同时也可以在Worldview浏览SMAP 数据。各个级别数据下载地方如下所示。 Level 1 radar data:ASF DAAC Level 1 TB and Level 2-4 products:NSIDC DAAC 2 SMAP(Soil Moisture Active and Passive)数据下载 下载数据之前,首先需要注册一个NASA的Earth Data账号。账号可以登录NASA绝大多数的数据产品网站,下载NASA绝大...
SMAP(Soil Moisture Active and Passive)卫星数据下载 SMAP(Soil Moisture Active and Passive) 是美国的地球观测卫星之一,2015年1月31日发射升空。从名字就可以知道,SMAP主要为了观测土壤水分,并且有主动的传感器和被动的传感器。主动的传感器是L波段雷达,被动的传感器是L波段微波辐射计。计划中,雷达和辐射计各自生产3...
Data Assimilation of SMAP Soil Moisture in a 3-km Regional ModelBlankenship, Clay BCase, Jonathan LZavodsky, Bradley T
The NASA SMAP (Soil Moisture Active Passive) missi Cosh,Michael,H.,... - 《Remote Sensing of Environment An Interdisciplinary Journal》 被引量: 12发表: 2017年 Soil moisture retrieval using L-band time-series SAR data from the SMAPVEX12 experiment The algorithms for retrieving soil moisture con...
Coastal Plain, where SMAP can capture the timing of wetting events better than model-only estimates. This implies that at these locations SMAP contributes significantly to improve deficiencies in the precipitation data or in the way the model translates precipitation into soil moisture. However, SMAP...
The NASA-USDA Enhanced SMAP Global soil moisture data provides soil moisture information across the globe at 10-km spatial resolution. This dataset includes: surface and subsurface soil moisture (mm), soil moisture profile (%), surface and subsurface soil moisture anomalies (-). ...
2. Data description 2.1. SMAP soil moisture data The coarse resolution L-band MW SSM product from SMAP-Passive (SMAP-P) was used as an input to the disaggregation algorithm. Whereas the intermediate [9-km SMAP-Active/Passive (AP) and SMAP-Enhanced (E)] and fine [3-km SMAP-Active (A...
The goal of this study is to evaluate the capability of level 3 soil moisture estimates obtained from the Soil Moisture Active Passive (SMAP) mission particularly for drought monitoring over rangelands. However, due to the limited (nine months) and preliminary nature of the SMAP data, this paper...
The aim of this paper was to test the capabilities of the Sentinel-1 radar data in downscaling Soil Moisture Active Passive (SMAP) radiometer data for high-resolution soil moisture estimation. Three different active-passive downscaling algorithms, including the brightness temperature-based downscaling al...
If more than one file has been downloaded and passed into the first argument, extract_smap extracts data for each file sm_raster <- extract_smap(downloads, "Soil_Moisture_Retrieval_Data/soil_moisture") plot(sm_raster, main = "Level 3 soil moisture: May 25, 2015") The path “Soil_...