Climatology of Indonesian Maritime Continent

本研究的目的是收集印尼气象和地球物理局（BMG）过去三十年来所累积的气象参数数据，如降雨量，并将其数字化，作为手写或打字记录，并在对连续性和可靠性进行效用检查后，产生一个有用的数据库，以填补印尼海洋大陆的气候空白。在第一个财政年度（1996年），调查人员访问了BMG的中央办事处和十个区域办事处，并调查了每个办事处的业务观察情况（仪器准确性、连续性、记录方法等）。在技术评估和应用机构（BPPT）达成了一项关于协作数据收集和分析的执行协议。本文收集了160个站点30年（1961- 1990年）的日雨量资料，并将其数字化。在BPPT、万隆工学院（ITB）、京都大学、东京大学等进行了数据效用的初步调查。在第二会计年度（1997年），通过原始或其他记录补充或纠正了上一年建立的数据库中存在的缺失和不确定数据。其他时期（1961年以前和1990年以后）、其他参数（每小时降雨量、地面压力和温度等）和其他地点（包括非bmg站）的数据也被收集，特别是在西爪哇和西苏门答腊省。所有的数据都被安装在京都大学和BPPT的电脑上，并与其他机构如东京大学、ITB等的研究者一起进行分析。从数据库分析得到的初步结果如下：气候学基于平均季节降水变化；雨季的开始和结束及其与卫星观测云活动的差异；E1 Nino年降水延迟、减少及历年降水增加的统计描述；年际降水变化与季节内和赤道波样变化活动的相关性等。少

The objective of this study is to collect and digitalize data of meteorological parameters such as rainfall for last three decades which have been accumulated by the Indoneshian Meteorogical and Geophysical Agency (BMG) as hand-or type-writing records, and to produce a useful database after utility checks on continuity and reliability which should fulfilll climatological blanks over the Indonesian maritime continent.In the first fiscal year (1996), investigators visited the central office and ten regional offices of BMG,and surveyed the status of operational observations (instrumental accuracy, continuity, recording method, etc.) at each offices. An implementing agreement on collaborative data collection and analysis was made at the Agency for Assessment and Application of Techonology (BPPT). Daily rainfall data at 160 stations for a period of thirty yeas (1961-90) were collected and digitalized from data available at the central office of BMG.Preliminary investigations on data utility … More were carried out at BPPT,Bandung Institute of Tecnology (ITB), Kyoto University, University of Tokyo, etc.In the second fiscal year (1997), lacked and uncertain Data included in the database constructed in the previous year were supplemented or corrected by original or other records. data for other periods (before 1961 and after 1990), other parameters (hourly rainfall, surface pressure and temperature, etc.) and other locations (including non-BMG stations) were also party collected, in particular in West Jawa and West Sumatera Privinces. All the data were installed on computers at Kyoto University and BPPT,and analyzed together with inversigators of other institutions such as University of Tokyo, ITB,etc.Early results obtained from analysis of the database are as follows : climatology based on mean seasonal variations of rainfall ; onset and withdrawl of rainy season and their differences from cloud activities as seen by satellite observations ; statistical descriptions on delay and decrease of rainfall in E1 Nino years, and on increase in each preceeding years ; correlations between interannual rainfall variations and activities of intraseasonal and equatorial-wavelike variations ; etc. Less