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ANALISIS DINAMIKA TINGKAT KEKERUHAN DAN KEDALAMAN RELATIF PERAIRAN DI WADUK SUTAMI KABUPATEN MALANG Alfi Nur Rusydi; Ferryati Masitoh
JFMR (Journal of Fisheries and Marine Research) Vol 5, No 2 (2021): JFMR VOL 5 NO.2
Publisher : JFMR (Journal of Fisheries and Marine Research)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2021.005.02.16

Penurunan fungsi waduk Sutami yang berupa sedimentasi intensif dalam kurun waktu 2013-2019 perlu dilakukan upaya identifikasi dan monitoring. Upaya ini dilakukan dengan memanfaatkan teknologi penginderaan jauh yang bertujuan untuk menganalisis dinamika sedimentasi perairan berdasarkan kedalaman relatif air dan tingkat kekeruhan air di waduk Sutami pada musim kemarau tahun 2013-2019. Citra satelit Landsat 8 OLI diolah untuk mendapat nilai Relative Water Depth (RWD) dan Normalized Difference Turbidity Index (NDTI). Hasil penelitian menunjukkan bahwa pada tahun 2013 hingga tahun 2019, kenampakan air keruh cenderung teridentifikasi di bagian timur waduk yang juga merupakan inlet waduk Sutami. Analisis kedalaman relatif air dilakukan untuk mengetahui dampak sedimentasi terhadap perubahan kedalaman perairan. Tingkat kekeruhan dan kedalaman relatif perairan tidak berhubungan langsung yang kuat secara statistik. Semakin keruh suatu perairan, maka belum tentu kedalaman relatif pada perairan tersebut menjadi semakin dangkal. Proses sedimentasi perairan di waduk Sutami yang terjadi pada tahun 2013-2019 menunjukkan bahwa proses tersebut dipengaruhi oleh tingkat kekeruhan.

Kajian hidrogeomorfologi pada DAS orde 0 (nol) di Dusun Brau Kota Batu Ferryati Masitoh; Alfi Nur Rusydi; Ilham Diki Pratama
Jurnal Pendidikan Geografi: Kajian, Teori, dan Praktek dalam Bidang Pendidikan dan Ilmu Geografi Vol 24, No 2 (2019)
Publisher : Universitas Negeri Malang

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This study aims to obtain an overview of hydrogeomorphological conditions in Zero Order Basin in Brau Village. Quantitative approaches are used by using primary and secondary data sources. Primary data includes: geomorphological, geological, and hydrological conditions. Secondary data used is Topographic Map data. The result of the study was in the form of a hydrogeomorphology of Zero Order Basin in Brau Village. Steep topography causes landslides, and water flows down gravitatively along the slope. The process of sedimentation occurs in a narrow depression zone located around seepage and springs. Tuffs and breccias (with cracks) cause high both porosity and permeability. Surface flow is not visible, but the baseflow occurs over the year. The baseflow that comes out as seepage and spring, is located in the bending area of the slope which has a narrow depression zone. The springs belt is formed at an elevation of 1,120-1,140 masl. The main function of Zero Order Basin in Brau Village is to accumulate water to form a complex river network system.Penelitian ini bertujuan untuk mendapatkan gambaran kondisi hidrogeomorfologi pada DAS Orde 0 (Nol) di Dusun Brau. Pendekatan kuantitatif digunakan dengan sumber data primer dan sekunder. Data primer mencakup: kondisi geomorfologi, geologi, dan hidrologi. Data sekunder yang digunakan adalah data Peta Topografi. Hasil kajian berupa deskripsi hidrogeomorfologi DAS Orde 0 (Nol) di Dusun Brau. Topografi curam mengakibatkan terjadinya longsor dan air mengalir secara gravitatif menuruni lereng. Proses sedimentasi terjadi pada zona depresi sempit di sekitar rembesan dan mata air. Tuff dan breksi (dengan retakan) menyebabkan tingginya porositas dan permeabilitas. Aliran permukaan tidak nampak, tetapi aliran dasar terjadi sepanjang tahun. Aliran dasar yang keluar sebagai rembesan dan mata air, berada pada daerah tekuk lereng yang memiliki zona depresi yang sempit. Sabuk mata air terbentuk pada elevasi 1.120–1.140 mdpl. Fungsi utama DAS Orde 0 (Nol) di Dusun Brau yaitu untuk mengakumulasikan air sebelum terbentuknya sistem jaringan sungai yang lebih kompleks.DOI: http://dx.doi.org/10.17977/um017v24i22019p073

Pendekatan Hidrogeomorfologi Dan Pendugaan Geolistrik Untuk Identifikasi Potensi Airtanah Di Jedong Malang Ferryati Masitoh; Alfi Nur Rusydi; Ilham Diki Pratama
Jambura Geoscience Review Vol 3, No 2 (2021): Jambura Geoscience Review (JGEOSREV)
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jgeosrev.v3i2.10252

This study aims to identify the potential groundwater in Jedong, Malang, East Java. The hydrogeomorphological approach is a suitable approach to describe the relationship between hydrological and geomorphological processes on and below the earth's surface. The survey of geoelectricity complements the hydrogeomorphological approach. It will give a better description of the groundwater conditions below the earth's surface. Based on the research, there are 2 hydrogeomorphological units in the study area, which are: Volcanic Foot Valley Unit and Volcanic Foot Ridge Unit. The best groundwater potential is in Volcanic Foot Valley Hydrogeomorphological unit, namely Awar-awar Valley and Cokro Valley. The valleys are dominated by gully erosion and landslides. They have surface deposits up to a depth of 7 meters, and lots of outcrops of breccia, pumice, and andesite boulders. The valley’s springs discharge between 56 - 198 m3/day. The average infiltration rate in the valley is 1776 mm / hour, with sandy soil material. The best aquifer consisting of sandy material is more than 10 meters in depth, based on the geoelectrical survey. Water in the aquiclude layer, cannot be exploited because it is breccia and tuff material. The Sawah valley cannot be exploited further because the groundwater potential is very low. This can be identified by the thick water outflow seepage. In the Volcanic Foot Ridge Hydrogeomorphological unit, the groundwater potential is also very small. Hydrogeomorphically, water will flow down the slope to the valley. It will reduce the infiltration rate. In general, the ridge area is only used for settlement, while the slopes are used for dryland agriculture. The geoelectric analysis results show that the groundwater potential is at a depth of more than 45 meters. This research’s results show that the combination of the hydrogeomorphological approach and the geoelectric use will provide a better description of the potential groundwater.

Analisis Potensi dan Perencanaan Pembangunan Di Desa Punjul Kabupaten Tulungagung Binti Muti’atul Atifah; Abdillah Hanafi; Andhika Ananda Wijaya; Luqman Nurhuda; Radite Wanudya Apsari; Ferryati Masitoh
LaGeografia Vol 20, No 2 (2022): Februari
Publisher : UNIVERSITAS NEGERI MAKASSAR

One of the goals of the national development process is the creation of economic growth and equitable development in each region. The problem in the development of a country is inequality between regions. This article aims to provide direction regarding development planning in Punjul Karangrejo Village, Tulungagung, studied from a social, physical, and tourism perspective. This research is a subjective exploratory research with an expressive methodology. This research uses primary data and secondary data. The primary data collection technique was carried out by field observation, while the secondary data used a literature review which was processed systematically and objectively by analyzing and designing a development plan that was seen from the physical, social, and tourism potential aspects with its own development plan based on regional character. The results showed that there was tourism potential in Punjul Village, followed by technological developments in the form of a village website. Punjul village also has vulnerability to landslides, so it requires further action in disaster management and mitigation efforts.AbstrakSalah satu tujuan dari proses pembangunan nasional adalah terciptanya pertumbuhan ekonomi dan pemerataan pembangunan di setiap daerah. Permasalahan dalam pembangunan suatu negara adalah ketimpangan antar daerah. Artikel ini bertujuan untuk memberikan arahan mengenai perencanaan pembangunan di Desa Punjul Karangrejo Tulungagung dikaji dari segi sosial, fisik, dan pariwisata. Penelitian ini merupakan penelitian eksplorasi subjektif dengan metodologi ekspresif. Penelitian ini menggunakan data primer dan data sekunder. Teknik pengumpulan data primer dilakukan dengan observasi lapangan, sedangkan data sekunder menggunakan kajian pustaka yang diolah secara sistematis dan objektif dengan menganalisis dan merancang sebuah perencanaan pembangunan yang dilihat dari aspek fisik, sosial, dan potensi wisata dengan rencana pembangunan sendiri berbasis karakter wilayah. Hasil penelitian menunjukkan bahwa terdapat potensi wisata di Desa Punjul, diikuti dengan perkembangan teknologi berupa website desa. Desa Punjul juga memiliki kerentanan terhadap bencana longsor, sehingga memerlukan Tindakan lanjut dalam upaya penanggulangan dan mitigasi bencana.

ANALISIS PERUBAHAN GARIS PANTAI MENGGUNAKAN CITRA SATELIT LANDSAT 8 OLI-TIRS (STUDI KASUS : PANTAI JOLANGKUNG KABUPATEN MALANG) Luthfi Khairul Insan; Miftakhul Firdauz; Muhammad Denzel Religi; Rifki Anshori Azhar; Risky Rena Anggia Sari; Ferryati Masitoh
JURNAL GEOLOGI KELAUTAN Vol 20, No 2 (2022)
Publisher : Pusat Penelitian dan Pengembangan Geologi Kelautan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32693/jgk.20.2.2022.743

Mencairnya es di kutub utara memberikan kontribusi penambahan pada volume air laut, sehingga memberikan dampak lingkungan pesisir laut seperti abrasi pantai, perubahan garis pantai dan banjir rob. Penelitian ini bertujuan untuk mengetahui besar perubahan garis pantai sebab dari kenaikan muka airlaut di Pantai Jolangkung, Kabupaten Malang antara tahun 2011-2021 menggunakan citra Landsat-7 ETM+ dan penyelidikan lapangan. Metode yang digunakan yaitu ekstraksi garis pantai dan tumpang susun (overlay)data citra, sehingga diperoleh data garis pantai dan besar selisih dari perubahan garis pantai. Dari penelitian ini dapat diketahui besar perubahan garis pantai sebesar 9.723,9 m2.

ANALISIS DINAMIKA TINGKAT KEKERUHAN DAN KEDALAMAN RELATIF PERAIRAN DI WADUK SUTAMI KABUPATEN MALANG Alfi Nur Rusydi; Ferryati Masitoh
JFMR (Journal of Fisheries and Marine Research) Vol. 5 No. 2 (2021): JFMR
Publisher : JFMR (Journal of Fisheries and Marine Research)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2021.005.02.16

Penurunan fungsi waduk Sutami yang berupa sedimentasi intensif dalam kurun waktu 2013-2019 perlu dilakukan upaya identifikasi dan monitoring. Upaya ini dilakukan dengan memanfaatkan teknologi penginderaan jauh yang bertujuan untuk menganalisis dinamika sedimentasi perairan berdasarkan kedalaman relatif air dan tingkat kekeruhan air di waduk Sutami pada musim kemarau tahun 2013-2019. Citra satelit Landsat 8 OLI diolah untuk mendapat nilai Relative Water Depth (RWD) dan Normalized Difference Turbidity Index (NDTI). Hasil penelitian menunjukkan bahwa pada tahun 2013 hingga tahun 2019, kenampakan air keruh cenderung teridentifikasi di bagian timur waduk yang juga merupakan inlet waduk Sutami. Analisis kedalaman relatif air dilakukan untuk mengetahui dampak sedimentasi terhadap perubahan kedalaman perairan. Tingkat kekeruhan dan kedalaman relatif perairan tidak berhubungan langsung yang kuat secara statistik. Semakin keruh suatu perairan, maka belum tentu kedalaman relatif pada perairan tersebut menjadi semakin dangkal. Proses sedimentasi perairan di waduk Sutami yang terjadi pada tahun 2013-2019 menunjukkan bahwa proses tersebut dipengaruhi oleh tingkat kekeruhan.

Evaluasi potensi Mata Air Terenapu untuk suplai kebutuhan air bersih penduduk Desa Rendu Butowe Kecamatan Aesesa Selatan Kabupaten Nagekeo Christian Agustino Boro; Didik Taryana; Ferryati Masitoh
Jurnal Integrasi dan Harmoni Inovatif Ilmu-Ilmu Sosial (JIHI3S) Vol. 2 No. 11 (2022)
Publisher : Universitas Negeri Malang

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Rendu Butowe Village is experiencing a clean water crisis. Residents of Rendu Butowe Village use rainwater and rivers to meet their clean water needs. However, in terms of quantity and quality, these water sources have not been able to meet the needs of the population. Rendu Butowe village has the potential of the Terenapu spring which has not been utilized optimally and has only been used by some residents. The purpose of this study is to determine the potential of the Terenapu spring in terms of quantity and quality of water, to determine the population's clean water needs, and to evaluate the potential of the springs for the needs of the population. The survey method used in the research includes measurement of discharge, analysis of water quality, and interviews of residents' water needs. The results obtained are: the discharge of the Terenapu spring is 1,098,357 liters/day. Parameters of iron, E.Coli and, Total Coliform exceed the requirements for clean water, especially drinking water. The need for clean water for the residents of Rendu Butowe Village is 77,912 liters/day. The discharge of the Terenapu spring can supply the water needs of the residents of Rendu Butowe Village for the next 10 years and the excess discharge can still be optimized for the needs of the residents of Rendu Butowe Village and its surroundings. Desa Rendu Butowe mengalami masalah krisis air bersih. Selama ini, penduduk Desa Rendu Butowe menggunakan air hujan dan sungai dalam memenuhi kebutuhan air bersih. Akan tetapi secara kuantitas dan kualitas sumber air tersebut belum mampu memenuhi kebutuhan penduduk. Desa Rendu Butowe memiliki potensi mata air Terenapu yang belum dilakukan pemanfaatan secara optimal dan baru digunakan oleh beberapa penduduk. Tujuan penelitian ini yaitu mengetahui potensi mata air Terenapu ditinjau dari aspek kuantitas dan kualitas air, mengetahui kebutuhan air bersih penduduk, dan mengevaluasi potensi mata air terhadap kebutuhan penduduk. Metode survei digunakan dalam penelitian, meliputi: pengukuran debit, analisis kualitas air, dan wawancara kebutuhan air penduduk. Hasil yang diperoleh yaitu: debit mata air Terenapu yaitu 1.098.357 liter/hari. Parameter besi, E.Coli dan Total Coliform melebih syarat peruntukan sebagai air bersih khususnya air minum. Kebutuhan air bersih penduduk Desa Rendu Butowe yaitu 77.912 liter/hari. Debit mata air Terenapu mampu menyuplai kebutuhan air penduduk Desa Rendu Butowe hingga 10 tahun kedepan dan kelebihan debit masih dapat di optimalisasikan untuk kebutuhan penduduk Desa Rendu Butowe dan sekitarnya.

ANALISIS MORFOLOGI DAN PERUBAHAN GARIS PANTAI TAHUN 2009- 2021 DI WILAYAH PANTAI BANTOL KABUPATEN MALANG Zulvan Yusuf Fadilah; nur afifah; Siti Sarah Rodhiah Mariza; Titah Indit Pakarti; Ferryati Masitoh
JURNAL GEOGRAFI Vol 11 No 1 (2022)
Publisher : Jurusan Geografi Fakultas Ilmu Sosial Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/geografi/vol11-iss1/2542

Coastlines can change rapidly as a result of natural physical processes and human activities. This research is a quantitative study with a numerical approach with the aim of knowing the condition of shoreline changes from time to time. The research study area is Bantol Beach which is located in Kedungsalam Village, Donomulyo District, Malang Regency, East Java. The data is obtained through direct measurements in the field using a total station for 2021, and satellite images for the years 2009-2019. Landform units of Bantol Beach are beach ridge and spit. In field measurements, the length of the coastline is 296.34 m, but it has a fluctuating nature when compared to the previous year. The wave height varies with the highest value reaching 1.1 m and the lowest being 0.1 m. The bottom slope of the coast is divided into two, namely 4% in the west and 3% in the east. Abrasion and accretion rates at Bantol Beach have a higher ratio of abrasion rates than accretion, respectively, with abrasion values of 2411 m² and 1110 m², while accretion values are 1459.7 m² and 254.97 m², respectively. The low tide and high tide zones continue to experience accretion but are volatile and dominated by abrasion.

ANALISIS KEBUTUHAN IRIGASI LAHAN PERTANIAN KANAL PORONG DI KABUPATEN SIDOARJO MENGGUNAKAN CROPWAT 8.0 Nur Afifah Anshori; Siti Sarah Rodhiah Mariza; Titah Indit Pakarti; Ferryati Masitoh; Fajar Setiawan Yuliano
JURNAL GEOGRAFI Vol 11 No 1 (2022)
Publisher : Jurusan Geografi Fakultas Ilmu Sosial Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/geografi/vol11-iss1/2544

Porong Canal is one of the irrigation network systems originating from the Lengkong Baru Weir which flows an irrigation area of 11,059 hectares in the Brantas Hilir Subwatershed. The need for irrigation in planting is very important because it is related to the availability of water and local climatic conditions. For this reason, research on cropping patterns and water requirements was carried out using the Cropwat software. Based on the research results, the Porong Canal irrigation area may have a rice-rice-corn cropping pattern. The total water requirement of plants at planting period 1 (paddy) was 562.4 mm thick, planting period 2 (rice) was 200.6 mm thick, and planting period 3 (corn) was 431.4 mm thick. Based on the water requirement, a irrigation plan is carried out every ten days with a total thickness of irrigation at the planting period of 1 thick (400.9 mm), planting period 2 (146 mm), and planting period 3 (276 mm). Provision of irrigation water every decade of the day is different depending on the growth phase. Total irrigation is different for each planting due to seasonal factors (rainfall), evapotranspiration, soil physical properties and crop coefficients.

Earthquake Hazard Analysis in Ciletuh Pelabuhan Ratu Geopark Area, West Java Ferdian Budi Ar-rouf; Ferryati Masitoh
Jambura Geoscience Review Vol 5, No 1 (2023): Jambura Geoscience Review (JGEOSREV)
Publisher : Universitas Negeri Gorontalo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.34312/jgeosrev.v5i1.14698

Indonesia is situated between Asia and Australia, as well as the Indian and Pacific Oceans. This circumstance places Indonesia in a geologically complicated pattern, which increases the intensity of earthquakes, tsunamis, volcanoes, and landslides. UNESCO has classified Pelabuhanratu Ciletuh Geopark as a world heritage area. This has resulted in an explosion in tourist and development activity. Even though this tourism destination has the potential for high seismicity, there has been no analysis of the seismic hazard in this region. This study aims to map the earthquake hazard in the Ciletuh Pelabuhan Ratu Geopark Area. This will be important for determining vital assets' placement and development planning. This study employs remote sensing studies and geographic information systems to examine and classify earthquake-prone locations. We evaluated data from DEM, RBI, and soil-type maps. This method evaluates each earthquake hazard metric using the Analytical Hierarchy Process (AHP). The large research area has a slope between 0-300. Few locations have steep slopes. In the Districts of Cisolok, Cikakak, and portions of Pelabuhan Ratu, the characteristics of the huge hard rock are derived from the Quaternary volcanic deposits of Mount Endut. As a result, this region possesses a solid rock structure that can absorb an earthquake propagation wave. This dynamic process of geomorphological creation can also demonstrate that the region surrounding the lineage will feel the effects of a future earthquake. The results show that Ciemas, Simpenan, parts of Cisolok, and Pelabuhanratu districts are included in the moderate to high category of earthquake threats.

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