On the comparison between the LISFLOOD modelled and the ERS/SCAT derived soil moisture estimates
In order to evaluate the reliability of the soil moisture product obtained by means of the LISFLOOD hydrological model (De Roo et al., 2000), we compare it to soil moisture estimates derived from ERS scatterometer data (Wagner et al., 1999b). <br><br> Once evaluated the e...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2008-12-01
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| Series: | Hydrology and Earth System Sciences |
| Online Access: | http://www.hydrol-earth-syst-sci.net/12/1339/2008/hess-12-1339-2008.pdf |
| _version_ | 1818516089344098304 |
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| author | G. Laguardia S. Niemeyer |
| author_facet | G. Laguardia S. Niemeyer |
| author_sort | G. Laguardia |
| collection | DOAJ |
| description | In order to evaluate the reliability of the soil moisture product obtained by means of the LISFLOOD hydrological model (De Roo et al., 2000), we compare it to soil moisture estimates derived from ERS scatterometer data (Wagner et al., 1999b). <br><br> Once evaluated the effect of scale mismatch, we calculate the root mean square error and the correlation between the two soil moisture time series on a pixel basis and we assess the fraction of variance that can be explained by a set of input parameter fields that vary from elevation and soil depth to rainfall statistics and missing or snow covered ERS images. <br><br> The two datasets show good agreement over large regions, with 90% of the area having a positive correlation coefficient and 66% having a root mean square error minor than 0.5 pF units. Major inconsistencies are located in mountainous regions such as the Alps or Scandinavia where both the methodologies suffer from insufficiently resolved land surface processes at the given spatial resolution, as well as from limited availability of satellite data on the one hand and the uncertainties in meteorological data retrieval on the other hand. |
| first_indexed | 2024-12-11T00:37:25Z |
| format | Article |
| id | doaj.art-170966bb421445aca001941f2faa1686 |
| institution | Directory Open Access Journal |
| issn | 1027-5606 1607-7938 |
| language | English |
| last_indexed | 2024-12-11T00:37:25Z |
| publishDate | 2008-12-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Hydrology and Earth System Sciences |
| spelling | doaj.art-170966bb421445aca001941f2faa16862022-12-22T01:27:04ZengCopernicus PublicationsHydrology and Earth System Sciences1027-56061607-79382008-12-0112613391351On the comparison between the LISFLOOD modelled and the ERS/SCAT derived soil moisture estimatesG. LaguardiaS. NiemeyerIn order to evaluate the reliability of the soil moisture product obtained by means of the LISFLOOD hydrological model (De Roo et al., 2000), we compare it to soil moisture estimates derived from ERS scatterometer data (Wagner et al., 1999b). <br><br> Once evaluated the effect of scale mismatch, we calculate the root mean square error and the correlation between the two soil moisture time series on a pixel basis and we assess the fraction of variance that can be explained by a set of input parameter fields that vary from elevation and soil depth to rainfall statistics and missing or snow covered ERS images. <br><br> The two datasets show good agreement over large regions, with 90% of the area having a positive correlation coefficient and 66% having a root mean square error minor than 0.5 pF units. Major inconsistencies are located in mountainous regions such as the Alps or Scandinavia where both the methodologies suffer from insufficiently resolved land surface processes at the given spatial resolution, as well as from limited availability of satellite data on the one hand and the uncertainties in meteorological data retrieval on the other hand.http://www.hydrol-earth-syst-sci.net/12/1339/2008/hess-12-1339-2008.pdf |
| spellingShingle | G. Laguardia S. Niemeyer On the comparison between the LISFLOOD modelled and the ERS/SCAT derived soil moisture estimates Hydrology and Earth System Sciences |
| title | On the comparison between the LISFLOOD modelled and the ERS/SCAT derived soil moisture estimates |
| title_full | On the comparison between the LISFLOOD modelled and the ERS/SCAT derived soil moisture estimates |
| title_fullStr | On the comparison between the LISFLOOD modelled and the ERS/SCAT derived soil moisture estimates |
| title_full_unstemmed | On the comparison between the LISFLOOD modelled and the ERS/SCAT derived soil moisture estimates |
| title_short | On the comparison between the LISFLOOD modelled and the ERS/SCAT derived soil moisture estimates |
| title_sort | on the comparison between the lisflood modelled and the ers scat derived soil moisture estimates |
| url | http://www.hydrol-earth-syst-sci.net/12/1339/2008/hess-12-1339-2008.pdf |
| work_keys_str_mv | AT glaguardia onthecomparisonbetweenthelisfloodmodelledandtheersscatderivedsoilmoistureestimates AT sniemeyer onthecomparisonbetweenthelisfloodmodelledandtheersscatderivedsoilmoistureestimates |