KORELASI ANTARA DATA CURAH HUJAN PENAKAR MANUAL DAN TRMM (TROPICAL RAINFALL MEASURING MISSION) GIOVANNI TOVAS. (STUDI KASUS TEKNOLOGI MODIFIKASI CUACA UNTUK MENANGGULANGI KABUT ASAP KEBAKARAN HUTAN DAN LAHAN DI RIAU TAHUN 2014)
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Abstract
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Telah dilakukan kajian tentang korelasi antara data curah hujan yang terukur di Pos Meteorologi dan data curah hujan yang terukur pada TRMM (Tropical Rainfall Measuring Mission). Data curah hujan merupakan data curah hujan rata – rata harian dibeberapa titik yang ada di Provinsi Riau. Data yang digunakan dalam kajian ini adalah data hujan dari tanggal 16 Maret sampai dengan 28 April 2014. Pengujian korelasi dilakukan dengan menggunakan teknik korelasi Product Moment Pearson dengan asumsi bahwa data terdistribusi normal. Dari hasil perhitungan dengan korelasi Pearson didapatkan nilai korelasi sebesar 0,52. Korelasi yang terhitung sebesar 0,52 masuk kedalam kategori CUKUP. Selain pengujian korelasi, data curah hujan juga dianalisa dengan uji perbandingan streamline yang terbentuk pada diagram kartesius. Tanpa melihat besarnya nilai curah hujan tetapi dengan melihat pola terbentuknya streamline terlihat tanggal 16 Maret sampai dengan tanggal 21 Maret 2014 pola yang terbentuk cenderung berkebalikan dimana ketika data curah hujan pada Posmet turun curah hujan pada TRMM justru malah naik. Sementara mulai tanggal 22 Maret 2014 sampai akhir tanggal 28 April 2014 terlihat tren stream line yang cenderung berpola mirip walaupun ada beberapa titik yang saling berkebalikan sehingga secara umum terlihat polanya mirip.
Abstract
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Studied correlation between data rainfall in Post Meteorological (Posmet) and rainfall data on TRMM (Tropical Rainfall Measuring Mission) have been done. Precipitacion is average rainfall data at the daily average some point in Province of Riau. Data used in this study is data from 16 March to 28 April, 2014. Correlation testing was done by using Pearson Product Moment correlation with assumption that data were normally distributed. From the calculation of Pearson correlation obtained correlation value is 0.52. Correlations were calculated is 0.52, category ENOUGH. In addition to testing the correlation, data rainfall were also analyzed with a streamlined comparison test were formed on Cartesian diagram. Without seeing the value of rainfall but by looking at the pattern formation of streamlined look dated March 16 until March 21, 2014 established pattern which tends to reverse when the rainfall data Posmet down on TRMM rainfall actually even go up. While the start date of March 22, 2014 until the end date of 28 April 2014 visible trends that tend to stream line pattern is similar, although there are a few points of each other so that in general the pattern looks similiar.Â
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http://disc2.nascom.nasa.gov/Giovanni/tovas/realti me.3B42RT.2.shtml (Tanggal 16 Maret 2014 s/d 28 April 2014 dengan bentuk data dalam ASCII dengan resolusi 0.25x0.25)