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过去本站是用EL电接风向风速仪观测和记录风向风速的,近两年改成了EN风数据仪以后,不少测站都发现容易漏记飑线现象。经分析发现,EN风数据仪记录风向风速是每一个定时正点和非定时正点打印一次风向风速,同EL电接风向风速仪比较,很明显的区别就是,它缺乏风向风速的连续记录,不能把风向风速随时问的变化完整地记录下来。当有飑线过境时,就很容易遗漏掉。但是,只要掌握了其中的诀窍,飑线漏记现象还是可以避免的。 相似文献
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Distinguished Effects of Interannual Salinity Variability on the Development of the Central-Pacific El Nino Events
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El Nio events in the central equatorial Pacific (CP) are gaining increased attention,due to their increasing intensity within the global warming context.Various physical processes have been identified in the climate system that can be responsible for the modulation of El Nio,especially the effects of interannual salinity variability.In this work,a comprehensive data analysis is performed to illustrate the effects of interannual salinity variability using surface and subsurface salinity fields from the Met Office ENSEMBLES (EN3) quality controlled ocean dataset.It is demonstrated that during the developing phase of an El Nio event,a negative sea surface salinity (SSS) anomaly in the western-central basin acts to freshen the mixed layer (ML),decrease oceanic density in the upper ocean,and stabilize the upper layers.These related oceanic processes tend to reduce the vertical mixing and entrainment of subsurface water at the base of the ML,which further enhances the warm sea surface temperature (SST) anomalies associated with the El Nio event.However,the effects of interannually variable salinity are much more significant during the CP-El Nio than during the eastern Pacific (EP) El Nio,indicating that the salinity effect might be an important contributor to the development of CP-El Nio events. 相似文献
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1引言
EN型测风数据处理仪(下称EN型风)在黑龙江使用多年来出现了一些故障,通过故障实例,分析形成原因,并找出处理方法。2风向打印77实例:本人在2002年的5月14日,6月17日,8月18日,2003年5月20日,对某EN型风进行鉴定处理时,多次发现风向打印77的故障。原因分析:风向打印77的故障,是EN型风出现次数最多的故障。 相似文献
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介绍当EN型数据测风仪出现风向为“77”的故障时如何用简单实用的方法找出故障部位并进行故障修理的做法. 相似文献
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Distinguished Effects of Interannual Salinity Variability on the Development of the Central-Pacific El Ni o Events
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《大气和海洋科学快报》2012,(2)
El Nio events in the central equatorial Pacific (CP) are gaining increased attention,due to their increasing intensity within the global warming context.Various physical processes have been identified in the climate system that can be responsible for the modulation of El Nio,especially the effects of interannual salinity variability.In this work,a comprehensive data analysis is performed to illustrate the effects of interannual salinity variability using surface and subsurface salinity fields from the Met Office ENSEMBLES (EN3) quality controlled ocean dataset.It is demonstrated that during the developing phase of an El Nio event,a negative sea surface salinity (SSS) anomaly in the western-central basin acts to freshen the mixed layer (ML),decrease oceanic density in the upper ocean,and stabilize the upper layers.These related oceanic processes tend to reduce the vertical mixing and entrainment of subsurface water at the base of the ML,which further enhances the warm sea surface temperature (SST) anomalies associated with the El Nio event.However,the effects of interannually variable salinity are much more significant during the CP-El Nio than during the eastern Pacific (EP) El Nio,indicating that the salinity effect might be an important contributor to the development of CP-El Nio events. 相似文献
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EN1型测风仪是1991年国家气象局正式规定列为气象仪器.它具有功耗低、可靠性高、功能多等特点在各台站被广泛使用.EN1型测风仪由于使用时间久,出现了一些线路老化问题,在此就台站反映比较集中的问题进行简要分析. 相似文献