Academic Journal
Summer temperature response to extreme soil water conditions in the Mediterranean transitional climate regime
| Τίτλος: | Summer temperature response to extreme soil water conditions in the Mediterranean transitional climate regime |
|---|---|
| Συγγραφείς: | Chloé Prodhomme, Paolo Ruggieri, Constantin Ardilouze, Markus G. Donat, Francisco J. Doblas-Reyes, Daniele Peano, Marianna Benassi, Louis-Philippe Caron, Stefano Materia, Silvio Gualdi |
| Συνεισφορές: | Barcelona Supercomputing Center, Ardilouze, Constantin |
| Πηγή: | UPCommons. Portal del coneixement obert de la UPC Universitat Politècnica de Catalunya (UPC) |
| Στοιχεία εκδότη: | Springer Science and Business Media LLC, 2021. |
| Έτος έκδοσης: | 2021 |
| Θεματικοί όροι: | 2. Zero hunger, Evapotranspiration, land surface, [SDU.OCEAN] Sciences of the Universe [physics]/Ocean, Atmosphere, 0207 environmental engineering, 02 engineering and technology, Àrees temàtiques de la UPC::Enginyeria agroalimentària::Ciències de la terra i de la vida, 15. Life on land, 01 natural sciences, [SDU.ENVI] Sciences of the Universe [physics]/Continental interfaces, environment, 6. Clean water, Bowen ratio, Temperatura atmosfèrica -- Mesurament, Soil moisture memory, 13. Climate action, Enginyeria agroalimentària::Ciències de la terra i de la vida [Àrees temàtiques de la UPC], Soil moisture, Temperature measurements, Hotspot · MEDSCOPE, 0105 earth and related environmental sciences |
| Περιγραφή: | Land surface and atmosphere are interlocked by the hydrological and energy cycles and the effects of soil water-air coupling can modulate near-surface temperatures. In this work, three paired experiments were designed to evaluate impacts of different soil moisture initial and boundary conditions on summer temperatures in the Mediterranean transitional climate regime region. In this area, evapotranspiration is not limited by solar radiation, rather by soil moisture, which therefore controls the boundary layer variability. Extremely dry, extremely wet and averagely humid ground conditions are imposed to two global climate models at the beginning of the warm and dry season. Then, sensitivity experiments, where atmosphere is alternatively interactive with and forced by land surface, are launched. The initial soil state largely affects summer near-surface temperatures: dry soils contribute to warm the lower atmosphere and exacerbate heat extremes, while wet terrains suppress thermal peaks, and both effects last for several months. Land-atmosphere coupling proves to be a fundamental ingredient to modulate the boundary layer state, through the partition between latent and sensible heat fluxes. In the coupled runs, early season heat waves are sustained by interactive dry soils, which respond to hot weather conditions with increased evaporative demand, resulting in longer-lasting extreme temperatures. On the other hand, when wet conditions are prescribed across the season, the occurrence of hot days is suppressed. The land surface prescribed by climatological precipitation forcing causes a temperature drop throughout the months, due to sustained evaporation of surface soil water. Results have implications for seasonal forecasts on both rain-fed and irrigated continental regions in transitional climate zones. |
| Τύπος εγγράφου: | Article |
| Περιγραφή αρχείου: | application/pdf |
| Γλώσσα: | English |
| ISSN: | 1432-0894 0930-7575 |
| DOI: | 10.1007/s00382-021-05815-8 |
| DOI: | 10.13039/100010661 |
| Σύνδεσμος πρόσβασης: | https://link.springer.com/content/pdf/10.1007/s00382-021-05815-8.pdf http://hdl.handle.net/2117/346902 https://upcommons.upc.edu/handle/2117/346902 https://ui.adsabs.harvard.edu/abs/2021ClDy..tmp..269M/abstract https://link.springer.com/content/pdf/10.1007/s00382-021-05815-8.pdf https://link.springer.com/article/10.1007/s00382-021-05815-8 https://cris.unibo.it/handle/11585/821585 https://hdl.handle.net/2117/346902 https://doi.org/10.1007/s00382-021-05815-8 https://meteofrance.hal.science/meteo-03478064v1/document https://meteofrance.hal.science/meteo-03478064v1 https://doi.org/10.1007/s00382-021-05815-8 https://link.springer.com/article/10.1007/s00382-021-05815-8 https://hdl.handle.net/11585/821585 https://doi.org/10.1007/s00382-021-05815-8 |
| Rights: | CC BY |
| Αριθμός Καταχώρησης: | edsair.doi.dedup.....3bdcee8b519d6a2ec5b40a1f49c53b9d |
| Βάση Δεδομένων: | OpenAIRE |
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