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All Journal ILMU KELAUTAN: Indonesian Journal of Marine Sciences Jurnal Kelautan Tropis Communications in Science and Technology Forest and Society International Journal of Remote Sensing and Earth Sciences (IJReSES) Jurnal HIDROPILAR Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital Geoid - Journal of Geodesy and Geomatics
Gathot Winarso, Gathot
Remote Sensing Application Center LAPAN
Aerospace Engineering Agriculture, Biological Sciences & Forestry Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Environmental Science Social Sciences

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Rancang Bangun Single Beam Echosounder (SBES) Menggunakan Piezoelectric dengan Menambah Band Pass Filter Berbasis Microcontroller Raspberry Pi Pico : Single Beam Echosounder Design using Piezoelectric With Addition of Band Pass Filter Based on Raspberry Pi Pico Microcontroller Kristianto, Petrus Guntur; Adhi Kusuma Negara; Yulianto; Santosa, Yoyok N.; Winarso, Gathot; Putra, I Wayan Sumardana E.
Jurnal Hidropilar Vol. 10 No. 2 (2024): Jurnal Hidropilar
Publisher : Sekolah Tinggi Teknologi Angkatan Laut (STTAL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37875/hidropilar.v10i2.346

Abstract

Penelitian ini berfokus pada pengembangan alat pengukuran kedalaman yang akurat untuk aplikasi survei hidroakustik, mengingat pentingnya data kedalaman yang tepat dalam berbagai kegiatan maritim. Alat yang dirancang adalah Single Beam Echosounder (SBES) yang memanfaatkan teknologi piezoelectric dan dilengkapi dengan band pass filter berbasis microcontroller Raspberry Pi Pico. Metode penelitian yang digunakan adalah deskriptif kuantitatif, yang melibatkan pengamatan dan pengukuran di dua lokasi berbeda, yaitu kolam renang dan laut. Hasil pengujian menunjukkan bahwa alat ini memiliki penyimpangan kalibrasi yang signifikan, yaitu 7 meter di kolam renang dan 1 meter di laut, yang menunjukkan bahwa alat ini belum memenuhi standar survei yang ditetapkan oleh International Hydrographic Organization (IHO). Kesimpulan dari penelitian ini adalah bahwa meskipun alat yang dikembangkan menunjukkan potensi untuk digunakan dalam survei hidroakustik, masih diperlukan perbaikan lebih lanjut untuk meningkatkan akurasi dan kinerja alat agar dapat berfungsi secara optimal. Penelitian ini diharapkan dapat memberikan kontribusi dalam pengembangan teknologi pengukuran kedalaman yang lebih baik di masa depan, serta menjadi referensi bagi penelitian selanjutnya di bidang hidroakustik dan teknologi maritim
VALIDASI ALGORITMA ESTIMASI KONSENTRASI CHL-A DENGAN MENGGUNAKAN CITRA SATELIT LANDSAT 8(Studi Kasus : Laut Selatan Pulau Lombok, NTB) Jaelani, Lalu Muhamad; Sulistyah, Umroh Dian; Winarso, Gathot
GEOID Vol. 12 No. 1 (2016)
Publisher : Departemen Teknik Geomatika ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/geoid.v12i1.1510

Abstract

Lombok southern sea has a high marine productivity which signifies fertility of a body water. Chl-a is one of the factors associated with fertility in the Lombok southern sea. Remote sensing can be used for mapping the distribution of Chl-a more efficient and accurate to extract the physical parameters of the water. Physical parameters accuracy is derived from remote sensing data depending on atmospheric correction algorithms and algorithms model to calculate the concentration of Chl-a.In this study, Landsat 8 was used to validate the existing estimation concentration algorithm of Chl-a by in-situ data collected in Lombok southern sea. Atmospheric corrected reflectance by 6SV and Flaash, as well as surface reflectance product from USGS were used as input of that algorithm. The algorithm with 6SV-reflectance produced highest accuracy with NMAE of 26.095%.Instead of using existing algorithm, a new algorithm following local characteristics of Lombok southern sea was developed. The developed algorithm based on log Rrs( 4) and log (Rrs ( 5)) produced high  correlation (R2 = 0.551). Chl-a concentration estimation from Landsat 8 data, through atmospheric correction of 6SV produced NMAEof 13.484%.
ANALISIS KUALITAS AIR LAUT UNTUK PENENTUAN LOKASI BUDIDAYA KERAPU BEBEK MENGGUNAKAN CITRA SATELIT LANDSAT-8 (Studi Kasus : Teluk Lampung, Lampung) Jaelani, Lalu Muhamad; Kartikasari, Fitriana; Winarso, Gathot
GEOID Vol. 12 No. 1 (2016)
Publisher : Departemen Teknik Geomatika ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/geoid.v12i1.1524

Abstract

Cromileptes Altivelis is one kind of exported fish commodities which are common in some areas of Indonesia. It cultured using Keramba Jaring Apung (KJA). Lampung Bay is one of the waters area that have potential as a location for the cultivation of those fishs. Determination of location for Cromileptes Altivelis aquaculture activities has strongly influenced by the quality of water because it affects the metabolism of fish growth. Described in the Standar Nasional Indonesia (SNI) 6487.4:2011 on Enlargement Production Cromileptes Altivelis in Keramba Jaring Apung (KJA) where the salinity, sea surface temperature, and pH are the important parameters that can affect the quality of sea water. In this research, the method that used to determine the location of CromileptesAltivelis aquaculture was remote sensing using Landsat-8 satellite imagery. This was because the Landsat-8 could work at visible wave (visible spectrum) where there are channels that can be used to extract quality parameters of ocean water. In determining the concentration of sea water quality parameters, this research used Son, et al algorithm and Syariz, et al algorithm to determine the value of salinity and sea surface temperature.Condition of water quality parameters in the Bay of Lampung was quite in accordance with the limit values listed in SNI 6487.4:2011 to be location of CromileptesAltivelis. Dominance value of sea surface temperature distribution was 26.05-30.05 C, dominance value of salinity distribution was 31.40-39.25 psu, and dominance value of pH distribution was 7.00–13.99. Based on the analysis of sea water quality parameters in Lampung Bay, territorial waters obtained 85.171,76 ha area corresponding to the location of Cromileptes Altivelis aquaculture.
Pemanfaatan Data Sub Bottom Profiler untuk Identifikasi Pipa Bawah Laut (Studi Kasus Perairan Karangantu Banten): Application of Sub-Bottom Profiler Data for Subsea Pipeline Identification (Case Study in Karangantu Waters, Banten) Saputra, Aang Juli; Mulyadi, Dikdik Satria; Handoko, Dadang; Kurniawan, Endro Sigit; Adrianto, Dian; Santoso, Agus Iwan; Adi, Novi Susetyo; Winarso, Gathot; Fatoni, Khoirol Imam; Putra, Iska; Santosa, Yoyok Nurkaya
Jurnal Hidropilar Vol. 11 No. 1 (2025): Jurnal Hidropilar
Publisher : Sekolah Tinggi Teknologi Angkatan Laut (STTAL)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37875/hidropilar.v11i1.387

Abstract

SBP merupakan alat survei akustik yang mampu mendeteksi objek yang terpendam dalam sedimen dasar laut melalui pemancaran gelombang suara berfrekuensi rendah. Penelitian ini bertujuan untuk mengidentifikasi Pipa Bawah Laut menggunakan data Sub Bottom Profiler (SBP) di perairan Karangantu, Banten. Data yang digunakan berasal dari Latihan Praktek Survei Hidro-Oseanografi Mahasiswa S1 Angkatan 44 STTAL Hidros tahun 2024 dengan instrumen SBP Innomar SES 2000 Compact dengan frequensi 10 kHz. Metodologi penelitian melibatkan proses, pengolahan data dan  menggunakan perangkat lunak seperti SonarWiz, Seisee, dan Matlab, serta validasi terhadap Peta Laut Indonesia dan data pendukung lainnya. Hasil penelitian menunjukkan bahwa SBP dapat secara efektif mengidentifikasi posisi, kedalaman, dan dimensi pipa bawah laut serta menentukan nilai intensitas hambur balik (backscattering strength) yang menjadi indikator keberadaan material logam. Hasil pengolahan dan analisa dari SonarWiz menunjukkan rata-rata dimensi Pipa Bawah Laut dari 20 lajur memiliki lebar 0.84eter dan tinggi 0.58 meter. Hasil pengolahan nilai hambur balik target dari 20 lajur teridentifikasi mendapatkan nilai backscattering strength ( Hambur Balik ) rata-rata -0.525 dB, nilai hambur balik tertinggi pada target 16 dengan nilai -0.03 dB, dan terendah pada target 8 dengan nilai -1.823 dB, yang menunjukkan kemungkinan besar nilai hambur balik tertinggi adalah objek keras berupa Pipa Bawah Laut. Penelitian ini menunjukkan bahwa penggunaan SBP memberikan kontribusi signifikan dalam mendukung pemeliharaan infrastruktur bawah laut serta mitigasi risiko kerusakan.  
KAJIAN PENGGUNAAN DATA INDERAJA UNTUK PEMETAAN GARIS PANTAI (STUDI KASUS PANTAI UTARA JAKARTA) Winarso, Gathot; Joko, Haris; Arifin, Samsul
Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital Vol. 6 No. 1 (2009)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/inderaja.v6i1.3245

Abstract

Shore line is important to define seawater administration borders of a province, a district, and a city related to decentralization. The shore line can be extracted from remote sensing data. However, the definition of vertical datum reference for the shore line and low water level place are totally different. The sea water level position for shore line used in the hydrographic mapping is mean high sea level (MHSL), while the sea water level for shore line used in the geodetic mapping is mean sea level (MSL). However, remote sensing data were recorded in specific time that also have a specific sea water level, might be in a high or a low sea level depending on the location. Objectives of this research are to understand the position of the sea water level for the shore line mapping when the Landsat 7 is acquired and how to adjust to make a standard shore line definition. The landsat ETM+ composing of 543 (RGB) Maritime and Navigation Map of 1 : 50.000 scale were overlaid and compared in same condition of spheroid, datum, and projection system. In the area where there is no significant change due to the dynamic of coastal processes, the result of the overlaid image and map indicated that the shore line matched between each other. However, in the area where there are some indicated change, resulted on some differences between the shore line from the image and the map. The sea level position when the image was acquired was in high sea level and the image shore line was as same as the hydrographic shore line. There are two conditions when an image is acquired on a difference water level position. The shore line position would not change in area without 0 meter contour line and would change in area have 0 meter contour line. Adjustment should be made in the second condition.
KAJIAN PERUBAHAN GARIS PANTAI MENGGUNAKAN DATA SATELIT LANDSAT DI KABUPATEN KENDAL Arief, Muchlisin; Winarso, Gathot; Prayogo, Teguh
Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital Vol. 8 No. 1 (2011)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/inderaja.v8i1.3253

Abstract

Indonesia has the second longest of coastal line in the world. The change of coastal line is generated by sediment transport from the upland and the sea or generated by coming energies of sea current and wave. Coastal line change have been analyzed by multi-temporal analysis using Landsat Series Satellite (MSS, TM and ETM+). Visual interpretation of RGB 542 was done to identify coastal line, and using other combination if necessary. Based on analysis of Landsat data the coastal lines length on 1972, 1991, 2001 and years 2008 was 43.172 m, 52.646 m, 50.171 m, 53.827 m, respectively, and the change of coastal lines occurred dominant along the capes and the bays and the other places was not significantly changed. Based on Landsat satellite data analysis, in 1972 to 1991 period the abrasion and accretion occurred on 765,14 ha and 356,00 ha area, in 1991 to 2001 period were 90,64 ha and 261,89 ha, in period 2001 to 2008 were 111,67 ha and 80,37 ha.
PENGARUH PENGAMBILAN TRAINING SAMPLE SUBSTRAT DASAR BERBEDA PADA KOREKSI KOLOM AIR MENGGUNAKAN DATA PENGINDERAAN JAUH Budhiman, Syarif; Winarso, Gathot; Asriningrum, Wikanti
Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital Vol. 10 No. 2 (2013)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/inderaja.v10i2.3276

Abstract

Lyzen ga (1978, 1981) developed a method to correct the water column using a ratio of bottom waters substrates reflectance on 2 (two) different bands, assuming that the ratio is the same for a different bottom type. The problem arise when the Lyzenga method was being simplified. In this case by sampling different bottom substrates as input. This study aims to compare the effects of the simplification process with the result of the calculation using the actual Lyzenga method. The calculation of water column correction followed the process described in the guide by UNESCO (1999) and Green et al (2000). The results showed that samples from two different substrates which has a very different radiance (reflectance) increased the index value of the substrate in deeper water.
PEMANFAATAN DATA PENGINDERAAN JAUH UNTUK MENDUKUNG PERENCANAAN OPERASI KEAMANAN LAUT DI LAUT ARAFURU Winarso, Gathot; Kurniawan, Eko
Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital Vol. 11 No. 2 (2014)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/inderaja.v11i2.3305

Abstract

Large sea area has been patrolled continuly by Indonesia Navy need a lot of fleets to cover all Indonesian seawaters and also spend a huge of budget. Consequently, it is important to have smart strategic to optimise the fleet and to make efficient the logistic budget. The objective of this research is to apply remote sensing analysis to get sensitive timing operation on violation and security disturbance related to fishing activity. According to assumption that security threat might occur in the area where fishing activity is high that will be concentrated in the high productivity area. The chlorophyll-a concentration estimated from satellite data MODIS level-2 were received from NASA United State of America. Daily data from 2008-2013 was calculated into monthly average to get monthly variation of chlorophyll-a concentration within a year during 5 years. The analysis was done in general area and smaller unit area to understand the different variation at smaller area. The variation of chlorophyll-a in smaller unit area will differ the plan timing in patrol activity specific for those area. The data analysis resulted that phytoplankton bloom indicated occurred to May- September every year. The month of phytoplankton bloom can be suggested become a more intense patrol activity. In general, there are no different result from smaller unit area, but only small shifting of timing of bloom and changing of each different unit area.
ESTIMASI BATIMETRI DARI DATA SPOT 7 STUDI KASUS PERAIRAN GILI MATRA NUSA TENGGARA BARAT Setiawan, Kuncoro Teguh; Manessa, Masita Dwi Mandini; Winarso, Gathot; Anggraini, Nanin; Giarrastowo, Gigih; Asriningrum, Wikanti; Herianto, Herianto; Rosid, Syamsu; Supardjo, A. Harsono
Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital Vol. 15 No. 2 (2018)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/inderaja.v15i2.3342

Abstract

Indonesia is an archipelagic state consists of five large islands and thousands of small islands surrounded by shallow marine waters. For this reason, complete and accurate bathymetric information is needed. Large scale bathymetry data in Indonesian waters is still limited, including in the shallow sea waters of Gili Matra, NTB Province. To overcome these problems, remote sensing technology is used. The aim of the study was to analyze the effect of shallow marine habitat base objects on estimating bathymetry from SPOT 7 satellite images. Many methods can be used to produce estimated bathymetry with this technology. The analysis used in this study is multiple linear regression (MLR). The data used is SPOT 7 satellite imagery in the shallow sea waters of Gili Matra, West Nusa Tenggara Province. The estimation of bathymetry was carried out using insitu depth data with two modifications. The first modification did not pay attention to the basic habitat object types and the second modification paid attention to the coral habitat, seagrass, macroalgae and substrate objects. The results of this study provide the value of determination R2 which increased from 72.1% to 78.6% and decreased the RMSE value from 3.3 meters to 2.9 meters.
PEMANFAATAN METODE SEMI-ANALITIK UNTUK PENENTUAN BATIMETRI MENGGUNAKAN CITRA SATELIT RESOLUSI TINGGI Setiawan, Kuncoro T.; Winarso, Gathot; Ginting, Devica N. BR.; Manessa, M.D.M.; Surahman, Surahman; Anggraini, Nanin; Hartuti, Maryani; Asriningrum, Wikanti; Parwati, Ety
Jurnal Penginderaan Jauh dan Pengolahan Data Citra Digital Vol. 18 No. 1 (2021)
Publisher : Institut Teknologi Sepuluh Nopember

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30536/inderaja.v18i1.3361

Abstract

Semi-Analytical methods for detecting bathymetry using medium resolution satellite image data is the development of methods for determining satellite-based bathymetry. This method takes into account the principle of the propagation of light waves in water and the intensity of incident light which decreases according to the increase in depth traversed. The satellite image used is SPOT 7. The image is the latest generation of SPOT satellites which have 4 multispectral channels with a spatial resolution of 6 meters. Therefore, this high-resolution image is expected to produce bathymetry in shallow marine waters more accurately. Semi-analytical methods used to detect bathymetry are Benny and Dawson's methods. This method uses a comparison of the reflectance value between deep water and shallow water by taking into account the approach of the water column attenuation coefficient and the elevation angle of the satellite. The purpose of this study is to detect bathymetry in shallow sea waters. The study area is Karimunjawa Island coastal waters, Jepara, Central Java. The data used is the SPOT 7 acquisition image dated 18 May 2017 has been analysed, in situ depth data as well as tide data. The results showed that off the three SPOT 7 channels, the depth range of 0 - 11.45 meters for the blue channel band, 0 - 10.49 meters for the green channel and 0 - 9.72 meters for the channel red. The accuracy of the bathymetry detection results from the green channel shows quite good results to a depth of less than 5 meters. Green channel parameters of the Benny Dawson algorithm used are 0.3274 for Ld, 0.8932 for Lo, attenuation coefficient of 0.823 and Cosec E '0.6311272.
Co-Authors . Emiyati, . Abd. Rahman As-syakur Abdul Basith Adhi Kusuma Negara Aditya Prayoga Adrianto, Dian Arya Arya, Arya Azis, Kholifatul Aziz, Kholifatul Azura Ulfa, Azura Baehaqi Eko Kurniawan Ety Parwati Faristyawan, Rizky Fatoni, Khoirol Imam Giarrastowo, Gigih Ginting, Devica N. BR. Ginting, Devica Natalia Br Handoko, Dadang Heri Santoso Herianto Herianto Ihlas, Ihlas Imam Fatoni, Khoirol Iwan Santoso, Agus Jaelani, Lalu Muhamad Jantarto, Dwi Joko, Haris Kristianto, Petrus Guntur Kuncoro Teguh Setiawan, Kuncoro Teguh Kurniawan, Endro Sigit Kusuma, Fajar Bahari Manessa, M.D.M. Maryani Hartuti, Maryani MASITA DWI MANDINI MANESSA, MASITA DWI MANDINI Muchlisin Arief MUHAMMAD ULIN NUHA Mulyadi, Dikdik Satria Nandika, Muhammad Rizki Nanin Anggraini, Nanin Novi Susetyo Adi, Novi Susetyo Prasetio, Wiji Prastyani, Ratna Putra, I Wayan Sumardana E. Putra, Iska Ratih Dewanti -Hariyadi Rexano B, Leonardo Rosid, Mohammad Syamsu S. Mulyadi, Dikdik Safitri, Siti Nurulita Mutiara Samsul Arifin Santosa, Yoyok N. Santosa, Yoyok Nurkaya Santoso, Agus Iwan Saputra, Aang Juli Setiawan, Kuncoro T. Setiyadi, Johar Sigit Kurniawan, Endro Suardana, A. A. Md. Ananda Putra Suardana, A.A. Md. Ananda Putra Sulistyah, Umroh Dian Sulistyah, Umroh Dian Supardjo, A. Harsono Supardjo, Harsono Surahman Surahman Surya Dharma, Candrasa Syamsu Rosid Syarif Budhiman Takahiro Osawa Teguh Prayogo Teguh Utomo Wijaya, Agung Dwi Wikanti Asriningrum, Wikanti Yonif Affan, Fajrin Yulianto