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Global soil moisture data fusion by Triple Collocation Analysis from 2011 to 2018. [PDF]

open access: yesSci Data, 2022
Surface Soil Moisture (SSM) information is needed for agricultural water resource management, hydrology and climate analysis applications. Temporal and spatial sampling by the space-borne instruments designed to retrieve SSM is, however, limited by the ...
Xie Q, Jia L, Menenti M, Hu G.
europepmc   +7 more sources

Triple Collocation Analysis of Satellite Precipitation Estimates over Australia

open access: yesRemote Sensing, 2022
The validation of precipitation estimates is necessary for the selection of the most appropriate dataset, as well as for having confidence in its selection.
Ashley Wild   +2 more
doaj   +3 more sources

Summarizing multiple aspects of triple collocation analysis in a single diagram

open access: yesFrontiers in Remote Sensing
With the ongoing expansion of global observation networks, it is expected that we shall routinely analyze records of geophysical variables such as temperature from multiple collocated instruments.
Leong Wai Siu   +11 more
doaj   +3 more sources

Validating CYGNSS Wind Speeds with Surface-Based Observations and Triple Collocation Analysis

open access: yesRemote Sensing
Existing validation of mean wind speed estimates via reflectometry from global navigation systems of satellites (GNSS-R)—has been largely limited in spatial coverage to equatorial buoys or tropical cyclone events near continental United States.
Ashley Wild   +3 more
doaj   +3 more sources

An Extended Triple Collocation Method With Maximized Correlation for Near Global‐Land Precipitation Fusion

open access: yesGeophysical Research Letters, 2023
An Extended Triple Collocation for maximized Correlation (ETCC) method was proposed with a unique correlation function, the purpose of which is to maximize the correlation between the merged product and unknown truth.
Linyong Wei   +9 more
doaj   +2 more sources

The Effect of Error Non-Orthogonality on Triple Collocation Analyses

open access: yesRemote Sensing, 2022
Triple collocation analysis is an established technique for calculating the relative linear intercalibration coefficients and observation error variances for physical quantities measured simultaneously in space and time by three different observation ...
Jur Vogelzang   +2 more
doaj   +2 more sources

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

open access: yesGeophysical 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   +3 more
doaj   +2 more sources

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

open access: yesIEEE 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   +6 more
doaj   +2 more sources

Triple collocation validates CONUS-wide evapotranspiration inferred from atmospheric conditions [PDF]

open access: yesHydrology and Earth System Sciences
Large-scale estimation of evapotranspiration (ET) remains challenging because no direct remote sensing estimates of ET exist and because most data-driven estimation approaches require assumptions about the impact of moisture conditions and biogeography ...
E. L. McCormick   +5 more
doaj   +2 more sources

Estimates of Mode-S EHS aircraft-derived wind observation errors using triple collocation [PDF]

open access: yesAtmospheric Measurement Techniques, 2016
Information on the accuracy of meteorological observation is essential to assess the applicability of the measurements. In general, accuracy information is difficult to obtain in operational situations, since the truth is unknown. One method to determine
S. de Haan
doaj   +4 more sources

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