Soil moisture estimates at high spatial and temporal resolution are of great value for optimizing water and agricultural management. To fill the gap between local ground observations and coarse spatial resolution remote sensing products we use SMAP and Sentinel-1 data together with ...
SMAP L-band brightness temperatures and Copernicus Sentinel-1 C-band backscatter coefficients are used to derive soil moisture data, which are then resampled to an Earth-fixed, cylindrical 3 km Equal-Area Scalable Earth Grid, Version 2.0 (EASE-Grid 2.0)....
计划中,雷达和辐射计各自生产3km和36km的土壤水分产品,并协同生产9km的土壤水分产品。可惜,L波段的雷达当年的7月份(2015年7月7日)就出现了故障,目前SMAP上只有L波段辐射计在孤独地观测着地球。不过,已经有人在研究将SMAP的L波段辐射计数据与欧空局Sentinel的C波段雷达数据结合反演土壤水分,时间分辨率降低了(3天→...
At the SMOS/SMAP radiometer scale of ~ 40 km, the presence of water bodies potentially induces an overestimation of retrieved soil moisture, if not ... N.,Ye,P J.,... - 《Remote Sensing of Environment》 被引量: 19发表: 2015年 Evaluation of SMOS, SMAP, ASCAT and Sentinel-1 Soil Mo...
E-mail: leifan33@swu.edu.cn Jean-Pierre Wigneron教授带领西南大学樊磊教授团队和刘向茁、王梦佳、马宏亮和王欢博士研究生,研究领域包括主动 (ASCAT和Sentinel)、被动(AMSR-E/2、SMOS和SMAP)微波遥感土壤水分和植被光学厚度算法、水文气象和植被...
SMAP project released a new enhanced high-resolution (3km) soil moisture active-passive product. This product is obtained by combining the SMAP radiometer data and the Sentinel-1A and -1B Synthetic Aperture Radar (SAR) data. The approach used for this product draws heavily from the heritage ...
has a 36-km spatial resolution (or 9 km via the resampled SMAP L3 Enhanced23,26product). Combining such passive sensors with a active sensor (e.g., Sentinel-1) and/or assimilating them into physical models can provide estimates with a 1–3-km27,28and 9–25-km29,30,31,32spatial ...
SPL2SMAP_SSMAP/Sentinel-1 Radiometer/Radar Soil Moisture3 km SPL3FTARadar Northern Hemisphere Daily Freeze/Thaw State3 km SPL3SMARadar Global Daily Soil Moisture3 km SPL3SMPRadiometer Global Soil Moisture36 km SPL3SMAPRadar/Radiometer Global Soil Moisture9 km ...
In this study, the irrigation detection ability of SMAP enhanced 9 km and SMAP-Sentinel 1 (SMAP-S1), 3 km and 1 km soil moisture products are evaluated using the first moment (mean) and the second moment (variability) of soil moisture data. The SMAP enhanced 9 km soil moisture product ...
Joint Sentinel-1 and SMAP data assimilation to improve soil moisture estimates. Geophysical Research Letters, 44, 6145-6153. https://doi.org/10.1002/2017GL073904Lievens, H.; Reichle, R.H.; Liu, Q.; De Lannoy, G.J.M.; Dunbar, R.S.; Kim, S.B.; Das, N.N.; Cosh, M.; Walker...