GLACE: The Global Land-Atmosphere Coupling Experiment. Part II: Analysis

Zhichang Guo; Paul A. Dirmeyer; Randal D. Koster; Gordon Bonan; Edmond Chan; Peter Cox; C. T. Gordon; Shinjiro Kanae; Eva Kowalczyk; David Lawrence; Ping Liu; Cheng Hsuan Lu; Sergey Malyshev; Bryant McAvaney; J. L. McGregor; Ken Mitchell; David Mocko; Taikan Oki; Keith W. Oleson; Andrew Pitman; Y. C. Sud; Christopher M. Taylor; Diana Verseghy; Ratko Vasic; Yongkang Xue; Tomohito Yamada

doi:10.1175/JHM511.1

GLACE: The Global Land-Atmosphere Coupling Experiment. Part II: Analysis

Zhichang Guo^*, Paul A. Dirmeyer, Randal D. Koster, Gordon Bonan, Edmond Chan, Peter Cox, C. T. Gordon, Shinjiro Kanae, Eva Kowalczyk, David Lawrence, Ping Liu, Cheng Hsuan Lu, Sergey Malyshev, Bryant McAvaney, J. L. McGregor, Ken Mitchell, David Mocko, Taikan Oki, Keith W. Oleson, Andrew PitmanY. C. Sud, Christopher M. Taylor, Diana Verseghy, Ratko Vasic, Yongkang Xue, Tomohito Yamada

^*Corresponding author for this work

Faculty of Science and Engineering

Research output: Contribution to journal › Article › peer-review

359 Citations (Scopus)

Abstract

The 12 weather and climate models participating in the Global Land-Atmosphere Coupling Experiment (GLACE) show both a wide variation in the strength of land-atmosphere coupling and some intriguing commonalities. In this paper, the causes of variations in coupling strength - both the geographic variations within a given model and the model-to-model differences - are addressed. The ability of soil moisture to affect precipitation is examined in two stages, namely, the ability of the soil moisture to affect evaporation, and the ability of evaporation to affect precipitation. Most of the differences between the models and within a given model are found to be associated with the first stage - an evaporation rate that varies strongly and consistently with soil moisture tends to lead to a higher coupling strength. The first-stage differences reflect identifiable differences in model parameterization and model climate. Intermodel differences in the evaporation- precipitation connection, however, also play a key role.

Original language	English
Pages (from-to)	611-625
Number of pages	15
Journal	Journal of Hydrometeorology
Volume	7
Issue number	4
DOIs	https://doi.org/10.1175/JHM511.1
Publication status	Published - Aug 2006

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Guo, Z., Dirmeyer, P. A., Koster, R. D., Bonan, G., Chan, E., Cox, P., Gordon, C. T., Kanae, S., Kowalczyk, E., Lawrence, D., Liu, P., Lu, C. H., Malyshev, S., McAvaney, B., McGregor, J. L., Mitchell, K., Mocko, D., Oki, T., Oleson, K. W., ... Yamada, T. (2006). GLACE: The Global Land-Atmosphere Coupling Experiment. Part II: Analysis. Journal of Hydrometeorology, 7(4), 611-625. https://doi.org/10.1175/JHM511.1

@article{fcdc94ec78fc45ebb1c88fd763e30109,

title = "GLACE: The Global Land-Atmosphere Coupling Experiment. Part II: Analysis",

abstract = "The 12 weather and climate models participating in the Global Land-Atmosphere Coupling Experiment (GLACE) show both a wide variation in the strength of land-atmosphere coupling and some intriguing commonalities. In this paper, the causes of variations in coupling strength - both the geographic variations within a given model and the model-to-model differences - are addressed. The ability of soil moisture to affect precipitation is examined in two stages, namely, the ability of the soil moisture to affect evaporation, and the ability of evaporation to affect precipitation. Most of the differences between the models and within a given model are found to be associated with the first stage - an evaporation rate that varies strongly and consistently with soil moisture tends to lead to a higher coupling strength. The first-stage differences reflect identifiable differences in model parameterization and model climate. Intermodel differences in the evaporation- precipitation connection, however, also play a key role.",

author = "Zhichang Guo and Dirmeyer, {Paul A.} and Koster, {Randal D.} and Gordon Bonan and Edmond Chan and Peter Cox and Gordon, {C. T.} and Shinjiro Kanae and Eva Kowalczyk and David Lawrence and Ping Liu and Lu, {Cheng Hsuan} and Sergey Malyshev and Bryant McAvaney and McGregor, {J. L.} and Ken Mitchell and David Mocko and Taikan Oki and Oleson, {Keith W.} and Andrew Pitman and Sud, {Y. C.} and Taylor, {Christopher M.} and Diana Verseghy and Ratko Vasic and Yongkang Xue and Tomohito Yamada",

year = "2006",

month = aug,

doi = "10.1175/JHM511.1",

language = "English",

volume = "7",

pages = "611--625",

journal = "Journal of Hydrometeorology",

issn = "1525-755X",

publisher = "American Meteorological Society",

number = "4",

}

Guo, Z, Dirmeyer, PA, Koster, RD, Bonan, G, Chan, E, Cox, P, Gordon, CT, Kanae, S, Kowalczyk, E, Lawrence, D, Liu, P, Lu, CH, Malyshev, S, McAvaney, B, McGregor, JL, Mitchell, K, Mocko, D, Oki, T, Oleson, KW, Pitman, A, Sud, YC, Taylor, CM, Verseghy, D, Vasic, R, Xue, Y & Yamada, T 2006, 'GLACE: The Global Land-Atmosphere Coupling Experiment. Part II: Analysis', Journal of Hydrometeorology, vol. 7, no. 4, pp. 611-625. https://doi.org/10.1175/JHM511.1

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T2 - The Global Land-Atmosphere Coupling Experiment. Part II: Analysis

AU - Guo, Zhichang

AU - Dirmeyer, Paul A.

AU - Koster, Randal D.

AU - Bonan, Gordon

AU - Chan, Edmond

AU - Cox, Peter

AU - Gordon, C. T.

AU - Kanae, Shinjiro

AU - Kowalczyk, Eva

AU - Lawrence, David

AU - Liu, Ping

AU - Lu, Cheng Hsuan

AU - Malyshev, Sergey

AU - McAvaney, Bryant

AU - McGregor, J. L.

AU - Mitchell, Ken

AU - Mocko, David

AU - Oki, Taikan

AU - Oleson, Keith W.

AU - Pitman, Andrew

AU - Sud, Y. C.

AU - Taylor, Christopher M.

AU - Verseghy, Diana

AU - Vasic, Ratko

AU - Xue, Yongkang

AU - Yamada, Tomohito

PY - 2006/8

Y1 - 2006/8

N2 - The 12 weather and climate models participating in the Global Land-Atmosphere Coupling Experiment (GLACE) show both a wide variation in the strength of land-atmosphere coupling and some intriguing commonalities. In this paper, the causes of variations in coupling strength - both the geographic variations within a given model and the model-to-model differences - are addressed. The ability of soil moisture to affect precipitation is examined in two stages, namely, the ability of the soil moisture to affect evaporation, and the ability of evaporation to affect precipitation. Most of the differences between the models and within a given model are found to be associated with the first stage - an evaporation rate that varies strongly and consistently with soil moisture tends to lead to a higher coupling strength. The first-stage differences reflect identifiable differences in model parameterization and model climate. Intermodel differences in the evaporation- precipitation connection, however, also play a key role.

AB - The 12 weather and climate models participating in the Global Land-Atmosphere Coupling Experiment (GLACE) show both a wide variation in the strength of land-atmosphere coupling and some intriguing commonalities. In this paper, the causes of variations in coupling strength - both the geographic variations within a given model and the model-to-model differences - are addressed. The ability of soil moisture to affect precipitation is examined in two stages, namely, the ability of the soil moisture to affect evaporation, and the ability of evaporation to affect precipitation. Most of the differences between the models and within a given model are found to be associated with the first stage - an evaporation rate that varies strongly and consistently with soil moisture tends to lead to a higher coupling strength. The first-stage differences reflect identifiable differences in model parameterization and model climate. Intermodel differences in the evaporation- precipitation connection, however, also play a key role.

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SN - 1525-755X

VL - 7

SP - 611

EP - 625

JO - Journal of Hydrometeorology

JF - Journal of Hydrometeorology

IS - 4

ER -

GLACE: The Global Land-Atmosphere Coupling Experiment. Part II: Analysis

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