Anomalous patterns of the atmospheric circulation and climate are studied corresponding to the two basic interdecadal variation modes of sea surface temperature (SST) in the North Pacific, namely, the 25-35-year mode... Anomalous patterns of the atmospheric circulation and climate are studied corresponding to the two basic interdecadal variation modes of sea surface temperature (SST) in the North Pacific, namely, the 25-35-year mode and the 7-10-year mode. Results clearly indicate that corresponding to the positive and negative phases of the interdecadal modes of SST anomaly (SSTA) in the North Pacific, the anomalous patterns of the atmospheric circulation and climate are approximately out of phase, fully illustrating the important role of the interdecadal modes of SST. Since the two interdecadal modes of SSTA in the North Pacific have similar horizontal structures, their impacts on the atmospheric circulation and climate are also analogous. The impact of the interdecadal modes of the North Pacific SST on the atmospheric circulation is barotropic at middle latitudes and baroclinic in tropical regions.展开更多
黄鳍金枪鱼是中西太平洋金枪鱼围网渔业中的重要捕捞种类之一。本文根据2003年中西太平洋金枪鱼围网生产统计及其表温数据,利用频次统计分析和地理信息软件Marine Explorer 4.0对黄鳍金枪鱼产量和单位日产量（CPUE）的时空分布进行分析...黄鳍金枪鱼是中西太平洋金枪鱼围网渔业中的重要捕捞种类之一。本文根据2003年中西太平洋金枪鱼围网生产统计及其表温数据,利用频次统计分析和地理信息软件Marine Explorer 4.0对黄鳍金枪鱼产量和单位日产量（CPUE）的时空分布进行分析,探讨其与海水表温的关系。结果显示,产量和CPUE最高的是2月份,其次是9月份,5月份为最低。高产量的范围为140-160°E、0°-5°S;CPUE高值区分布在130°E、0°-15°S,140°-160°E、0°-15°S和175°W、0°-15°S;产量经纬度重心分别为150°30′E和3°48′S。产量主要分布在海表温为28-31℃的海域,产量比重高达95.45%,其中29-30℃产量为最高,占69.54%。展开更多
The relationship between sea surface temperature (SST) east of Australia and tropical cyclone frequency over the western North Pacific (WNPTCF) is analyzed by use of observation data.The WNPTCF from June to October is...The relationship between sea surface temperature (SST) east of Australia and tropical cyclone frequency over the western North Pacific (WNPTCF) is analyzed by use of observation data.The WNPTCF from June to October is correlated negatively to spring SST east of Australia.When the spring SST is in the positive phase,a cyclonic circulation anomaly in the upper troposphere and an anticyclonic circulation anomaly in the lower troposphere prevail over the western North Pacific from June to October,concurrent with an anomalous atmospheric subsidence and an enlarged vertical zonal wind shear.These conditions are unfavorable for tropical cyclone genesis,and thus WNPTCF decreases.The negative phase of the spring SST east of Australia leads to more tropical cyclones over the western North Pacific.The spring SST east of Australia may give rise to simultaneous change in tropical atmospheric circulation via the teleconnection wave train,and then subsequently affect atmospheric circulation variation over the western North Pacific.展开更多
根据2004年5～11月我国鱿钓船在北太平洋生产数据,结合表温资料,按经纬度1°×1°的格式,利用Marine explorer 4.0 软件作图进行柔鱼钓产量及渔场与表温的关系分析.结果表明,5～7月在160°E以东海域作业,产量较低;8～1...根据2004年5～11月我国鱿钓船在北太平洋生产数据,结合表温资料,按经纬度1°×1°的格式,利用Marine explorer 4.0 软件作图进行柔鱼钓产量及渔场与表温的关系分析.结果表明,5～7月在160°E以东海域作业,产量较低;8～10月在150°～160°E海域作业,为生产作业的产量高峰期,占总产量的62.5%;11月在150°E以西海域作业,产量也较低.在150°E以西海域CPUE最高,150°～160°E中部海域次之,160°E以东海域最低.作业渔场的适宜表温呈现出季节性变化.各月适宜表温分别为:5月12～14℃;6月15～16℃;7月14～16℃;8月18～19℃;9月16～17℃;10月15～16℃;11月12～13℃.展开更多
基金supported by the National Key Programme for Developing Basic Sciences(G1998040900)the Chinese Academy of Sciences(KZCX2-203).
文摘 Anomalous patterns of the atmospheric circulation and climate are studied corresponding to the two basic interdecadal variation modes of sea surface temperature (SST) in the North Pacific, namely, the 25-35-year mode and the 7-10-year mode. Results clearly indicate that corresponding to the positive and negative phases of the interdecadal modes of SST anomaly (SSTA) in the North Pacific, the anomalous patterns of the atmospheric circulation and climate are approximately out of phase, fully illustrating the important role of the interdecadal modes of SST. Since the two interdecadal modes of SSTA in the North Pacific have similar horizontal structures, their impacts on the atmospheric circulation and climate are also analogous. The impact of the interdecadal modes of the North Pacific SST on the atmospheric circulation is barotropic at middle latitudes and baroclinic in tropical regions.
文摘黄鳍金枪鱼是中西太平洋金枪鱼围网渔业中的重要捕捞种类之一。本文根据2003年中西太平洋金枪鱼围网生产统计及其表温数据,利用频次统计分析和地理信息软件Marine Explorer 4.0对黄鳍金枪鱼产量和单位日产量（CPUE）的时空分布进行分析,探讨其与海水表温的关系。结果显示,产量和CPUE最高的是2月份,其次是9月份,5月份为最低。高产量的范围为140-160°E、0°-5°S;CPUE高值区分布在130°E、0°-15°S,140°-160°E、0°-15°S和175°W、0°-15°S;产量经纬度重心分别为150°30′E和3°48′S。产量主要分布在海表温为28-31℃的海域,产量比重高达95.45%,其中29-30℃产量为最高,占69.54%。
基金supported by the National Natural Science Foundation of China(40805029)the National Basic Research Program of China(2009CB421407)the Knowledge Innovation Program of the Chinese Academy of Sciences(IAP09302)
文摘The relationship between sea surface temperature (SST) east of Australia and tropical cyclone frequency over the western North Pacific (WNPTCF) is analyzed by use of observation data.The WNPTCF from June to October is correlated negatively to spring SST east of Australia.When the spring SST is in the positive phase,a cyclonic circulation anomaly in the upper troposphere and an anticyclonic circulation anomaly in the lower troposphere prevail over the western North Pacific from June to October,concurrent with an anomalous atmospheric subsidence and an enlarged vertical zonal wind shear.These conditions are unfavorable for tropical cyclone genesis,and thus WNPTCF decreases.The negative phase of the spring SST east of Australia leads to more tropical cyclones over the western North Pacific.The spring SST east of Australia may give rise to simultaneous change in tropical atmospheric circulation via the teleconnection wave train,and then subsequently affect atmospheric circulation variation over the western North Pacific.
文摘根据2004年5～11月我国鱿钓船在北太平洋生产数据,结合表温资料,按经纬度1°×1°的格式,利用Marine explorer 4.0 软件作图进行柔鱼钓产量及渔场与表温的关系分析.结果表明,5～7月在160°E以东海域作业,产量较低;8～10月在150°～160°E海域作业,为生产作业的产量高峰期,占总产量的62.5%;11月在150°E以西海域作业,产量也较低.在150°E以西海域CPUE最高,150°～160°E中部海域次之,160°E以东海域最低.作业渔场的适宜表温呈现出季节性变化.各月适宜表温分别为:5月12～14℃;6月15～16℃;7月14～16℃;8月18～19℃;9月16～17℃;10月15～16℃;11月12～13℃.
