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All Journal PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL)
Putri Santy Siregar
Sekolah Tinggi Meteorologi Kliamtologi dan Geofisika, Jl Perhubungan 1 No 5Komplek Meteorologi, Pondok betung, Pondok Aren, Tangerang Selatan 15221
Electrical & Electronics Engineering Energy Physics Other

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UJI ABB INDEKS STABILITAS TOTAL-TOTAL DALAM PENERAPAN BAHAN PREDIKTOR KEJADIAN CUMULONIMBUS DAN THUNDERSTORM DI PANGKALPINANG Fadel Muhammad Madjid; Antika Heni Hestiwi; Putri Santy Siregar
PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) Vol 6 (2017): PROSIDING SEMINAR NASIONAL FISIKA (E-JOURNAL) SNF2017
Publisher : Program Studi Pendidikan Fisika dan Program Studi Fisika Universitas Negeri Jakarta, LPPM Universitas Negeri Jakarta, HFI Jakarta, HFI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (172.809 KB) | DOI: 10.21009/03.SNF2017.02.EPA.01

Abstract

Atmospheric stability condition is needed to be noticed in a weather forecast especially for short range forecasting. Stability index can be used as a reference to determine future conditions about the exitence of thunderstorm and Cumulonimbus clouds. But the old Total-Totals (TT) threshold is still considered unsuitable for Pangkalpinang. This study uses Total-Totals Index from January to December at 2012-2015 to get the recent Total-Totals (TT) threshold using statistic calculation. After the recent Total-Totals (TT) threshold was obtained, performance test is done for Januari to December 2016. Thunderstorm could already happen when the Total Totals(TT) Index is TT >= 37,76. Based on contingency tabel, miss condition on recent Total-Totals (TT) threshold less than the old Total-Totals (TT) threshold . In reverse with the hit condition. Probability of Cb and TS that could be detected by recent. Total-Totals (TT) threshold is better than the old Total-Totals (TT) threshold. The accuration of recent Total-Totals (TT) threshold is better during the day than during the night. It can be concluded that recent Total-Totals (TT) threshold is able to improve sensitivity on detecting existence of CB and TS. Keywords: Total-Totals, Threshold, CB, TS
Co-Authors Antika Heni Hestiwi Fadel Muhammad Madjid