fadli syamsudin
Agency for the Assessment and Application of Technology (BPPT), Jakarta

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GLOBAL DIMMING DAN MASA DEPAN PERUBAHAN IKLIM DI INDONESIA Syamsudin, Fadli
JURNAL TEKNOLOGI LINGKUNGAN Vol 6, No 1 (2005): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Badan Pengkajian dan Penerapan Teknologi (BPPT)

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Abstract

A-14-year (1979-1993) image satellites of Solar Radiation, NOAA and SeaSurface Height Anomaly of TOPEX/POSEIDON and ERS-2 have been used to study a reducing solar radiation received by the Earth (global dimming) and to predict local weather anomaly for the future climate prediction in the Indonesian region. The result shows that a dimming of solar radiation is of 16.6% during 14-year observation. It is higher than the mean increasing of global dimming of 2 - 3% for every decade. This explicitly indicates that the air pollution in the form of aerosols from industrial sectors has large contributions to this this dimming process. At the other side, there is a trend of dominant warm water in the southern Jawa-Bali that affect on the increasing of rainfall intensity in the Indonesian region. We predict that flood and a longer dark during the day time, and more variative local weather change will be more frequently happen in the Indonesian region in the futu
CHARACTERISTIC OF PHYSICAL OCEANOGRAPHY IN EAST INDIAN OCEAN DURING POSITIVE PHASE OF INDIAN OCEAN DIPOLE (IOD) OF 1994/1995, 1997/1998, AND 2006/2007 Dipo, Pramudyo; Nurjaya, I Wayan; Syamsudin, Fadli
Jurnal Ilmu dan Teknologi Kelautan Tropis Vol 3, No 2 (2011): Elektronik Jurnal Ilmu dan Teknologi Kelautan Tropis
Publisher : Jurnal Ilmu dan Teknologi Kelautan Tropis

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Abstract

There is an inter-annual phenomenon in the Indian Ocean that occurs because of the interaction between atmosphere and ocean are known Indian Ocean Dipole (IOD). IOD is a bipolar structure that characterized by the difference of sea surface temperature to normal. The objectives of this study is to know the characteristic of physical oceanography in the eastern part of Indian Ocean during the formation phase, maturation phase and decay phases of positive IOD. The second objective was to determine the comparative characteristic of physical oceanography in the eastern Indian Ocean between the positive IOD in different years. The strengthening of the South Equatorial Current in transitional seasons I (March-May) followed by early cooling of the SST which is indicated by the formation phase of IOD. At the Southeast monsoon (June to August) and the beginning of the season transition II, there is a visible presence of upwelling in the south of Java, which is then further extends to the peak in September (maturation phase) and begin to disappear in October followed by warming of the SST on the East of Indian Ocean in November (decay phase).Keywords: Indian Ocean Dipole, upwelling, Empirical Orthogonal Function (EOF) analysis, Eastern Indian Ocean
GLOBAL DIMMING DAN MASA DEPAN PERUBAHAN IKLIM DI INDONESIA Syamsudin, Fadli
Jurnal Teknologi Lingkungan Vol 6, No 1 (2005): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

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Abstract

A-14-year (1979-1993) image satellites of Solar Radiation, NOAA and SeaSurface Height Anomaly of TOPEX/POSEIDON and ERS-2 have been used to study a reducing solar radiation received by the Earth (global dimming) and to predict local weather anomaly for the future climate prediction in the Indonesian region. The result shows that a dimming of solar radiation is of 16.6% during 14-year observation. It is higher than the mean increasing of global dimming of 2 - 3% for every decade. This explicitly indicates that the air pollution in the form of aerosols from industrial sectors has large contributions to this this dimming process. At the other side, there is a trend of dominant warm water in the southern Jawa-Bali that affect on the increasing of rainfall intensity in the Indonesian region. We predict that flood and a longer dark during the day time, and more variative local weather change will be more frequently happen in the Indonesian region in the futu
Study on Heat Island Effect Induced by Land Use Change Increased Temperature in Metropolitan Jakarta Lestari, Sopia; Moersidik, Setyo S.; Syamsudin, Fadli
Journal of Mathematical and Fundamental Sciences Vol 47, No 2 (2015)
Publisher : ITB Journal Publisher, LPPM ITB

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Abstract

The heat island (HI) effect in metropolitan Jakarta was studied using air temperature measurements at 9 meteorological stations in Jakarta, Tanjung Priok, Serang, Halim, Cengkareng, Pondok Betung, Curug, Bogor, Citeko during 1986-2008 and Serpong during 2008-2011 and 2013; land use for forest, industry, water, settlement, open/cleared land in 1997, 2004, 2009, 2012; and total number of industries and total number of vehicles during 1986-2011. Harmonic analysis was used to remove the seasonal component from the temperature time series data, which was filtered with the 30-day moving average technique to capture trends whose significance was tested with the Mann-Kendall method. The results show that industry was a major factor in land use change over Jakarta with an increasing growth/year of 502 ha (9.76%) concentrated in the eastern part of Jakarta from 1997 to 2012. Industry had a spatial cover change similar to deforestation and open/cleared land expansion, especially in Jakarta from 2009 to 2012: 38.8%/year (industry), 8.3%/year(deforestation), and 13.8%/year (open/cleared land). The HI effect increased the temperature trend rate/year in Jakarta, Tanjung Priok, Serang, Halim, Pondok Betung, Cengkareng, Curug, and Bogor about 0.051°C, 0.021°C, 0.018°C, 0.012°C, 0.006°C, 0.006°C, 0.005°C, and 0.004°C from 1986 to 2008, respectively, equivalent to average warming in the city, suburban, and mountainous areas of around 2.5°C, 0.6°C, and 0.4°C, respectively within 100 years from 2009.
DAMPAK PEMANASAN PULAU PERKOTAAN (URBAN HEAT ISLAND) PADA PENINGKATAN TREN CURAH HUJAN EKSTREM DAN AEROSOL DI MEGAPOLITAN JAKARTA SEJAK TAHUN 1986 Syamsudin, Fadli; Lestari, Sopia
Jurnal Teknologi Lingkungan Vol 18, No 1 (2017)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

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Abstract

Dampak pemanasan pulau perkotaan (urban heat island (UHI)) pada curah hujan ekstrem dan aerosol telah dikaji dalam penelitian ini menggunakan data curah hujan harian dan konsentrasi aerosol bulanan (NO2, SO2, dan SPM) di stasiun Badan Meteorologi Klimatologi dan Geofisika (BMKG) pada megapolitanJakarta dan wilayah pegunungan Bogor dan Citeko dari 1986-2012. Analisis harmonik dilakukan untuk menghilangkan pengaruh musiman pada hasil tren data curah hujan dan selanjutnya signifikansi tren tersebut diuji dengan metoda statistik Mann-Kendall. Hasil penelitian menunjukkan dampak pemanasanpulau perkotaan (UHI) telah terjadi secara nyata dengan tren peningkatan curah hujan ekstrem dari indikator total hari hujan 40, 50 dan 100 mm/tahun dan konsentrasi aerosol di wilayah megapolitan Jakarta dan sekitarnya dengan laju tren masing-masing sebesar 0.17 hari/tahun, 0.17 hari/tahun, dan 0.04 hari/tahun, dan 3.7e-004 ppm/tahun (NO2) dan 0.148 ppm/tahun (SO2). Namun sebaliknya terjadi tren penurunan di wilayah pegunungan Bogor dan Citeko. Hasil penelitian ini menunjukkan ada indikasi peningkatan UHI menyebabkan kenaikan konsentrasi aerosol di megapolitan Jakarta dan kondisi ini menjadi trigger peningkatan curah hujan ekstrem yang berdampak pada intensitas banjir yang semakin meningkat sejak tahun 1986.Kata kunci: Pemanasan pulau perkotaan, curah hujan ekstrem, aerosol, tren