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| Titel |
The Budyko and complementary relationships in an idealized model of large-scale land–atmosphere coupling |
| VerfasserIn |
B. R. Lintner, P. Gentine, K. L. Findell, G. D. Salvucci |
| 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 ; 19, no. 5 ; Nr. 19, no. 5 (2015-05-04), S.2119-2131 |
| Datensatznummer |
250120701
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| Publikation (Nr.) |
 copernicus.org/hess-19-2119-2015.pdf |
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| Zusammenfassung |
| Two well-known relationships in hydrology and hydrometeorology, the Budyko
and complementary relationships, are examined within an idealized prototype
representing the physics of large-scale land–atmosphere coupling developed
in prior work. These relationships are shown to hold on long (climatologic)
timescales because of the tight coupling that exists between precipitation,
atmospheric radiation, moisture convergence and advection. The slope of the
CR is shown to be dependent on the Clausius–Clapeyron relationship between
saturation-specific humidity and temperature, with important implications for
the continental hydrologic cycle in a warming climate; e.g., one consequence
of this dependence is that the CR may be expected to become more asymmetric
with warming, as higher values of the slope imply a larger change in
potential evaporation for a given change in evapotranspiration. In addition,
the transparent physics of the prototype permits diagnosis of the sensitivity
of the Budyko and complementary relationships to various atmospheric and land
surface processes. Here, the impacts of anthropogenic influences, including
large-scale irrigation and global warming, are assessed. |
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