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IDENTIFIKASI MORFOMETRI DAS SERANG DARI CITRA SRTM Adi Prabowo
KURVATEK Vol 7 No 1 (2022): Energy Management and Sustainable Environment
Publisher : Institut Teknologi Nasional Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33579/krvtk.v7i1.2762

Abstract

Lokasi penelitian merupakan DAS Serang yang masuk dalam wilayah Kabupaten Kulon Progo, Daerah Istimewa Yogyakarta. Penelitian ini bertujuan untuk mengetahui aspek morfometri DAS Serang dengan cara menghitung luas, Panjang, keliling, orde dan percabangan sungai, kerapatan sungai, serta pola pengaliran berdasarkan kenampakan yang terekam pada citra SRTM. Penelitian ini dilakukan dengan metode utama berupa interpretasi citra penginderaan jauh SRTM dan menghitung morfometri DAS dengan menggunakan software ArcGIS. Hasil perhitungan didapatkan luas DAS Serang 305,404 km2, panjang sungai 27,25 km, keliling DAS 107,353 km, tingkat percabangan sungai 2,45, kerapatan alur sungai 0,089. Berdasarkan hasil tersebut di atas maka DAS Serang dikontrol oleh tektonik dengan porositas batuan yang bagus sehingga tingkat infiltrasi tinggi.
Hydrogeology Potential of Hargorejo Area Kokap Subdistrict West Progo Regency T. Listyani R.A.; Dianto Isnawan; Ign. Adi Prabowo
Angkasa: Jurnal Ilmiah Bidang Teknologi Vol 12, No 2 (2020): November
Publisher : Institut Teknologi Dirgantara Adisutjipto

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1218.302 KB) | DOI: 10.28989/angkasa.v12i2.772

Abstract

This research is a hydrogeological survey activity with the aim to determine the geological characteristics of groundwater in the Hargorejo area, Kokap Sub-district, West Progo. The study wants to know about the pattern of groundwater flow and water quality in the area. The northern part of the research area is included in the non-groundwater basin region of the West Progo Dome, while the southern part is included in Wates Groundwater Basin. Method of research is a field hydrogeological survey, to obtain geological and groundwater data. Groundwater flow pattern and quality analyses are based on groundwater data and pH, TDS and EC values. Groundwater can be obtained from springs or dug wells, with relatively shallow groundwater tables. The pattern of groundwater flow is generally to the south, with the H4 / H5 basin boundary type. Groundwater quality is quite good, with a pH value of 6.2 -7; TDS 191 - 558 ppm, and EC ranges from 279-783 µS / cm.
Pemanfaatan Citra Landsat 8 Dan Data Dem Untuk Mengetahui Tingkat Kerentanan Dan Mitigasi Banjir Rob Di Daerah Pekalongan, Jawa Tengah reza krisnandi; Adi Prabowo
Retii 2021: Prosiding Seminar Nasional ReTII ke-16
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

The northern coastal area of Pekalongan is an area that is often affected by tidal flooding or better known as tidal flooding. Geomorphologically, the Pekalongan region is located on the north coast of Java Island which has an alluvial plain and a flood plain. This study aims to zoning the distribution of tidal flooding based on the weighted value of the parameters on the north coast of Pekalongan, and to provide directions for tidal flood mitigation. The map processing process is supported by Landsat 8 imagery and DEM data. The research method used is in the form of scoring, weighting and overlay methods. The results of the study are flood vulnerability, high vulnerability is located in North Pekalongan Regency with a difference in height <5m (low) and a slope of 2-7% (ramps), vulnerability is located in Siwalan Regency with a difference in height of 5-50 m (moderate), and slopes. a slope of 2-7% (sloping), while low vulnerability is located in Tirto District with a difference of> 50 m (height), and 8-13% (slope). The tidal flood mitigation stage consists of 2 stages, namely structural mitigation and non-structural mitigation Keywords: Landsat 8 & DEM, vulnerability, mitigation, Pekalongan, zoning.
Identifikasi Fluktuasi Muka Air Laut dengan menggunakan Pendekatan Penginderaan Jauh Daerah Tegal, Jawa Tengah pascuela manikin; Adi Prabowo
Retii 2021: Prosiding Seminar Nasional ReTII ke-16
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

ABSTRAK Daerah Tegal merupakan salah satu daerah pesisir yang berbatasan langsung dengan pantai Utara Jawa sehingga dapat mengalami perubahan garis pantai yang di sebabkan oleh fluktuasi muka air laut. Studi terkait fluktuasi muka air laut berkaitan erat dengan pasang surut dan perubahan garis pantai. Untuk melihat suatu perubahan garis pantai di perlukan metode yang tepat salah satunya dengan menggunakan Metode Penginderaan Jauh, selain itu juga di perlukan metode perhitungan berupa Metode Admiratly untuk menentukan nilai rata – rata serta tipe dari pasang surut. Dari hasil perhitungan di peroleh Nilai MSL tahunan di Stasiun Pengamatan Pasang Surut Kota Cirebon, Jawa Barat pada tahun 2014-2017 berturut-turut yaitu sebesar 67.85 cm, 73.75 cm, 81.42 cm, 85.50 cm dan untuk nilai Laju kenaikan muka air laut rata - rata adalah 5,97 cm per tahun dengan tipe pasang campuran condong ke ganda (mixed tide prevailing semidiurnal), berdasarkan pengamatan penginderaah jauh terlihat perubahan garis pantai sepanjang tahun 2014 -2017 akibat dari fluktuasi muka air laut yang ada. Kata Kunci : fluktuasi, pasang surut, perubahan garis pantai.
IDENTIFIKASI BENCANA TANAH LONGSOR BERDASARKAN PENGAMATAN GEOMORFOLOGI DI DESA GIRIPURWO, KECAMATAN GIRIMULYO, KABUPATEN KULONPROGO, DIY Ludgardis Tara; Adi Prabowo
Retii 2021: Prosiding Seminar Nasional ReTII ke-16
Publisher : Institut Teknologi Nasional Yogyakarta

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Abstract

The research area is located in Giripurwo Village, Girimulyo District, Kulonprogo Regency, DIY. Landslide potential is taken from four parameters such as slope, lithology, land use, and river density from the research area. These four parameters are then associated with the geomorphology and the intensity of landslides that occur in the study area. Landslide potential maps were made using the AHP (Analytical Hierarchy Process) method and ArcMap 10.8 software. The landslide potential level is divided into three, namely low landslide potential, medium landslide potential, and high landslide potential. From the results of the four-parameter overlay, it is known that Giripurwo has moderate potential for landslides in areas with dense-slightly sparse contour patterns having a height of >125 meters, lithology in the form of andesite and andesite breccias, land use is dominated by gardens and fields, and low river density. -medium. Low landslide potential is generally located in the southeastern part of Giripurwo with a loose contour pattern, >125 meters altitude, lithology in the form of sandstone, land use is dominated by rice fields and rainfed rice fields, medium to high river density. Mitigation can be done by making terraces and landslide retaining walls.