Results 21 to 30 of about 483 (224)

Blending multi-source evapotranspiration datasets via triple collocation approach [PDF]

, 2020
In this research, we provided a framework to merge well-known satellite- and reanalysis-based global ET products (GLDAS, GLEAM, MOD16, and MERRA) using the triple collocation (TC) along with least-square based merging scheme without the utilization of high-quality ground measurement over East Asia.
Jongjin Baik, Jongmin Park, Minha Choi
openaire   +1 more source

Vegetation Monitoring Optimization With Normalized Difference Vegetation Index and Evapotranspiration Using Remote Sensing Measurements and Land Surface Models Over East Africa

Frontiers in Climate, 2021
The majority of people in East Africa rely on the agro-pastoral system for their livelihood, which is highly vulnerable to droughts and flooding. Agro-pastoral droughts are endemic to the region and are considered the main natural hazard that contributes
Shahriar Pervez, Amy McNally, Amy McNally, Amy McNally, Kristi Arsenault, Kristi Arsenault, Michael Budde, James Rowland   +7 more
doaj   +1 more source

Validation of ocean wind and wave data using triple collocation [PDF]

Journal of Geophysical Research: Oceans, 2003
Significant wave height and wind speed fields from ERA‐40 are validated against buoy, ERS‐1, and Topex altimeter measurements. To do so, we propose and apply a triple collocation statistical model. The model takes into account the random errors in observations and model results and allows the estimation of the variances of the errors.
S. Caires, A. Sterl
openaire   +1 more source

Merging Microwave, Optical, and Reanalysis Data for 1 Km Daily Soil Moisture by Triple Collocation

Remote Sensing, 2022
High-spatiotemporal resolution soil moisture (SM) plays an essential role in optimized irrigation, agricultural droughts, and hydrometeorological model simulations. However, producing high-spatiotemporal seamless soil moisture products is challenging due
Luyao Zhu, Wenjie Li, Hongquan Wang, Xiaodong Deng, Cheng Tong, Shan He, Ke Wang   +6 more
doaj   +1 more source

Correlated Triple Collocation to Estimate SMOS, SMAP and ERA5-Land Soil Moisture Errors

2021 IEEE International Geoscience and Remote Sensing Symposium IGARSS, 2021
The novel Correlated Triple Collocation (CTC) analysis allows to assess three different data sources of similar spatial resolutions, but with two of them being correlated. In this study, the CTC was applied to estimate the unbiased random errors of the global soil moisture (SM) data provided by two L-band satellite missions -the Soil Moisture and Ocean
Pablos Hernández, Miriam, Turiel Martínez, Antonio, Vall-Llossera Ferran, Mercedes Magdalena, Camps Carmona, Adriano José, Portabella, Marcos   +4 more
openaire   +2 more sources

A Comprehensive Evaluation of Gridded L-, C-, and X-Band Microwave Soil Moisture Product over the CZO in the Central Ganga Plains, India

Remote Sensing, 2022
Recent developments in passive microwave remote sensing have provided an effective tool for monitoring global soil moisture (SM) observations on a spatiotemporal basis, filling the gap of uneven in-situ measurement distribution.
Saroj Kumar Dash, Rajiv Sinha
doaj   +1 more source

Evaluation of Assumptions in Soil Moisture Triple Collocation Analysis

Journal of Hydrometeorology, 2014
Abstract Triple collocation analysis (TCA) enables estimation of error variances for three or more products that retrieve or estimate the same geophysical variable using mutually independent methods. Several statistical assumptions regarding the statistical nature of errors (e.g., mutual independence and orthogonality with respect to the
Yilmaz, M. Tugrul, Crow, Wade T.
openaire   +2 more sources

On the Trail of Creativity: Dimensionality of Divergent Thinking and Its Relation With Cognitive Abilities, Personality, and Insight

European Journal of Personality, EarlyView., 2020
Abstract Divergent thinking (DT) is an important constituent of creativity that captures aspects of fluency and originality. The literature lacks multivariate studies that report relationships between DT and its aspects with relevant covariates, such as cognitive abilities, personality traits (e.g. openness), and insight. In two multivariate studies (N 
S. Weiss, D. Steger, Y. Kaur, A. Hildebrandt, U. Schroeders, O. Wilhelm, Christian Kandler   +6 more
wiley   +1 more source

XCO₂ Fusion Algorithm Based on Multi-Source Greenhouse Gas Satellites and CarbonTracker

Atmosphere, 2023
In view of the urgent need for high coverage and high-resolution atmospheric CO2 data in the study of carbon neutralization and global CO2 change research, this study combines the Kriging interpolation and the Triple Collision (TC) algorithm to fuse ...
Ailin Liang, Ruonan Pang, Cheng Chen, Chengzhi Xiang   +3 more
doaj   +1 more source

Triple Collocation Analysis and In Situ Validation of the CYGNSS Soil Moisture Product

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Cyclone Global Navigation Satellite System (CYGNSS) soil moisture (SM) product is characterized by high temporal resolution, but the relative strengths and weaknesses of this new product are unknown.
Xiaodong Deng, Luyao Zhu, Hongquan Wang, XianYun Zhang, Cheng Tong, Sinan Li, Ke Wang   +6 more
doaj   +1 more source