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All Journal Jurnal Teknologi Perikanan dan Kelautan Marine Fisheries: Jurnal Teknologi dan Manajemen Perikanan Laut Jurnal Ilmu dan Teknologi Kelautan Tropis Journal of Marine and Aquatic Sciences ILMU KELAUTAN: Indonesian Journal of Marine Sciences BIOTROPIA - The Southeast Asian Journal of Tropical Biology Forum Geografi Jurnal Kelautan Tropis Journal of Applied Geospatial Information JURNAL ENGGANO Omni-Akuatika JURNAL ILMIAH GEOMATIKA MAJALAH ILMIAH GLOBE Sumatra Journal of Disaster, Geography and Geography Education Aquasains : Jurnal Ilmu Perikanan dan Sumberdaya Perairan Jurnal Penelitian Perikanan Indonesia Jurnal Kelautan Nasional Jurnal Segara Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital International Journal of Remote Sensing and Earth Sciences (IJReSES) COJ (Coastal and Ocean Journal) Jurnal Manusia dan Lingkungan Journal of Fisheries & Marine Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital The International Journal of Remote Sensing and Earth Sciences (IJReSES)
Vincentius P Siregar
Department Of Marine Science And Technology, Faculty Of Fisheries And Marine Science, IPB University, Jl. Agatis, Babakan, Kec. Dramaga, Kota Bogor, Jawa Barat 16128 Indonesia
Aerospace Engineering Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Engineering Environmental Science Immunology & microbiology Library & Information Science Materials Science & Nanotechnology Mathematics Physics Social Sciences Veterinary Other

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COASTAL UPWELLING UNDER THE INFLUENCE OF WESTERLY WIND BURST IN THE NORTH OF PAPUA CONTINENT, WESTERN PACIFIC Harold J.D.Waas; Vincentius P. Siregar; Indra Jaya; Jonson Lumban Gaol
International Journal of Remote Sensing and Earth Sciences Vol. 9 No. 2 (2012)
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/j.ijreses.2012.v9.a1837

Abstract

Coastal upwelling play an important role in biological productivity and the carbon cycle in the ocean. This research aimed to examine the phenomenon of coastal upwelling that occur in the coastal waters north of Papua continent under the influence of Westerly Wind Burst(WWB) prior to the development of El Nino in the Pacific. Data consisted of sea surface temperature, vertical oceanic temperature, ocean color satellite image, wind stress and vector wind speed image, sea surface high, and Nino 3.4 index. Coastal upwelling events in the northern coastal waters of Papua continent occurred in response to westerly winds and westerly wind burst (WWBs) during December to March characterizing by low sea surface temperature (SST) (25 - 28ï‚°C), negative sea surface high deviation and phytoplankton blooming, except during pre-development of the El Nino 2006/2007 where weak upwelling followed by positive sea surface high deviation. Strong coastal upwelling occurred during two WWBs in December and March1996/1997 with maximum wind speed in March produced a strong El Nino 1997/1998. Upwelling generally occurred along coastal waters of Jayapura to Papua New Guinea with more intensive in coastal waters north of Papua New Guinea indicated by Ekman transport and Ekman layer depth maximum.
IN-SITU MEASUREMENT OF DIFFUSE ATTENUATION COEFFICIENT AND ITS RELATIONSHIP WITH WATER CONSTITUENT AND DEPTH ESTIMATION OF SHALLOW WATERS BY REMOTE SENSING TECHNIQUE Budhi Agung Prasetyo; Vincentius Paulus Siregar; Syamsul Bahri Agus; Wikanti Asriningrum
International Journal of Remote Sensing and Earth Sciences Vol. 14 No. 1 (2017)
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/j.ijreses.2017.v14.a2682

Abstract

Diffuse attenuation coefficient, Kd(λ), has an empirical relationship with water depth, thus potentially to be used to estimate the depth of the water based on the light penetration in the water column. The aim of this research is to assess the relationship of diffuse attenuation coefficient with the water constituent and its relationship to estimate the depth of shallow waters of Air Island, Panggang Island and Karang Lebar lagoons and to compare the result of depth estimation from Kd model and derived from Landsat 8 imagery. The measurement of Kd(λ) was carried out using hyperspectral spectroradiometer TriOS-RAMSES with range 320 – 950 nm. The relationship between measurement Kd(λ) on study site with the water constituent was the occurrence of absorption by chlorophyll-a concentration at the blue and green spectral wavelength. Depth estimation using band ratio from Kd(λ) occurred at 442,96 nm and 654,59 nm, which had better relationship with the depth from in-situ measurement compared to the estimation based on Landsat 8 band ratio. Depth estimated based on Kd(λ) ratio and in-situ measurement are not significantly different statistically. Depth estimated based on Kd(λ) ratio and in-situ measurement are not significantly different statistically. However, depth estimation based on Kd(λ) ratio was inconsistent due to the bottom albedo reflection because the Kd(λ) measurement was carried out in shallow waters. Estimation of water depth based on Kd(λ) ratio had better results compared to the Landsat 8 band ratio.
PRIMARY PRODUCTIVITY OF JAKARTA BAY IN A CHANGING ENVIRONMENT: CLIMATE CHANGE AND ANTHROPOGENIC IMPACTS Vincentius Siregar; Alan F. Koropitan
BIOTROPIA Vol. 20 No. 2 (2013): BIOTROPIA Vol. 20 No. 2 December 2013
Publisher : SEAMEO BIOTROP

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1436.698 KB) | DOI: 10.11598/btb.2013.20.2.380

Abstract

Jakarta Bay receives direct impact from the rapid development of infrastructure and landbased industries which contributed to the increase in pollution and nutrient, and at the same time facing climate change. This condition influenced growth of chlorophyll- and primary production. To investigate changes of primary production in Jakarta Bay due to anthropogenic and climate change impacts, a field measurement, laboratory experiment and collection of several data sets have been conducted. The study showed that impact of anthropogenic, particularly sediment load from the land to primary production is important. The intensification of primary production occurs in the middle region of Jakarta Bay, while the chlorophyllconcentration is high in the river mouth area. The anthropogenic impact is indicated by the land use change that has increased to 73% during the last ten years. The laboratory experiments by injecting CO in the waters, as a global warming simulation, have shown a decrease in chlorophyll- and primary production. Therefore, the combination of anthropogenic and climate changemay have a double impact on the Jakarta Bay ecosystem.Key words: Primary production, Jakarta Bay, anthropogenic, climate change, impact
Co-Authors . Rosmasita Ade Ayu Mustika Adriani Sunuddin Afwan Syaugy Agus, Syamsul B. Alan Frendy Koropitan Alfiqi Maulana Alim Setiawan Amelia Suryanita Amran, Muhammad Anshar Andi Alamsyah Rivai Andriani Sunuddin Anggi Tiarasani Ani Mardiastuti Antonius Bambang Wijanarto Ari Anggoro Ari Anggoro Arip Rahman Arip Rahman Aryo Hanggono Ayub Sugara Baba Barus Bisman Nababan Budhi Agung Prasetyo Budhi Agung Prasetyo DEDI SOEDHARMA Dedi Soedharma Dietrich G. Bengen Djisman Manurung Doddy M. Yuwono, Doddy M. Ega Putra Emma Suri Yanti Siregar Esty Kurniawati ESTY KURNIAWATI Ety Parwati Faizal Kasim Fanny Meliani Fredinan Yulianda Gatot H. Pramono, Gatot H. Guido Roberto Jerun Parera Harold J.D. Waas Harold J.D.Waas Hartoni Hartoni Henry Munandar Manik Herianto Heru Arafat Hestirianoto, Totok Hidayat Pawitan Hiroki Yasuma I Wayan Nurjaya Ibnu Sofian, Ibnu indah kartika Indra Jaya Indra Jaya Indra Jaya Indra Jaya Indra Jaya Indra Jaya Insaniah Rahimah Iwan E. Setyawan, Iwan E. James Parlindungan Panjaitan Jonniere, Romie Jonson Lumban Gaol Kasim, Faizal Kaulina Silvitiani Khairul Amri Krisna Rendi Awalludin LILIK BUDIPRASETYO Mennofatria Boer Mira Harimurti Miswadi Miswadi Muhammad Banda Selamat Muhammad Banda Selamat Muhammad Banda Selamat Muhammad Iqra Prasetya Muhammad Rizki Nandika Muhammad Siddiq Sangadji Muhammad Sudibjo Mulia Purba Mutiara Alkayakni Harahap Nadia Shalehah Nani Hendiarti Nico Wantona Prabowo Nunung Noer Aziizah Nunung Noer Aziizah Nunung Noer Aziizah Nunung Noer Aziizah, Nunung Noer Nur Audina Nurjannah Nurdin Nurul Khakhim Nurul Khakhim Prasetya, Muhammad Iqra Risti Endriani Arhatin Riza Aitiando Pasaribu Romie Jhonnerie Romy Ketjulan, Romy Rosmasita, Rosmasita Sabilah, Anisa Aulia Sakka Sakka Sam Wouthuyzen Sam Wouthuyzen Sangadji, Muhammad Siddiq Setyo Budi Susilo Susilo, Setyo B. Syamsul Agus Syamsul B. Agus Syamsul B. Agus Syamsul B. Agus Syamsul B. Agus Syamsul Bahri Agus, Syamsul Bahri Tarlan Subarno Tarlan Subarno, Tarlan Wahidin, Nurhalis Wikanti Asriningrum Wikanti Asriningrum Wikanti Asriningrum Wikanti Asriningrum Wildan Tino Zulhamsyah Imran