Siburian, Daniel Tony Edyt
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The Impact Of Total Suspended Solid (TSS) And Containing Water Chlorophyll-A On The Fertility Level Of Jakarta Jakarta Bay Waters Using Technology Of Google Earth Engine (Gee) Clouds Sinaga, Mardame Pangihutan; Siburian, Daniel Tony Edyt; Zega, Edward Kristian
Jurnal Ilmiah Platax Vol. 12 No. 2 (2024): ISSUE JULY-DECEMBER 2024
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/jip.v12i2.55981

Abstract

Research on the distribution of TSS and containing water chlorophyll-a using GEE Cloud Technology in Jakarta Bay Waters was conducted from April to August 2021. Analysis was carried out using the MODIS AQUA-L3SMI satellite and Sentinel 2 TOA reflectance data. The TSS results show that it is distributed evenly (homogenously), varies, and fluctuates from the coast of Jakarta to the Waters of Jakarta Bay, namely 0-120 mg/l, while the containing water chlorophyll-a is distributed unevenly or varies, namely from April 2021 with value 0-3 mg/m3, chlorophyll-a in May 2021 almost evenly distributed with a value of 0-2 mg/m3, chlorophyll-a in June 2021 spread unevenly and fluctuating with an amount of 1-3  mg/m3, for chlorophyll-a in July 2021 was absent due to the influence of many and thick clouds. Chlorophyll-a in August 2021 spread almost evenly and varied throughout the waters amounting to 0,28 mg/m3. TSS spreads evenly (homogeneously), varies, and fluctuates around the edge of Jakarta's coastal waters down to the waters of Jakarta Bay and is not suitable for demersal fish species except zooxanthellae coral reef species. Meanwhile, the containing water chlorophyll-a is spread evenly, varies, and fluctuates. The large amount of chlorophyll-a in all waters and the high TSS will cause total death of living creatures in the waters. Image data can be used to map TSS distribution patterns and contain water chlorophyll-a in the waters of Jakarta Bay. Keywords: TSS; Containing Water Chlorophyll-a; MODIS AQUA-L3SMI Satellite; Sentinel 2 TOA reflectance data Satellite; Jakarta Bay Waters. Abstrak Penelitian sebaran TSS dan kandungan klorofil-a menggunakan Teknologi GEE Cloud di Perairan Teluk Jakarta telah dilaksanakan dari bulan April sampai dengan Agustus 2021. Analisis dilakukan dengan menggunakan satelit MODIS AQUA-L3SMI dan Sentinel 2 TOA reflectance data. Hasil TSS diperoleh bahwa menyebar merata (homogen), bervariasi, dan berfluktuasi dari pinggir pantai Jakarta sampai ke arah perairan Teluk Jakarta, yaitu 0-120 mg/l, sedangkan kandungan klorofil-a menyebar tidak merata atau bervariasi, yaitu dari bulan April 2021 dengan nilai 0-3 mg/m3, klorofil-a di bulan Mei 2021 hampir menyebar merata yang nilai 0-2 mg/m3, klorofil-a di bulan Juni 2021 menyebar tidak merata dan berfluktuasi dengan jumlah 1-3 mg/m3, untuk klorofil-a di bulan Juli 2021 tidak ada karena pengaruh awan yang banyak dan tebal, dan klorofil- a di bulan Agustus 2021 menyebar hampir merata dan bervariasi ke seluruh perairan berjumlah 0-2,8 mg/m3. TSS menyebar secara merata (homogen), bervariasi dan fluktuasi di sekitar pinggiran perairan pantai Jakarta sampai ke perairan Teluk Jakarta dan tidak cocok untuk jenis-jenis ikan demersal kecuali jenis terumbu karang zooxanthellae. Sedangkan kandungan klorofil-a nya menyebar secara merata, bervariasi dan fluktuasi. Banyaknya kandungan klorofil-a yang ada di semua perairan dan TSS nya tinggi, akan menyebabkan kematian secara total terhadap makhluk hidup di dalam perairan. Data citra dapat digunakan untuk memetakan pola sebaran TSS dan kandungan klorofil-a di wilayah perairan Teluk Jakarta. Kata kunci: TSS; Kandungan Klorofil-a; Satelit MODIS AQUA-L3SMI; Satelit Sentinel 2 TOA reflectance data; Perairan Teluk Jakarta
Analysis Of River Ordo In The Tukad Balian Watershed (DAS), Bali Province, Indonesia Sinaga, Mardame Pangihutan; Simanullang, Ady Frenly; Siburian, Daniel Tony Edyt; Joko Barita Sianipar; Sianipar, Herna Febrianty; Sianturi, Tambos August
Journal of Geoscience, Engineering, Environment, and Technology Vol. 9 No. 04 (2024): JGEET Vol 09 No 04 : December (2024)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2024.9.04.18927

Abstract

River order research in Tukad Balian Watershed, Bali Province uses ArcGIS Pro to process ASTER GDEM and National DEM data. The analysis is based on: the area and Perimeter of the Watershed, Watershed Length and Width, Land Slope, Average Height, Order and Level of River Branching. The results obtained for the Watershed show that the morphometric value is an area of 15485,20 hectares, a length of 23,08 km, a land slope of 0,40%, and 5 orders of branching rivers with a total of 665 river sections. The shape of Watershed Tukad Balian roundness index value is 7,2. GIS is an effective system for reducing Watershed morphometric information. The research method used is to directly calculate the morphometric parameters of the Tukad Balian Watershed, Bali Province, namely: Area and Perimeter of the Watershed; Watershed Length and weight; River slop or gradient; Average Height; Order and Level of River Branching; Flow Density; and Watershed Form. The conclusion obtained is: The Tukad Balian watershed is a standard-sized watershed with an area of 15.485,20 Ha an average height of 200 meters above sea level and the main river channel is 10,71 Km long. There a plot sections with a total length of 23,08 Km; The elongated shape of the Tukad Balian watershed is in the medium category, where the Tukad Balian Watershed will not experience major flooding.
The Impact of Sea Surface Temperature and Containing Chlorophyll-A on The Results of Skipjack Tuna (Katsuwonus Pelamis) Catch in The Indian Ocean Waters Sinaga, Mardame Pangihutan; Siburian, Daniel Tony Edyt
Journal of Geoscience, Engineering, Environment, and Technology Vol. 10 No. 02 (2025): JGEET Vol 10 No 02 : June (2025)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2025.10.02.21643

Abstract

Oceanographic factors can be an indicator in determining the potential of fishing grounds. The sampling technique of sea surface temperature (SST) and chlorophyll-a data in this study was carried out spatially and temporal using satellite image data which can be downloaded from Aqua MODIS. This study aimed to determine variations in SST distribution and chlorophyll-a concentration in Indian Ocean waters using Aqua MODIS imagery from June 2023 to May 2024; analyzing the relationship between the distribution of SST and chlorophyll-a with the number of pelagic fish catches in the Indian Ocean waters. The type of fish used as research material is skipjack tuna (Katsuwonus pelamis). The distribution of SST in the Indian Ocean waters for June 2023-May 2024 is between 29,15-31,64 °C, where there is a significant decrease in temperature from 31,10-29,15 °C due to the east monsoon wind and the chlorophyll-a distribution is around between 0,24-0,73 mg/m³ with the highest average distribution in the western season. This phenomenon causes chlorophyll-a to increase in the western season because the frequency of rainfall in this season is sufficient, causing nutrients to increase due to vertical stirring, which can increase chlorophyll-a at the sea surface. There is no relationship between SST and chlorophyll in the number of skipjack tuna catches in transition II with a strong correlation value and a significance value (F) of 1,o, meaning that SST and chlorophyll-a on skipjack tuna to the skipjack tuna catches not influence for each season, the influence of significant event is thought to be a lag in the food chain and high rainfall. This study reveals that while variations in sea surface temperature and chlorophyll-a concentration are significant understanding oceanographic conditions, they do not directly influence skipjack tuna catch rates, suggesting that other ecological factors, such as food chain dynamics and seasonal rainfall patterns, may play a more critical role.