FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W4387582119> ?p ?o ?g. }

• W4387582119 abstract "<strong class=journal-contentHeaderColor>Abstract.</strong> Leaf area index (LAI) and fraction of photosynthetically active radiation (FPAR) are critical biophysical parameters for the characterization of terrestrial ecosystems. Long-term global LAI/FPAR products, such as MODIS&VIIRS, provide the fundamental dataset for accessing vegetation dynamics and studying climate change. However, existing global LAI/FPAR products suffer from several limitations, including spatial-temporal inconsistencies and accuracy issues. Considering these limitations, this study develops a Sensor-Independent (SI) LAI/FPAR climate data record (CDR) based on Terra-MODIS/Aqua-MODIS/VIIRS LAI/FPAR standard products. The SI LAI/FPAR CDR covers the period from 2000 to 2022, at spatial resolutions of 500m/5km/0.05 degrees, 8-day/bimonthly temporal frequencies and available in sinusoidal and WGS1984 projections. The methodology includes (<em>i</em>) comprehensive analyses of sensor-specific quality assessment variables to select high quality retrievals, (<em>ii</em>) application of the spatial-temporal tensor (ST-Tensor) completion model to extrapolate LAI and FPAR beyond areas with high quality retrievals, (<em>iii</em>) generation of SI LAI/FPAR CDR in various projections, spatial and temporal resolutions, and (<em>iv</em>) evaluation of the CDR by direct comparisons to ground data and indirectly through reproducing results of LAI/FPAR trends documented in literature. This paper provides a comprehensive analysis of each step involved in the generation of the SI LAI/FPAR CDR, as well as evaluation of the ST-Tensor completion model. Comparisons of SI LAI (FPAR) with ground truth data suggest a RMSE of 0.84 LAI (0.15 FPAR) units with R² of 0.72 (0.79), which are improvements of the standard Terra/Aqua/VIIRS LAI (FPAR) products by 0.02~0.19 LAI (0.01~0.02 FPAR) units with the R² decreased by 0.02~0.16 (0.05~0.09). The SI LAI/FPAR CDR is characterized by a low time series stability (TSS) value, suggesting a more stable and less noisy data set than their sensor-dependent counterparts. Furthermore, the mean absolute error (MAE) of the CDR is also lower, suggesting that SI LAI/FPAR CDR is comparable in accuracy with high-quality retrievals. LAI/FPAR trend analyses based on the SI LAI/FPAR CDR agrees with previous studies, which indirectly provides enhanced capabilities to utilize this CDR for studying vegetation dynamics and climate change. Overall, the integration of multiple satellite data sources and the use of advanced gap-filling modelling techniques improve the accuracy of the SI LAI/FPAR CDR, ensuring the reliability of long-term vegetation studies, global carbon cycle modelling and land policy development for informed decision-making and sustainable environmental management." @default.
• W4387582119 created "2023-10-13" @default.
• W4387582119 date "2023-10-13" @default.
• W4387582119 modified "2023-10-18" @default.
• W4387582119 title "Comment on essd-2023-356" @default.
• W4387582119 doi "https://doi.org/10.5194/essd-2023-356-rc1" @default.
• W4387582119 hasPublicationYear "2023" @default.
• W4387582119 type Work @default.
• W4387582119 citedByCount "0" @default.
• W4387582119 crossrefType "peer-review" @default.
• W4387582119 hasBestOaLocation W43875821191 @default.
• W4387582119 hasConcept C131366478 @default.
• W4387582119 hasConcept C142724271 @default.
• W4387582119 hasConcept C183688256 @default.
• W4387582119 hasConcept C18903297 @default.
• W4387582119 hasConcept C205649164 @default.
• W4387582119 hasConcept C25989453 @default.
• W4387582119 hasConcept C2776133958 @default.
• W4387582119 hasConcept C39432304 @default.
• W4387582119 hasConcept C59822182 @default.
• W4387582119 hasConcept C62649853 @default.
• W4387582119 hasConcept C71924100 @default.
• W4387582119 hasConcept C86803240 @default.
• W4387582119 hasConceptScore W4387582119C131366478 @default.
• W4387582119 hasConceptScore W4387582119C142724271 @default.
• W4387582119 hasConceptScore W4387582119C183688256 @default.
• W4387582119 hasConceptScore W4387582119C18903297 @default.
• W4387582119 hasConceptScore W4387582119C205649164 @default.
• W4387582119 hasConceptScore W4387582119C25989453 @default.
• W4387582119 hasConceptScore W4387582119C2776133958 @default.
• W4387582119 hasConceptScore W4387582119C39432304 @default.
• W4387582119 hasConceptScore W4387582119C59822182 @default.
• W4387582119 hasConceptScore W4387582119C62649853 @default.
• W4387582119 hasConceptScore W4387582119C71924100 @default.
• W4387582119 hasConceptScore W4387582119C86803240 @default.
• W4387582119 hasLocation W43875821191 @default.
• W4387582119 hasOpenAccess W4387582119 @default.
• W4387582119 hasPrimaryLocation W43875821191 @default.
• W4387582119 hasRelatedWork W2115049406 @default.
• W4387582119 hasRelatedWork W2137294844 @default.
• W4387582119 hasRelatedWork W2162420611 @default.
• W4387582119 hasRelatedWork W2276130883 @default.
• W4387582119 hasRelatedWork W2768064775 @default.
• W4387582119 hasRelatedWork W3145861538 @default.
• W4387582119 hasRelatedWork W4311134476 @default.
• W4387582119 hasRelatedWork W4312845347 @default.
• W4387582119 hasRelatedWork W1593288751 @default.
• W4387582119 hasRelatedWork W32300172 @default.
• W4387582119 isParatext "false" @default.
• W4387582119 isRetracted "false" @default.
• W4387582119 workType "peer-review" @default.