搜索结果: 1-15 共查到“测绘科学技术 AMSR-E”相关记录25条 . 查询时间(0.265 秒)
Diurnal Difference Vegetation Water Content (ddVWC) of Advance Microwave Scanning Radiometer-Earth Observing System (AMSR-E) for assessment of crop water stress at regional level
AMSR-E Vegetation water content Diurnal Difference Crop water stress
2014/12/15
Advance Microwave Scanning Radiometer – Earth Observing System (AMSR-E) derived Vegetation Water Content (VWC) at predawn (01:30 LST, descending pass) and afternoon (13:30 LST; ascending pass) were us...
准确及时地掌握雪情参数及其动态变化是雪灾监测与灾情评价的基础。提出了一套基于MODIS与AMSR-E遥感传感器数据的雪情参数快速提取方案。利用MODIS反射率数据与AMSR-E亮温数据,反演了新疆2010年1月初的积雪范围与积雪深度。结果表明:利用MODIS与AMSR-E数据的协同反演策略能够有效去除云层对积雪识别的影响,弥补因云层造成的地表信息缺失;同时保持较高的空间分辨率,提高雪情参数的识别精...
基于MODIS和AMSR-E遥感数据的土壤水分降尺度研究
滑坡灾害 敏感性 Logistic回归 影响因子 Kappa值 ROC曲线
2013/9/2
针对兰州市脆弱的地质环境和频繁发生的滑坡灾害，以兰州市为研究区，采用Logistic回归模型，以ArcMap和SPSS软件为工具，选取地层岩性、地貌、坡度、断层构造、植覆盖度、7-9月平均降水、道路等作为滑坡灾害影响因子。首先对每个影响因子分级并计算每个因子指标值，然后在Arcmap 中对影响因子图层进行叠加操作，最后在SPSS软件中运用Logistic回归方法，计算出每个影响因子的系数值并建立L...
Preface of special issue on GLI and AMSR。
AMSR-E微波极化指数与MODIS植被指数关系研究
AMSR-E MODIS 微波极化指数（MPI） 叶面积指数（LAI）
2009/11/24
首先，利用辐射传输方程对微波极化指数（MPI，Microwave Polarization Index)进行推导，以AMSR-E像元经纬度为控制条件，采集与之对应的MODIS植被指数（ LAI/NDVI），并将其平均值作为AMSR-E对应像元的值； 然后，对AMSR-E微波极化指数与LAI/NDVI进行相关分析。结果表明，MPI与LAI/NDVI之间存在着指数关系，而且频率越低，相关性越好。
用被动微波AMSR数据反演地表温度及发射率的方法研究
亮度温度 地表温度 AMSR
2009/11/20
针对对地观测卫星多传感器的特点，提出了借助MODIS地表温度产品从被动微波数据中反演地表温度的方法。即利用MODIS地表温度产品和AMSR不同通道之间的亮度温度，建立地表温度的反演方程。该方法克服了以往需要测量同步数据的困难，为不同传感器之间的参数反演相互校正和综合利用多传感器的数据提供实际应用和理论依据。文中以MODIS地表温度产品作为评价标准，对方法进行检验，其平均误差为2~3℃。另外，微波的...
Validation of Sea Ice Drift Vector Extraction From AMSR-E and SSM/I Data by Using MODIS Data
passive microwave radiometer Aqua template matching motion tracking
2010/11/23
Sea ice drift vectors extracted from satellite passive microwave sensors data are widely used today. However, the validation of which has not been done much so far. In this study, the sea ice drift ve...
Improvement of the AMSR-E Algorithm for Soil Moisture Estimation by Introducing a Fractional Vegetation Coverage Dataset Derived from MODIS Data
AMSR-E soil moisture fractional vegetation coverage MODIS
2010/11/24
Soil moisture is an important component of the hydrology of land surfaces. Accurate monitoring of soil moisture is essential in understanding energy and water cycles and ecological system processes. M...
Development of a Physically-based Soil Moisture Retrieval Algorithm for Spaceborne Passive Microwave Radiometers and its Application to AMSR-E
Passive Microwave Remote Sensin AMSR-E Soil Moisture Retrieval Radiative Transfer Model Lookup Table
2010/11/23
Many microwave radiometer algorithms for the retrieval of soil moisture tend to overestimate moisture in very dry cases, partly due to volume scattering effects. This study reports the development of ...
Enhanced Sea Ice Concentrations and Ice Extents from AMSR-E Data
sea ice concentration algorithm extent
2010/11/23
Much of what we know about the large scale characteristics of the sea ice cover has been inferred from results of analysis of passive microwave data, the latest of which comes from the Advanced Microw...
Wind Speed and Latent Heat Flux Retrieved by Simultaneous Observation of Multiple Geophysical Parameters by AMSR-E
AMSR-E Latent heat flux wind speed relative wind direction microwave radiometer
2010/11/23
Wind speed and Latent heat flux derived by Advanced Microwave Scanning Radiometer (AMSR) for Earth Observing System (AMSR-E) on Aqua are validated using the tropical and the mid-latitude Pacific surfa...
Near-Global Scale Retrieval of the Optical and Microphysical Properties of Clouds from Midori-II GLI and AMSR Data
ADEOS-II Global Imager (GLI) AMSR Cloud Properties Climate Change
2010/11/23
Various optical and microphysical properties of warm water-phase clouds as retrieved from the GLI and AMSR global datasets are presented. The results indicate that the retrieved effective particle rad...
AMSR Milestones in Observations by Satellite-Borne Passive Microwave Radiometers
AMSR ADEOS-II AQUA SST SOIL
2010/11/23
The Advanced Microwave Scanning Radiometer (AMSR) manufactured by the Japan Aerospace Exploration Agency (JAXA) is a successor of MSR aboard the Marine Observation Satellite-1 (MOS-1) launched in 1987...
Overview of GLI·AMSR and its Future Perspective
ADEOS-II GLI AMSR AMSR-E satellite remote sensing
2010/11/23
The Global Imager (GLI) and the Advanced Microwave Scanning Radiometer (AMSR) are the core mission instruments developed by the National Space Development Agency of Japan (NASDA), currently the Japan ...
AMSR-E Geolocation and Validation of Sea Ice Concentrations Based on 89GHz Data
AMSR-E Microwave Geolocation Sea ice Validation
2010/11/23
Sea ice concentrations based on AMSR-E 89GHz data are unprecedented in combining data timeliness (about 6 hours after overflight), horizontal resolution (about 5km) and daily global coverage. Here the...