Dependence of the AGCM Climatology on the Method of Prescribing Surface Boundary Conditions and Its Climatological Implication

Lin Zhaohui; Bi Xunqiang; Wang Huijun; Zeng Qingcun

doi:10.1007/s00376-999-0034-z

Impact Factor: 5.8

Volume 16 Issue 4

Oct. 1999

Article Contents

Article > ADVANCES IN ATMOSPHERIC SCIENCES > 1999 > 16(4): 593-607

Dependence of the AGCM Climatology on the Method of Prescribing Surface Boundary Conditions and Its Climatological Implication

1.
LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029

doi: 10.1007/s00376-999-0034-z

Abstract
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Abstract:
By using IAP 9L AGCM, two sets of long-term climatological integration have been per-formed with the two different interpolation procedures for generating the daily surface boundary conditions. One interpolation procedure is the so-called “traditional” scheme, for which the daily surface boundary conditions are obtained by linearly interpolating between the observed monthly mean values, however the observed monthly means cannot be preserved after interpolation. The other one is the “new” scheme, for which the daily surface boundary conditions are obtained by linearly interpolating between the "artificial" monthly mean values which are based on, but are dif-ferent from the observed ones, after interpolating with this new scheme, not only the observed monthly mean values are preserved, the time series of the new generated daily values is also more consistent with the observation. Comparison of the model results shows that the differences of the globally or zonally averaged fields between these two integrations are quite small, and this is due to the compensating effect between the different regions. However, the differences of the two patterns (the global or regional geographical distributions), are quite significant, for example, the magni-tude of the difference in the JJA mean rainfall between these two integrations can exceed 2 mm/day over Asian monsoon regions, and the difference in DJF mean surface air temperature can also exceed 2oC over this region. The fact that the model climatology depends quite strongly on the method of prescribing the daily surface boundary conditions suggests that in order to validate the climate model or to predict the short-term climate anomalies, either the " new* interpolation scheme or the high frequency surface boundary conditions (e.g., daily or weekly data instead of the monthly data) should be introduced. Meanwhile, as for the coupled model, the daily coupling scheme between the different component cli?mate models (e.g., atmospheric and oceanic general circulation models) is preferred in order to partly eliminate the “climate drift” problem which may appear during the course of direct coupling.
- Linear interpolation,
- Model climatology. Atmospheric general circulation model (AGCM),
- Surface boundary condition
References

[1]	Wang Yuan, Wu Rongsheng, 2001: Theoretical Aspect of Suitable Spatial Boundary Condition Specified for Adjoint Model on Limited Area, ADVANCES IN ATMOSPHERIC SCIENCES, 18, 1081-1089. doi: 10.1007/s00376-001-0024-2
[2]	Ni Yunqi, S. E. Zebiak, M. A. Cane, D. M. Straus, 1996: Comparison of Surface Wind Stress Anomalies over the Tropical Pacific Simulated by an AGCM and by a Simple Atmospheric Model, ADVANCES IN ATMOSPHERIC SCIENCES, 13, 229-243. doi: 10.1007/BF02656865
[3]	Chineke Theo Chidiezie, Bi Xunqiang, Wang Huijun, Xue Feng, 1997: The African Climate as Predicted by the IAP Grid-Point Nine-Layer Atmospheric General Circulation Model (IAP-9L-AGCM), ADVANCES IN ATMOSPHERIC SCIENCES, 14, 409-416. doi: 10.1007/s00376-997-0060-7
[4]	Jie SUN, Michael SECOR, Ming CAI, Xiaoming HU, 2024: A Quasi-Linear Relationship between Planetary Outgoing Longwave Radiation and Surface Temperature in a Radiative-Convective-Transportive Climate Model of a Gray Atmosphere, ADVANCES IN ATMOSPHERIC SCIENCES, 41, 8-18. doi: 10.1007/s00376-023-2386-1
[5]	Zhang Xin, Wang Bin, Ji Zhongzhen, 2001: Performance of a Parallel Finite Difference Atmospheric General Circulation Model, ADVANCES IN ATMOSPHERIC SCIENCES, 18, 1175-1184. doi: 10.1007/s00376-001-0031-3
[6]	WEN Xinyu, ZHOU Tianjun, WANG Shaowu, WANG Bin, WAN Hui, LI Jian, 2007: Performance of a Reconfigured Atmospheric General Circulation Model at Low Resolution, ADVANCES IN ATMOSPHERIC SCIENCES, 24, 712-728. doi: 10.1007/s00376-007-0712-7
[7]	Wu Guoxiong, Liu Hui, Zhao Yucheng, Li Weiping, 1996: A Nine-layer Atmospheric General Circulation Model and Its Performance, ADVANCES IN ATMOSPHERIC SCIENCES, 13, 1-18. doi: 10.1007/BF02657024
[8]	Zhang Xuehong, 1990: Dynamical Framework of IAP Nine-Level Atmospheric General Circulation Model, ADVANCES IN ATMOSPHERIC SCIENCES, 7, 67-77. doi: 10.1007/BF02919169
[9]	Liang Xinzhong, 1996: Description of A Nine-Level Grid Point Atmospheric General Circulation Model, ADVANCES IN ATMOSPHERIC SCIENCES, 13, 269-298. doi: 10.1007/BF02656847
[10]	Mu Mu, Guo Huan, Wang Jiafeng, LiYong, 2000: The Impact of Nonlinear Stability and Instability on the Validity of the Tangent Linear Model, ADVANCES IN ATMOSPHERIC SCIENCES, 17, 375-390. doi: 10.1007/s00376-000-0030-9
[11]	Peter C. Chu, Chen Yuchun, Lu Shihua, 2001: Evaluation of Haney-Type Surface Thermal Boundary Conditions Using a Coupled Atmosphere and Ocean Model, ADVANCES IN ATMOSPHERIC SCIENCES, 18, 355-375. doi: 10.1007/BF02919315
[12]	Hu Yinqiao, 2002: Application of Linear Thermodynamics to the Atmospheric System. Part Ⅰ: Linear Phenomenological Relations and Thermodynamic Property of the Atmospheric System, ADVANCES IN ATMOSPHERIC SCIENCES, 19, 448-458. doi: 10.1007/s00376-002-0078-9
[13]	Hu Yinqiao, 2002: Application of Linear Thermodynamics to the Atmospheric System.Part Ⅱ: Exemplification of Linear Phenomenological Relations in the Atmospheric System, ADVANCES IN ATMOSPHERIC SCIENCES, 19, 767-776. doi: 10.1007/s00376-002-0043-7
[14]	Ya WANG, Gang HUANG, Baoxiang PAN, Pengfei LIN, Niklas BOERS, Weichen TAO, Yutong CHEN, BO LIU, Haijie LI, 2024: Correcting Climate Model Sea Surface Temperature Simulations with Generative Adversarial Networks: Climatology, Interannual Variability, and Extremes, ADVANCES IN ATMOSPHERIC SCIENCES. doi: 10.1007/s00376-024-3288-6
[15]	Xu Yinzi, 1988: THE WIND IN THE BAROCLINIC BOUNDARY LAYER WITH THREE SUBLAYERS INCORPORATING THE WEAK NON-LINEAR EFFECT, ADVANCES IN ATMOSPHERIC SCIENCES, 5, 483-497. doi: 10.1007/BF02656793
[16]	MA Yaoming, Massimo MENENTI, Reinder FEDDES, 2010: Parameterization of Heat Fluxes at Heterogeneous Surfaces by Integrating Satellite Measurements with Surface Layer and Atmospheric Boundary Layer Observations, ADVANCES IN ATMOSPHERIC SCIENCES, 27, 328-336. doi: 10.1007/s00376-009-9024-4
[17]	LIU Liping, ZHANG Pengfei, Qin XU, KONG Fanyou, LIU Shun, 2005: A Model for Retrieval of Dual Linear Polarization Radar Fields from Model Simulation Outputs, ADVANCES IN ATMOSPHERIC SCIENCES, 22, 711-719. doi: 10.1007/BF02918714
[18]	Zeng Qingcun, Dai Yongjiu, Xue Feng, 1998: Simulation of the Asian Monsoon by IAP AGCM Coupled with an Advanced Land Surface Model (IAP94), ADVANCES IN ATMOSPHERIC SCIENCES, 15, 1-16. doi: 10.1007/s00376-998-0013-9
[19]	Liu Shida, Liu Shikuo, Xin Guojun, Liang Fuming, 1994: The Theoretical Model of Atmospheric Turbulence Spectrum in Surface Layer, ADVANCES IN ATMOSPHERIC SCIENCES, 11, 408-414. doi: 10.1007/BF02658160
[20]	Huang Ruixin, Jin Xiangze, Zhang Xuehong, 2001: An Oceanic General Circulation Model in Pressure Coordinates, ADVANCES IN ATMOSPHERIC SCIENCES, 18, 1-22. doi: 10.1007/s00376-001-0001-9

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Manuscript History

Manuscript received: 10 October 1999

Manuscript revised: 10 October 1999

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

Dependence of the AGCM Climatology on the Method of Prescribing Surface Boundary Conditions and Its Climatological Implication

1. LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029,LASG, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing 100029

Manuscript received: 1999-10-10
Manuscript revised: 1999-10-10

Abstract: By using IAP 9L AGCM, two sets of long-term climatological integration have been per-formed with the two different interpolation procedures for generating the daily surface boundary conditions. One interpolation procedure is the so-called “traditional” scheme, for which the daily surface boundary conditions are obtained by linearly interpolating between the observed monthly mean values, however the observed monthly means cannot be preserved after interpolation. The other one is the “new” scheme, for which the daily surface boundary conditions are obtained by linearly interpolating between the "artificial" monthly mean values which are based on, but are dif-ferent from the observed ones, after interpolating with this new scheme, not only the observed monthly mean values are preserved, the time series of the new generated daily values is also more consistent with the observation. Comparison of the model results shows that the differences of the globally or zonally averaged fields between these two integrations are quite small, and this is due to the compensating effect between the different regions. However, the differences of the two patterns (the global or regional geographical distributions), are quite significant, for example, the magni-tude of the difference in the JJA mean rainfall between these two integrations can exceed 2 mm/day over Asian monsoon regions, and the difference in DJF mean surface air temperature can also exceed 2oC over this region. The fact that the model climatology depends quite strongly on the method of prescribing the daily surface boundary conditions suggests that in order to validate the climate model or to predict the short-term climate anomalies, either the " new* interpolation scheme or the high frequency surface boundary conditions (e.g., daily or weekly data instead of the monthly data) should be introduced. Meanwhile, as for the coupled model, the daily coupling scheme between the different component cli?mate models (e.g., atmospheric and oceanic general circulation models) is preferred in order to partly eliminate the “climate drift” problem which may appear during the course of direct coupling.

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