Results 31 to 40 of about 506,951 (266)

Trivariate Spectral Collocation Approach for the Numerical Solution of Three-Dimensional Elliptic Partial Differential Equations

open access: yesMathematics, 2022
This article is concerned with the numerical solution of three-dimensional elliptic partial differential equations (PDEs) using the trivariate spectral collocation approach based on the Kronecker tensor product.
Musawenkhosi Patson Mkhatshwa   +1 more
doaj   +1 more source

Assessment of SMAP and SMOS soil moisture products using triple collocation method over Inner Mongolia

open access: yesJournal of Hydrology: Regional Studies, 2022
Soil moisture (SM) is an indispensable variable in drought monitoring and weather forecast. L-band is found to be the most suitable band for retrieving surface SM.
Fengmin Hu   +9 more
doaj   +1 more source

Triple Collocation Analysis for Two Error-Correlated Datasets: Application to L-Band Brightness Temperatures over Land

open access: yesRemote Sensing, 2020
The error characterization of satellite observations is crucial for blending observations from multiple platforms into a unique dataset and for assimilating them into numerical weather prediction models.
Verónica González-Gambau   +6 more
doaj   +1 more source

Error characterisation of global active and passive microwave soil moisture datasets [PDF]

open access: yesHydrology and Earth System Sciences, 2010
Understanding the error structures of remotely sensed soil moisture observations is essential for correctly interpreting observed variations and trends in the data or assimilating them in hydrological or numerical weather prediction models. Nevertheless,
W. A. Dorigo   +6 more
doaj   +1 more source

Triple Collocation of Ground-, Satellite- and Land Surface Model-Based Surface Soil Moisture Products in Oklahoma—Part I: Individual Product Assessment

open access: yesRemote Sensing, 2022
Improvements in soil moisture observations and modeling play a vital role in drought, water resources, flooding, and landslide management and forecasting.
Zhen Hong   +6 more
doaj   +1 more source

Error Analysis on ESA’s Envisat ASAR Wave Mode Significant Wave Height Retrievals Using Triple Collocation Model

open access: yesRemote Sensing, 2014
Nowadays, spaceborne Synthetic Aperture Radar (SAR) has become a powerful tool for providing significant wave height (SWH). Traditionally, validation of SAR derived SWH has been carried out against buoy measurements or model outputs, which only yield an ...
He Wang, Jianhua Zhu, Jingsong Yang
doaj   +1 more source

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

open access: yesIEEE 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   +4 more
openaire   +3 more sources

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

open access: yes, 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

Inconsistencies of interannual variability and trends in long-term satellite leaf area index products [PDF]

open access: yes, 2017
Understanding the long-term performance of global satellite leaf area index (LAI) products is important for global change research. However, few effort has been devoted to evaluating the long-term time-series consistencies of LAI products.
Claverie, Martin   +5 more
core   +1 more source

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

open access: yesJournal 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

Home - About - Disclaimer - Privacy