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Sakti, Anjar Dimara
Remote Sensing And Geographic Information Science Research Group, Faculty Of Earth Science And Technology, Institut Teknologi Bandung, 40132, Bandung
Aerospace Engineering Agriculture, Biological Sciences & Forestry Astronomy Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Earth & Planetary Sciences Education Engineering Environmental Science Social Sciences Other

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Analisis Data Sentinel-2 Untuk Mendukung Pariwisata Kawasan Wakatobi Artaningh, Febzi; Anggraini, Tania Septi; Sihotang, Elstri; Sakti, Anjar Dimara; Agustan, Agustan
Jurnal Penginderaan Jauh Indonesia Vol 2 No 2 (2020)
Publisher : Masyarakat Ahli Penginderaan Jauh Indonesia (MAPIN) /Indonesian Society of Remote Sensing (ISRS)

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Abstract

Sentinel-2 Data Analysis to Support Special Interest Tourism in the Wakatobi Region Abstract. 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 km2. These interesting objects have the potential to support tourism in the Wakatobi region.
Pemantauan Konsentrasi Gas SO2 di Sekitar Gunung Sinabung Menggunakan Citra Satelit Sentinel-5 Precursor Sihotang, Elstri; Artaningh, Febzi; Anggrainia, Tania Septi; Sakti, Anjar Dimara; Agustan, Agustan
Jurnal Penginderaan Jauh Indonesia Vol 2 No 2 (2020)
Publisher : Masyarakat Ahli Penginderaan Jauh Indonesia (MAPIN) /Indonesian Society of Remote Sensing (ISRS)

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Monitoring of SO2 Gas Concentration Around Mount Sinabung Using Sentinel-5 Precursor Satellite Imagery Abstract. 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 SO2 gas. SO2 gas is an essential parameter for determining air quality. SO2 gas is in the atmosphere through a natural process and anthropogenic process. The data of SO2 gas was obtained by utilizing the Sentinel-5P record results. Data Sentinel-5P was processed and analyzed to be able to determine the SO2 gas concentration in the area surrounding Mount Sinabung and also changes in the SO2 gas concentrations in several areas. In general, the highest SO2 gas concentration was at the crater of Mount Sinabung. However, on 22 July 2019, the SO2 gas concentrations in Deli Serdang Regency were higher, around 75% of SO2 gas concentrations in the crater area. This research may also indicate that Sentinel-5P data can be used to monitor gas in the atmosphere. Keywords: Mount Sinabung; Eruption; SO2; air quality; Sentinel-5P.
Variasi Emisi Gas Nitrogen Dioksida saat Pembatasan Sosial Berskala Besar di Provinsi Jawa Barat dari Pengolahan Data Sentinel-5p Anggraini, Tania Septi; Artaningh, Febzi; Sihotang, Elstri; Sakti, Anjar Dimara; Agustan, Agustan
Jurnal Penginderaan Jauh Indonesia Vol 2 No 2 (2020)
Publisher : Masyarakat Ahli Penginderaan Jauh Indonesia (MAPIN) /Indonesian Society of Remote Sensing (ISRS)

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Variations of Nitrogen Dioxide Emissions during Large Scale Social Restrictions in West Java Province from Sentinel-5P Satellite Data Processing Abstract. 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 (NO2). NO2 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 NO2 emission in several sampled cities in West Java. It is found that the NO2 emissions have decreased during PSBB. However, before Idul Fitri event on May 18, 2020, shows that the NO2 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.
Microplastics pollution in sediment of Serang River Kulon Yogyakarta Province Ismiyati Ismiyati; Inggita Utami; Fahmi Hermawan Tricahya; Pidianto Pidianto; Suci Rahmawati; Annesa Mahsa Ramadhanti; Anjar Dimara Sakti
Jurnal Rekayasa Proses Vol 17, No 1 (2023)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.73233

Abstract

Microplastics that can harm living things have been found in large rivers in Yogyakarta Province to the digestive tract of fish. However, rivers in the suburban areas of the province, such as the Serang River, have not yet been identified, although many local communities still use them. This study aimed to analyze the abundance, type of polymer, and characteristics of microplastics found in Serang River sediments. Sampling was carried out in December 2019 in the upstream, midstream, and downstream areas of the river. Six sediment samples were taken from each area and randomly divided into two stations. Each sediment sample was then dried, weighed dry, separated the microplastics, observed visually, calculated the abundance of microplastics, grouped shape, size, and color (characteristics), identified the type of polymer by Fourier-transform infrared spectroscopy (FTIR) test, and analyzed quantitatively descriptively and inferentially. The results showed that microplastics were present in all samples with an abundance range of 148.88 to 384.58 particles kg-1. The abundance of microplastics in Serang River sediments was highest in the downstream area, with an average of 321.99 ± 46.76 particles kg-1. The microplastic was identified as a polyethylene polymer as the main ingredient for making single-use plastics. The characteristics of microplastics in Serang River sediments are dominated by a size range of 10-50 m, in the form of fragments and films, and transparent colors.
Microplastics pollution in sediment of Serang River Kulon Yogyakarta Province Ismiyati Ismiyati; Inggita Utami; Fahmi Hermawan Tricahya; Pidianto Pidianto; Suci Rahmawati; Annesa Mahsa Ramadhanti; Anjar Dimara Sakti
Jurnal Rekayasa Proses Vol 17, No 1 (2023)
Publisher : Departemen Teknik Kimia Fakultas Teknik Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.73233

Abstract

Microplastics that can harm living things have been found in large rivers in Yogyakarta Province to the digestive tract of fish. However, rivers in the suburban areas of the province, such as the Serang River, have not yet been identified, although many local communities still use them. This study aimed to analyze the abundance, type of polymer, and characteristics of microplastics found in Serang River sediments. Sampling was carried out in December 2019 in the upstream, midstream, and downstream areas of the river. Six sediment samples were taken from each area and randomly divided into two stations. Each sediment sample was then dried, weighed dry, separated the microplastics, observed visually, calculated the abundance of microplastics, grouped shape, size, and color (characteristics), identified the type of polymer by Fourier-transform infrared spectroscopy (FTIR) test, and analyzed quantitatively descriptively and inferentially. The results showed that microplastics were present in all samples with an abundance range of 148.88 to 384.58 particles kg-1. The abundance of microplastics in Serang River sediments was highest in the downstream area, with an average of 321.99 ± 46.76 particles kg-1. The microplastic was identified as a polyethylene polymer as the main ingredient for making single-use plastics. The characteristics of microplastics in Serang River sediments are dominated by a size range of 10-50 m, in the form of fragments and films, and transparent colors.
Development of Secondary Forest Succession Based on Estimation of Forest Carbon Stocks Ten Years Post-Merapi Volcano Eruption Inggita Utami; Anjar Dimara Sakti; Febriant Isabella Yusuf; Fahmiatul Husna; Denni Susanto
HAYATI Journal of Biosciences Vol. 30 No. 5 (2023): September 2023
Publisher : Bogor Agricultural University, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.4308/hjb.30.5.834-842

Abstract

The eruption of the most active volcano in Indonesia, Mount Merapi, has resulted in a very dynamic landscape as a form of ecosystem succession. This study aimed to analyze the carbon stock and vegetation composition in the secondary forest with variations in the level of disturbance after the 2010 eruption of Mount Merapi. Data collection was carried out in January 2020, in which biomass, necromass, and soil organic carbon data were taken in plot transect and Geographic Information Systems carbon stock products compared field data. The results showed that secondary forests at stations A and B with low and medium disturbance levels had carbon stocks in the high category. In contrast, station C at Cangkringan Resort, with high disturbance levels, still had carbon stock with a low category. Furthermore, the comparison of 2020 field data with GIS carbon stock products concluded a similar pattern between carbon stock from aboveground biomass WHRC 2010 and belowground biomass NASA 2010. This research concludes that the disturbance affected forest carbon stocks ten years after the 2010 Merapi eruption. Therefore, monitoring the vegetation community needs to be carried out annually through a combination of spatial and direct checks in the field.
Monitoring Aerosol Optical Depth for Air Quality Through Himawari-8 in Urban Area West Java Province Indonesia Riki Ridwana; Shafira Himayah; Muh Fiqri Abdi Rabbi; Izma Maulana Ahmad Lugina; Azhari Al Kautsar; Anjar Dimara Sakti
JURNAL GEOGRAFI Vol 15, No 2 (2023): JURNAL GEOGRAFI
Publisher : Universitas Negeri Medan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24114/jg.v15i2.36866

Abstract

Air quality is a crucial parameter in human life. One air quality indicator can be observed through Aerosol Optical Depth (AOD). If these substances are pollutants such as particulate matter, aerosols, and ozone, it is confident that air quality will deteriorate, threatening human health and causing climate change. AOD monitoring can be used as a basis for policymakers and related parties to maintain the stability of air quality in the atmosphere. Many ground observation stations monitor air quality by obtaining data on PM2.5 and PM10 aerosol particles. However, the number of ground stations is limited, resulting in incomplete data. Fortunately, remote sensing satellites have the advantage of covering large areas and providing continuous observations, with the ability to gather information on large-scale aerosol and obtain spatiotemporal distribution. Therefore, this research aims to obtain AOD through Himawari-8 and analyze the spatiotemporal air quality in urban areas of West Java based on AOD. The research methodology used in this study is descriptive analysis with an empirical research approach. Assisted by remote sensing technology and Geographic Information Systems, this research generates AOD data extraction that can be obtained from the new generation satellite of Himawari-8. The distribution of AOD levels and spatiotemporal monitoring in urban areas of West Java is very dynamic depending on anthropogenic activity in a particular area and time. Keywords: Aerosol Optical Depth (AOD), Air Quality, Himawari-8
Microplastics pollution in sediment of Serang River Kulon Yogyakarta Province Ismiyati; Utami, Inggita; Tricahya, Fahmi Hermawan; Pidianto; Rahmawati, Suci; Ramadhanti, Annesa Mahsa; Sakti, Anjar Dimara
Jurnal Rekayasa Proses Vol 17 No 1 (2023): Volume 17, Number 1, 2023
Publisher : Jurnal Rekayasa Proses

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jrekpros.73233

Abstract

Microplastics that can harm living things have been found in large rivers in Yogyakarta Province to the digestive tract of fish. However, rivers in the suburban areas of the province, such as the Serang River, have not yet been identified, although many local communities still use them. This study aimed to analyze the abundance, type of polymer, and characteristics of microplastics found in Serang River sediments. Sampling was carried out in December 2019 in the upstream, midstream, and downstream areas of the river. Six sediment samples were taken from each area and randomly divided into two stations. Each sediment sample was then dried, weighed dry, separated the microplastics, observed visually, calculated the abundance of microplastics, grouped shape, size, and color (characteristics), identified the type of polymer by Fourier-transform infrared spectroscopy (FTIR) test, and analyzed quantitatively descriptively and inferentially. The results showed that microplastics were present in all samples with an abundance range of 148.88 to 384.58 particles kg-1. The abundance of microplastics in Serang River sediments was highest in the downstream area, with an average of 321.99 ± 46.76 particles kg-1. The microplastic was identified as a polyethylene polymer as the main ingredient for making single-use plastics. The characteristics of microplastics in Serang River sediments are dominated by a size range of 10-50 m, in the form of fragments and films, and transparent colors.
Analisis Data Sentinel-2 Untuk Mendukung Pariwisata Kawasan Wakatobi Artaningh, Febzi; Anggraini, Tania Septi; Sihotang, Elstri; Sakti, Anjar Dimara; Agustan
Jurnal Penginderaan Jauh Indonesia Vol 2 No 2 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/jpji.v2i2.264

Abstract

Pariwisata memiliki peran dalam meningkatkan ekonomi suatu kawasan, sehingga perlu dilakukan perencanaan, pengelolaan dan pemantauan kawasan pariwisata yang berkelanjutan. Metode penginderaan jauh berbasis satelit terbukti handal untuk mendapatkan informasi suatu kawasan secara efektif dan teratur. Satelit Sentinel-2 memantau perubahan tutupan lahan secara berkala sehingga dapat digunakan untuk analisis daya dukung lingkungan untuk kepariwisataan. Pengolahan data Sentinel-2 yang terdiri dari beberapa citra (scene) pada dua waktu pengamatan dilakukan dengan strategi mosaic dan komposit warna. Keunikan pesisir Kawasan Wakatobi dianalisis dengan metode indeks vegetasi dikombinasikan dengan data pasut. Terdapat beberapa objek yang terindikasi mengalami perubahan spektrum dan wilayah yang mengalami perubahan berkisar 30,55 km2 dalam tempo 5 bulan. Objek menarik tersebut berpotensi untuk mendukung wisata di Kawasan Wakatobi.
Pemantauan Konsentrasi Gas SO2 di Sekitar Gunung Sinabung Menggunakan Citra Satelit Sentinel-5 Precursor Sihotang, Elstri; Artaningh, Febzi; Anggraini, Tania Septi; Sakti, Anjar Dimara; Agustan
Jurnal Penginderaan Jauh Indonesia Vol 2 No 2 (2020)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/jpji.v2i2.265

Abstract

Gunung Sinabung adalah gunung tipe A yang sampai saat ini masih aktif. Gunung Sinabung terletak di salah satu kabupaten di Provinsi Sumatra Utara, yaitu Kabupaten Karo. Erupsi Gunung Sinabung tidak hanya berdampak pada suatu wilayah saja, akan tetapi juga pada wilayah yang ada di sekitar gunung tersebut. Salah satu zat yang disemburkan oleh gunungapi pada saat erupsi adalah gas SO2. Gas SO2 merupakan parameter penting untuk menentukan kualitas udara. Gas SO2 yang terdapat pada atmosfer melalui proses natural dan proses antropogenik. Data gas SO2 didapatkan dengan memanfaatkan hasil rekaman Sentinel-5P. Data Sentinel-5P diolah dan dianalisis untuk dapat mengetahui konsentrasi gas SO2 di wilayah sekitar Gunung Sinabung dan juga perubahan konsentrasigas SO2 di beberapa daerah yang dijadikan sampel. Secara umumkonsentrasi gas SO2 tertinggi berada pada kawah Gunung Sinabung,akan tetapi pada tanggal 22 Juli 2019 konsentrasi gas SO2 padaKabupaten Deli Serdang lebih tinggi sekitar 75% dari konsentrasigas SO2 di daerah kawah. Penelitian ini juga dapat menunjukkanbahwa data Sentinel-5P dapat digunakan untuk memantau gas diatmosfir.
Co-Authors Agustan Agustan Agustan, Agustan Ahmad Lugina, Izma Maulana Al Kautsar, Azhari Anggraini, Tania Septi Anggrainia, Tania Septi Annesa Mahsa Ramadhanti Artaningh, Febzi Azhari Al Kautsar Denni Susanto Fahmi Hermawan Tricahya Fahmiatul Husna Febriant Isabella Yusuf Himayah, Shafira Inggita Utami Inggita Utami Ismiyati Ismiyati Ismiyati Izma Maulana Ahmad Lugina Muh Fiqri Abdi Rabbi Pidianto Pidianto Pidianto Rabbi, Muh Fiqri Abdi Ramadhanti, Annesa Mahsa Ridwana, Riki Sihotang, Elstri Suci Rahmawati Suci Rahmawati, Suci Tricahya, Fahmi Hermawan Utami, Inggita