Uncertainty in Soil Moisture Retrievals: an Ensemble Approach using SMOS L-Band Microwave Data [0.03%]
基于SMOS L波段微波资料的土壤湿度反演不确定性分析：集合同化方法的研究
Jan Quets,Gabriëlle J M De Lannoy,Amen Al Yaari et al.
Jan Quets et al.
The uncertainty of surface soil moisture (SM) retrievals from satellite brightness temperature (TB) observations depends primarily on the choice of radiative transfer model (RTM) parameters, prior SM information and TB inputs. This paper st...
Impacts of snow and cloud covers on satellite-derived PM2.5 levels [0.03%]
雪被和云对卫星气溶胶产品及PM2.5估算的影响：以MODIS产品为例
Jianzhao Bi,Jessica H Belle,Yujie Wang et al.
Jianzhao Bi et al.
Satellite aerosol optical depth (AOD) has been widely employed to evaluate ground fine particle (PM2.5) levels, whereas snow/cloud covers often lead to a large proportion of non-random missing AOD values. As a result, the fully covered and ...
Thematic accuracy assessment of the 2011 National Land Cover Database (NLCD) [0.03%]
2011年国家土地覆盖数据库（NLCD）的主题精度评价
James Wickham,Stephen V Stehman,Leila Gass et al.
James Wickham et al.
Accuracy assessment is a standard protocol of National Land Cover Database (NLCD) mapping. Here we report agreement statistics between map and reference labels for NLCD 2011, which includes land cover for ca. 2001, ca. 2006, and ca. 2011. T...
Global relationships among traditional reflectance vegetation indices (NDVI and NDII), evapotranspiration (ET), and soil moisture variability on weekly timescales [0.03%]
基于遥感反射率的植被指数（包括NDVI和NDII）与蒸散发和土壤湿度的全球关系——一周时间尺度上的分析
Joanna Joiner,Yasuko Yoshida,Martha Anderson et al.
Joanna Joiner et al.
Monitoring the effects of water availability on vegetation globally using satellites is important for applications such as drought early warning, precision agriculture, and food security as well as for more broadly understanding relationshi...
Performance of Landsat 8 Operational Land Imager for Mapping Ice Sheet Velocity [0.03%]
利用Landsat 8 Operational陆地成像仪绘制冰川速度地图的性能研究
Seongsu Jeong,Ian M Howat
Seongsu Jeong
Landsat imagery has long been used to measure glacier and ice sheet surface velocity, and this application has increased with increased length and accessibility of the archive. The radiometric characteristics of Landsat sensors, however, ha...
Chlorophyll content estimation in an open-canopy conifer forest with Sentinel-2A and hyperspectral imagery in the context of forest decline [0.03%]
基于Sentinel-2A和高光谱影像的针叶林冠 chlorophyll含量估算——以森林衰败为背景研究案例
P J Zarco-Tejada,A Hornero,P S A Beck et al.
P J Zarco-Tejada et al.
With the advent of Sentinel-2, it is now possible to generate large-scale chlorophyll content maps with unprecedented spatial and temporal resolution, suitable for monitoring ecological processes such as vegetative stress and/or decline. Ho...
Near real-time vegetation anomaly detection with MODIS NDVI: Timeliness vs. accuracy and effect of anomaly computation options [0.03%]
基于MODIS NDVI的近实时植被异常检测：时效性与精度及异常计算选项的影响分析
Michele Meroni,Dominique Fasbender,Felix Rembold et al.
Michele Meroni et al.
For food crises early warning purposes, coarse spatial resolution NDVI data are widely used to monitor vegetation conditions in near real-time (NRT). Different types of NDVI anomalies are typically employed to assess the current state of cr...
A stratified random sampling design in space and time for regional to global scale burned area product validation [0.03%]
一种用于区域到全球尺度火烧迹地产品验证的时空分层随机抽样方案
Luigi Boschetti,Stephen V Stehman,David P Roy
Luigi Boschetti
The potential research, policy and management applications of global burned area products place a high priority on rigorous, quantitative assessment of their accuracy. Such an assessment can be achieved by implementing validation methods em...
The Collection 6 MODIS burned area mapping algorithm and product [0.03%]
第六版基于MODIS的Collection 6烧蚀面积制图算法及产品
Louis Giglio,Luigi Boschetti,David P Roy et al.
Louis Giglio et al.
The two Moderate Resolution Imaging Spectroradiometer (MODIS) instruments on-board NASA's Terra and Aqua satellites have provided nearly two decades of global fire data. Here, we describe refinements made to the 500-m global burned area map...
The collection 6 MODIS active fire detection algorithm and fire products [0.03%]
一种MODIS活跃火灾检测算法及火产品集
Louis Giglio,Wilfrid Schroeder,Christopher O Justice
Louis Giglio
The two Moderate Resolution Imaging Spectroradiometer (MODIS) instruments, on-board NASA's Terra and Aqua satellites, have provided more than a decade of global fire data. Here we describe improvements made to the fire detection algorithm a...