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All Journal Indonesian Journal of Geography Geo Media: Majalah Ilmiah dan Informasi Kegeografian JURNAL TEKNOLOGI LINGKUNGAN Media Komunikasi Geografi Majalah Geografi Indonesia Jurnal Wilayah dan Lingkungan Jurnal Pendidikan Geografi: Kajian, Teori, dan Praktik dalam Bidang Pendidikan dan Ilmu Geografi Dinamisia: Jurnal Pengabdian Kepada Masyarakat J SIG (Jurnal Sains Informasi Geografi) Jurnal PkM (Pengabdian kepada Masyarakat) Abdimas Mandalika
Sejati, Sadewa Purba
Program Studi Geografi, Fakultas Sains Dan Teknologi, Universitas Amikom Yogyakarta
Religion Agriculture, Biological Sciences & Forestry Arts Humanities Computer Science & IT Earth & Planetary Sciences Education Energy Environmental Science Social Sciences Other

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Peningkatan Literasi Sumber Daya Air Tanah Menggunakan Media Interaktif Berbasis Android Sadewa Purba Sejati; Ifnu Rifki Nurhidayanto
Dinamisia : Jurnal Pengabdian Kepada Masyarakat Vol. 6 No. 6 (2022): Dinamisia: Jurnal Pengabdian Kepada Masyarakat
Publisher : Universitas Lancang Kuning

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31849/dinamisia.v6i6.11118

Abstract

Groundwater is one of the elements of the geosphere that plays an important role in achieving sustainable development. The decrease in the quantity and quality of groundwater is very likely to occur due to intensive anthropogenic dynamics which often ignore environmental rules. The neglect of environmental rules that have the potential to reduce the quantity and quality of groundwater resources is caused by a lack of literacy and knowledge of groundwater science. Literacy of groundwater resources needs to be applied to all levels of society, especially the younger generation as the successor of sustainable development so that groundwater sustainability is maintained. Literacy resources to increase insight need to contain visual elements, animations, descriptions and can be accessed by Android-based smart phones. The realization of solutions to partner problems will be realized through training, discussions, and questions and answers. The training activities were carried out to provide an understanding of how to download, install, and use the Groundwater App with a smartphone. Discussion and question and answer activities were carried out to discuss the visual and interactive substance presented by the application. The activities that have been carried out have been able to increase the insight of the younger generation about groundwater resources.
PENYUSUNAN BASIS DATA ALAMAT SISWA MENGGUNAKAN TEKNOLOGI SISTEM INFORMASI GEOGRAFIS Sadewa Purba Sejati
Jurnal PkM (Pengabdian kepada Masyarakat) Vol 5, No 6 (2022): Jurnal PkM: Pengabdian kepada Masyarakat
Publisher : Universitas Indraprasta PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30998/jurnalpkm.v5i6.8336

Abstract

Teknologi sistem informasi geografis (SIG) merupakan salah satu teknologi yang digunakan secara masif pada periode teknologi 4.0 saat ini. Teknologi yang menghasilkan luaran informasi berbasis lokasi, ruang, dan wilayah tersebut telah banyak digunakan pada berbagai bidang. Potensi SIG sebagai teknologi geospasial belum dimanfaatkan secara optimal di lingkungan sekolah SMA Stella Duce 2 Yogyakarta. Basis data alamat siswa merupakan objek yang dapat digunakan untuk mengoptimalkan pemanfaatan teknologi GIS di sekolah tersebut. Berdasarkan uraian permasalahan maka kegiatan pengabdian kepada masyarakat ini bertujuan untuk menyusun basis data alamat siswa menggunakan teknologi SIG. Data alamat siswa dikumpulkan melalui kuesioner google form. Data yang telah terkumpul kemudian dianalisis menggunakan perangkat lunak Arc GIS Online. Hasil analisis data kemudian dijadikan sebagai masukan dalam perancangan aplikasi peta digital berbasis web. Luaran yang dicapai dalam kegiatan ini adalah aplikasi peta digital persebaran alamat siswa. Aplikasi  yang disusun berdasarkan integrasi antara konsep SIG dengan web tersebut memiliki kelebihan jika dibandingakan dengan basis data siswa yang masih konvensional, yaitu mudah diakses, visualisasi lebih menarik, paperless, dan adaptif terhadap perkembangan teknologi.
Analysis on unconfined groundwater availability during dry and rainy season using dynamic approach in Ngemplak, Sleman, Yogyakarta, Indonesia Sadewa Purba Sejati; Riski Edi Prayoga
Jurnal Pendidikan Geografi: Kajian, Teori, dan Praktek dalam Bidang Pendidikan dan Ilmu Geografi Vol 28, No 1 (2023)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um017v28i12023p38-51

Abstract

Groundwater is a natural resource with disparity across the different regions throughout time. In comparison to surface water, the groundwater in unconfined aquifers is easily accessible and generally of good quality. Groundwater macro zoning is classified into three, namely water catchment areas, transition areas, and groundwater discharge areas. Based on the macro zoning, previous research has mostly been carried out in catchment areas and discharge areas with a focus on groundwater potential and temporary groundwater conditions. The dynamics of groundwater availability, especially in the water transition zone, has not been studied much, even though the dynamics of groundwater availability in the transition zone plays a vital role for areas in the discharge zone. This study identified the availability of groundwater during rainy and dry seasons in groundwater transition zone. Groundwater availability was assessed through a dynamic discharge approach. The study variables included the hydraulic conductivity of the aquifer, the hydraulic gradient, and the cross-sectional area of the aquifer. Dynamic discharges were analysed during the rainy and dry seasons. The results showed that the availability of groundwater during the rainy season was 4,333,906.1 liters/day and 3,898,850.4 liters/day during the dry season. Based on the calculation of the dynamic discharge (Q), the decrease in the quantity of groundwater is affected by the variable hydraulic gradient (I) and cross-sectional area of the aquifer (A). The numbers of these two variables are smaller during the dry season than the rainy season. The decrease in the quantity of groundwater during the dry season is of course closely related to reduced rainfall which is a source of infiltration and percolation. Reduced rainfall causes the groundwater level to decrease, then technically reduces the groundwater hydraulic gradient (I) and aquifer cross-sectional area variable (A). There was no indication of groundwater scarcity in the study area. This study can serve as a reference related to the application of dynamic discharge theory to assess groundwater availability. Periodic monitoring of groundwater quantity, rainwater harvesting, and intensification of water infiltration wells can be carried out as a recommendation to anticipate problems related to groundwater availability in the study area. This study can serve as a reference related to the application of dynamic discharge theory to assess groundwater availability.
Preliminary study of sea water intrusion using geographic information system in Temon, Kulon Progo, Yogyakarta, Indonesia Eva Putriany; Sadewa Purba Sejati
Jurnal Pendidikan Geografi: Kajian, Teori, dan Praktek dalam Bidang Pendidikan dan Ilmu Geografi Vol 28, No 2 (2023)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um017v28i22023p193-208

Abstract

Temon Sub Districts is an administrative area of Kulon Progo Regency, which borders the South Sea (Indian Ocean). The Temon Sub District is directly adjacent to the waters, so it potentially experiences intrusion like other coastal areas in Indonesia. Therefore, groundwater conditions related to the phenomenon of water intrusion need to be identified. The purpose of this study was to estimate seawater intrusion using a geographic information system (GIS) and water quality variables in the Temon Subs Districts. In this study, we used data on electrical conductivity (EC), total dissolved solids (TDS), and groundwater salinity. The sampling was carried out using a systematic random sampling method. Meanwhile, the data analysis was carried out in a qualitative descriptive manner using the spatial interpolation feature in the Arc GIS 10.8 software. Based on the research results, it is suspected that seawater intrusion has occurred in several locations in Temon Sub Districts. The highest suspected seawater intrusion was found in the vicinity of Jangkaran Village, Kalidengen Village, and Plumbon Village. The EC, TDS, and salinity values suggested that around 26% or 9.68 km2 of the area has intruded. This research is expected to enrich references regarding the mapping of seawater intrusion in coastal areas.
Groundwater quality in coastal area: A case study in Parangtritis Village, Bantul, Yogyakarta, Indonesia Septian Putri Antika; Sadewa Purba Sejati; Mohd Hairy Ibrahim
Jurnal Pendidikan Geografi: Kajian, Teori, dan Praktek dalam Bidang Pendidikan dan Ilmu Geografi Vol 29, No 1 (2024)
Publisher : Universitas Negeri Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.17977/um017v29i12024p28-42

Abstract

Groundwater in coastal areas is one of the natural resources that is vulnerable to quality degradation due to population activities in coastal areas. This is also the case in Parangtritis Village, a coastal area with various potential regions for the population's welfare, ranging from tourism to agriculture, animal husbandry, and fisheries. Therefore, this study explores groundwater quality in Parangtritis Village, Kretek District, Bantul Regency, Yogyakarta. Groundwater quality data was collected through field surveys based on land use, with water quality parameters including odor, color, nitrate, nitrite, and E. coli. The Minister of Health Regulation Document Number 32 of 2017 was adopted as a benchmark for groundwater quality in the research area. Further, by using the gathered data, the groundwater quality was classified based on limiting parameters. Groundwater quality is distributed based on limiting parameters such as odor, color, nitrite, and E. coli bacteria. Odor and color limitations are found in agricultural areas, tourism areas, and fish farms. Nitrite limitations are found in residential and livestock areas. E. coli bacteria limitations are found in all land use areas.
The Impact of Land Use Change on Groundwater Depth in The Groundwater Transition Zone of Merapi Volcano, Yogyakarta, Indonesia Sejati, Sadewa Purba; Neritarani, Rivi
Indonesian Journal of Geography Vol 56, No 1 (2024): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.88452

Abstract

Studies of the impact of land use change on groundwater on the southern slopes of Merapi Volcano tend to be carried out on a macro basis. Micro studies, especially in groundwater transition zones,  have not been previously conducted. In-depth studies need to be undertaken in the groundwater transition zone on the southern slope of Merapi Volcano to identify the impact of land use change on the dynamics of groundwater depth in 2012-2021. Data was collected through field surveys and remote sensing. Groundwater depth data were collected through field surveys in 2012 and 2021. Groundwater depth data were measured in dug wells. The location of the excavated well was determined by using the systematic random sampling method. Groundwater depth data were analyzed using the kriging spatial interpolation method. The results of groundwater depth interpolation in 2012 and 2021 were then compared to determine the changes. Rainfall data were also used in the study. Rainfall data were collected using remote sensing data through cloud computing. Literature studies related to the condition of monitoring wells were also used to determine groundwater dynamics based on rainfall conditions. Data on land use change for 2012-2021 were collected using remote sensing data. Land use change was analyzed using pansharpening, supervised classification, and overlay methods. Cross-tabulation analysis was performed to determine the impact of land use change on groundwater depth. The groundwater depths in the study area were classified into <6 m, 6-11 m, and >11 m. Changes in land use from irrigated rice fields to settlements and open land to scrub occurred predominantly in the study area. Changes in land use did not have a significant impact on changes in groundwater depth in the study area. Based on cross-tabulation analysis, it is known that 11.46% of the study area experienced groundwater deepening, 7.73% experienced groundwater siltation, and 80.81% experienced no change in groundwater depth in the period of 2012-2021. Groundwater deepening generally occurs in areas dominated by scrub and settlements far from river channels. Groundwater that grows shallower and does not change in depth occurs around irrigated rice fields close to river channels. Land use change that does not significantly impact groundwater depth is likely to occur because rainfall in the study area is high. The aquifer material in the study area also had an excellent ability to drain groundwater coming from the upper slopes of Merapi Volcano.
Study of the Impact of Rainfall Pattern Dynamics on Carbon Monoxide and Nitrogen Dioxide Using Cloud Computing (Case Study in the Special Region of Yogyakarta, Indonesia) Sejati, Sadewa Purba; Neritarani, Rivi
Indonesian Journal of Geography Vol 57, No 2 (2025): Indonesian Journal of Geography
Publisher : Faculty of Geography, Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijg.99395

Abstract

Carbon monoxide (CO) and nitrogen dioxide (NO2) are the primary pollutants found in the air. Based on the results of the study of predecessor researchers, it is known that human activity factors cause spatial and temporal changes in primary pollutants in the air, while natural factors, such as rainfall changes during the transition of seasons, have not been studied further. This study was conducted to examine the impact of rainfall changes on spatial patterns of primary pollutants (CO and NO2). The Special Region of Yogyakarta (DIY), Indonesia was chosen as a research area. The data used were remote sensing data, namely CHRIPS (Climate Hazards Group InfraRed Precipitation with Station data, NRTI (Near Real Time) / L3_CO data, and NRTI / L3_NO2 data. The data were analyzed using cloud computing methods based on Google Earth Engine and statistical analysis. The results showed that the dynamics of rainfall patterns had an impact on changes in CO and NO2 concentrations although it was not significant. Based on the study, it is known that an increase in rainfall of 1% causes a decrease in CO concentration of 1.935 x 10-5 mol/m2 and a decrease in NO2 concentration of 3.151 x 10-9 mol/m2.  A study conducted in southern India also concluded that higher rainfall has the potential to reduce CO and NO2 concentrations. The impact of rainfall pattern dynamics presented quantitatively in this study is a new finding, because there have not been many studies that explain the impact of rainfall pattern dynamics on CO and NO2 quantitatively.Received: 2024-08-24 Revised: 2025-01-02 Accepted: 2025-02-16 Published: 2025-05-26
Pemanfaatan Google Earth 3D Untuk Meningkatkan Pemahaman Siswa Terhadap Karakteristik Alami Wilayah Dalam Pembelajaran Geografi Sejati, Sadewa Purba; Permatasari, Afrinia Lisditya
Abdimas Mandalika Vol 4, No 3 (2025): Mei
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/am.v4i3.30185

Abstract

Abstract:  Learning should be carried out using engaging learning media. Student boredom can be anticipated using interactive learning media. Interactive learning media allows students to listen to lectures, read writings, and view visualisations of photos or static maps. Still, students can also interact using their motor systems to explore the material presented. This activity aims to introduce Google Earth 3D as an interactive learning medium in Geography class XI at SMA N 1 Temanggung, Central Java. The method of implementing the activity is socialisation, which is related to using Google Earth 3D to interactively learn the area's natural characteristics. The steps to implement activities include the pre-activity stage, the implementation of activities, and evaluation. Based on the results that have been achieved, it is known that Google Earth 3D can improve students' understanding.  Google Earth 3D can be used intensively as a learning medium for the natural characteristics of the region. Learning materials can be developed according to the curriculum pattern used. Abstrak: Pembelajaran hendaknya dilakukan menggunakan media pembelajaran yang menarik. Rasa bosan siswa dapat diantisipasi menggunakan media pembelajaran yang bersifat interaktif. Media pembelajaran yang interaktif memungkinkan siswa tidak hanya mendengarkan ceramah, membaca tulisan, dan melihat visualisasi foto atau peta statis, tetapi para siswa juga dapat berinteraksi menggunakan sistem motoriknya untuk mengeksplorasi materi yang disampaikan. Kegiatan ini bertujuan untuk mengenalkan  Google Earth 3D sebagai media pembelajaran interaktif dalam mata pelajaran Geografi kelas XI di SMA N 1 Temanggung Jawa Tengah. Metode pelaksanaaan kegiatan adalah sosialisasi terkait pemanfaatan Google Earth 3D untuk mempelajari karakteristik alami wilayah secara interaktif. Langkah-langkah pelaksanaan kegiatan meliputi tahap pra kegiatan, pelaksanaan kegiatan, dan evaluasi. Berdasarkan hasil yang telah dicapai, diketahui bahwa Google Earth 3D dapat meningkatkan pemahaman siswa.  Google Earth 3D dapat digunakan secara intensif sebagai media pembelajaran karakteristik alami wilayah. Materi pembelajaran dapat dikembangkan beragam sesuai dengan pola kurikulum yang digunakan.
Pemanfaatan Sistem Infromasi Geografis Berbasis Internet Sebagai Media Pembelajaran Jarak Jauh Sejati, Sadewa Purba; Sekarsih, Fitria Nuraini; Nucifera, Fitria; Permatasari, Afrinia Lidistya
Abdimas Mandalika Vol 5, No 1 (2025): November
Publisher : Universitas Muhammadiyah Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31764/am.v5i1.34529

Abstract

Abstract:  Implementing distance learning as a new form of habit during the COVID-19 pandemic has raised several problems. The transition from conventional learning methods to distance learning has quickly resulted in learning media not being fully prepared. This problem can result in a lack of understanding of the subject matter of the learning material among students. The dynamics of learning issues during the pandemic allow the author to introduce internet-based GIS as a distance learning medium for students majoring in forestry at SMK Widya Nusantara Maros. The activity aims to introduce the geographic information system (internet-based GIS) as a learning medium for vocational high school students.  The method of the activity is training. The activity is divided into three stages, namely the preparation stage, the implementation stage, and the evaluation stage. ArcGIS Online was chosen as a distance learning medium. The activity results show that internet-based GIS can be used as an alternative to achieve learning outcomes in distance learning.Abstrak: Penerapan pembelajaran jarak jauh sebagai bentuk kebiasaan baru saat pandemi Covid-19 menimbulkan beberapa persoalan. Transisi metode pembelajaran konvensional menjadi pembelajaran jarak jauh dalam waktu singkat mengakibatkan media pembelajaran belum sepenuhnya disiapkan dengan baik. Persoalan ini berpotensi mengakibatkan kurangnya pemahaman siswa terhadap pokok materi pembelajaran. Dinamika persoalan pembelajaran saat pandemi memberikan ruang bagi penulis untuk mengenalkan SIG berbasis internet sebagai media pembelajaran jarak jauh siswa jurusan kehutanan di SMK Widya Nusantara Maros. Tujuan kegiatan adalah mengenalkan sistem informasi geografis (SIG berbasis internet sebagai media pembelajaran bagi siswa-siswi sekolah menengah kejuruan.  Metode kegiatan adalah pelatihan. Kegiatan dibagi menjadi tiga tahap, yaitu tahap persiapan, tahap pelaksanaan, dan tahap evaluasi. Arc GIS online dipilih sebagai media pembelajaran jarak jauh. Hasil kegiatan menunjukkan bahwa SIG berbasis internet mampu digunakan sebagai alternatif untuk mencapai capaian pembelajaran dalam pembelajaran jarak jauh.
Geovisualisasi Kondisi Air Tanah pada Akuifer Tidak Tertekan di Kecamatan Ngemplak Kabupaten Sleman Sejati, Sadewa Purba; Panji, Panji
Jurnal Wilayah dan Lingkungan Vol 12, No 1 (2024): April 2024
Publisher : Department of Urban and Regional Planning, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jwl.12.1.1-16

Abstract

Penelitian ini bertujuan untuk mengidentifikasi kondisi air tanah, mengetahui kemampuan sistem informasi geografis (SIG) berbasis web sebagai media geovisualisasi kondisi air tanah, dan merumuskan strategi manajemen lingkungan air tanah. Kondisi air tanah diidentifikasi menggunakan data kedalaman air tanah, daya hantar listrik (DHL), suhu, warna, bau, dan rasa air tanah. Data dikumpulkan dengan metode survei lapangan. Sampel ditentukan menggunakan metode systematic random sampling. Data dianalisis menggunakan perangkat lunak ArcGIS 10.6 dengan metode interpolasi spasial untuk menghasilkan informasi tematik. Informasi tematik digunakan untuk menyusun geovisualisasi berbasis web menggunakan ArcGIS Online Web App Builder. Strategi manajemen lingkungan air tanah dirumuskan menggunakan matriks SWOT berdasarkan geovisualisasi kondisi air tanah. Hasil penelitian menunjukkan bahwa air tanah di daerah penelitian didominasi oleh kedalaman kurang dari 3,5 meter. Nilai DHL berada pada rentang 143-520 microsiemens/cm, suhu air tanah berada pada rentang 25-28,50celcius. Kualitas air tanah secara umum masih baik dengan kondisi air yang tidak berbau, tidak berasa, dan tidak berwarna. Geovisualisasi berbasis web dapat dioperasikan pada berbagai macam perangkat elektronik. Tipe prosesor dan kapasistas memori sangat mempengaruhi aksesibiltas perangkat eletronik terhadap program tersebut. Semakin besar kapasitas ram dan semakin terkini prosesor yang digunakan maka waktu yang dibutuhkan untuk mengakses program semakin cepat. Geovisualisasi berbasis web memiliki kelebihan, yaitu tampilan lebih menarik, paperless, dan integrasi dengan berbagai macam data kewilayahan mudah dilakukan. Strategi manajemen lingkungan air tanah di daerah penelitian terdiri dari tiga bagian, yaitu strategi aksesibilitas terhadap air tanah, strategi untuk menjaga kuantitas air tanah, dan strategi untuk menjaga kualitas air tanah.
Co-Authors Aditya Saputra Afrinia Lisditya Permatasari Permatasari Dimas Adi Pratama Eva Putriany Falah, Fajrul Ifnu Rifki Nurhidayanto Mohd Hairy Ibrahim Novianto, Arif Nucifera, Fitria Panji Panji Permatasari, Afrinia Lidistya Permatasari, Afrinia Lisditya Riski Edi Prayoga Rivi Neritarani Rivi Neritarani Sekarsih, Fitria Nuraini Septian Putri Antika Setiawan, Wahyu Dwi Yoga Suharman