熱帶太平洋鹽度對(duì)平均SST和ENSO調(diào)制作用的模擬評(píng)估和分析
發(fā)布時(shí)間:2022-01-20 01:04
通過(guò)CMIP5提供的25個(gè)工業(yè)革命前控制試驗(yàn)(piControl)模擬數(shù)據(jù)評(píng)估分析了熱帶太平洋氣候平均及兩類(lèi)El Ni(?)o (即東部EP和中部CP型El Ni(?)o)期間海表鹽度(SSS)空間結(jié)構(gòu)差異及其與海表溫度(SST)、降水和緯向流的關(guān)系。結(jié)果表明:(1)模式對(duì)于氣候平均SST、降水、SSS和緯向流的空間技巧評(píng)分依次減小,SST與SSS空間相關(guān)關(guān)系證明SSS對(duì)SST存在明顯的反饋機(jī)制。SSS與降水、SSS與緯向流的空間相關(guān)說(shuō)明降水和緯向流均影響SSS。其中,暖池、SPCZ(SouthPacific Convergence Zone)降水與同區(qū)域SSS的關(guān)系大于緯向流與SSS 的關(guān)系,而 ITCZ (Intertropical Convergence Zone)緯向流和日界線(xiàn) SSS關(guān)系大于降水與SSS的關(guān)系。(2) SSS異常變化與ENSO事件密切聯(lián)系。SSS異常EOF第一時(shí)間序列超前EP型ENSO指數(shù)10個(gè)月,可能與西風(fēng)爆發(fā)引起西太平洋暖淡水向東積聚有關(guān);SSS異常EOF第二時(shí)間序列超前CP型ENSO指數(shù)5個(gè)月,但模式模擬的超前滯后性不明顯。特別的,SPCZ區(qū)域SSS異常...
【文章來(lái)源】:南京信息工程大學(xué)江蘇省
【文章頁(yè)數(shù)】:94 頁(yè)
【學(xué)位級(jí)別】:碩士
【部分圖文】:
圖3.?1觀(guān)測(cè)、集合平均(MME)及25個(gè)CMIP5模式模擬的SST氣候平均的空間分布(單??位:°C)
差之比最接近1;?GFDL-CM3標(biāo)準(zhǔn)差之比最。ǎ埃叮。??3.?1.2海表鹽度氣候平均的分布特征??圖3.3為SSS氣候平均的空間分布圖。從觀(guān)測(cè)中發(fā)現(xiàn),暖池、赤道輻合帶??(InterTropical?Convergence?Zone,簡(jiǎn)稱(chēng)?ITCZ)、南赤道福合帶(South-Pacific??Convergence?Zone,簡(jiǎn)稱(chēng)SPCZ)為低鹽區(qū),其余為高鹽區(qū);高鹽區(qū)南半球大于??北半球,低鹽區(qū)東部大于西部。雖然模式能夠再現(xiàn)觀(guān)測(cè)海表鹽度的空間模態(tài),??但由于淡水通量、雙赤道輻合帶等問(wèn)題引起的海表鹽度模擬偏差依然存在。??就集合平均而言,氣候平均上的主要SSS偏差為東南太平洋的高鹽水區(qū)域偏東??偏淡,位于]TCZ南北分支的低鹽水區(qū)域偏淡和位于SPCZ低鹽區(qū)向東南過(guò)渡延??伸。除?GISS-E2-H?外,ACCESS1-3、?MPI-ESM-P、?IPSL-CM5B-LR、?CMCC-CMS、??14??
圖3.?3觀(guān)測(cè)、MME及25個(gè)CMIP5模式模擬的SSS氣候平均的空間分布(單位:psu)。右??上角的數(shù)值為各個(gè)模式模擬SSS的技巧評(píng)分??圖3.4為SSS氣候平均的Taylor圖,從Taylor中看出,MME相關(guān)系數(shù)最??高,為?0.89;?ACCESS1-3、?bcc-csml-lffi、?CMCC-CMS、?HadCM3、?IPSL-CM5A-MR?和??NorESMl-M的相關(guān)系數(shù)大于0.8?(6/25)。就標(biāo)準(zhǔn)差之比而言,各個(gè)模式的標(biāo)準(zhǔn)??差之比相差較大,說(shuō)明模式間對(duì)SSS氣候平均的模擬差異較大。MME和FG0ALS-s2??15??
【參考文獻(xiàn)】:
期刊論文
[1]Weak ENSO Asymmetry Due to Weak Nonlinear Air–Sea Interaction in CMIP5 Climate Models[J]. Yan SUN,Fan WANG,De-Zheng SUN. Advances in Atmospheric Sciences. 2016(03)
[2]Simulation of Salinity Variability and the Related Freshwater Flux Forcing in the Tropical Pacific: An Evaluation Using the Beijing Normal University Earth System Model(BNU-ESM)[J]. ZHI Hai,ZHANG Rong-Hua,LIN Pengfei,WANG Lanning. Advances in Atmospheric Sciences. 2015(11)
[3]Quantitative Analysis of the Feedback Induced by the Freshwater Flux in the Tropical Pacific Using CMIP5[J]. ZHI Hai,ZHANG Rong-Hua,LIN Pengfei,WANG Lanning. Advances in Atmospheric Sciences. 2015(10)
[4]Sensitivity of ENSO Variability to Pacific Freshwater Flux Adjustment in the Community Earth System Model[J]. KANG Xianbiao,HUANG Ronghui,WANG Zhanggui,ZHANG Rong-Hua. Advances in Atmospheric Sciences. 2014(05)
[5]Linkage between the dominant modes in Pacific subsurface ocean temperature and the two type ENSO events[J]. XU Kang 1,2,ZHU CongWen 2* & HE JinHai 1 1 Key Laboratory of Meteorological Disaster of Ministry of Education,Nanjing University of Information Science and Technology,Nanjing 210044,China;2 Institute of Climate Systems,Chinese Academy of Meteorological Sciences,Beijing 100081,China. Chinese Science Bulletin. 2012(26)
[6]Distinguished Effects of Interannual Salinity Variability on the Development of the Central-Pacific El Ni o Events[J]. ZHENG Fei 1,WAN Li-Ying 2,and WANG Hui 3 1 International Center for Climate and Environment Science (ICCES),Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China 2 Key Laboratory of Research on Marine Hazards Forecasting,National Marine Environmental Forecasting Center,Beijing 100081,China 3 National Meteorological Center,Beijing 100081,China. Atmospheric and Oceanic Science Letters. 2012(02)
[7]Influences of Freshwater from Major Rivers on Global Ocean Circulation and Temperatures in the MIT Ocean General Circulation Model[J]. Vikram M.MEHTA. Advances in Atmospheric Sciences. 2010(03)
本文編號(hào):3597894
【文章來(lái)源】:南京信息工程大學(xué)江蘇省
【文章頁(yè)數(shù)】:94 頁(yè)
【學(xué)位級(jí)別】:碩士
【部分圖文】:
圖3.?1觀(guān)測(cè)、集合平均(MME)及25個(gè)CMIP5模式模擬的SST氣候平均的空間分布(單??位:°C)
差之比最接近1;?GFDL-CM3標(biāo)準(zhǔn)差之比最。ǎ埃叮。??3.?1.2海表鹽度氣候平均的分布特征??圖3.3為SSS氣候平均的空間分布圖。從觀(guān)測(cè)中發(fā)現(xiàn),暖池、赤道輻合帶??(InterTropical?Convergence?Zone,簡(jiǎn)稱(chēng)?ITCZ)、南赤道福合帶(South-Pacific??Convergence?Zone,簡(jiǎn)稱(chēng)SPCZ)為低鹽區(qū),其余為高鹽區(qū);高鹽區(qū)南半球大于??北半球,低鹽區(qū)東部大于西部。雖然模式能夠再現(xiàn)觀(guān)測(cè)海表鹽度的空間模態(tài),??但由于淡水通量、雙赤道輻合帶等問(wèn)題引起的海表鹽度模擬偏差依然存在。??就集合平均而言,氣候平均上的主要SSS偏差為東南太平洋的高鹽水區(qū)域偏東??偏淡,位于]TCZ南北分支的低鹽水區(qū)域偏淡和位于SPCZ低鹽區(qū)向東南過(guò)渡延??伸。除?GISS-E2-H?外,ACCESS1-3、?MPI-ESM-P、?IPSL-CM5B-LR、?CMCC-CMS、??14??
圖3.?3觀(guān)測(cè)、MME及25個(gè)CMIP5模式模擬的SSS氣候平均的空間分布(單位:psu)。右??上角的數(shù)值為各個(gè)模式模擬SSS的技巧評(píng)分??圖3.4為SSS氣候平均的Taylor圖,從Taylor中看出,MME相關(guān)系數(shù)最??高,為?0.89;?ACCESS1-3、?bcc-csml-lffi、?CMCC-CMS、?HadCM3、?IPSL-CM5A-MR?和??NorESMl-M的相關(guān)系數(shù)大于0.8?(6/25)。就標(biāo)準(zhǔn)差之比而言,各個(gè)模式的標(biāo)準(zhǔn)??差之比相差較大,說(shuō)明模式間對(duì)SSS氣候平均的模擬差異較大。MME和FG0ALS-s2??15??
【參考文獻(xiàn)】:
期刊論文
[1]Weak ENSO Asymmetry Due to Weak Nonlinear Air–Sea Interaction in CMIP5 Climate Models[J]. Yan SUN,Fan WANG,De-Zheng SUN. Advances in Atmospheric Sciences. 2016(03)
[2]Simulation of Salinity Variability and the Related Freshwater Flux Forcing in the Tropical Pacific: An Evaluation Using the Beijing Normal University Earth System Model(BNU-ESM)[J]. ZHI Hai,ZHANG Rong-Hua,LIN Pengfei,WANG Lanning. Advances in Atmospheric Sciences. 2015(11)
[3]Quantitative Analysis of the Feedback Induced by the Freshwater Flux in the Tropical Pacific Using CMIP5[J]. ZHI Hai,ZHANG Rong-Hua,LIN Pengfei,WANG Lanning. Advances in Atmospheric Sciences. 2015(10)
[4]Sensitivity of ENSO Variability to Pacific Freshwater Flux Adjustment in the Community Earth System Model[J]. KANG Xianbiao,HUANG Ronghui,WANG Zhanggui,ZHANG Rong-Hua. Advances in Atmospheric Sciences. 2014(05)
[5]Linkage between the dominant modes in Pacific subsurface ocean temperature and the two type ENSO events[J]. XU Kang 1,2,ZHU CongWen 2* & HE JinHai 1 1 Key Laboratory of Meteorological Disaster of Ministry of Education,Nanjing University of Information Science and Technology,Nanjing 210044,China;2 Institute of Climate Systems,Chinese Academy of Meteorological Sciences,Beijing 100081,China. Chinese Science Bulletin. 2012(26)
[6]Distinguished Effects of Interannual Salinity Variability on the Development of the Central-Pacific El Ni o Events[J]. ZHENG Fei 1,WAN Li-Ying 2,and WANG Hui 3 1 International Center for Climate and Environment Science (ICCES),Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China 2 Key Laboratory of Research on Marine Hazards Forecasting,National Marine Environmental Forecasting Center,Beijing 100081,China 3 National Meteorological Center,Beijing 100081,China. Atmospheric and Oceanic Science Letters. 2012(02)
[7]Influences of Freshwater from Major Rivers on Global Ocean Circulation and Temperatures in the MIT Ocean General Circulation Model[J]. Vikram M.MEHTA. Advances in Atmospheric Sciences. 2010(03)
本文編號(hào):3597894
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