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Deteksi Kapal Penangkapan Ikan Menggunakan data Visible Infrared Imaging Radiometer Suite (VIIRS) dan data Vessel Monitoring System (VMS) di Wilayah Pengelolaan Perikanan Negara Republik Indonesia Dominggus Samuel Helberth Lothar Matheus Koreri Awak; Jonson Lumban-Gaol; Dony Kushardono
Journal of Marine and Aquatic Sciences Vol 8 No 1 (2022)
Publisher : Fakultas Kelautan dan Perikanan Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/jmas.2022.v08.i01.p12

Abstract

Perikanan pelagis kecil merupakan salah satu sumber daya ikan yang penting terhadap perekonomian Indonesia. Salah satu permasalahan yang dihadapi saat ini adalah masalah overfishing, seiring dengan kemajuan teknologi penangkapan ikan yang mengakibatkan aktivitas penangkapan yang melebihi tingkat penangkapan ikan lestari serta tidak diimbangi dengan pengelolaan yang baik. Penelitian ini bertujuan menganalisis distribusi kapal penangkapan ikan secara terintegrasi dari data vessel boat detection VIIRS dan data VMS di wilayah pengelolaan perikanan Indonesia. Dalam rangka mendukung upaya pengelolaan maka kajian mengenai distribusi kapal yang aktual beroperasi di perairan Indonesia perlu diketahui secara pasti. Saat ini pemantauan distribusi kapal ikan di perairan Indonesia dilakukan dengan menggunakan vessel monitoring system. Selain dari VMS pendeteksian kapal ikan dapat dilakukan dengan memanfaatkan data penginderaan jauh baik dari sensor aktif maupun pasif yaitu melalui satelit Suomi National Polar-orbiting Partnership yang memiliki visible infrared imaging radimeter suite. Instrumen ini memiliki day/night band yang mampu merekam cahaya lampu di permukaan bumi termasuk kapal-kapal ikan yang menggunakan cahaya lampu sebagai alat bantu tangkap. Metode deteksi kapal ikan menggunakan kombinasi data VBD dari citra satelit VIIRS dan data VMS kapal ikan. Berdasarkan kecocokkan sebesar 26.04% dan berdasarkan kombinasi data VIIRS dan VMS diketahui bahwa daerah dengan distribusi kapal terbanyak di WPP-712
PEMETAAN PARTISIPATIF DAN MONITORING PENGELOLAAN KEBUN KEMENYAN MASYARAKAT DESA HUTA PAUNG KECAMATAN POLLUNG Jonson Lumban-Gaol; Bisman Nababan; Riza Aitiando Pasaribu; Muhammad; Ni Putu Ratna Suhita
Jurnal Rekayasa Teknik Sipil dan Lingkungan - CENTECH Vol. 4 No. 1 (2023): Jurnal Rekayasa Teknik Sipil dan Lingkungan, APRIL ISSN 2722-0230 (Online)
Publisher : UKI Press

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33541/cen.v4i1.4803

Abstract

The community has managed the benzoin forest in Paung Village, Pollung District, for hundreds of years, but the land ownership status is state land. In line with government programs to involve the community in forest management, such as by establishing social forests, it is necessary to conduct preparations such as mapping the boundaries of community forest management. In this community service activity, the boundaries of community benzoin forest management have been mapped with the application of geospatial technology, namely the integration of remote sensing satellite technology and the Global Positioning System (GPS) to determine boundary coordinates. Boundary mapping of the benzoin forest was carried out in a participatory manner by directly involving the community who had conducted activities in the benzoin forest. Based on mapping the boundaries of the Benzoin forest management area, the average area managed by the community is around 2 ha per family. The monitoring results around the benzoin forest show decreased vegetation cover. But the vegetation land cover in the Benzoin forest management area of ​​the Paung village Forest Village community has not changed. The benzoin forest area of ​​the Puang village community is maintained since the community uses benzoin resin, so trees are not cut down.
VARIABILITY OF SEA SURFACE TEMPERATURE (SST) AND CHLOROPHYLL-A (CHL-A) CONCENTRATIONS IN THE EASTERN INDIAN OCEAN DURING THE PERIOD 2002–2017 Michelia Mashita; Jonson Lumban-Gaol
International Journal of Remote Sensing and Earth Sciences Vol. 16 No. 1 (2019)
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/j.ijreses.2019.v16.a3147

Abstract

We analysed the variability of sea surface temperature (SST) and chlorophyll-a concentration (Chl-a) in the eastern Indian Ocean (EIO). We used monthly mean Chl-a and SST data with a 4-km spatial resolution derived from Level-3 Aqua Moderate-resolution Imaging Spectroradiometer (MODIS) distributed by the Asia-Pacific Data-Research Center (APDRC) for the period 2002–2017. Wavelet analysis shows the annual and interannual variability of SST and Chl-a concentration in the EIO. The annual variability of SST and Chl-a is influenced by monsoon systems. During a southeast monsoon, SST falls while Chl-a increases due to upwelling. The annual variability of SST and Chl-a is also influenced by the Indian Ocean Dipole (IOD). During positive phases of the IOD (2006, 2012 and 2015), there was more intense upwelling in the EIO caused by the negative anomaly of SST and the positive anomaly of Chl-a concentration.
VARIATION AND TREND OF SEA LEVEL DERIVED FROM ALTIMETRY SATELLITE AND TIDE GAUGE IN CILACAP AND BENOA COASTAL AREAS Amelius Andi Mansawan; Jonson Lumban-Gaol; James P. Panjaitan
International Journal of Remote Sensing and Earth Sciences Vol. 13 No. 1 (2016)
Publisher : BRIN

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/j.ijreses.2016.v13.a2703

Abstract

Observation of sea levels continuously is very important in order to adapt the disasters in the coastal areas. Conventionally observations of sea level using tide gauge, but the number of tide gauge installed along the coast of Indonesia is still limited. Altimetry satellite data is one solution; therefore it is necessary to assess the potential and accuracy of altimetry satellite data to complement the sea level data from tide gauges. The study was conducted in the coastal waters of Cilacap and Bali by analysis data Envisat satellite altimetry for period 2003 to 2010 and data compiled from a variety of satellite altimetry from 2006 to 2014. Data tidal was used as a comparison of altimetry satellite data. The altimetry satellite data in Cilacap and Benoa waters more than 90% could be used to assess the variation and the sea level rise during the period 2003-2010. The rate of sea level rise both the data of tidal and satellite altimetry data indicates the same rate was 3.5 mm/year in Cilacap. in Benoa are 4.7 mm/year and 5.60 mm/year respectively.