Results 11 to 20 of about 388 (206)

SMCR: A first satellite-derived all-weather daily/1-km Soil Moisture Climatological Record (1980–2023) [PDF]

Scientific Data
Soil moisture (SM) has long been recognized as one of the essential climate variables. However, there are no satellite-derived global SM climatological records spanning over 30 years at fine spatiotemporal resolution.
Shuangxue Zhai, Pei Leng, Chunfeng Ma, Abba Aliyu Kasim, Tian Ma, Hongyuan Huo, Si-Bo Duan, Xiangyang Liu, Zhao-Liang Li   +8 more
doaj   +2 more sources

Triple Collocation-Based Uncertainty Analysis and Data Fusion of Multi-Source Evapotranspiration Data Across China

Atmosphere
Accurate estimation of evapotranspiration (ET) is critical for understanding land-atmospheric interactions. Despite the advancement in ET measurement, a single ET estimate still suffers from inherent uncertainties.
Dayang Wang, Shaobo Liu, Dagang Wang
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

Enhancing Spatiotemporal Resolution of MCCA SMAP Soil Moisture Products over China: A Comparative Study of Machine Learning-Based Downscaling Approaches [PDF]

Sensors
As a key parameter of the Earth’s ecosystem, soil moisture significantly influences land-atmosphere interactions and has important applications in meteorology, hydrology, and agricultural studies.
Zhuoer Ma, Peng Chen, Hao Chen, Hang Liu, Yuchen Zhang, Binyi Huang, Yang Hong, Shizheng Sun   +7 more
doaj   +2 more sources

Built-Up Surface Ensemble Model for Romania Based on OpenStreetMap, Microsoft Building Footprints, and Global Human Settlement Layer Data Sources Using Triple Collocation Analysis

ISPRS International Journal of Geo-Information
Accurate and up-to-date data on built-up areas are crucial for urban planning, disaster management, and sustainable development, yet Romania still lacks a unified, official database.
Zsolt Magyari-Sáska, Ionel Haidu
doaj   +2 more sources

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   +3 more sources

Evaluation of Fengyun-4A Detection Accuracy: A Case Study of the Land Surface Temperature Product for Hunan Province, Central China

Atmosphere, 2022
Land surface temperature (LST) is an important parameter in determining surface energy balance and a fundamental variable detected by the advanced geostationary radiation imager (AGRI), the main payload of FY-4A. FY-4A is the first of a new generation of
Jiazhi Fan, Qinzhe Han, Songqi Wang, Hailei Liu, Leishi Chen, Shiqi Tan, Haiqing Song, Wei Li   +7 more
doaj   +1 more source

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

Evaluation of Aeolus L2B wind product with wind profiling radar measurements and numerical weather prediction model equivalents over Australia [PDF]

Atmospheric Measurement Techniques, 2022
Carrying a laser Doppler instrument, the Aeolus satellite was launched in 2018, becoming the first mission for atmospheric wind profile measurements from space.
H. Zuo, C. B. Hasager, I. Karagali, A. Stoffelen, G.-J. Marseille, J. de Kloe   +5 more
doaj   +1 more source

Error Characterization of Sea Surface Salinity Products Using Triple Collocation Analysis [PDF]

IEEE Transactions on Geoscience and Remote Sensing, 2018
International Conference on Marine Data and Information Systems (IMDIS 2018), 5-7 November 2018, Barcelona.-- 2 pages, 3 tables The monitoring of the global distribution of sea surface salinity (SSS) is vital to understand the ocean’s role in the Earth’s climate.
Nina Hoareau, Marcos Portabella, Wenming Lin, Joaquim Ballabrera-Poy, Antonio Turiel   +4 more
openaire   +3 more sources