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| Titel |
Seasonal and diurnal variations in moisture, heat and CO2 fluxes over a typical steppe prairie in Inner Mongolia, China |
| VerfasserIn |
Z. Gao, D. H. Lenschow, Z. He, M. Zhou |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 13, no. 7 ; Nr. 13, no. 7 (2009-07-07), S.987-998 |
| Datensatznummer |
250011925
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| Publikation (Nr.) |
 copernicus.org/hess-13-987-2009.pdf |
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| Zusammenfassung |
| In order to examine energy partitioning and CO2 exchange over a steppe
prairie in Inner Mongolia, China, fluxes of moisture, heat and CO2 in the
surface layer from June 2007 through June 2008 were calculated using the eddy
covariance method. The study site was homogenous and approximately
1500 m×1500 m in size. Seasonal and diurnal variations in
radiation components, energy components and CO2 fluxes are examined.
Results show that all four radiation components changed seasonally, resulting
in a seasonal variation in net radiation. The radiation components also
changed diurnally. Winter surface albedo was higher than summer surface
albedo because during winter the snow-covered surface increased the surface
albedo. The seasonal variations in both sensible heat and CO2 fluxes were
stronger than those of latent heat and soil heat fluxes. Sensible heat flux
was the main consumer of available energy for the entire experimental period.
The energy imbalance problem was encountered and the causes are analyzed. |
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