Diurnal Rainfall Propagation Relate to Cold Surge-Cold Tongue Interaction over The Northern Coast of West Java

International Conference On Tropical Meteorology And Atmospheric Sciences

生态环境科学;原子能学

Yulihastin, E.^1^3 ; Hadi, T.W.^1 ; Ningsih, N.S.^2

Atmospheric Sciences Research Group, Faculty of Earth Sciences and Technology, Bandung Institute of Technology, Bandung

40132, Indonesia^1

Oceanography Sciences Research Group, Faculty of Earth Sciences and Technology, Bandung Institute of Technology, Bandung

40132, Indonesia^2

Center of Atmospheric Science and Technology, National Institute of Aeronautics and Space, Bandung

40173, Indonesia^3

关键词: B-patterns;    Diurnal cycle;    Diurnal rainfall;    Morning rainfall;    Normal condition;    Rainfall systems;    Reanalysis;    Temperature data;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/303/1/012007/pdf
DOI  :  10.1088/1755-1315/303/1/012007

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Interaction of the diurnal cycle of rainfall systems between land and sea were investigated by hourly rainfall of 3B41RT TRMM dataset, daily SST dataset from OISST, 6- hourly wind and temperature data from NCEP-NCAR Reanalysis, during period of NDJFM 2000-2016. The results showed that the diurnal cycle of rainfall from sea to land and from land to sea randomly occurred on four combinations of CENS-CT, NCENS-CT, CENS-NCT, NCENS-NCT. Diurnal rainfall in northern coast of West Java for normal conditions without CENS-CT has two maximas, namely late afternoon and early morning rainfall. CENS-CT interaction changes the normal diurnal rainfall pattern into three diurnal rainfall systems: diurnal rainfall with propagate B pattern which is identified by the afternoon continous to morning rainfall and there is an offshore propagation from sea to land that occurred in the morning, diurnal rainfall with a nonpropagate pattern, namely morning rainfall which has increased intensity and duration while afternoon rainfall is minimum, diurnal rainfall with propagate A pattern which experienced rainfall from land to sea and there was a merger between the afternoon rainfall system over the land and the morning rainfall system over the sea.