Spatial scaling links the information across scales:A Review of Methodologies Used in Regional Eco-hydrological Modeling
Received date: 2007-12-05
Online published: 2008-02-10
Spatial scaling has been one of the fundamental problems in eco-hydrological modeling over the past two decades. The input parameters for regional climate change impact research operating at a 1~50 km resolution cannot be directly derived from GCM (general circulation model) operating at a 100~500 km resolution. Conversely, large scale eco-hydrological models can only simulate the grid-based integrated response instead of directly parameterizing the small-scale earth surface processes. Therefore, upscaling methodology is required to scale up the information derived from the small-scale to the information required for the large-scale models; and downscaling methodology is required to scale down the information from large scale model, i.e. GCM, to the information required for regional eco-hydrological models, which operate at a much smaller scale than the one for a GCM. Several methodologies have been developed over the past two decades to undertake these non-trivial upscaling and downscaling tasks. In this paper, we discuss how the upscaling and downscaling schemes have been implemented in eco-hydrological modeling.
Two primary downscaling schemes are reviewed in this paper. The first is empirical statistical downscaling, which disaggregates the information through establishing the empirical statistical relationships that link the information between small scale and large scale by comparing the large-scale values with long-term historical observation. The second scheme is dynamic downscaling, which disaggregates information by downscaling the information generated from dynamically coupling a RCM(regional climate model) with a GCM. Two upscaling schemes, empirical statistical upscaling and mosaic upscaling, are examined in this paper. Empirical statistical upscaling is achieved by assuming that the sub-grid variability of environmental variables can be represented by a probability density function (PDF), such as the VIC (variable infiltration capacity) model and the gamma distribution model. Mosaic upscaling scheme subdivides a big grid into several patches and the environmental variables are evaluated separately for each patch, and then averaged. We suggest an approach that combines the mosaic and PDF scheme for upscaling the modeling outputs from catchment to global scales.
Key words: Eco-hydrological modeling; Spatial scaling; Downscaling; Upscaling
Wu Jianghua,Zhao Pengxiang,Nigel Roulet,Jonathan Seaquist,Peng Changhui . Spatial scaling links the information across scales:A Review of Methodologies Used in Regional Eco-hydrological Modeling[J]. Advances in Earth Science, 2008 , 23(2) : 129 -141 . DOI: 10.11867/j.issn.1001-8166.2008.02.0129
[1] Milkereit B,Eaton D. Imaging and interpreting the shallow crystalline crust [J]. Tectonophysics,1998,286: 5-18.
[2] Salisbury M H,Milkereit B,Bleeker B. Seismic imaging of massive sulfide deposits,Part I: Rock properties [J]. Economic Geology,1996,91: 821-828.
[3] Milkereit B,Eaton D,Wu J,et al. Seismic imaging of massive sulfide deposits,Part II: Reflection seismic profiling [J]. Economic Geology,1996,91: 829-834.[4] Eaton D,Guest S,Milkereit B,et al. Seismic imaging of massive sulfide deposits,Part III: Borehole seismic imaging of near-vertical structures [J]. Economic Geology,1996,91: 835-840.
[5] Salisbury M,Eaton D,Bleeker W,et al. Seiasmic prospecting for massive sulphides [EB/OL]. http:∥www.mar.dfo-mpo.gc.ca/science/review/e/pdf/seismic_prospecting.pdf,2000.
[6] Eaton D W,Milkereit B,Salisbury M. Seismic methods for deep mineral exploration: Mature technologies adapted to new targets [J]. The Leading Edge,2003,22(6): 580-585.
[7] Salisbury M,Snyder D. Mineral Deposits of Canada [EB/OL]. http:∥gsc.nrcan.gc.ca/mindep/method/seismic/index_e.php,2006.
[8] Milkereit B,Berrer E K,King A R,et al. Development of 3-D seismic exploration technology for deep nickel-copper deposits-A case history from the Sudbury basin,Canada [J]. Geophysics,2000,65(6): 1 890-1 899.
[9] Yang Wencai,Li Youming,Li Shixiong. Application of Seismic Tomography [M]. Beijing: The Geological Publishing House,1993.[杨文采,李幼铭,李世雄.应用地震层析成像[M].北京:地质出版社,1993.]
[10] Xu Mingcai,Gao Jinghua,Chai Mingtao,et al. Research of seismic method for base metal exploration [J]. Geological Exploration for Non-ferrous Metals,1997,6(4):232-237.[徐明才,高景华,柴铭涛,等.金属矿地震勘查的方法技术[J].有色金属矿产与勘查,1997,6(4):232-237.]
[11] Xu Mingcai,Gao Jinghua,Chai Mingtao,et al. A study of seismic method for detecting concealed metallic deposits [J]. Geophysical & Geochemical Exploration,1997,21(6): 468-474. [徐明才,高景华,柴铭涛,等.寻找隐伏金属矿的地震方法技术研究[J].物探与化探,1997,21(6):468-474.]
[12] Eaton D W. Weak elastic-wave scattering from massive sulfide orebodies [J]. Geophysics,1999,64(1): 289-299.
[13] Gao Xing. Advance and Review in seismic tomography research [J]. Progress in Geophysics,2000,15(4): 41-45.[高星.地震层析成像研究的回顾与展望[J].地球物理学进展,2000,15(4):41-45.]
[14] Cheng Gu,Ma Zaitian,Geng Jianhua,et al. A review on the growth of seismic tomography [J]. Progress in Exploration Geophysics,2002,25(3): 6-12.[成谷,马在田,耿建华,等.地震层析成像发展回顾[J].勘探地球物理进展,2002,25(3):6-12.]
[15] Xu Mingcai,Gao Jinghua,Rong Lixin,et al. An experimental study of seismic scattering event method in the Caijiaying polymetallic ore district [J]. Geophysical & Geochemical Exploration,2003,27(1): 49-54.[徐明才,高景华,荣立新,等.散射波地震方法在蔡家营多金属矿区的试验研究[J].物探与化探,2003,27(1):49-54.]
[16] Bohlen T,Muller C,Milkereit B. Elastic seismic wave scattering from massive sulfide orebodies: On the role of composition and shape [C]∥Eaton D,Milkereit B,Salisbury M,eds. Hardrock Seismic Exploration. Society of Exploration Geophysicists. Tulsa,Oklahoma,2003: 70-89.
[17] Xu Mingcai,Gao Jinghua,Rong Lixin,et al. Application prospects of the seismic method as discussed from the experimental effects of the method for metal exploration [J]. Geology in China,2004,31(1): 108-112.[徐明才,高景华,荣立新,等.从金属矿地震方法的试验效果探讨其应用前景[J].中国地质,2004,31(1):108-112.]
[18] Xu Mingcai,Gao Jinghua,Rong Lixin,et al. Combing exploration technique of the ground seismic tomography and the high-resolution seismic method [J]. Geology and Prospecting,2005, 41(4): 83-87.[徐明才,高景华,荣立新,等.地面地震层析成像和高分辨率地震联合勘探技术[J].地质与勘探,2005,41(4):83-87.]
[19] Lei Dong,Hu Xiangyun. Review of seismic tomography methods [J]. Journal of Seismological Research,2006,29(4): 418-426.[雷栋,胡祥云.地震层析成像方法综述[J].地震研究,2006,29(4):418-426.]
[20] Li Canping,Liu Xuewei,Wang Xiangchun,et al. Seismic wave scattering therory,scattering characteristics and its application [J]. Progress in Exploration Geophysics,2005,28(2): 81-89.[李灿苹,刘学伟,王祥春,等.地震波的散射理论和散射特征及其应用 [J].勘探地球物理进展,2005,28(2):81-89.][21] Gou Limin,Liu Xuewei,Lei Peng,et al. Review of seismic survey in mining exploration: Theory and reflection seismic methods [J]. Progress in Exploration Geophysics,2007,30(1): 16-24,46.[勾丽敏,刘学伟,雷鹏,等.金属矿地震勘探技术方法研究综述[J].勘探地球物理进展,2007,30(1):16-24,46.][22] Zhao D P,Lei J S,Inoue T,et al. Deep structure and origin of the Baikal rift zone [J]. Earth and Planetary Science Letters,2006,243: 681-691.
[23] Shomali Z H,Roberts R G,Pedersen L B,et al. Lithospheric structure of the Tornquist zone resolved by nonlinear P and S teleseismic tomography along the TOR array [J].Tectonophysics,2006,416: 133-149.
[24] Lei J S,Zhao D P. Teleseismic P-wave tomography and the upper mantle structure of the central Tien Shan orogenic belt [J]. Physics of the Earth and Planetary Interiors,2007,162: 165-185.
[25] Zhao D P. Seismic images under 60 hotspots: Search for mantle plumes [J]. Gondwana Research,2007,12:335-355.
[26] Milkereit B,Green A,the Sudbury Working Group. Deep geometry of the Sudbury Structure from seismic reflection profiling [J]. Geology,1992,20:807-811.
[27] Milkereit B,Berrer E K,Watts A,et al. Development of 3-D seismic exploration technology for Ni-Cu deposits,Sudbury Basin [C]∥Gubins A G,eds. Proceeding of Exploration 97: Fourth Decennial Conference on Mineral Exploration.GEO/FX,1997:439-448.
[28] Roy B,Clowes R M. Seismic and potential-field imaging of the Guichon Creek batholith,British Columbia,Canada,to delineate structures hosting porphyry copper deposits [J]. Geophysics,2000,65(5): 1 418-1 434.
[29] Salisbury M,Harvey C,Matthews L. The acoustic properties of ores and host rocks in hardrock terranes [C]∥Eaton D,Milkereit B,Salisbury M,eds. Hardrock Seismic Exploration. Society of Exploration Geophysicists. Tulsa,Oklahoma,2003:9-19.
[30] Adam E,Perron G,Arnold G,et al. 3D seismic imaging for VMS deposit exploration,Matagami,Quebec [C]∥Eaton D,Milkereit B,Salisbury M,eds. Hardrock Seismic Exploration. Society of Exploration Geophysicists.Tulsa,Oklahoma,2003:229-246.
[31] Calvert A J,Perron G,Li Y. A comparison of 2D seismic lines shot over the Ansil and Bell Allard mines in the Abitibi Greenstone belt [C]∥Eaton D,Milkereit B,Salisbury M,eds. Hardrock Seismic Exploration. Society of Exploration Geophysicists.Tulsa,Oklahoma,2003:164-177.
[32] Bellefleur G,Matthews L,Roberts B,et al. Downhole seismic imaging of the Victor kimberlite,James Bay Lowlands,Ontario: A feasibility study [EB/OL].http:∥dsp-psd.pwgsc.gc.ca/Collection/M44-2005-C1E.pdf,2005.
[33] Salisbury M H,Milkereit B,Ascough G,et al. Physical properties and seismic imaging of massive sulfides [J]. Geophysics,2000,65(6): 1 882-1 889.
[34] Gingerich J C,Matthews L W,Peshko M J. The development of new exploration technologies at Noranda: Seeing more with hyperspectral and deeper with 3-D seismic [J]. CIM Bulletin,2002,95: 56-61.
[35] Drummond B J,Goleby B R,Owen A J,et al. Seismic reflection imaging of mineral systems: Three case histories [J]. Geophysics,2000,65(6):1 852-1 861.[36] Calvert A J,Li Y X. Seismic reflection imaging over a massive sulfide deposit at the Matagami mining camp,Qubec [J]. Geophysics,1999,64(1): 24-32.
[37] Roberts B,Zaleski E,Perron G,et al. Seismic exploration of the Manitouwadge Greenstone Belt,Ontario: A case history [C]∥Eaton D,Milkereit B,Salisbury M,eds. Hardrock Seismic Exploration. Society of Exploration Geophysicists. Tulsa,Oklahoma,2003:110-126.
[38] Stevenson F,Higgs R M A,Durrheim R J. Seismic imaging of precious and Base-metal deposit in Southern Africa [C]∥Eaton D,Milkereit B,Salisbury M,eds. Hardrock Seismic Exploration. Society of Exploration Geophysicists. Tulsa,Oklahoma,2003:141-156.
[39] Eaton D,Milkereit B,Salisbury M,et al. Hardrock seismic exploration [C]∥Society of Exploration Geophysicists.Tulsa,Oklahoma,2003.
[40] Lü Qingtian,Shi Danian,Zhao Jinhua,et al. Seismic method for deeper mineral exploration: Problems and prospects—A case study of tongling ore district [J]. Geological Bulletin of China,2005,24(3): 211-218.[吕庆田,史大年,赵金花,等.深部矿产勘查的地震学方法:问题与背景[J].地质通报,2005,24(3):211-218.]
[41] Tang Kuilian. Relationship and its significance between energy minerals and metal,nonmetal minerals [J]. Geological Science and Technology Abroad,1995,139(3):1-11.[汤葵联. 能源矿产与金属、非金属矿产的相互关系及其重要意义[J].国外地质科技,1995,139(3):1-11.]
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