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CHARACTERISTICS OF 10-DAY MEAN surface latent heat flux VARIATIONS IN THE SCS MONSOON REGION AND POSSIBLE CONNECTIONS WITH THE SCS SUMMER MONSOON ONSET

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Acta meteorologica Sinica 1999年第4期13卷 414-425页

作者：张耀存钱永甫 Department of Atmospheric Sciences Nanjing University Nanjing 210093

The temporal and spatial variations of the ten-day mean surface latent heat flux (TMLH) have been analyzed in this paper based on the data of NCEP from January of 1979 to December of 1995 in the South China Sea (SCS) monsoon region. It is found that there exist maximum centers of TMLH standard deviation in the northwest Indochina and the Indian Peninsula as well as the western Pacific, SCS, the Indian Ocean and the Bay of Bengal, and their locations and strengths change significantly during the period of SCS monsoon onset. A positive zonal deviation of TMLH occurs first in the Indochina Peninsula, apparently earlier than that in the Indian Peninsula. The appearance of maximum positive zonal deviations of TMLH approximately coincides with the summer monsoon onset. Over the Indochina and Indian Peninsulas, the TMLH increases gradually with a small amplitude of variation before the onset of summer monsoon, and the rate of increase is significantly enhanced after the onset of the monsoon; whereas over the ocean, TMLH decreases before the monsoon onset, varies little during the period of monsoon and increases gradually after the ending of monsoon. Therefore, it seems that the surface latent heat flux plays an important role in the maintenance of the summer monsoon, and its variation is an phenomenon accompanying the onset of summer monsoon.

关键词： South China Sea monsoon surface latent heat flux characteristics of latent heat flux variations

Interdecadal Variability in Large and Small Warm Pools in Western Pacific and Their Association with Rainfall Anomalies

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Atmospheric and Oceanic Science Letters 2014年第1期7卷 56-61页

作者： ZHOU Lian-Tong Center for Monsoon System Research Institute of Atmospheric PhysicsChinese Academy of Sciences Key Laboratory of Global Change and Marine-Atmospheric Chemistry

This study investigated interdecadal variability of June–October(JJASO) the large and small warm pools in western Pacific and their association with rainfall anomalies using station and reanalysis data from 1958 to *** results indicated that the large and small warm pools in western Pacific showed an interdecadal shift around *** large warm pool years over western Pacific were found after 1986,whereas the small warm pool years were often seen throughout the periods before *** analysis results also showed that there were obvious interdecadal variability in JJASO rainfall in Southeast China and warm pool in western *** 1958–1985(small warm pool years),the decrease in rainfall was associated with tropospheric moisture divergence and sinking motion over Southeast China and warm pool in western ***,during 1986–2008(large warm pool years),the increase in rainfall was associated with tropospheric moisture convergence and ascending *** analysis showed that large warm pool contributed to the increase in surface latent heat fluxes over warm pool in the western ***,there was an increase in the amount of water vapor over Southeast China and warm pool in western Pacific,which contributed to increased rainfall in these regions.

关键词： large and small warm pools interdecadal variability surface latent heat flux

Preliminary Study on the Dynamic Variations of the surface Thermal flux before and after the M_S5.7 Earthquake of 2005 in Jiujiang City,Jiangxi Province

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Earthquake Research in China 2008年第2期22卷 175-184页

作者： Chen Meihua Deng Zhihui Wang Yu Liao Zhihui Zu Jinhua Institute of Geology China Earthquake Administration Beijing 100029 China Institute of Earthquake Science China Earthquake Administration Beijing 100036 China Nancheng Meteorological Administration Jiangxi Province Fuzhou 344700 China

The temporal and spatial variations of surface latent heat flux(SLHF)and diagnostic air temperature at 2m before and after the M_S5.7 earthquake occurring on November 26,2005 in the area between Ruichang City and Jiujiang City,Jiangxi Province are summarized in this *** is found that before the earthquake significant SLHF anomalies and air temperature anomalies occurred in the epicentral area and its *** air temperature anomalies appeared from the 2nd to the 13th of November,2005 and were concentrated at the epicentral area and in its southern *** two days later,that is,from the 4th to the 15th of November 2005,significant SLHF anomalies occurred in the epicentral area and to its northern area where many lakes are distributed along the active *** the anomalous period,the SLHF and air temperature at 2m exceeded the sum of average daily value over 26 years and 1.5 times of its mean square *** anomalies had maintained for 12 days with a peculiar distribution related to the tectonic active *** is considered that both of air temperature anomalies and SLHF anomalies are correlated to the movement of thermal flux from underground prior to *** anomalies occurred over wide regions covered with abundant water,whereas air temperature anomalies occurred over land.

关键词： Air temperature surface latent heat flux Earthquake anomaly Jiujiang earthquake Satellite remote sensing