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All Journal JPSE (Journal of Physical Science and Engineering) Journal of Geoscience, Engineering, Environment, and Technology Jurnal Ilmiah Universitas Batanghari Jambi AKSIOLOGIYA : Jurnal Pengabdian Kepada Masyarakat Pendas : Jurnah Ilmiah Pendidikan Dasar Jurnal Akuatiklestari JTAM (Jurnal Teori dan Aplikasi Matematika) Martabe : Jurnal Pengabdian Kepada Masyarakat Media Keperawatan Indonesia QARDHUL HASAN: MEDIA PENGABDIAN KEPADA MASYARAKAT Jurnal Rekayasa Hijau Indonesian Physical Review JPPKn (Jurnal Ilmiah Pendidikan Pancasila dan Kewarganegaraan) Jurnal Fisika dan Terapannya Didaktik : Jurnal Ilmiah PGSD STKIP Subang Jurnal Teknik Industri Terintegrasi (JUTIN) GANDRUNG: Jurnal Pengabdian Kepada Masyarakat Buletin Poltanesa ARRUS Journal of Mathematics and Applied Science Multica Science and Technology TEKIBA : Jurnal Teknologi dan Pengabdian Masyarakat Baselang: Jurnal Ilmu Pertanian, Peternakan, Perikanan dan Lingkungan Kontribusi: Jurnal Penelitian dan Pengabdian Kepada Masyarakat Baitul Ulum: jurnal Ilmu Perpustakaan KREATIF: Jurnal Pengabdian Masyarakat Nusantara JURNAL TEKNOLOGI PANGAN DAN ILMU PERTANIAN (JIPANG) IRA Jurnal Teknik Mesin dan Aplikasinya (IRAJTMA) Progressive Physics Journal Journal of Artificial Intelligence and Digital Business Innovative: Journal Of Social Science Research Jurnal Nusantara Berbakti Jurnal Taguchi : Jurnal Ilmiah Teknik dan Manajemen Industri Geosains Kutai Basin Asian Journal of Science, Technology, Engineering, and Art Bhinneka: Jurnal Bintang Pendidikan dan Bahasa CORNER Ikhlas: Jurnal Ilmiah Pendidikan Islam Uranus: Jurnal Ilmiah Teknik Elektro, Sains dan Informatika Jurnal Standardisasi Aksi Kita: Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Indonesia
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Journal : Geosains Kutai Basin

 1 
STUDI PEMANFAATAN AIR TANAH DAN POTENSI INTRUSI AIR LAUT DI DAERAH PESISIR KOTA BALIKPAPAN Septiardi, Muhammad Evan; Mislan, Mislan; Natalisanto, Adrianus Inu
GEOSAINS KUTAI BASIN Vol 2 No 1 (2019)
Publisher : Geophysics Study Program, Faculty of Mathematics and Natural Sciences, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/geofisunmul.v2i1.334

Abstract

Research on the quality of ground water has been performed through boreholes in the city of Balikpapan to find out an indications of the potential of sea water intrusion based on data. The study began with choosing the companies as groundwater user in two places, namely the coastal of manggar and the coastal of the city of Balikpapan. The next steps were to take the drill water samples and examine the quality. The examined were salinity, TDS (Total Dissolve Solid), conductivity and pH of water. The water categories were divided into 3 ie fresh water, with salinity value <1 ppt; brackish with salinity value between 1-3 ppt; and salt water with value> 3 ppt. After those steps the data were interpreted and then contructed to be the image of salinity contour.
SOIL MOVEMENT ANALYSIS BASED ON MAXIMUM SOIL SPEED PATTERNS DUE TO THE LOMBOK EARTHQUAKE Maulidsandy, Penta Adenata; Lepong, Piter; Mislan, Mislan
GEOSAINS KUTAI BASIN Vol 5 No 1 (2022)
Publisher : Geophysics Study Program, Faculty of Mathematics and Natural Sciences, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/geofisunmul.v5i1.780

Abstract

ABSTRACT Earthquake activity in Lombok, West Nusa Tenggara (NTB) gives rise to ground movement, this ground movement can be used to predict the intensity of the next earthquake. The purpose of this study is to determine the movement of land based on the pattern of maximum soil velocity that occurred due to the Lombok Earthquake July 29, 2018, which can be used to predict the intensity of the next earthquake. This study uses secondary earthquake data (magnitude) obtained from the USGS (United States Geological Survey). Magnitude data were analyzed using empirical formulas so that the values ​​of intensity, maximum ground velocity and contour maps were obtained. The results show that the movement of the land due to the earthquake moved very quickly towards the north, quickly towards the east, quickly towards the south and finally to the south slowly. The highest maximum ground velocity located in Obel-Obel Village with the value of 23,2 cm / s. The calculation result in the form of this maximum ground velocity can be used as a parameter to predict the upcoming earthquakes that will occur at Lombok or the other side of world.
Strategi Adaptasi Perubahan Iklim Melalui Pemanfaatan Air Hujan Untuk Penyediaan Air Bersih Di Kota Tarakan-Kalimantan Utara mislan, Mislan; Partimin, Partimin
GEOSAINS KUTAI BASIN Vol 5 No 2 (2022)
Publisher : Geophysics Study Program, Faculty of Mathematics and Natural Sciences, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/geofisunmul.v5i2.991

Abstract

Perubahan iklim diyakini sangat berdampak terhadap ketahanan air di perkotaan. Dampak tersebut diantaranya ditunjukkan adanya perubahan pola curah hujan dan anomali iklim, selanjutnya dampak tersebut berpengaruh terhadap ketersediaan air baik secara kuantitas maupun kualitas, serta meningkatnya daya rusak air. Kota Tarakan memiliki luas 655,77 km2 merupakan pulau kecil yang rentan terhadap perubahan iklim. Kerentanan perubahan iklim tersebut mencakup terbatasnya penyediaan air bersih, kejadian banjir dan longsor dan meningkatnya kenaikan muka air laut. Dengan curah hujan tahunan rata-rata sebesar 3.898,2 mm maka tebal curah hujan yang diperoleh dalam 1 hari sebesar 145 lt. Dalam 1 tahun dengan jumlah rumah tangga 52.602, volume air yang dapat ditampung mencapai 2.782.600 m3 atau bernilai sekitar Rp. 3.338.400.000 sampai Rp. 19.478.200.000. Untuk mengembalikan pembelian dan pemasangan drum/tanki bagi 52.602 rumah tangga diperlukan investasi senilai Rp. 84.163.200.000,- atau diperlukan kembali modal antara 4,32 sampai 25 tahun. Pemanfaatan air hujan sangat cocok untuk dipilih karena tidak memerlukan teknologi yang tinggi, masyarakat sudah sangat familiar dan curah hujan di Tarakan sangat tinggi. Pemanfaatan air hujan diyakini akan meningkatkan ketahanan air melalui meningkatnya ketersediaan air bersih dan berkurangnya air limpasan (yang selanjutnya mengurangi kejadian dan intensitas banjir), serta penghematan terhadap pengeluaran biaya pemanfaatan air oleh masyarakat. Pemanfatan air hujan harus dimasyarakatkan dan dapat ditempuh melalui penetapan kebijakan pemanenan air hujan, sosialisasi, pendampingan, pembentukan komunitas, dan pemberian insentif serta kajian teknologi pemanfaatan air hujan yang ekonomis dan teknologi yang sederhana.
STUDI TRANSPOR SEDIMEN DI PERAIRAN PANTAI KALIMANTAN TIMUR DENGAN MENGGUNAKAN MODEL HIDRODINAMIKA Prasetiyo, An’am; Yusuf, Mustaid; Mislan, Mislan
GEOSAINS KUTAI BASIN Vol 2 No 1 (2019)
Publisher : Geophysics Study Program, Faculty of Mathematics and Natural Sciences, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/geofisunmul.v2i1.348

Abstract

The study was conducted in Balikpapan Bay, Adang Bay, and Apar Bay to simulate sediment transport induced by tidal current. The sediment transport information is very important for environmental management as well as environmental impact analysis. This study has applied COHERENS (Coupled Hydrodynamical Ecological model for Regional and Shelf Seas). Barotropic mode of COHERENS has performed the simulation from 15 December 2012 to 14 January 2013, using 8 tidal component delivered from NAO99b as generation force. The model simulation result are verified using tides of observation data from 15 December to 31 December 2012 the Semayang Port. Verification result shows a good agreement between simulation data and observation. The RMSE is about 0.158 meter. In Balikpapan Bay the result shows higher concentration points is are located at Port area and Riko River Estuary, with sediment transport around 1.1577 x10-4 (kg/m2)/s, on Adang Bay the concentration point is located at inner part of Bay, with transport sediment around 1.6499 x10-4 (kg/m2)/s, and at Apar Bay concentration point is located at outer part of Bay, with sediment transport value around x10-15 (kg/m2)/s.
ANALISIS KADAR EMISI TRANSPORTASI DI SAMARINDA BERDASARKAN TIPE MESIN DAN KAPASITAS MESIN Yanti, Derli; Mislan, Mislan; Djayus, Djayus
GEOSAINS KUTAI BASIN Vol 3 No 2 (2020)
Publisher : Geophysics Study Program, Faculty of Mathematics and Natural Sciences, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/geofisunmul.v3i2.696

Abstract

Transportation emission levels can be analyzed based on the type of engine used. The purpose of this study is to determine the level of vehicle emissions each year and compare in samarinda. This research was conducted by measuring air emissions in different tool brands, the sukyoung SY-GA 401 brand used was the type of injection engine and carburetor, and the AGS-688 brand used was a diesel / diesel engine type where the measurement of the emission levels used the tool Automotive Emission Analyzer. Data was collected at the Kesuma Bangsa, Slamet Riyadi, and Wahid Hasyim points in 2013, 2014, 2015, 2016, 2018 in samarinda region known data on air emission levels, namely: Total pollutants of carbon monoxide (CO), carbon dioxide (CO2), carbon monoxide correction (COcorr), hydrocarbons (HC), oxygen (O2) and lambda (λ). The results showed that the analysis of air emission levels with the highest type of pollutant injection machine, namely HC in 2015 was 107.82 ppm based on the quality standard limits set by LH regulation No 05 of 2006 did not exceed the quality standard threshold of 200 ppm, pollutant carburetors the highest was found in HC pollutants in 2015 amounting to 434.35 ppm exceeding the quality standard threshold of 200 ppm and the highest solar pollutants were in the opacity pollutants in 2015 of 80.28% HSU based on the quality standard threshold stipulated by LH Regulation 05/2006 exceeding the quality standard threshold of 70% HSU.
STUDI PENENTUAN DAYA TAMPUNG BEBAN PENCEMAR KUALITAS AIR SUNGAI MAHAKAM DENGAN MENGGUNAKAN METODE QUAL2KW Jumiati, Yana; Mislan, Mislan; Subagiada, Kadek
GEOSAINS KUTAI BASIN Vol 3 No 1 (2020)
Publisher : Geophysics Study Program, Faculty of Mathematics and Natural Sciences, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/geofisunmul.v3i1.595

Abstract

Penelitian ini mengambil sungai Mahakam sebagai objek. Kasus memburuknya air sungai Mahakam diduga dipengaruhi oleh kegiatan bukaaan permukaan alam di sekitar DAS yang tidak terkendali dan sangat massif oleh kegiatan tambang, perkebunan dan kehutanan. Penelitian ini menggunakan bantuan program QUAL2Kw versi 5.1 untuk menghitung beban pencemaran yang masuk ke sungai. Pada awal pembangunan model dilakukan trial and error hingga diperoleh model yang mendekati (sesuai) kondis yang sebenarnya, setelah model tervalidasi, maka model dapat digunakan menghitung macam skenario. Pada penelitian ini menggunakan data kualitas air pada musim kemaru tahun 2018 penghujan dengan parameter kunci kualitas air yang digunakan adalah TSS, BOD dan COD dengan 3 skenario. Pada metode QUAL2Kw menggunakan skenario 1 menjelaskan tentang pencemar kosong, skenario 2 untuk menjelaskan Reduksi 30% dari beban pencemaran pada point source dan pada skenario 3 Baku Mutu Air Limbah Domestik pada point source. Hasil dari perhitungan daya tampung beban pencemaran sungai Mahakam pada musim kemarau untuk parameter TTS adalah 1,972Kg/Hari, BOD adalah 1,728Kg/Hari dan COD adalah sebesar 2,592Kg/Hari.
Laju Infiltrasi Air di Lubang Biopori pada Berbagai Jenis Tanah di Kelurahan Loa Bakung Arrosyidah, Mosy R; Djayus, Djayus; Mislan, Mislan; Munir, Rahmiati
GEOSAINS KUTAI BASIN Vol. 7 No. 1 (2024)
Publisher : Geophysics Study Program, Faculty of Mathematics and Natural Sciences, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/geofisunmul.v7i1.1237

Abstract

The reduction of green open space results in a lack of infiltration of rainwater into the soil and an increase in the amount of surface flow, one solution to overcome these problems is to implement a biopore infiltration hole system. This study aims to determine the rate and capacity of water infiltration in biopore holes based on various soil types in Loa Bakung Village. The infiltration rate was determined through direct measurement at 9 points in 3 locations with gleisol, podzolic, and podzolic haplik soil types, then measured by putting water into a hole with a diameter of 10 cm with a depth of 80 cm - 100 cm. The parameters measured are the difference in distance or height and time. The results of parameter measurements were made into a graph to obtain the highest infiltration rate at the research location, and determine the infiltration capacity using the Horton equation. Then, soil samples were analyzed by measuring soil physical properties that affect infiltration rates such as texture, porosity, permeability, and moisture content. The results showed that the infiltration rate and infiltration capacity varied in each location. Location 2 with podzolic soil type shows the highest infiltration rate and capacity value of 2820 cm/hour with an infiltration capacity of 2782.84 cm/hour. Followed by location 1 which is a gleisol soil type of 1224 cm/hour with an infiltration capacity of 1217.72 cm/hour, and the lowest value is shown in location 3 with a haplik podzolic soil type of 1050 cm/hour with an infiltration capacity of 1041.46 cm/hour.
ANALISIS RADIASI MEDAN ELEKTROMAGNETIK YANG DITIMBULKAN OLEH TELEPON SELULER BERDASARKAN VARIASI DAYA BATERAI Situmorang, Rosnalia Agnes; Mislan, Mislan; Rinaldi, Aditya
GEOSAINS KUTAI BASIN Vol 3 No 2 (2020)
Publisher : Geophysics Study Program, Faculty of Mathematics and Natural Sciences, Mulawarman University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30872/geofisunmul.v3i2.697

Abstract

ABSTRACT The research has been conducted on the analysis of electromagnetic field radiation caused by mobile phones. Based on battery power differences. The measurements were made on July 25, 2019, July 26, 2019, July 27, 2019 at the Instrumentation Laboratory at the Faculty of Mathematics and Natural Sciences, Molwarman University, from 8:00 to 16:00. The measurement method used is frequent measurements using the QX-5 electromagnetic field tester on each type of mobile phone, which is already identified. The results showed that the radiation intensity in the three mobile phone brands had radiation intensity values lower than the threshold value of 10 MW / cm 2. From data analysis, it was found that the mobile phone with the highest electromagnetic radiation intensity was the Samsung J2 Prime mobile phone while The smallest phone Vivo Pro 15 Vivo mobile. Mobile phone battery that has the highest value of electromagnetic wave intensity in weak battery power is 25% < DB ≤ 50%, the mobile phone use distance that has the highest electromagnetic radiation intensity is at a distance of 0 cm and 3 cm and a good distance in the use of mobile phone It is 6 cm, 9 cm, 12 cm, the greatest intensity of electromagnetic wave radiation during use or making a phone call whatsapp.
Co-Authors Abbas, Asri Yana Pratama Aditya Rinaldi Aditya Yoga Purnama Adrianus Inu Natalisanto Afif, Sofwan Agung Waluyo Agustina Dwiyanti Ahmad Hipni Ahmad Zarkasi Anang Budianto Andrea Tri Rian Dani Anwar, Yaskinul Ari Handoko Ariyanthi, Gita Putri Arrosyidah, Mosy R arya candra Arya T Candra Asep Rahmatullah Asih Setyo Rini, Asih Setyo Bambang Setyo Panulisan Bayu Septa M.T Budiharjo Budiharjo, Budiharjo Chandri Febri Santi Dadan Hamdani, Dadan Danang Ari Santoso Dani, Andrea Tri Rian Dedy Khaerudin Diah Ekowati, Diah Dian Mukhlisa Dina Hayati Putri Dinanjar Husni Mubarok Djayus Djayus, Djayus Donny Setiawan Edi Irwanto eko heryadi, eko Ernawati, Surni Farsa, Fadhli Fatiha Febrian, Alvin Felicia Joy Rotua Tamba Firdiansyah Firdiansyah Fitri Nauli Siagian fitriani, nur shabrina ulima Galih Farhanto Gandara, Ganjar Sidik Haikal, Muhammad Dava Handoko, Ari Haryono, Arif Hernadewita, Hernadewita Himawan Sadewo, Hengky Ibaad, Muhammad Irsadul Idris Mandang, Idris Imamatul Karimah Iqballulah, Iqballulah Irda Afrahima Irma Nurmala Dewi Irma Nurmala Dewi Jasmine, Yusticia Jumiati, Yana Kadek Subagiada, Kadek Khaerudin, Dedy Khairunnisak Khairunnisak, Khairunnisak Kholis Nurhanafi Kormil Saputra Kosasih, Raditya Arya Lariman, Lariman Lepong, Piter Leuwyh, Aldy Reynaldy Liana Oklas Ranly Liya Arista Lucky Setiawan Maheswari, Carissa Aulia Masrajuddin, Masrajuddin Maulidsandy, Penta Adenata Mawadah, Anis Mawadhah Putri, Fevi Medi Hendra, Medi Meirinda Fauziyah Muawanah, Chusnul Muhammad, Irmawati Munir, Rahmawati Munir, Rahmiati Murti, Sus Tri Mustofa Mustofa Nanang Waludi Nanda Khoirunisa NARITA YURI ADRIANINGSIH Nirmala, Syahda Nurlita, Aulia Oroh, Chiko Zet Partimin, Partimin Permadi, Dika Prasetiyo, An’am Puji Setyaningsih PURNAMASARI, DWI AYU ITA Putra, Fachrian Bimantoro Putri, Devina R, Andrian Rahmat Fajar Rahmatulloh, Asep Rahmiati Rahmiati Rahmita Sari Ramadhan, Tegar Riki Efendi Santi, Chandri Febri Septiardi, Muhammad Evan Setiabudi, Moh. Agung Setyanto, Nova Arief Setyo Rini, Asih Sherin Ramadhania Sitinjak, Jesselin Paskalis Situmorang, Rosnalia Agnes Solvera, Esy Supriyanto Supriyanto Sutaji Putri, Devina Rayzy Perwitasari Syamsuddin Syamsuddin Syukril, Ahmed Upit Hofifah Utami, Alya Nindityas Viktoria, Jetra Wahidah Wahidah Wahyuni, Risma Nur Wahyuningtyas, Ika Panggih Wardani Wardani Wardhani, Pratiwi Sri Wawan Setiawan Wawan Setiawan Yanti, Derli Yanti, Nuri Yopan Rahmad Aldori Yusuf, Mustaid