A preliminary analysis on the distribution characteristics of the air-sea latent heat flux over the SCS and its impact on the onset of southwest monsoon

WANG Li-juan; WANG Hui; YAN Jun-yue; ZHANG Zeng-hai

Article Contents

Article Navigation > Haiyang Xuebao > 2008 > 30(1): 20-30

WANG Li-juan, WANG Hui, YAN Jun-yue, ZHANG Zeng-hai. A preliminary analysis on the distribution characteristics of the air-sea latent heat flux over the SCS and its impact on the onset of southwest monsoon[J]. Haiyang Xuebao, 2008, 30(1): 20-30.

Citation:

PDF( 1900 KB)

A preliminary analysis on the distribution characteristics of the air-sea latent heat flux over the SCS and its impact on the onset of southwest monsoon

1.
Chinese Academy of Meteorology Science, Beijing 100081, China
2.
The Laboratory of Climate Study of China Meteorological Administration, National Climate Center, Beijing 100081, China
3.
The National Meteorological Center, Beijing 100081, China

Received Date: 2007-08-16
Rev Recd Date: 2007-10-12

Abstract

Abstract

The temporal and spatial distribution characteristics of the air-sea latent heat flux (LHF) over the South China Sea (SCS) in the early and late monsoon years have been analyzed based on the daily RE_NCEP data of LHF from January of 1982 to December of 2001.In order to diagnose the impacts of LHF on the summer southwest monsoon, the correlation coef ficient is respectively calculated between LHF and 850hPa wind over the northern and southern SCS.It concludes that the abnormal LHF over the northern SCS(13°~22°N, 105°~120°E) is opposite to that over the southern (5°~13°N, 100°~120°E) from December in last year to March whether in early monsoon years or the late ones.Additionally, in contrast of the late monsoon years, the LHF over the SCS takes on the opposite abnormity in the early ones.From winter to early spring in the early (late) monsoon years, the abnormal LHF over the northern SCS is positive (negative), while the one over the southern SCS is negative (positive); In the other seasons, the positively abnormal LHF lasts longer (shorter) with the monsoon weaker (stronger).Furthermore, the LHF from winter to early spring over the northern SCS is positively correlated with the southwest summer monsoon.When the abnormal LHF is positive (negative), the southwest monsoon early (late) breaks out and becomes stronger (weaker) over the northern SCS.Because the negative (positive) SSTA makes the thermal situation in the SCS much more different from its neighborhood land in 0~3 months later than the LHF.
- South China Sea,
- air-sea latent heat flux,
- southwest monsoon

FullText(HTML)

References(29)

References

李崇银.亚洲季风气候若干问题研究近况.热带气象[J].1988,4(3):203-215.

丁一汇,李崇银.南海季风爆发和演变及其与海洋的相互作用[M].北京:气象出版社.1999.

DING Yi-hui,LI Chong-yin,LIU Yan-ju.Overview of the South China Sea monsoon experiment[J].Advances in Atmospheric Sciences.2004,21(3):343-360.

任雪娟,钱永甫.南海地区的潜热输送与我国东南部降水的要相关分析[J].海洋学报,2000,22(2):25-33.

WU Ren-guang,KIRTMAN B P,PEGION K.Surface latent heat flux and its relationship with sea surface temperature in the national centers for environmental prediction climate forecast system simulations and retrospective forecasts[J].Geophys Res Lett,2007,34:L17712.doi: 10.1029/2007GL030751.

REN Xue-juan,QIAN Yong-fu.Basic climatological features of air-sea heat exchanges in the south China Sea(SCS)region and their relations with the SCS monsoon[J].Acta Meteor Sinica,1999.13(4):426-438.

程志强.南海海-气热交换的热通量分布[J].热带海洋,1996,15(2):74-48.

王桂华,黄韦艮,王辉.利用HOAPS资料研究南海海气界面热通量时空分布[J].海洋学报,2006,28(4):1-8.

ZHANG Yao-cun,QIAN Yong-fu.Characteristics of 10-day Mean sulfate latent heat flux variations in the SCS monsoon region and possible connections with the SCS summer monsoon onset[J].Acta Meteor Sinica,1999,13(4):414-425.

ZHANG Yao-cun,QIAN Yong-fu.Characteristics of 10-day mean surface sensible heat flux variations in the SCS monsoon region and possible connections with the SCS summer monsoon onset[J].Acts Meteotologica Sinica,1999,13(1):11-20.

ZHANG Yao-cun,QIAN Yong-fu.Mechanism of thermal features over the Indo-China peninsula andpPossible effects on the onset of the South China Sea monsoon[J].Advances in Atmospheric Sciences,2002,19(5):885-900.

闫俊岳,姚华栋,李江龙,等.1998年南海季风爆发期间近海面层大气湍流结构和通量输送的观测研究[J].气候与环境研究,2000,5 (4):447-458.

闫俊岳,姚华栋,李江龙,等.2000年南海季风爆发前后西沙海域海气热量交换特征[J].海洋学报,2003,5(4):447-458.

闫俊岳,唐志毅,姚华栋,等.2002年南海西南季风爆发前后西沙海区海-气界面的通量变化[J].地球物理学报.2005,49(5):1000-1010.

蒋国荣,何金海.王东晓.等.南海夏季风爆发前后海-气界面热交换特征[J].气象学报,2004,62(2):189-198.

闫俊岳.刘久萌,蒋国荣,等.南海海-气通量交换研究进展[J].地球科学进展,2007,22(7):685-697.

丁一汇.高等天气学[M].北京:气象出版社,2005.

孙淑清,陈隽.异常东亚季风对夏季南海地区风场和热力场的影响[J].气候与环境研究,2000,4(5):400-416.

陈隽,金祖辉.影响南海夏季风爆发因子的诊断研究[J].气候与环境研究,2001,6(1):1-19.

WANG Chun-zai,WANG Wei-qiang.WANG Dong-xiao,et al.Interannual variability of the South China Sea associated with El Nino[J].Journal of Geophysical Reaearch,2006,11:699-710.

HE Jin-hai,WEN Min,DING Yi-hui,et al.Possible mechanism of the effect of convection over Asian-Australian"land bridge"on the East Asian summer monsoon onset[J].Science in China Series D(Earth Science),2006,49:1223-1232.

张增海,姜华,王辉,等.南海西南季风期NCEP2湍流热通量的质量分析[J].海洋学报.2006,28(2):29-38.

WANG Bin,LIN Ho,YONG Sheng,et al.Denfinition of South China Sea monsoon onset and commencement of the East Asia summer monsoon[J].Journal of Climate,2004,17:699-710.

MICHAEL A B,CHRIS W Fll,ZENG Xu-bin,et al.Which bulk aerodynamic algorithms are least problematic in computing ocean surface turbulent Fluxes?[J].Journal of Climate,2003,16:619-635.

毛江玉,谢安,叶谦,等.海温及其变化对南海夏季风爆发的影响[J].气象学报,2000,58(5):556-568.

RUTGERSSON A,CARLSSON B,SMEDMAN A S.Modelling new processes controlling the turbulent fluxes over sea[C]//14th Conference on Interactions of the Sea and Atmosphere.Beijing:American Meteorology Society,2006:77.

佟景全,王静,齐义泉.基于卫星高度计资料分析南海热含量的年际变化特征[J].地球物理学报,2006,49(6):1651-1656.

褚健婷,陈锦年,许兰英.海-气界面热通量算法的研究及在中国近海的应用[J].海洋与湖沼,2006,137(16):481-487.

陈奕德,蒋国荣,张韧,等.2002年南海夏季风爆发期间南海北部海气通量分析与比较[J].大气科学,2005,29(5):761-770.

Relative Articles

Supplements(0)

Cited By

Proportional views