Validating the Land-Atmosphere Coupling Behavior in Weather and Climate Models Using Observationally Based Global Products
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作者:
Abdolghafoorian, Abedeh
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George Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USAGeorge Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USA
Abdolghafoorian, Abedeh
[1
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Dirmeyer, Paul A.
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George Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USAGeorge Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USA
Dirmeyer, Paul A.
[1
]
机构:
[1] George Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USA
The interactions between land and atmosphere (with terrestrial and atmospheric coupling segments) play a significant role in weather and climate. A predominant segment of land-atmosphere (LA) feedbacks is the coupling between soil moisture (SM) and surface heat fluxes, the terrestrial coupling leg. The lack of high-quality, long-term, globally distributed observations, however, has hindered a robust, realistic identification of the terrestrial leg strength on a global scale. This exploratory study provides insight into how SM signals are translated into surface flux signals through the construction of a global depiction of the terrestrial leg from several recently developed global, gridded, observationally and satellite-based datasets. The feasibility of producing global gridded estimates of LA coupling metrics is explored. Five weather and climate models used for subseasonal to seasonal forecasting are confronted with the observational estimates to discern discrepancies that may affect their ability to predict phenomena related to LA feedbacks, such as drought or heat waves. The terrestrial feedback leg from observations corroborates the "hot spots" of LA coupling found in modeling studies, but the variances in daily time series of surface fluxes differ markedly. Better agreement and generally higher confidence are seen in metrics using latent heat flux than sensible heat flux. Observational metrics allow for clear stratification of model fidelity that is consistent across seasons, despite observational uncertainty. The results highlight the impact of SM on partitioning available surface energy and illustrate the potential of global observationally based datasets for the assessment of such relationships in weather and climate models.
机构:
Italian Natl Agcy New Technol Energy & Sustainabl, Rome, ItalyItalian Natl Agcy New Technol Energy & Sustainabl, Rome, Italy
Catalano, Franco
Alessandri, Andrea
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Italian Natl Agcy New Technol Energy & Sustainabl, Rome, ItalyItalian Natl Agcy New Technol Energy & Sustainabl, Rome, Italy
Alessandri, Andrea
De Felice, Matteo
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Italian Natl Agcy New Technol Energy & Sustainabl, Rome, ItalyItalian Natl Agcy New Technol Energy & Sustainabl, Rome, Italy
De Felice, Matteo
Zhu, Zaichun
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Chinese Acad Sci, Inst Remote Sensing & Digital Earth, State Key Lab Remote Sensing Sci, Beijing, Peoples R China
Ctr Applicat Spatial Informat Technol Publ Hlth, Beijing, Peoples R ChinaItalian Natl Agcy New Technol Energy & Sustainabl, Rome, Italy
Zhu, Zaichun
Myneni, Ranga B.
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Boston Univ, Dept Earth & Environm, Boston, MA 02215 USAItalian Natl Agcy New Technol Energy & Sustainabl, Rome, Italy
机构:
NOAA, NWS, NCEP, Climate Predict Ctr, Camp Springs, MD USA
Wyle Informat Syst, Mclean, VA USACtr Ocean Land Atmosphere Studies, Calverton, MD 20705 USA
Zhang, Li
Dirmeyer, Paul A.
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Ctr Ocean Land Atmosphere Studies, Calverton, MD 20705 USACtr Ocean Land Atmosphere Studies, Calverton, MD 20705 USA
Dirmeyer, Paul A.
Wei, Jiangfeng
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机构:
Ctr Ocean Land Atmosphere Studies, Calverton, MD 20705 USACtr Ocean Land Atmosphere Studies, Calverton, MD 20705 USA
Wei, Jiangfeng
Guo, Zhichang
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机构:
Ctr Ocean Land Atmosphere Studies, Calverton, MD 20705 USACtr Ocean Land Atmosphere Studies, Calverton, MD 20705 USA
Guo, Zhichang
Lu, Cheng-Hsuan
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机构:
NOAA, NWS, NCEP, Environm Modeling Ctr, Camp Springs, MD USA
IM Syst Grp Inc, Rockville, MD USACtr Ocean Land Atmosphere Studies, Calverton, MD 20705 USA
机构:
Univ Tokyo, Inst Ind Sci, Dept Hydrol & Water Resources Engn, Meguro Ku, Tokyo 1538505, JapanUniv Tokyo, Inst Ind Sci, Dept Hydrol & Water Resources Engn, Meguro Ku, Tokyo 1538505, Japan
Ferguson, Craig R.
Wood, Eric F.
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Princeton Univ, Dept Civil & Environm Engn, Princeton, NJ 08544 USAUniv Tokyo, Inst Ind Sci, Dept Hydrol & Water Resources Engn, Meguro Ku, Tokyo 1538505, Japan
Wood, Eric F.
Vinukollu, Raghuveer K.
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Swiss Re, Armonk, NY USAUniv Tokyo, Inst Ind Sci, Dept Hydrol & Water Resources Engn, Meguro Ku, Tokyo 1538505, Japan
机构:
George Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USAGeorge Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USA
Dirmeyer, Paul A.
Chen, Liang
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机构:
George Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USAGeorge Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USA
Chen, Liang
Wu, Jiexia
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机构:
George Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USAGeorge Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USA
Wu, Jiexia
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机构:
Shin, Chul-Su
Huang, Bohua
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机构:
George Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USAGeorge Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USA
Huang, Bohua
Cash, Benjamin A.
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机构:
George Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USAGeorge Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USA
Cash, Benjamin A.
Bosilovich, Michael G.
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NASA, Goddard Space Flight Ctr, Greenbelt, MD USAGeorge Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USA
Bosilovich, Michael G.
Mahanama, Sarith
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机构:
NASA, Goddard Space Flight Ctr, Greenbelt, MD USAGeorge Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USA
Mahanama, Sarith
Koster, Randal D.
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机构:
NASA, Goddard Space Flight Ctr, Greenbelt, MD USAGeorge Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USA
Koster, Randal D.
Santanello, Joseph A.
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机构:
NASA, Goddard Space Flight Ctr, Greenbelt, MD USAGeorge Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USA
Santanello, Joseph A.
Ek, Michael B.
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机构:
NOAA, Natl Ctr Environm Predict, Environm Modeling Ctr, College Pk, MD USAGeorge Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USA
Ek, Michael B.
Balsamo, Gianpaolo
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European Ctr Medium Range Weather Forecasts, Reading, Berks, EnglandGeorge Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USA
Balsamo, Gianpaolo
Dutra, Emanuel
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Univ Lisbon, Inst Dom Luiz, Fac Ciencias, Lisbon, PortugalGeorge Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USA
Dutra, Emanuel
Lawrence, David M.
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机构:
Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USAGeorge Mason Univ, Ctr Ocean Land Atmosphere Studies, Fairfax, VA 22030 USA