Jurnal Penginderaan Jauh Indonesia 2020-08-19T11:38:50+07:00 Lalu Muhamad Jaelani, PhD Open Journal Systems <p style="text-align: justify;"><strong><img src="/public/site/images/jurnalmapin/JPJI1.png">Jurnal Penginderaan Jauh Indonesia</strong>&nbsp;disingkat JPJI (e-ISSN: 2657-0378) adalah media komunikasi dan diseminasi hasil penelitian, kajian dan pemikiran terkait teori, sains, dan teknologi penginderaan jauh serta pemanfaatannya. JPJI dikelola dan diterbitkan oleh Masyarakat Ahli Penginderaan Jauh Indonesia (MAPIN)</p> Analisis Perubahan Vegetasi dengan Data Sentinel-2 menggunakan Google Earth Engine 2020-08-02T09:37:12+07:00 Fandi Dwi Julianto Dinda Pratiwi Dwi Putri Hafizh Humam Safi’i <p><strong>Analysis of Vegetation Change Using Sentinel-2 Data in <em>Google Earth Engine</em> (A Case Study of Yogyakarta Special Region Province</strong></p> <p>The Special Region of Yogyakarta (DIY) has a rapid rate of change in vegetation land cover in line with an increase in population that can have an impact on the environment and ecosystem. Remote sensing is a useful technology in determining land cover. The technique can monitor changes in vegetation land regularly from time to time and with various scales. This study aims to determine the changes in vegetation in the Province of DIY with the vegetation index transformation method using the NVDI (Normalized Difference Vegetation Index) algorithm. Processing using Google Earth Engine, which is a cloud-based platform that makes it easy to monitor changes in vegetation quickly and accurately from year to year. The satellite imagery used was a medium resolution satellite image sentinel-2 level 2A and level 1C, which was corrected by atmospheric using SIAC algorithm. Processing results show an average decrease in NDVI values ​​from 2017-2020, with the highest average value in 2018 was 0.73, and the lowest in 2019 was 0.59. Vegetation change was dominated by dense vegetation class, which area turned into medium vegetation class.</p> 2020-08-02T08:57:59+07:00 ##submission.copyrightStatement## Variasi Emisi Gas Nitrogen Dioksida saat Pembatasan Sosial Berskala Besar di Provinsi Jawa Barat dari Pengolahan Data Sentinel-5p 2020-08-19T11:02:02+07:00 Tania Septi Anggraini Febzi Artaningh Elstri Sihotang Anjar Dimara Sakti Agustan Agustan <p><strong>Variations of Nitrogen Dioxide Emissions during Large Scale Social Restrictions in West Java Province from Sentinel-5P Satellite Data Processing</strong></p> <p><br><strong>Abstract.</strong> Sentinel-5P satellite that was launched in 2017 by ESA has a mission to monitor the earth’s atmosphere. One product of Sentinel-5P mission is the distribution of troposphere column density for several gases including nitrogen dioxide (NO<sub>2</sub>). NO<sub>2</sub> emission is related to fossil fuel combustion from human activities such as factories and vehicle emissions. In 2020, COVID-19 is spreading all over the world including Indonesia. To break the chain of its distribution, therefore, the Indonesian Government enacts large scale social restriction (PSBB) in several areas including West Java Province. Sentinel-5P data was processed and analyzed to see the variations of changes in NO<sub>2</sub> emission in several sampled cities in West Java. It is found that the NO<sub>2</sub> emissions have decreased during PSBB. However, before Idul Fitri event on May 18, 2020, shows that the NO<sub>2</sub> emission at Bandung Cities, Bandung District, and Bogor District increase significantly up to six-time higher. This activity also shows that daily information from Sentinel-5P satellite can be used for monitoring gases in the atmosphere.</p> 2020-08-17T00:00:00+07:00 ##submission.copyrightStatement## Analisis Data Sentinel-2 Untuk Mendukung Pariwisata Kawasan Wakatobi 2020-08-19T11:09:20+07:00 Febzi Artaningh Tania Septi Anggraini Elstri Sihotang Anjar Dimara Sakti Agustan Agustan <div>&nbsp;</div> <div> <p><strong>Sentinel-2 Data Analysis to Support Special Interest Tourism in the Wakatobi Region</strong></p> <p><strong>Abstract.</strong> Tourism has a role for power improvement of the regional economy; therefore, it is important to do a good plan, management, and monitoring the tourism areas for sustainable goals. Satellite-based remote sensing methods are proven reliable in getting area information effectively and regularly. The Sentinel-2 satellites monitoring land cover changes regularly thus that it can be used to analyze the environmental carrying capacity for tourism. Sentinel-2 data that consists of several scenes at two-time observations were processed by mosaicking and spectral color composite strategies. The Wakatobi coastal uniqueness was analyzed by the vegetation index method combined with tidal data. There are several regions that were indicated to have spectral changes over five months, with an area approximately 30,55 km<sup>2</sup>. These interesting objects have the potential to support tourism in the Wakatobi region.</p> </div> 2020-08-19T00:00:00+07:00 ##submission.copyrightStatement## Pemantauan Konsentrasi Gas SO2 di Sekitar Gunung Sinabung Menggunakan Citra Satelit Sentinel-5 Precursor 2020-08-19T11:38:50+07:00 Elstri Sihotang Febzi Artaningh Tania Septi Anggrainia Anjar Dimara Sakti Agustan Agustan <p><strong>Monitoring of SO2 Gas Concentration Around Mount Sinabung Using Sentinel-5 Precursor Satellite Imagery</strong></p> <p><strong>Abstract.&nbsp;</strong>Mount Sinabung is a mountain type A that is still active. Mount Sinabung is located in North Sumatra Province, Karo Regency. Mount Sinabung eruption does affect not only the region but also the area around the mountain. One of the substances that were sprayed by the volcano during the outbreak was SO<sub>2</sub> gas. SO<sub>2</sub> gas is an essential parameter for determining air quality. SO<sub>2</sub> gas is in the atmosphere through a natural process and anthropogenic process. The data of SO<sub>2</sub> gas was obtained by utilizing the Sentinel-5P record results. Data Sentinel-5P was processed and analyzed to be able to determine the SO<sub>2</sub> gas concentration in the area surrounding Mount Sinabung and also changes in the SO<sub>2</sub> gas concentrations in several areas. In general, the highest SO<sub>2</sub> gas concentration was at the crater of Mount Sinabung. However, on 22 July 2019, the SO<sub>2</sub> gas concentrations in Deli Serdang Regency were higher, around 75% of SO<sub>2</sub> gas concentrations in the crater area. This research may also indicate that Sentinel-5P data can be used to monitor gas in the atmosphere.</p> <p><strong>Keywords: </strong>Mount Sinabung; Eruption; SO<sub>2</sub>; air quality; Sentinel-5P.</p> 2020-08-19T10:56:07+07:00 ##submission.copyrightStatement##