| CHARACTERISTICS OF THE NORTHERN HEMISPHERE 500hPa DIABATIC HEAT FLOW FIELD IN YEARS OF EL NINO AND ANTI-EL NINO |
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| 作者姓名： | Zhang Jiji Li Yueqing Lei Zhaochong Sun Zhaobo |
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| 作者单位： | State Meteorological Administration Beijing 100081，Nanjing Institute of Meteorology，Nanjing 210004，Nanjing Institute of Meteorology，Nanjing 210004，Nanjing Institute of Meteorology，Nanjing 210004 |
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| 摘 要： | In this paper,by using spectral method,the monthly-and seasonal-scale atmospheric diabatic heat flow(ADHF)departure fields are diagnosed in the period of 1964—1985 with 6 El Nino years and 6 anti-El Nino years over theNorthern hemisphere(NH).The results show that El Nino phenomena have pronounced influence on the ADHF depar-ture fields.The response of atmosphere exhibits a preferred arrangement of organizing positive and negative departurecenters at low,middle and high latitudes.In anti-El Nino years,the response has the same forms as in El Nino years,but departure centers are opposite in phase.Furthermore,ADHF departure shows low-frequency oscillation in El Ninoyears and anti-El Nino years.The center of difference in departure between El Nino and anti-El Nino years displays abi-monthly oscillation.Finally,through air-sea correlation analysis,it is pointed out that the SST anomaly is the most important cause forADHF anomaly.
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| 收稿时间： | 1990/5/28 0:00:00 |
CHARACTERISTICS OF THE NORTHERN HEMISPHERE 500hPa DIABATIC HEAT FLOW FIELD IN YEARS OF EL NINO AND ANTI-EL NINO |
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| Zhang Jiji,Li Yueqing,Lei Zhaochong,Sun Zhaobo.CHARACTERISTICS OF THE NORTHERN HEMISPHERE 500hPa DIABATIC HEAT FLOW FIELD IN YEARS OF EL NINO AND ANTI-EL NINO[J].Acta Meteorologica Sinica,1992,6(2):159-169. |
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| Authors: | Zhang Jiji Li Yueqing Lei Zhaochong and Sun Zhaobo |
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| Institution: | Zhang Jijia State Meteorological Administration,Beijing 100081 Li Yueqing Lei Zhaochong Sun Zhaobo Nanjing Institute of Meteorology,Nanjing 210004 |
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| Abstract: | In this paper,by using spectral method,the monthly-and seasonal-scale atmospheric diabatic heat flow(ADHF) departure fields are diagnosed in the period of 1964-1985 with 6 El Nino years and 6 anti-El Nino years over the Northern hemisphere(NH).The results show that El Nino phenomena have pronounced influence on the ADHF departure fields.The response of atmosphere exhibits a preferred arrangement of organizing positive and negative departure centers at low,middle and high latitudes.In anti-El Nino years,the response has the same forms as in El Nino years,but departure centers are opposite in phase.Furthermore,ADHF departure shows low-frequency oscillation in El Nino years and anti-El Nino years.The center of difference in departure between El Nino and anti-El Nino years displays a bimonthly oscillation.Finally,through air-sea correlation analysis,it is pointed out that the SST anomaly is the most important cause for ADHF anomaly. |
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| Keywords: | El Nino and anti-El Nino ADHF field air-sea correlation |
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