Surface-sensible and latent heat fluxes over the Tibetan Plateau from ground measurements, reanalysis, and satellite data
Estimations from meteorological stations over the Tibetan Plateau (TP) indicate that since the 1980s the surface-sensible heat flux has been decreasing continuously, and modeling studies suggest that such changes are likely linked to the weakening of the East Asian Monsoon through exciting Rossby wa...
| Main Authors: | , |
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| Format: | Article |
| Language: | English |
| Published: |
Copernicus Publications
2014-06-01
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| Series: | Atmospheric Chemistry and Physics |
| Online Access: | http://www.atmos-chem-phys.net/14/5659/2014/acp-14-5659-2014.pdf |
| _version_ | 1818502123937071104 |
|---|---|
| author | Q. Shi S. Liang |
| author_facet | Q. Shi S. Liang |
| author_sort | Q. Shi |
| collection | DOAJ |
| description | Estimations from meteorological stations over the Tibetan
Plateau (TP) indicate that since the 1980s the surface-sensible heat flux
has been decreasing continuously, and modeling studies suggest that such
changes are likely linked to the weakening of the East Asian Monsoon through
exciting Rossby wave trains. However, the spatial and temporal variations in
the surface-sensible and latent heat fluxes over the entire TP remain
unknown. This study aims to characterize the spatial and seasonal
variability of the surface-sensible and latent heat fluxes at 0.5°
over the TP from 1984 to 2007 by synthesizing multiple data sources
including ground measurements, reanalysis products, and remote-sensing
products. The root mean square errors (RMSEs) from cross validation are
14.3 Wm<sup>−2</sup> and 10.3 Wm<sup>−2</sup> for the monthly fused sensible and latent heat
fluxes, respectively. The fused sensible and latent heat-flux anomalies are
consistent with those estimated from meteorological stations, and the
uncertainties of the fused data are also discussed. The associations among
the fused sensible and latent heat fluxes and the related surface anomalies
such as mean temperature, temperature range, snow cover, and normalized
difference vegetation index (NDVI) in addition to atmospheric anomalies such
as cloud cover and water vapor show seasonal dependence, suggest that the
land–biosphere–atmosphere interactions over the TP could display
nonuniform feedbacks to the climate changes. It would be interesting to
disentangle the drivers and responses of the surface-sensible and latent
heat-flux anomalies over the TP in future research from evidences of
modeling results. |
| first_indexed | 2024-12-10T21:05:35Z |
| format | Article |
| id | doaj.art-af2f0e41f7804c03b8b6c9861ba3e8ea |
| institution | Directory Open Access Journal |
| issn | 1680-7316 1680-7324 |
| language | English |
| last_indexed | 2024-12-10T21:05:35Z |
| publishDate | 2014-06-01 |
| publisher | Copernicus Publications |
| record_format | Article |
| series | Atmospheric Chemistry and Physics |
| spelling | doaj.art-af2f0e41f7804c03b8b6c9861ba3e8ea2022-12-22T01:33:39ZengCopernicus PublicationsAtmospheric Chemistry and Physics1680-73161680-73242014-06-0114115659567710.5194/acp-14-5659-2014Surface-sensible and latent heat fluxes over the Tibetan Plateau from ground measurements, reanalysis, and satellite dataQ. Shi0S. Liang1Department of Geographical Sciences, University of Maryland, College Park, Maryland, USADepartment of Geographical Sciences, University of Maryland, College Park, Maryland, USAEstimations from meteorological stations over the Tibetan Plateau (TP) indicate that since the 1980s the surface-sensible heat flux has been decreasing continuously, and modeling studies suggest that such changes are likely linked to the weakening of the East Asian Monsoon through exciting Rossby wave trains. However, the spatial and temporal variations in the surface-sensible and latent heat fluxes over the entire TP remain unknown. This study aims to characterize the spatial and seasonal variability of the surface-sensible and latent heat fluxes at 0.5° over the TP from 1984 to 2007 by synthesizing multiple data sources including ground measurements, reanalysis products, and remote-sensing products. The root mean square errors (RMSEs) from cross validation are 14.3 Wm<sup>−2</sup> and 10.3 Wm<sup>−2</sup> for the monthly fused sensible and latent heat fluxes, respectively. The fused sensible and latent heat-flux anomalies are consistent with those estimated from meteorological stations, and the uncertainties of the fused data are also discussed. The associations among the fused sensible and latent heat fluxes and the related surface anomalies such as mean temperature, temperature range, snow cover, and normalized difference vegetation index (NDVI) in addition to atmospheric anomalies such as cloud cover and water vapor show seasonal dependence, suggest that the land–biosphere–atmosphere interactions over the TP could display nonuniform feedbacks to the climate changes. It would be interesting to disentangle the drivers and responses of the surface-sensible and latent heat-flux anomalies over the TP in future research from evidences of modeling results.http://www.atmos-chem-phys.net/14/5659/2014/acp-14-5659-2014.pdf |
| spellingShingle | Q. Shi S. Liang Surface-sensible and latent heat fluxes over the Tibetan Plateau from ground measurements, reanalysis, and satellite data Atmospheric Chemistry and Physics |
| title | Surface-sensible and latent heat fluxes over the Tibetan Plateau from ground measurements, reanalysis, and satellite data |
| title_full | Surface-sensible and latent heat fluxes over the Tibetan Plateau from ground measurements, reanalysis, and satellite data |
| title_fullStr | Surface-sensible and latent heat fluxes over the Tibetan Plateau from ground measurements, reanalysis, and satellite data |
| title_full_unstemmed | Surface-sensible and latent heat fluxes over the Tibetan Plateau from ground measurements, reanalysis, and satellite data |
| title_short | Surface-sensible and latent heat fluxes over the Tibetan Plateau from ground measurements, reanalysis, and satellite data |
| title_sort | surface sensible and latent heat fluxes over the tibetan plateau from ground measurements reanalysis and satellite data |
| url | http://www.atmos-chem-phys.net/14/5659/2014/acp-14-5659-2014.pdf |
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