The minimum brightness temperature (mBT) of seawater in the polar region is an important parameter algorithms for determining sea ice concentration or snow depth. To estimate mBT at 6.925 GHz Arctic and Antarctic Oceans to find their physical characteristics, we collected data from Advanced Microwave Scanning Radiometer 2 (AMSR2) eight years 2012 2020. estimated shows constant annual values, bu...

In this paper, we implemented the in-situ observation of surface soil moisture (SSM), vegetation water content (VWC), and microwave brightness temperatures. By analyzing this in-situ observation dataset and the numerical simulation, we investigated the source of the uncertainty of the current algorithms for Advanced Microwave Scanning Radiometer for Earth observation system (AMSR-E) and AMSR2 t...

The scale difference between point in situ soil moisture measurements and low resolution satellite products limits the quality of any validation efforts in heterogeneous regions. Cosmic Ray Neutron Probes (CRNP) could be an option to fill the scale gap between both systems, as they provide area-average soil moisture within a 150–250 m radius footprint. In this study, we evaluate differences and...

A method using a nonlinear auto-regressive neural network with exogenous input (NARXnn) to retrieve time series soil moisture (SM) that is spatially and temporally continuous and high quality over the Heihe River Basin (HRB) in China was investigated in this study. The input training data consisted of the X-band dual polarization brightness temperature (TB) and the Ka-band V polarization TB fro...

In recent years, much attention has been paid to the behavior of passive microwave sea ice concentration (SIC) products for marginal ice zones. Based on the definition of ice edges from ship observations, we identified pseudo-ship observations (PSO) and generated PSO ice edges from twelve cloud-free moderate-resolution imaging spectroradiometer (MODIS) images. Two SIC products of the advanced m...

Abstract Previous studies showed that conical scanning radiometers greatly outperform cross-track for precipitation retrieval over ocean. This study demonstrates a novel approach to improve rates at the radiometers’ observation time by propagating retrievals time. The improved rate is weighted average of original and propagated from radiometer. include Advanced Technology Microwave Sounder (ATM...

Based on the optimal interpolation (OI) algorithm, a daily fusion product of high-resolution global ocean columnar atmospheric water vapor with resolution 0.25° was generated in this study from multisource remote sensing observations. The covers period 2003 to 2018, and data represent microwave radiometer observations, including those Special Sensor Microwave Imager Sounder (SSMIS), WindSat, Ad...