FRINK Linked Data Fragments server

Matches in SemOpenAlex for { <https://semopenalex.org/work/W149738419> ?p ?o ?g. }

• W149738419 endingPage "306" @default.
• W149738419 startingPage "273" @default.
• W149738419 abstract "The importance of land surface and vegetation characteristics for climate has long been hypothesisized and is reflected by increasingly sophisticated land surface schemes used in climate models. However, accurate parameterisation of land surface processes is still hampered by the complexity of the processes, and by data availability at the global scale required for general circulation models. It is, therefore, desirable to utilise additional data sources for land surface models, of which satellite data appear to be the most promising in terms of availability and spatial and temporal coverage. Here, monthly satellite-derived fields of the fraction of Absorbed Photosynthetically Active Radiation (fAPAR) are assimilated into a land surface and vegetation model, the Biosphere Energy-Transfer Hydrology scheme (Bethy). Assimilation offers the advantage that uncertainties of both the satellite-derived fAPAR and model parameters can be accounted for. Since fAPAR can also be predicted by the model, this information is not discarded as in other approaches where satellite data are used as forcing. During assimilation, a number of model parameters are adjusted until a cost function reaches its minimum. This cost function is defined by the squared deviation between monthly model-simulated and satellite-derived fAPAR as well as between initial and adjusted model parameters, both normalised by their assumed error variances. One of the adjusted parameters, the maximum plant-available soil moisture, is used in a subsequent sensitivity study with the Echam-4 climate model. The results show that changes in this parameter as a result of satellite data assimilation can lead to significant changes in simulated soil moisture and 2m air temperature over large parts of the tropics, where soil water storage is usually underestimated in climate and vegetation models. A comparison of Bethy simulations with soil water measurements from Amazonia supports this finding, and also shows that using fAPAR as forcing would have lead to inconsistencies between the carbon balance, predicting a strong decrease in fAPAR at negative carbon gains, and the value of fAPAR prescribed from the satellite data. The study aims at demonstrating the potential of assimilating satellite data into land surface models, as well as the significance of vegetation for the land surface climate. It is further intended to indicate a methodology for the assimilation of satellite data into general circulation models that include an interactive, i.e. climate-responsive, vegetation component." @default.
• W149738419 created "2016-06-24" @default.
• W149738419 creator A5009096940 @default.
• W149738419 creator A5030232924 @default.
• W149738419 date "2001-01-01" @default.
• W149738419 modified "2023-09-27" @default.
• W149738419 title "Using Satellite Data Assimilation to Infer Global Soil Moisture Status and Vegetation Feedback to Climate" @default.
• W149738419 cites W107628094 @default.
• W149738419 cites W1524794027 @default.
• W149738419 cites W1560774761 @default.
• W149738419 cites W1588042396 @default.
• W149738419 cites W1963757578 @default.
• W149738419 cites W1966791578 @default.
• W149738419 cites W1969611039 @default.
• W149738419 cites W1974047452 @default.
• W149738419 cites W1974655800 @default.
• W149738419 cites W1978869941 @default.
• W149738419 cites W1984878238 @default.
• W149738419 cites W1984910906 @default.
• W149738419 cites W1987671990 @default.
• W149738419 cites W1988144647 @default.
• W149738419 cites W1994668402 @default.
• W149738419 cites W1996733552 @default.
• W149738419 cites W1999112734 @default.
• W149738419 cites W2008662129 @default.
• W149738419 cites W2010036012 @default.
• W149738419 cites W2011435649 @default.
• W149738419 cites W2012767400 @default.
• W149738419 cites W2013114278 @default.
• W149738419 cites W2013853734 @default.
• W149738419 cites W2014276882 @default.
• W149738419 cites W2015979448 @default.
• W149738419 cites W2016058608 @default.
• W149738419 cites W2017238948 @default.
• W149738419 cites W2019448968 @default.
• W149738419 cites W2021444576 @default.
• W149738419 cites W2023350074 @default.
• W149738419 cites W2031251753 @default.
• W149738419 cites W2032638770 @default.
• W149738419 cites W2036670398 @default.
• W149738419 cites W2043168233 @default.
• W149738419 cites W2046857879 @default.
• W149738419 cites W2054686252 @default.
• W149738419 cites W2059163574 @default.
• W149738419 cites W2071641450 @default.
• W149738419 cites W2074787423 @default.
• W149738419 cites W2078974732 @default.
• W149738419 cites W2079193777 @default.
• W149738419 cites W2079438899 @default.
• W149738419 cites W2080334845 @default.
• W149738419 cites W2080799055 @default.
• W149738419 cites W2080808068 @default.
• W149738419 cites W2083388427 @default.
• W149738419 cites W2085482846 @default.
• W149738419 cites W2086075858 @default.
• W149738419 cites W2087047858 @default.
• W149738419 cites W2087463450 @default.
• W149738419 cites W2087803085 @default.
• W149738419 cites W2092722122 @default.
• W149738419 cites W2097492523 @default.
• W149738419 cites W2120148750 @default.
• W149738419 cites W2121129225 @default.
• W149738419 cites W2131669269 @default.
• W149738419 cites W2134379613 @default.
• W149738419 cites W2145830077 @default.
• W149738419 cites W2154306139 @default.
• W149738419 cites W2155212656 @default.
• W149738419 cites W2158683657 @default.
• W149738419 cites W2164601356 @default.
• W149738419 cites W2167891208 @default.
• W149738419 cites W2179031038 @default.
• W149738419 cites W2179431392 @default.
• W149738419 cites W2181150263 @default.
• W149738419 cites W2289923457 @default.
• W149738419 cites W2478369032 @default.
• W149738419 cites W2487052941 @default.
• W149738419 cites W2800524066 @default.
• W149738419 cites W4231040114 @default.
• W149738419 cites W4234102482 @default.
• W149738419 cites W4245572863 @default.
• W149738419 cites W4299847412 @default.
• W149738419 cites W71783187 @default.
• W149738419 doi "https://doi.org/10.1007/0-306-48149-9_12" @default.
• W149738419 hasPublicationYear "2001" @default.
• W149738419 type Work @default.
• W149738419 sameAs 149738419 @default.
• W149738419 citedByCount "12" @default.
• W149738419 countsByYear W1497384192012 @default.
• W149738419 countsByYear W1497384192019 @default.
• W149738419 crossrefType "book-chapter" @default.
• W149738419 hasAuthorship W149738419A5009096940 @default.
• W149738419 hasAuthorship W149738419A5030232924 @default.
• W149738419 hasConcept C107218244 @default.
• W149738419 hasConcept C111368507 @default.
• W149738419 hasConcept C127313418 @default.
• W149738419 hasConcept C127413603 @default.
• W149738419 hasConcept C131366478 @default.
• W149738419 hasConcept C132651083 @default.

• next