Results 101 to 110 of about 51,471,999 (204)

A Nine-Year Climatology of Arctic Sea Ice Lead Orientation and Frequency from AMSR-E

Remote Sensing, 2014
We infer the fractional coverage of sea ice leads (as concentration) in the Arctic from Advanced Microwave Scanning Radiometer for Earth Observing System (EOS) (AMSR-E) brightness temperatures.
David Bröhan, Lars Kaleschke
doaj   +1 more source

AMSR-E微波数据反演裸地地表温度算法研究

, 2009
利用AMSR-E被动微波数据,以撒哈拉沙漠地区为研究对象,基于搭载在同一颗卫星上的AMSR-E传感器和MODIS传感器同步观测成像的特点,将MODIS数据反演得到的裸地地表温度产品进行尺度上推,作为AMSR-E像元尺度的地表真实温度,在分析AMSR-E不同通道微波探测值所包含的不同信息特点的基础上,选出反演裸地地表温度较为有效的探测通道,利用多元线性回归的方法,建立经尺度上推后对应AMSR-E尺度的MODIS地表温度与AMSR-E各通道亮温之间的对应关系,从而实现利用AMSR ...
刘曾林, 唐伯惠, 李召良
core  

Vegetation optical depth retrieval from AMSR-E/AMSR2 observations using L-MEB inversion

, 2020
International audienceDecade years of efforts on the retrieval of soil moisture based on radiative transfer model have largely improved the accuracy of soil moisture (SM). This paper focus on the other parameter, namely vegetation optical depth (VOD). We
Xiaojun Li, Brandt, Martin, Rasmus Fensholt, Lei Fan, Fensholt, Rasmus, Sun, Rui, Frappart, Frédéric, Mengjia Wang, Rui Sun, Wang, Mengjia, Jean-Pierre Wigneron, Wigneron, Jean-Pierre, Ciais, Philippe, Fan, Lei, Liu, Yi, Martin Brandt, Xiangzhuo Liu, Li, Xiaojun, Philippe Ciais, Frederic Frappart, Yi Liu, Liu, Xiangzhuo   +21 more
core   +1 more source

Use of AMSR-E microwave satellite data for land surface characteristics and snow cover variation

Data in Brief, 2016
This data article contains data related to the research article entitled “Global land cover classification based on microwave polarization and gradient ratio (MPGR)” [1] and “Microwave polarization and gradient ratio (MPGR) for global land surface ...
Mukesh Singh Boori, Ralph R. Ferraro, Komal Choudhary, Alexander Kupriyanov   +3 more
doaj   +1 more source

An Improved Algorithm for Discriminating Soil Freezing and Thawing Using AMSR-E and AMSR2 Soil Moisture Products

Remote Sensing, 2018
Discriminating between surface soil freeze/thaw states with the use of passive microwave brightness temperature has been an effective approach so far. However, soil moisture has a direct impact on the brightness temperature of passive microwave remote ...
Huiran Gao, Wan-Chang Zhang, Hao Chen
semanticscholar   +1 more source

Assessment of the AMSR-E Sea Ice Concentration Product at the Ice Edge Using RADARSAT-1 and MODIS Imagery

, 2006
Imagery from the C-band synthetic aperture radar (SAR) aboard RADARSAT-1 and the Moderate Resolution Imaging Spectroradiometer (MODIS) was used to evaluate the performance of the Advanced Microwave Scanning Radiometer- EOS (AMSR-E) ice concentration ...
Cavalieri, Donald J., Henrichs, John F., Markus, Thorsten   +2 more
core  

Improving Soil Moisture Estimation with a Dual Ensemble Kalman Smoother by Jointly Assimilating AMSR-E Brightness Temperature and MODIS LST

Remote Sensing, 2017
Uncertainties in model parameters can easily result in systematic differences between model states and observations, which significantly affect the accuracy of soil moisture estimation in data assimilation systems.
Weijing Chen, Huanfeng Shen, Chunlin Huang, Xin Li   +3 more
doaj   +1 more source

Performances of SMOS and AMSR-E soil moisture retrievals against Land Data Assimilation system estimates

, 2014
International audienceThe CATDS Centre (Centre Aval de Traitement des Données) recently released global daily gridded surface soil moisture (SSM) products derived from the SMOS (Soil Moisture and Ocean Salinity) satellite brightness temperatures ...
A. Ducharne, Rosnay, P., De, JEU, R., Ducharne, Agnès, J. Munoz-Sabater, Ahmad, Al Bitar, Kerr, Yann H., P. de Rosnay, A. Al Bitar, Albergel, C., R. de Jeu, ROSNAY, P., Munoz-Sabater, J., Y. Kerr, Wigneron, J., C. Albergel, JP. Wigneron, Govind, A., A. Alyaari, A. Govind, Alyaari, A., Jeu, R., De   +21 more
core   +1 more source

ROBUST ASSESSMENT OF AN OPERATIONAL ALGORITHM FOR THE RETRIEVAL OF SOIL MOISTURE FROM AMSR-E DATA IN CENTRAL ITALY

, 2015
The main purpose of this study is to exploit the potential of AMSR-E sensors for hydrological studies, and in particular, for SMC monitoring at regional scale in heterogeneous environments.In this work, the surface soil moisture (SMC) derived from the ...
Brocca L, Santi E, Pettinato S, Paloscia S, Ciabatta L   +4 more
core  

Assimilating MODIS and AMSR-E Snow Observations in a Snow Evolution Model [PDF]

, 2012
In this paper four simple computationally inexpensive, direct insertion data assimilation schemes are presented, and evaluated, to assimilate Moderate Resolution Imaging Spectroradiometer (MODIS) snow cover, which is a binary observation, and Advanced ...
Miller, Steven D., Liston, Glen E., Fletcher, Steven J., Hiemstra, Christopher A.   +3 more
core