Results 21 to 30 of about 506,951 (266)

A Comparative Analysis of Remote Sensing Soil Moisture Datasets Fusion Methods: Novel LSTM Approach Versus Widely Used Triple Collocation Technique

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Microwave remote sensing technology has emerged to provide valuable products to monitor and assess soil moisture content at regional or global scales. However, each soil moisture product exhibits different advantages and shortcomings.
Haojin Zhao, Carsten Montzka, Harry Vereecken, Harrie-Jan Hendricks Franssen   +3 more
doaj   +2 more sources

Global-Scale Evaluation of XCO₂ Products from GOSAT, OCO-2 and CarbonTracker Using Direct Comparison and Triple Collocation Method

Remote Sensing, 2022
Triple collocation (TC) shows potential in estimating the errors of various geographical data in the absence of the truth. In this study, the TC techniques are first applied to evaluate the performances of multiple column-averaged dry air CO2 mole ...
Yuanyuan Chen, Jiefeng Cheng, Xiaodong Song, Shuo Liu, Yuan Sun, Dajiang Yu, Shuangxi Fang   +6 more
doaj   +2 more sources

Uncertainty Analysis of Snow Depth Retrieval Products over China via the Triple Collocation Method and Ground-Based Measurements

Remote Sensing
Snow depth is a crucial variable when assessing the hydrological cycle and total water supply. Therefore, thorough and large-scale assessments of the widely used gridded snow depth products are highly important.
Jianwei Yang, Lingmei Jiang, Meiqing Chen, Jiajie Ying   +3 more
doaj   +2 more sources

Different Vegetation Covers Leading to the Uncertainty and Consistency of ET Estimation: A Case Study Assessment with Extended Triple Collocation

Remote Sensing
Accurate and reliable estimation of actual evapotranspiration (AET) is essential for various hydrological studies, including drought prediction, water resource management, and the analysis of atmospheric–terrestrial carbon exchanges. Gridded AET products
Xiaoxiao Li, Huaiwei Sun, Yong Yang, Xunlai Sun, Ming Xiong, Shuo Ouyang, Haichen Li, Hui Qin, Wenxin Zhang   +8 more
doaj   +2 more sources

Multi-Source Daily Precipitation Merging over the Yangtze River Basin Using Triple Collocation

Geosciences
The Yangtze River Basin (YRB) is highly vulnerable to both floods and droughts, with precipitation playing a key role in driving these hydrological extremes.
Jin Wang, Xiaotao Fan, Xinyue Yan, Zhenyong Sun, Gaohong Yin   +4 more
doaj   +2 more sources

True global error maps for SMAP, SMOS, and ASCAT soil moisture data based on machine learning and triple collocation analysis

Remote Sensing of Environment, 2023
Hyunglok Kim, W. Crow, Xiaojun Li, Wolfgang Wagner, S. Hahn, V. Lakshmi   +5 more
semanticscholar   +3 more sources

Triple Collocation Based Multi-Source Precipitation Merging [PDF]

Frontiers in Water, 2020
Multi-source precipitation merging has been used for improving global precipitation estimation accuracy. However, current merging techniques heavily rely on gauge-based precipitation and/or streamflow observations, which may contain substantial uncertainties over data-poor regions.
Jianzhi Dong, Fangni Lei, Lingna Wei
openaire   +1 more source

Triple collocation-based merging of multi-source gridded evapotranspiration data in the Nordic Region

Agricultural and Forest Meteorology, 2023
Xueying Li, Wenxin Zhang, A. Vermeulen, Jianzhi Dong, Zheng Duan   +4 more
semanticscholar   +3 more sources

An improved triple collocation-based integration of multiple gravity anomaly grids from satellite altimetry: Contribution of ICESat-2

Remote Sensing of Environment, 2023
Nengfang Chao, Shuaiqi Wang, Guichong Ouyang, C. Hwang, T. Jin, Chengcheng Zhu, A. Abulaitijiang, Shengjun Zhang, Lianzhe Yue, Gang Chen, Yanze Zhang   +10 more
semanticscholar   +3 more sources

Discovering Optimal Triplets for Assessing the Uncertainties of Satellite-Derived Evapotranspiration Products

Remote Sensing, 2023
Information relating to errors in evapotranspiration (ET) products, including satellite-derived ET products, is critical to their application but often challenging to obtain, with a limited number of flux towers available for the sufficient validation of
Yan He, Chen Wang, Jinghao Hu, Huihui Mao, Zheng Duan, Cixiao Qu, Runkui Li, Mingyu Wang, Xianfeng Song   +8 more
doaj   +1 more source