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首页> 外文会议>Asian conference on remote sensingACRS >UTILIZATION OF SRTM V3 AND ZONAL ANALYSIS FOR STUDYING THE EFFECTS OF LOCATIONAL AND TOPOGRAPHICAL FACTORS TOWARDS PRECIPITATION IN JAWA TENGAH AND D.I. YOGYAKARTA, INDONESIA
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UTILIZATION OF SRTM V3 AND ZONAL ANALYSIS FOR STUDYING THE EFFECTS OF LOCATIONAL AND TOPOGRAPHICAL FACTORS TOWARDS PRECIPITATION IN JAWA TENGAH AND D.I. YOGYAKARTA, INDONESIA

机译：SRTM V3的利用与区间分析研究Jawa Tengah和D.I的沉淀效果Yogyakarta，印度尼西亚

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摘要

Precipitation in Jawa Tengah and Daerah Istimewa Yogyakarta (DIY) formed as rainfall have spatial and temporal variation as a result of monsoon which blows periodically and variability of its topographical condition. The normal condition of rainfall in Indonesia is represented by Zone of Season (ZOM). ZOM was made by Meteorological, Climatological, and Geophysical Agency (BMKG) based on homogenity of rainfall pattern in a certain area for 30 years which has clear distinction between dry and rainy season periods. The purpose of this research is to study the effects of locational and topographical factors (slope, elevation, and aspect) towards precipitation in yearly and seasonal (DJF; MAM; JJA; SON) periods in Jawa Tengah and DIY based on ZOM-derived rainfall data for 1981-2010. Methodology for studying the effects locational and topographical factors towards precipitation in yearly and seasonal periods is stepwise linear regression. ZOM-derived rainfall data is used as dependent variable while locational and topographical factors are used as independent variables. Locational factor variables are derived by using centroid coordinates within every ZOM consist of latitude (lat) and longitude (Ion) in degree. Topographical variables consist of slope, elevation, and aspect acquired from SRTMV3 data. Slope and elevation are derived from zonal analysis within every ZOM so that acquired mean of slope (mean_slp_p and mean_slp_d) in percent and degree while mean elevation (meanelev) based on meter above MSL. In addition, aspects are derived from area tabulation so that obtained aspect proportion within every ZOM based on eight wind directions and flat slope. This study shows the effects between locational and topographical factors towards precipitation are denoted as Y=42681,559+45,444~*(mean_slp_p)-369,994~*(lon);Y=878,406+19,796~*(mean_slp_p); Y=11078,53+29,744~*(mean_ slp_d)-96,260~*(lon); Y=6116,942-54,237~*(lon)+3,404~*(mean_slp_p); Y=15335,544135,570~*(lon)+14,302~*(mean_ slp_d) for yearly, DJF, MAM, JJA, and SON periods respectively. The effects of longitude value is inversely proportional towards rainfall while slope value is directly proportional towards rainfall.
机译：Jawa Tengah和Daerah Istimewa Yogyakarta（DIY）的降水量由于降雨而形成的空间和时间变化，其季风定期吹来，其地形条件的可变性。印度尼西亚降雨量的正常条件是由季节（ZOM）的区域代表。 ZOM是由气象，气候学和地球物理学机构（BMKG）制造的，基于一定区域的降雨模式的均质性30年，这在干旱和雨季期间明显区别。本研究的目的是研究当地和地形因素（斜坡，高度和方面）在每年和时令（DJF; MAM; JJA;儿子）在Jawa Tengah和DIY基于Zom衍生的降雨数据1981-2010。用于研究效果的方法，在年度和季节性期间降水的地位和地形因素是逐步线性的回归。 Zom衍生的降雨数据用作因变量，而定位和地形因子用作独立变量。通过在每个Zom内使用纬度（LAT）和经度（离子）之间的质心坐标来导出位置因子变量。地形变量包括从SRTMV3数据获取的斜率，高度和方面。斜率和高度源于每个Zom内的区域分析，使得基于MSL上方的仪表的平均升高（MASHELEV）获得百分比和程度的斜率（MEAN_SLP_P和SEAR_SLP_D）的平均值。另外，各方面来自面积标记，从而基于八个风向和平坦斜率获得每个Zom内的方面比例。本研究表明，朝向降水的地位和地形因素之间的效果表示为y = 42681,559 + 45,444〜*（mean_slp_p）-369,994〜*（lon）; y = 878,406 + 19,796〜*（mean_slp_p）; Y = 11078,53 + 29,744〜*（均值_ slp_d）-96,260〜*（lon）; Y = 6116,942-54,237〜*（LON）+ 3,404〜*（MEAL_SLP_P）; Y = 15335,544135,570〜*（LON）+ 14,302〜*（MANS_ SLP_D）分别为每分，DJF，MAM，JJA和儿子周期。经度值的影响与降雨成反比，而坡度值与降雨成比例。

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