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南海海面温度与Nio/DMI指数年际变异的相关性分析 被引量:15
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作者 陈海英 方国洪 +3 位作者 乔方利 王永刚 魏泽勋 王新怡 《海洋科学进展》 CAS CSCD 北大核心 2007年第1期20-27,共8页
利用NCEP的Reynolds最优插值海面温度产品(1981年12月-2004年10月),对南海海表温度场的年际变化与热带太平洋El Ni^no指数(Ni^no1+2,Ni^no3.4,Ni^no5和Ni^no6指数)以及印度洋的偶极子指数(DMI)进行相关性分析。研究表明南海海面温度(SST... 利用NCEP的Reynolds最优插值海面温度产品(1981年12月-2004年10月),对南海海表温度场的年际变化与热带太平洋El Ni^no指数(Ni^no1+2,Ni^no3.4,Ni^no5和Ni^no6指数)以及印度洋的偶极子指数(DMI)进行相关性分析。研究表明南海海面温度(SST)的变异与Ni^no1+2指数的变异相关性较强,南海海表温度场平均滞后Ni^no1+2指数4.77个月时,二者相关达到最大,平均为0.60;Ni^no3.4指数次之,南海海洋表层温度距平(SSTA)平均滞后Ni^no3.4指数6.67个月时,二者相关系数最大,平均为0.49。南海海表温度场对应的伴随形态进一步表明,南海随Ni^no1+2,Ni^no3.4指数出现正异常并有增暖现象,其中南海SST异常随Ni^no1+2指数变化的强度更大。并且几乎整个南海区域均超过95%的置信水平,当Ni^no1+2达到1个标准差(即异常增暖1.04℃),南海平均增暖幅度为0.16℃,越南东南外海和南海16°N以北区域SSTA增幅最大为0.20℃。表征西北太平洋海表温度场的Ni^no5和Ni^no6指数对ENSO现象的响应与南海表层温度场线性相关性不显著。研究还表明,南海海表温度场的年际变化与印度洋偶极子指数(DMI)的相关性不强,相关性仅体现在南海的卡里曼丹岛西南角的局部海域。 展开更多
关键词 南海海面温度(sst) Nino指数 偶极子指数(DMI) 年际变化 相关分析
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两种卫星遥感海面温度数据的处理技术 被引量:1
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作者 万波 陈光亮 《海洋技术》 2007年第4期66-68,共3页
论文首先通过从网上获取AVHRR的2001年海面温度月平均数据和WOA01的海面温度季度平均数据资料,然后利用fortran程序读取数据和初步处理数据,并利用matlab软件和surfer作图工具绘制了两组不同数据的等值线图,最后对图像进行了分析,对比... 论文首先通过从网上获取AVHRR的2001年海面温度月平均数据和WOA01的海面温度季度平均数据资料,然后利用fortran程序读取数据和初步处理数据,并利用matlab软件和surfer作图工具绘制了两组不同数据的等值线图,最后对图像进行了分析,对比两组海面温度分布图。 展开更多
关键词 卫星遥感 海面温度sst 数据处理
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利用卫星遥感海面温度、高度联合反演南海北部三维温度场 被引量:4
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作者 汤博 侯一筠 +1 位作者 殷玉齐 胡珀 《海洋科学》 CAS 北大核心 2019年第11期1-10,共10页
利用历史观测得到的温度剖面数据,通过严格筛选和插值,建立了南海北部的气候态垂向温度剖面。随后,利用回归统计分析的方法构建了海面温度异常(SSTA)、海面高度异常(SSHA)联合扩展温度剖面的经验回归模型,并采用卫星遥感得到的SST和SSH... 利用历史观测得到的温度剖面数据,通过严格筛选和插值,建立了南海北部的气候态垂向温度剖面。随后,利用回归统计分析的方法构建了海面温度异常(SSTA)、海面高度异常(SSHA)联合扩展温度剖面的经验回归模型,并采用卫星遥感得到的SST和SSH数据扩展了南海北部的三维海洋温度场,其时间分辨率为天,空间分辨率为0.25°×0.25°。通过与观测数据的对比研究,扩展得到的温度场可以较为准确地反映南海北部温度剖面的结构特征,并且能有效地体现出一些中尺度变化过程。结果表明,本研究反演得到的三维温度扩展场是较为可靠的,它可以作为海洋数值模型的初始场,实现现场观测数据和卫星遥感数据的互补,有助于更好地分析南海北部温度场的三维结构及变化特征。 展开更多
关键词 南海北部 卫星遥感海面温度(sst)和海面高度(SSH) 反演三维温度
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MEAN SQUARE DEVIATION ANALYSIS OF INTERANNUAL SST VARIABILITY IN TROPICAL PACIFIC AND INDIAN OCEAN
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作者 严华生 李艳 +1 位作者 樊毅 琚建华 《Journal of Tropical Meteorology》 SCIE 2002年第1期20-26,共7页
Using the SST data series in tropical ocean (20N ~ 20S, 50E ~ 80W) during 1951 ~ 1997 to calculate its monthly mean square deviation, the work obtains results showing that interannual SST variability of the Pacific is... Using the SST data series in tropical ocean (20N ~ 20S, 50E ~ 80W) during 1951 ~ 1997 to calculate its monthly mean square deviation, the work obtains results showing that interannual SST variability of the Pacific is more significant than that of the Indian Ocean, especially near the central and eastern equatorial Pacific (165W~90W, 6N~6S), where it ranges from 2C to 4C. The interannual SST variability is obvious in November and December but small in March and April. The interannual variability of 搘arm pool?SST is not so obvious as that of the eastern equatorial Pacific. However, interannual SST variability of the Indian Ocean ranges from 1C to 2C or so, being smaller than that of the Pacific. In the Indian Ocean, interannual SST variability of the Southern Hemisphere is more obvious than that of the Northern Hemisphere. According to above characteristics of interannual SST variability, the key sectors are determined. 展开更多
关键词 mean square deviation sst field high-value sector
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Variations of SST and Thermocline Depth in the Tropical Indian Ocean During Indian Ocean Dipole Events 被引量:2
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作者 SUN Shuangwen LAN Jian WANG Yi 《Journal of Ocean University of China》 SCIE CAS 2010年第2期129-134,共6页
Interannual variations in the surface and subsurface tropical Indian Ocean were studied using HadlSST and SODA datasets. Wind and heat flux datasets were used to discuss the mechanisms for these variations. Our result... Interannual variations in the surface and subsurface tropical Indian Ocean were studied using HadlSST and SODA datasets. Wind and heat flux datasets were used to discuss the mechanisms for these variations. Our results indicate that the surface and subsurface variations of the tropical Indian Ocean during Indian Ocean Dipole (IOD) events are significantly different. A prominent characteristic of the eastern pole is the SSTA rebound after a cooling process, which does not take place at the subsurface layer. In the western pole, the surface anomalies last longer than the subsurface anomalies. The subsurface anomalies are strongly correlated with ENSO, while the relationship between the surface anomalies and ENSO is much weaker. And the subsurface anomalies of the two poles are negatively correlated while they are positively correlated at the surface layer. The wind and surface heat flux analysis suggests that the thermocline depth variations are mainly determined by wind stress fields, while the heat flux effect is important on SST. 展开更多
关键词 Indian Ocean Dipole ENSO thermocline depth sst
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DIAGNOSTIC ANALYSIS OF MEAN MERIDIONAL CIRCULATION ANOMALY IN LOW LATITUDES IN RELATION TO ZONAL MEAN SST ANOMALY
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作者 程亚军 王盘兴 李丽平 《Journal of Tropical Meteorology》 SCIE 2002年第2期158-167,共10页
The mass stream function of zonal mean meridional circulation is calculated in terms of NCEP/NCAR monthly meridional wind speed and vertical velocity, and the climatic and anomalous features of zonal mean SST and meri... The mass stream function of zonal mean meridional circulation is calculated in terms of NCEP/NCAR monthly meridional wind speed and vertical velocity, and the climatic and anomalous features of zonal mean SST and meridional circulation are investigated. Results show that (1) a joint ascending branch of Northern and Southern Hadley circulation is on the side of the summer hemisphere near the equator ,being well consistent with the extremum of[]SST,and a strong descending by the winter-hemispheric side.(2)El Ni駉-related][SSTin low latitudes is an important outer-forcing source for anomaly meridional circulation, which is affected by seasonal variation of basic airflow and[]SST, and interannual and interdecadal changes of []SST. 展开更多
关键词 meridional circulation sea surface temperature anomalous relationship
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短期气候数值预测中海温和初始场作用的敏感性试验 被引量:12
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作者 赵彦 郭裕福 《应用气象学报》 CSCD 北大核心 2000年第A06期21-30,共10页
该文利用 AGCM L2 AGCM1 - 1模式 ,对两种类型的大气初始场 ( ICs)异常和海表温度( SST)异常进行了一系列的跨季度敏感性试验 ,用大量的试验结果考察了 ICs异常和 SST异常对东亚夏季 50 0 h Pa高度场和降水距平场的影响 ,得到以下主要结... 该文利用 AGCM L2 AGCM1 - 1模式 ,对两种类型的大气初始场 ( ICs)异常和海表温度( SST)异常进行了一系列的跨季度敏感性试验 ,用大量的试验结果考察了 ICs异常和 SST异常对东亚夏季 50 0 h Pa高度场和降水距平场的影响 ,得到以下主要结论 :热带东太平洋的 SST异常型对我国夏季降水有非常显著的作用 .在 El Nino型 SST异常影响下 ,我国从西南到华北地区降水距平为负 ,东南沿海到日本及其以东海域为较强的正距平 ,中心位于海上 ,当 SST异常为 La Nina型时 ,我国东南沿海的正距平区向西、向北伸展 ,中心位于江淮流域 ,强度减小 ;ICs异常对中高纬度地区降水的影响不可忽视 ,在某些地区 ,当其与某种 SST异常配置时 ,可能引起降水距平反向 ;热带东太平洋的 SST异常对全球的大气环流有着重要作用 ;相比之下 ,ICs异常的作用是局地的 ,却是重要的 ,对中高纬度地区的环流形势影响较大 . 展开更多
关键词 气候数值预测 大气初始场(ICs) 海面温度(sst)异常
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Fluctuation in Ommastrephe bartrami yield in the North Pacific
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作者 郑蕊 陈戈 《Chinese Journal of Oceanology and Limnology》 SCIE CAS CSCD 2008年第4期353-356,共4页
The fluctuation in Ommastrephe bartrami yield from 1995 to 2001 in the North Pacific was shown obvious, on which this study was conducted using data of sea surface temperature (SST), chlorophyll-a (chl-α) and sta... The fluctuation in Ommastrephe bartrami yield from 1995 to 2001 in the North Pacific was shown obvious, on which this study was conducted using data of sea surface temperature (SST), chlorophyll-a (chl-α) and statistical production. The study shows that, cool water and low food abundance caused by abnormal Kuroshio resulted in the reduction in abundance of O. bartrami, which was worsened by excessive catch and the unawareness to local fishery resources protection. 展开更多
关键词 Ommastrephe bartrami sst CHLOROPHYLL-A North Pacific Ocean RS yield fluctuation
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Analysis on Long-Term Change of Sea Surface Temperature in the China Seas 被引量:16
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作者 LIU Qinyu ZHANG Qi 《Journal of Ocean University of China》 SCIE CAS 2013年第2期295-300,共6页
Long-term change of sea surface temperature (SST) in the China Seas from 1900 to 2006 is examined based on two different observation datasets (HadlSSTI and HadSST3). Similar to the Atlantic, SST in the China Seas ... Long-term change of sea surface temperature (SST) in the China Seas from 1900 to 2006 is examined based on two different observation datasets (HadlSSTI and HadSST3). Similar to the Atlantic, SST in the China Seas has been well observed during the past 107 years. A comparison between the reconstructed (HadISSTI) and un-interpolated (HadSST3) datasets shows that the SST wanning trends from both datasets are consistent with each other in most of the China Seas. The warming trends are stronger in winter than in summer, with a maximum rate of SST increase exceeding 2.7℃ (100year)-I in the East China Sea and the Taiwan Strait during winter based on HadISSTI. However, the SST from both datasets experienced a sudden decrease after 1999 in the China Seas. The estimated trend from HadlSSTI is stronger than that fi'om HadSST3 in the East China Sea and the east of Taiwan Island, where the difference in the linear SST warming trends are as large as about 1℃ (100year)-I when using respectively HadISST1 and HadSST3 datasets. When compared to the linear winter warnling trend of the land surface air temperature (1.6℃ (100 year)-1), HadSST3 shows a more reasonable trend of less than 2.1℃( 100 year)-1 than HadISST 1 's trend of larger than 2.7℃ ( 100 year)-1 at the mouth of the Yangtze River. The restllts also indicate large uncertainties in the estimate of SST warming patterns. 展开更多
关键词 long-term linear trend sea surface temperature China Seas reconstructed data un-interpolated data UNCERTAINTIES
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中国风云卫星与海洋卫星近海SST资料融合技术及应用研究 被引量:6
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作者 苗春生 程远 +1 位作者 王坚红 王兴 《地球科学进展》 CAS CSCD 北大核心 2015年第10期1127-1143,共17页
选用美国LAPS(Local Analysis and Prediction System)数据融合系统对中国风云(FY)和海洋(HY)卫星在我国东部海域SST反演数据进行融合处理。该融合系统能够协调区域大气和下垫面海洋要素的时空特征,协调不同要素间的特征状态及匹配规律... 选用美国LAPS(Local Analysis and Prediction System)数据融合系统对中国风云(FY)和海洋(HY)卫星在我国东部海域SST反演数据进行融合处理。该融合系统能够协调区域大气和下垫面海洋要素的时空特征,协调不同要素间的特征状态及匹配规律,生成适合多要素诊断计算的区域规范化数据。针对该系统没有现成的卫星SST反演数据输入接口,对船舶站SST反演数据接口进行了数值调整;依据FY卫星及HY卫星SST数据的不同特点,尤其是随卫星轨道发生的不同时空变化,在输入卫星反演数据至LAPS系统之前,进行了多项预处理,包括对卫星反演数据异常值的判别与剔除、海陆边界要素异常梯度的鉴别与去除、不同卫星轨道坐标系网格要素的规范化处理、平滑去噪音等。经多项验证,预处理后的FY和HY卫星监测反演数据更有利于LAPS系统资料融合效果的正确性与合理性。再经LAPS系统的数据融合处理和各项验证,融合场既能保持卫星SST精细化的时空特征描述,也弥补了卫星资料非区域全覆盖的局限。将SST融合场对寒潮与冷空气过程中的东部海域海气影响进行热动力物理量时空变化诊断应用,对海面SST和感热通量的中尺度强度演变、南北空间变化差异均给出了量化描述。 展开更多
关键词 FY卫星 HY-2卫星 海面温度sst LAPS系统 数据融合
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High-resolution records of thermocline in the Okinawa Trough since about 10000 aBP 被引量:7
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作者 王吉良 SAITOYoshiki +2 位作者 OBATadamichi 翦知湣 汪品先 《Science China Earth Sciences》 SCIE EI CAS 2001年第3期193-200,共8页
The present paper uses planktonic foraminifera and their stableisotopes to study the changes in the depth of thermocline (DOT) in the Okinawa Trough since the last 10000 a based on the analysis of Core B-3GC in the no... The present paper uses planktonic foraminifera and their stableisotopes to study the changes in the depth of thermocline (DOT) in the Okinawa Trough since the last 10000 a based on the analysis of Core B-3GC in the northern Okinawa Trough, together with that of the core in the southern Okinawa Trough. As results show, the thermocline was shallow before 6400 aBP, and deepened afterward, then became shallow again from 4000 to 2000 aBP. The DOT fluctuations display a positive correlation with those of sea surface temperature (SST). In addition, the changes in the northern Okinawa Trough are similar to those in the southern trough, implying a possible connection with the variation of the Kuroshio Current. The changes of SST and DOT suggest that the Kuroshio Current changed its intensity or main axis from 4000 to 2000 aBP and around about 6400 aBP respectively. Moreover, the changes of DOT from 8200 to 6400 aBP may indicate a gradual intensification of the Kuroshio Current. 展开更多
关键词 Okinawa Trough depth of thermocline (DOT) sea surface temperature (sst) Kuroshio Current PLANKTONIC FORAMINIFERA stable isotopes
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