Results 1 to 10 of about 382 (174)

Evaluation of SMOS, SMAP, AMSR2 and FY-3C soil moisture products over China. [PDF]

PLoS ONE, 2022
Microwave remote sensing can provide long-term near-surface soil moisture data on regional and global scales. Conducting standardized authenticity tests is critical to the effective use of observed data products in models, data assimilation, and various ...
Jiazhi Fan, Man Luo, Qinzhe Han, Fulai Liu, Wanhua Huang, Shiqi Tan   +5 more
doaj   +2 more sources

Simple Models Outperform More Complex Big‐Leaf Models of Daily Transpiration in Forested Biomes [PDF]

Geophysical Research Letters, 2022
Transpiration makes up the bulk of total evaporation in forested environments yet remains challenging to predict at landscape‐to‐global scales. We harnessed independent estimates of daily transpiration derived from co‐located sap flow and eddy‐covariance
Ryan M. Bright, Diego G. Miralles, Rafael Poyatos, Stephanie Eisner   +3 more
doaj   +2 more sources

Error Decomposition of Remote Sensing Soil Moisture Products Based on the Triple-Collocation Method Introducing an Unbiased Reference Dataset: A Case Study on the Tibetan Plateau [PDF]

Remote Sensing, 2020
Remote sensing (RS) soil moisture (SM) products have been widely used in various environmental studies. Understanding the error structure of data is necessary to properly apply RS SM products in trend and variation analysis and data fusion.
Jian Kang, Rui Jin, Xin Li, Yang Zhang
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

The Impact on Triple/N-Way Collocation-Based Validation of Remote Sensing Products Due to Non-Ideal Error Statistics

Remote Sensing
Triple/N-way collocation is a statistical analysis tool used to estimate the individual error variances of simultaneous observations of a physical quantity by three or more distinct systems.
Rajeswari Balasubramaniam, Christopher Ruf   +1 more
doaj   +2 more sources

Enhancing Uncertainty Assessment of LAI Remote Sensing Products Through Multiple Collocation Methods and Error Separation Techniques

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Information relating to errors in leaf area index (LAI) remote sensing products is crucial for their applications, yet such information is often difficult to obtain due to the limited availability of field measurements for comprehensive validation.
Pan Zhou, Liying Geng, Jun Li
doaj   +2 more sources

ANALYSIS OF SPECIALISED COLLOCATIONS IN THE AREA OF REMOTE SENSING IN THE PERSPECTIVE OF PHRASEOLOGY

Signum: Estudos da Linguagem, 2013
The aim of this research is to build and analyze a parallel corpus in the field of remote sensing in order to identify, according to its frequency, specialized collocations in English and then search for their equivalents in Portuguese.
Diva Cardoso de CAMARGO
doaj   +1 more source

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

Efficient collocation of global navigation satellite system radio occultation soundings with passive nadir microwave soundings [PDF]

Atmospheric Measurement Techniques, 2023
Radio occultation (RO) using the global navigation satellite system (GNSS) can be used to infer atmospheric profiles of microwave refractivity in the Earth's atmosphere.
A. Meredith, S. Leroy, L. Halperin, K. Cahoy   +3 more
doaj   +1 more source

Validation of Multiple Soil Moisture Products over an Intensive Agricultural Region: Overall Accuracy and Diverse Responses to Precipitation and Irrigation Events

Remote Sensing, 2022
Remote sensing and land surface models promote the understanding of soil moisture dynamics by means of multiple products. These products differ in data sources, algorithms, model structures and forcing datasets, complicating the selection of optimal ...
Xingwang Fan, Yanyu Lu, Yongwei Liu, Tingting Li, Shangpei Xun, Xiaosong Zhao   +5 more
doaj   +1 more source