FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W3100660276> ?p ?o ?g. }

• W3100660276 endingPage "100066" @default.
• W3100660276 startingPage "100066" @default.
• W3100660276 abstract "• Sources of SMC retrieval uncertainty are investigated using a Bayesian framework. • The main uncertainty originates from the SMC references and Sentinel-1. • The contribution of the surface roughness to the uncertainty is relatively small. • Promising results are obtained for operational retrieval of SMC over meadows. Soil moisture content (SMC) retrievals from synthetic aperture radar (SAR) observations do not exactly match with in situ references due to imperfect retrieval algorithms, and uncertainties in the model parameters, SAR observations and in situ references. Information on the uncertainty of SMC retrievals would contribute to their applicability. This paper presents a methodology for deriving the SMC retrieval uncertainty and decomposing this in its constituents. A Bayesian calibration framework was used for deriving the total uncertainty and the model parameter uncertainty. The methodology was demonstrated with the integral equation method (IEM) surface scattering model, which was employed for reproducing Sentinel-1 backscatter ( σ 0 ) observations and the retrieval of SMC over four sparsely vegetated fields in the Netherlands. For two meadows the calibrated surface roughness parameter distributions are remarkably similar between the ascending and the descending Sentinel-1 orbits as well as between the two meadows, and yield consistent SMC retrievals for the calibration and validation periods ( RMSD s of 0.076 m 3 m −3 to 0.11 m 3 m −3 ). These results are promising for operational retrieval of SMC over meadows. In contrast, the surface roughness parameter distributions of two fallow maize fields differ significantly and the surface roughness conditions changing over time result in less consistent SMC retrievals (calibration RMSD s of 0.096 m 3 m −3 and 0.13 m 3 m −3 versus validation RMSD s of 0.26 m 3 m −3 ). The SMC retrieval uncertainty derived with the Bayesian calibration successfully reproduces the uncertainty estimated empirically using in situ references. The main uncertainty originates from the in situ references and the Sentinel-1 observations, whereas the contribution from the surface roughness parameters is relatively small. The presented research yields further insights into the surface roughness of agricultural fields and SMC retrieval uncertainties, and these insights can be used to guide SAR-based SMC product developments." @default.
• W3100660276 created "2020-11-23" @default.
• W3100660276 creator A5010361110 @default.
• W3100660276 creator A5037183827 @default.
• W3100660276 creator A5070844465 @default.
• W3100660276 date "2020-12-01" @default.
• W3100660276 modified "2023-09-29" @default.
• W3100660276 title "Sentinel-1 soil moisture content and its uncertainty over sparsely vegetated fields" @default.
• W3100660276 cites W1754423787 @default.
• W3100660276 cites W1957811280 @default.
• W3100660276 cites W1963714823 @default.
• W3100660276 cites W1963785404 @default.
• W3100660276 cites W1970170811 @default.
• W3100660276 cites W1973652252 @default.
• W3100660276 cites W1977109485 @default.
• W3100660276 cites W1984670836 @default.
• W3100660276 cites W1985439724 @default.
• W3100660276 cites W1989657138 @default.
• W3100660276 cites W1995589218 @default.
• W3100660276 cites W2003962096 @default.
• W3100660276 cites W2005309753 @default.
• W3100660276 cites W2008581100 @default.
• W3100660276 cites W2008780751 @default.
• W3100660276 cites W2011659320 @default.
• W3100660276 cites W2014917534 @default.
• W3100660276 cites W2015763853 @default.
• W3100660276 cites W2028979033 @default.
• W3100660276 cites W2035745410 @default.
• W3100660276 cites W2038291063 @default.
• W3100660276 cites W2038949241 @default.
• W3100660276 cites W2044735186 @default.
• W3100660276 cites W2046429644 @default.
• W3100660276 cites W2054393167 @default.
• W3100660276 cites W2055294775 @default.
• W3100660276 cites W2058232479 @default.
• W3100660276 cites W2063521276 @default.
• W3100660276 cites W2066682817 @default.
• W3100660276 cites W2082317410 @default.
• W3100660276 cites W2086891831 @default.
• W3100660276 cites W2086982992 @default.
• W3100660276 cites W2087165560 @default.
• W3100660276 cites W2092055157 @default.
• W3100660276 cites W2092532914 @default.
• W3100660276 cites W2097816127 @default.
• W3100660276 cites W2098173414 @default.
• W3100660276 cites W2109898366 @default.
• W3100660276 cites W2111626115 @default.
• W3100660276 cites W2114711020 @default.
• W3100660276 cites W2117212800 @default.
• W3100660276 cites W2117466868 @default.
• W3100660276 cites W2118172265 @default.
• W3100660276 cites W2123677000 @default.
• W3100660276 cites W2128272431 @default.
• W3100660276 cites W2129493498 @default.
• W3100660276 cites W2134575632 @default.
• W3100660276 cites W2135558118 @default.
• W3100660276 cites W2135875801 @default.
• W3100660276 cites W2138149909 @default.
• W3100660276 cites W2139736890 @default.
• W3100660276 cites W2141219203 @default.
• W3100660276 cites W2142409859 @default.
• W3100660276 cites W2150956979 @default.
• W3100660276 cites W2151586007 @default.
• W3100660276 cites W2152599190 @default.
• W3100660276 cites W2152743331 @default.
• W3100660276 cites W2155438669 @default.
• W3100660276 cites W2163283072 @default.
• W3100660276 cites W2173126837 @default.
• W3100660276 cites W2348428089 @default.
• W3100660276 cites W2399809112 @default.
• W3100660276 cites W2530313632 @default.
• W3100660276 cites W2557707689 @default.
• W3100660276 cites W2581185998 @default.
• W3100660276 cites W2589162739 @default.
• W3100660276 cites W2606762649 @default.
• W3100660276 cites W2761461115 @default.
• W3100660276 cites W2762180336 @default.
• W3100660276 cites W2770399932 @default.
• W3100660276 cites W2773793494 @default.
• W3100660276 cites W2784286657 @default.
• W3100660276 cites W2792220218 @default.
• W3100660276 cites W2799869868 @default.
• W3100660276 cites W2898962279 @default.
• W3100660276 cites W2907323557 @default.
• W3100660276 cites W2969986354 @default.
• W3100660276 cites W2970153073 @default.
• W3100660276 cites W2972262484 @default.
• W3100660276 cites W2979929448 @default.
• W3100660276 doi "https://doi.org/10.1016/j.hydroa.2020.100066" @default.
• W3100660276 hasPublicationYear "2020" @default.
• W3100660276 type Work @default.
• W3100660276 sameAs 3100660276 @default.
• W3100660276 citedByCount "13" @default.
• W3100660276 countsByYear W31006602762021 @default.
• W3100660276 countsByYear W31006602762022 @default.
• W3100660276 countsByYear W31006602762023 @default.
• W3100660276 crossrefType "journal-article" @default.
• W3100660276 hasAuthorship W3100660276A5010361110 @default.

• next