Article Per Year (5 Year)
p-Index From 2021 - 2026
2.636
P-Index
This Author published in this journals
All Journal Indonesian Journal of Geography Geo Media: Majalah Ilmiah dan Informasi Kegeografian Seminar Nasional Aplikasi Teknologi Informasi (SNATI) Tunas Geografi Jurnal Geografi : Media Informasi Pengembangan dan Profesi Kegeografian Pendidikan Geografi Majalah Geografi Indonesia Indonesian Journal of Forestry Research Jurnal RISET Geologi dan Pertambangan Journal of Degraded and Mining Lands Management Seminar Nasional Informatika (SEMNASIF) Forum Geografi MAJALAH ILMIAH GLOBE Sumatra Journal of Disaster, Geography and Geography Education Jurnal Matematika Sains dan Teknologi Jurnal Geografi Jurnal Geografi, Edukasi dan Lingkungan Jurnal Penelitian Pengelolaan Daerah Aliran Sungai Social, Humanities, and Educational Studies (SHEs): Conference Series JITEL (Jurnal Ilmiah Telekomunikasi, Elektronika, dan Listrik Tenaga) Jurnal Teknik Sipil Indonesian Journal of Forestry Research
Ahmad Cahyadi **)
Departemen Geografi Lingkungan, Fakultas Geografi, Universitas Gadjah Mada
Agriculture, Biological Sciences & Forestry Astronomy Biochemistry, Genetics & Molecular Biology Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Languange, Linguistic, Communication & Media Mathematics Social Sciences Transportation Other

Published : 49 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 6 Documents
Search
Journal : forum geografi

 1 
Typology, Dynamics, and Potential Disaster in The Coastal Area District Karst Gunungkidul Marfai, Muh Aris; Cahyadi, Ahmad; Anggraini, Dini Feti
Forum Geografi Vol 27, No 2 (2013): December 2013
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

This study aims to determine the typology, dynamics and potential disasters  in the coastal area of Gunungkidul, Yogyakarta Special Province. The results showed that the typology formed in the coastal region is structurally shaped karst Gunungkidul coast, Wave Erotion Coast, marine deposition coast, coast erosion land, coast and sub-aerial deposition of man-made coastal typology. Coastal dynamics that occur in karst  Gunungkidul coastal areas affected by dominant geodinamic processes, hydrodynamic and antropodinamic. There are several potential disaster in the karst Gunungkidul coastal region, namely tsunami, rip currents, abrasion, and waves reflection.
Effect of the Meteorological Conditions to Spring Water Availability in Some Karst Region at Gunungkidul Districts (Meteorologist Water Balance Analysis Study for Drought Mitigation) Darmanto, Darmakusuma; Cahyadi, Ahmad
Forum Geografi Vol 27, No 1 (2013): July 2013
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v27i1.5085

Abstract

The objective of this study is to understand the influence of meteorological conditions of logva water availability in karst area, Gunungkidul Regency. Meteorological condition analysis was determined by creating meteorological water balance using Thornthwaite Mather method. Water availability condition was determined by using multi-temporal images. Then, the result of water balance was matched with the logva water availability derived from multi-temporal images. The result shows that meteorological conditions will influence logva water availability in karst area, Gunungkidul Regency. It was shown by comparing the amount of logva in surplus months and deficit months. The amount of logva in surplus months is more than in deficit months. In addition, the longer meteorological water deficit, the amounts of detected logva decreases. Based on that condition, it means that meteorological water balance analysis can be used to plan disaster mitigation based on the time and duration of deficit months.
Typology, Dynamics, and Potential Disaster in The Coastal Area District Karst Gunungkidul Marfai, Muh Aris; Cahyadi, Ahmad; Anggraini, Dini Feti
Forum Geografi Vol 27, No 2 (2013): December 2013
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v27i2.2373

Abstract

This study aims to determine the typology, dynamics and potential disasters  in the coastal area of Gunungkidul, Yogyakarta Special Province. The results showed that the typology formed in the coastal region is structurally shaped karst Gunungkidul coast, Wave Erotion Coast, marine deposition coast, coast erosion land, coast and sub-aerial deposition of man-made coastal typology. Coastal dynamics that occur in karst  Gunungkidul coastal areas affected by dominant geodinamic processes, hydrodynamic and antropodinamic. There are several potential disaster in the karst Gunungkidul coastal region, namely tsunami, rip currents, abrasion, and waves reflection.
GROUNDWATER VULNERABILITY TO POLLUTION IN KASIHAN DISTRICT, BANTUL REGENCY, INDONESIA Purnama, Setyawan; Cahyadi, Ahmad
Forum Geografi Vol 33, No 2 (2019): December 2019
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v33i2.7672

Abstract

The groundwater vulnerability to pollution refers to the ease of pollutants reaching groundwater, so the groundwater will be polluted. The concept shows a probability that pollution will occured which basically bases on the assumption that the physical environment can prevent the flow of pollutants into the aquifer. The purpose of this study was to predict the vulnerability of groundwater in the study area against pollution. To achieve these objectives beside base on secondary data, also measured the depth of phreatic surface, slope and groundwater sampling. Location of measurement and sampling is determinated by considering location of infiltration measurement ever done by Purnama in 2017. To conduct groundwater vulnerability analysis on pollution in the study area, carried out by SINTACS Method which bases on a numerical system of weight and rating. Weight are determined based on the significance of the effect of the parameters on groundwater pollution, while the rating is determined based on the significance of the influence of variables in each parameters against groundwater pollution. As a result, it is known that groundwater vulnerability indeks in research area range from 117,0 to 189,9. According to criteria of SINTACS, the value are classified as moderate vulnerability and rather high vulnerability. Areas that include moderate levels of vulnerability generally located in Sentolo Formations that consist of limestone and has grumusol soil type. Areas that classified as rather high vulnerability is located in Yogyakarta Formation that consist of volcanic rock and has regosol soil type. Based on this phenomena, it can be said that geological aspect and type of soil greatly affect the vulnerability of groundwater to pollution in the research area.
Groundwater Vulnerability to Pollution in Kasihan District, Bantul Regency, Indonesia Setyawan Purnama; Ahmad Cahyadi
Forum Geografi Vol 33, No 2 (2019): December 2019
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v33i2.7672

Abstract

The groundwater vulnerability to pollution refers to the ease of pollutants reaching groundwater, so the groundwater will be polluted. The concept shows a probability that pollution will occured which basically bases on the assumption that the physical environment can prevent the flow of pollutants into the aquifer. The purpose of this study was to predict the vulnerability of groundwater in the study area against pollution. To achieve these objectives beside base on secondary data, also measured the depth of phreatic surface, slope and groundwater sampling. Location of measurement and sampling is determinated by considering location of infiltration measurement ever done by Purnama in 2017. To conduct groundwater vulnerability analysis on pollution in the study area, carried out by SINTACS Method which bases on a numerical system of weight and rating. Weight are determined based on the significance of the effect of the parameters on groundwater pollution, while the rating is determined based on the significance of the influence of variables in each parameters against groundwater pollution. As a result, it is known that groundwater vulnerability indeks in research area range from 117,0 to 189,9. According to criteria of SINTACS, the value are classified as moderate vulnerability and rather high vulnerability. Areas that include moderate levels of vulnerability generally located in Sentolo Formations that consist of limestone and has grumusol soil type. Areas that classified as rather high vulnerability is located in Yogyakarta Formation that consist of volcanic rock and has regosol soil type. Based on this phenomena, it can be said that geological aspect and type of soil greatly affect the vulnerability of groundwater to pollution in the research area.
Effect of the Meteorological Conditions to Spring Water Availability in Some Karst Region at Gunungkidul Districts (Meteorologist Water Balance Analysis Study for Drought Mitigation) Darmakusuma Darmanto; Ahmad Cahyadi
Forum Geografi Vol 27, No 1 (2013): July 2013
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v27i1.5085

Abstract

The objective of this study is to understand the influence of meteorological conditions of logva water availability in karst area, Gunungkidul Regency. Meteorological condition analysis was determined by creating meteorological water balance using Thornthwaite Mather method. Water availability condition was determined by using multi-temporal images. Then, the result of water balance was matched with the logva water availability derived from multi-temporal images. The result shows that meteorological conditions will influence logva water availability in karst area, Gunungkidul Regency. It was shown by comparing the amount of logva in surplus months and deficit months. The amount of logva in surplus months is more than in deficit months. In addition, the longer meteorological water deficit, the amounts of detected logva decreases. Based on that condition, it means that meteorological water balance analysis can be used to plan disaster mitigation based on the time and duration of deficit months.
Co-Authors Abdul Karim Ade Yuniati Pratiwi Afid Nurkholis Agus Riyanto, Indra Aji Dwi Pratama Andung Bayu Sekaranom Anindya Arma Risanti Ardila Yananto Aries Dwi Siswanto Awanda Sistia Risky Azura Ulfa Danang Sri Hadmoko Darmakusuma Darmanto Darmakusuma Darmanto Darmakusuma Darmanto Dicky Satria Dini Feti Anggraini Diwijaya, Sonna Dwi Laksono, Angga Dwi Putra, Rakhmat Dwi Septiyanto, Dwi Dwi Sismoyo Dzakwan Taufiq Nur Muhammad Eko Haryono Eko Haryono Eko Haryono Eko Haryono Emilya Nurjani Erick Febriarta Erik Febriarta Erik Febriarta Fajar Sugiarto Fajri Ramadhan Fajri Ramadhan Fattah Tastian, Naufal Febriarta, Erick Febriarta, Erik Fedhi Astuty Hartoyo Gemasakti Adzan Ghalih Nur Wicaksono Gifari Shadad Ramadhan Hakim, Arief Abdurrahman Hamzah Fathoni Hari Prihatno Hari Prihatno Hendi Fatchurrohman Hendy Fatchurohman Hendy Fatchurohman Henky Nugraha Henky Nugraha, Henky Hilary Reinhart Husna Diah Igor Yoga Bahtiar Ikhwan Arbi Kurniawan Indra Agus Riyanto Indra Agus Riyanto Indra Agus Riyanto Indra Agus Riyanto Kurniawan Andre Cahyono Labib, M. Ainul Latifah Latifah Lely Andriani Nasution Lili Ismangil M Widyastuti M Widyastuti M. Widyastuti Marfai, Muh Aris Margaretha Widyastuti Melati Ayuning Putri Muchammad Amin Nurrohman Muh Aris Marfai Muh. Aris Marfai Muhammad Naufal Muhammad Naufal Muhammad Naufal, Muhammad Muhammad Sufwandika Wijaya MULYONO, NANANG Naufal Fattah Tastian Naufal Fattah Tastian Novita Rahmawati Nugroho Adji, Tjahyo Nursiah Chairunnisa Nurul Khakhim Nurul Khakhim Nurwidayati, Ratni Prakoso, Puguh Budi Pramono Hadi, Mohammad Putra, Rakhmat Dwi Rakhmat Dwi Putra Ramadhan, Fajri Raras Endarto Rasyiida Acitya Ratna Destra Kurniasari Ratri Abdatush Sholihah Risma Sari Septianingrum Riyanto, Indra Agus Rizki, Raden Ludhang Pradipta Roesdi Fitra Ariefin Romza Fauzan Agniy Romza Fauzan Agniy Romza Fauzan Agniy Safira Prameswari Satrio, Fahry Adhi Sembodo Noviandaru Setyawan Purnama Setyawan Purnama Setyawan Purnama Setyawan Purnama Setyawan Purnama Setyawan Purnama1 Sigit Heru Murti Slamet Suprayogi Sudarmadji Sudarmadji Sudrajat sudrajat Susianti, Noor Alia Taufiq Nur Muhammad, Dzakwan Tivianton, Tommy Ardian Tjahyo Nugroho Adji Tjahyo Nugroho Adji Tjahyo Nugroho Adji Tjahyo Nugroho Adji Tjahyo Nugroho Adji Tjahyo Nugroho Adji Tommy Ardian Tivianton Victor Kusuma Ramadan Vienastra, Septian Wahyu Hidayat Wahyu Ristiawan, Angga Wilda Aulia Fathoni Wisnu Agung Waskita Wisnu Agung Waskito Wisnu Agung Waskito