Results 1 to 10 of about 1,321 (143)

Retrieval of Soil Moisture from FengYun-3D Microwave Radiation Imager Operational and Recalibrated Data Using Random Forest Regression

Atmosphere, 2022
Three Microwave Radiation Imagers (MWRI) were carried onboard the FengYun-3B/C/D satellites and have collected more than 10 years of data since 2010. To create a robust climate quality of data, MWRI level one data were reprocessed with new calibration ...
Chuanwen Wei, Fuzhong Weng, Shengli Wu, Dongli Wu, Peng Zhang   +4 more
doaj   +6 more sources

A global daily soil moisture dataset derived from Chinese FengYun Microwave Radiation Imager (MWRI)(2010–2019) [PDF]

Scientific Data, 2023
Surface soil moisture (SSM) is an important variable in drought monitoring, floods predicting, weather forecasting, etc. and plays a critical role in water and heat exchanges between land and atmosphere. SSM products from L-band observations, such as the
Panpan Yao, Hui Lu, Tianjie Zhao, Shengli Wu, Zhiqing Peng, Michael H. Cosh, Li Jia, Kun Yang, Peng Zhang, Jiancheng Shi   +9 more
doaj   +2 more sources

Surface Properties of Global Land Surface Microwave Emissivity Derived from FY-3D/MWRI Measurements [PDF]

Sensors, 2023
Land surface microwave emissivity is crucial to the accurate retrieval of surface and atmospheric parameters and the assimilation of microwave data into numerical models over land. The microwave radiation imager (MWRI) sensors aboard on Chinese FengYun-3
Ronghan Xu, Zharong Pan, Yang Han, Wei Zheng, Shengli Wu   +4 more
doaj   +2 more sources

Spatial Resolution Enhancement of Microwave Radiation Imager (MWRI) Data

Remote Sensing
A spaceborne microwave radiometer has a low spatial resolution limited by its antenna size. Enhancing the spatial resolution of data acquired by such sensors can improve the quality of subsequent applications.
Yihong Bai, Zhaojun Zheng, Jie Shen, Na Xu, Guangzhen Cao, Hongyi Xiao   +5 more
doaj   +2 more sources

In-Orbit Calibration of FengYun-3C Microwave Radiation Imager: Characterization of Backlobe Intrusion for the Hot-Load Reflector

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2021
This study presents a correction algorithm to remove the backlobe intrusion from the hot-load reflector of microwave radiation imager (MWRI) on-board China FengYun-3C (FY-3C) meteorological satellite.
Xinxin Xie, Wanting Meng, Kesong Dong, Songyan Gu, Xue Li   +4 more
doaj   +3 more sources

Estimation of IFOV Inter-Channel Deviation for Microwave Radiation Imager Onboard FY-3G Satellite

Remote Sensing
The Microwave Radiation Imager (MWRI) onboard the FengYun satellite plays a crucial role in global change monitoring and numerical weather prediction. Estimating and correcting geolocation errors are important to retrieving accurate geophysical variables.
Pengjuan Yao, Shengli Wu, Yang Guo, Jian Shang, Kesong Dong, Weiwei Xu, Jiachen Wang   +6 more
doaj   +3 more sources

Simulations of Microwave Land Surface Emissivity Using FengYun-3D Microwave Radiation Imager Data: A Case in the Tibetan Plateau

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Accurate information on microwave land surface emissivity (MLSE) is important for satellite data assimilation. In this article, a new random forest (RF) algorithm is developed for retrieving MLSE under all-sky conditions.
Yonghong Liu, Fuzhong Weng, Fei Tang, Rui Li, Yongming Xu, Yang Han, Jun Yang, Qingyang Liu   +7 more
doaj   +2 more sources

A Multivariable Approach for Estimating Soil Moisture from Microwave Radiation Imager (MWRI)

Journal of Meteorological Research, 2020
Accurate measurements of soil moisture are beneficial to our understanding of hydrological processes in the earth system. A multivariable approach using the random forest (RF) machine learning technique is proposed to estimate the soil moisture from Microwave Radiation Imager (MWRI) onboard Fengyun-3C satellite. In this study, Soil Moisture Operational
Fuzhong Weng
exaly   +3 more sources

Identification and Correction for Sun Glint Contamination in Microwave Radiation Imager-Rainfall Mission Global Ocean Observations Onboard the FY-3G Satellite

Atmosphere
Microwave radiometers are vital for global ocean observations, yet they are prone to errors from radio frequency interference, sun glint, and other contamination.
Qiumeng Xue, Xuanyuan Yang, Qiang Zhang, Zhenxing Liu   +3 more
doaj   +3 more sources

A Spatial Resolution Enhancement Method of Microwave Radiation Imager Data Based on Data Matching and Transformer

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
The microwave radiation imager (MWRI) onboard the Fengyun-3D satellite can provide valuable observation data in many fields such as meteorological research and weather forecasting. However, its coarse spatial resolution limits data application. Recently,
Zhou Zhang, Zhenzhan Wang, Xiaolin Tong
doaj   +3 more sources