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3km和36km的土壤水分产品,并协同生产9km的土壤水分产品。
Results indicate that there is no relationship between the Soil Moisture Active Passive (SMAP) Level-2 passive soil moisture product and the upscaled in situ measurements. Additionally, there is very low correlation between modeled brightness temperature using the Community Microwave Emission Model and ...
1 SMAP(Soil Moisture Active and Passive)数据介绍 SMAP baseline science data products在下面的表格中展示,这些数据产品可以从两个NASA设计的数据中心下载,Alaska Satellite Facility(ASF) andNational Snow and Ice Data Center(NSIDC). ASF专门提供SAR 数据,NISDC专门提供冰冻圈科学与陆地微波数据。同时也可以在Worl...
This paper examines the performance of eight satellite-based soil moisture products, including the Soil Moisture Active Passive (SMAP) passive Level 3 (L3), the Soil Moisture and Ocean Salinity (SMOS) Centre Aval de Traitement des Donn茅es SMOS (CATDS) L3, the Japan Aerospace Exploration Agency...
smapmoisturemissionsoilpassiveactive SMAPCal/Val T.J.Jackson USDAARSHydrologyandRemoteSensingLab December11,2012 •SoilMoistureSatelliteMissions:Past,Presentand Future •SMAP –Mission –Cal/Val •SparseNetworksinCal/Val •ChallengestousingCOSMOS Outline 100km10km1km Day Week Month ClimateClimateAppli...
Like a cowboy at a rodeo, NASA's newest Earth-observing satellite, the Soil Moisture Active Passive (SMAP), has triumphantly raised its "arm" and unfurled a huge golden "lasso" (antenna) that it will soon spin up to rope the best soil moisture maps ever obtained from space. ...
IEEETRANSACTIONSONGEOSCIENCEANDREMOTESENSING,VOL.54,NO.8,AUGUST20164929APreliminaryEvaluationoftheSMAPRadiometerSoilMoistureProductOverUnitedStatesandEuropeUsingGround-BasedMeasurementsJiangyuanZeng,Member,IEEE,Kun-ShanChen,Fellow,IEEE,HaiyunBi,andQuanChenAbstract—TheSoilMoistureActivePassive(SMAP)mission,whichisthe...
The dataset is generated by integrating satellite-derived Soil Moisture Active Passive (SMAP) Level 3 soil moisture observations into the modified two-layer Palmer model using a 1-D Ensemble Kalman Filter (EnKF) data assimilation approach. Soil moisture anomalies were computed from the climatology of...
The dataset is generated by integrating satellite-derived Soil Moisture Active Passive (SMAP) Level 3 soil moisture observations into the modified two-layer Palmer model using a 1-D Ensemble Kalman Filter (EnKF) data assimilation approach. Soil moisture anomalies were computed from the climatology of...
1.?? 引言 SMAP(Soil Moisture Active and Passive)卫星总体目标任务是以相对较高的空间分辨率、敏感度、覆盖能力及重访周期等方面实现监测全球土壤湿度。SMAP卫星搭载了工作频率为1.41 GHz的L波段的微波辐射计,因其工作频段和仪器设计特点,目前也广泛应用于海表盐度卫星遥感观测,是继SMOS和Aquarius卫星之后,第3颗用于...