The previous published results of sea surface winds retrieval under Hurricane conditions and soil moisture retrieval are also reviewed for the BF-1 mission applications.Finally,the conclu-sion of BF-1 derived results will be discussed to draw out ongoing/future works.

Global Navigation Satellite System-Reflectometry(GNSS-R)Delay-Doppler Map(DDM)sea surface height(SSH)soil moisturesea surface wind speedBufeng-1Immediate Frequency(IF)

Cheng Jing、Weiqiang Li、Wei Wan、Feng Lu、Xinliang Niu、Xiuwan Chen、Antonio Rius、Estel Cardellach、Semi Ribó、Baojian Liu、Zhizhou Guo、Yang Nan

展开 >

National Key Laboratory of Science and Technology on Space Microwave,China Academy of Space Technology(Xi'an),Xi'an,China

Xi'an Institute of Space Radio Technology,China Academy of Space Technology(Xi'an),Xi'an,China

Institute of Space Sciences,Spanish National Research Council(ICE,CSIC),Cerdanyola del Vallès,Spain

Department of Earth Observation,Institut d'Estudis Espacials de Catalunya,Barcelona,Spain

The Institute of Remote Sensing and Geographic Information System(IRSGIS),Peking University,Beijing,China

The National Satellite Meteorological Center(NSMC),China Meteorological Administration(CMA),Beijing,China

School of Soil and Water Conservation,Beijing Forestry University,Beijing,China

School of Marine Science and Technology,Tianjin University,Tianjin,China

展开 >

2024

10.1080/10095020.2024.2330547

地球空间信息科学学报(英文版)
武汉大学（原武汉测绘科技大学）

地球空间信息科学学报(英文版)

影响因子：0.207
ISSN：1009-5020
年,卷(期)：2024.27(3)