Nurul Khakhim
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IDENTIFIKASI AIRTANAH ASIN BERDASARKAN PENDUGAAN GEOLISTRIK DI PESISIR KOTA CILACAP JAWA TENGAH Setyawan Purnama; Ahmad Cahyadi; Erik Febriarta; Nurul Khakhim; Hari Prihatno
Geo Media: Majalah Ilmiah dan Informasi Kegeografian Vol 11, No 2 (2013): Geo Media: Majalah Ilmiah dan Informasi Kegeografian
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1405.64 KB) | DOI: 10.21831/gm.v11i2.3450

Abstract

Airtanah merupakan salah satu sumberdaya air potensial yang dapat digunakanuntuk memenuhi kebutuhan air manusia. Pemanfaatan airtanah yang berlebihan diwilayah pesisir seringkali menyebabkan terjadinya intrusi air laut. Penelitian ini bertujuanuntuk mengetahui keterdapatan airtanah asin di Pesisir Kota Cilacap. Analisis dilakukandengan pendugaan geolistrik. Analisis data dilakukan dengan menggunakan softwareIP2Win. Hasil analisis menunjukkan bahwa airtanah asin terdeteksi pada titik A, C, D danG.Kata Kunci: Airtanah Asin, Pesisir, Geolistrik, Kota Cilacap
Mapping of Marine Area Boundary of Central Java Province using Differential GPS Survey Method Nurul Khakhim; Dulbahri Dulbahri; Barandi Sapta Widartono
Forum Geografi Vol 16, No 2 (2002)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v16i2.603

Abstract

The development of GPS (Global Positioning System) technology which is measuring position by satellite, has taken a great metodology aspect of position on surface of earth. The standard GPS measurement takes an absolute positioning. To develop the accurate abd precision, it is used the differential method. Differential GPS measurement can be much more accurate than standard GPs measurement, wherever the method uses one receiver as base station/ reference and the other receiver as field station in a same time. That could reduce and eliminate drifts and errors. The aim of research is use the differential method of GPS survey to map the ocean boundary of Central Java Province. Physical data which neede are base line and base point. Base line were taken from obsrvation of longtime Landsat TM image band 5th based o opinion that shore line are clear seems and easy to interpreted at 10.00 am according to Landsat satellite reording time and the lowest tide time as base line. Location of lowest tide were selected at conspicuous place, such as cape, dry shore, etc and measured base on the BPN (Badan Pertahanan Nasional) base/ reference point (orde 2 and 3) on the district, with GPS differential metod. Twelve miles distance from base line of ocean bounddary is belong to province and 1/3 of is belong to district. Characteristic of marine landform as cape, bay, estuaria, attended to international rules. Final report of the research were 1) oean boundary map of Center Java Province, 2) the location and base/ reference points (orde 2 and 3) that could be reference as a base point differential method.
The Application of Global Positioning System (GPS) in Mapping Survey of Historical and Archeological Site Nurul Khakhim
Forum Geografi Vol 16, No 1 (2002)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23917/forgeo.v16i1.412

Abstract

Technical development of Global Positioning System (GPS) is the positional determination system of ground control point in the earth surface, which based on satellite. It leads to the significant influence on the methodological aspect of positional determination survey in the earth surface. Global Positioning System gives the three dimension position (X, K Z) or longitudinal, latitude and altitude which are formulated in the reference of World Geodetic System (WGS) in 1984. The data characteristic is the first data, which is required in the survey of limit mapping of historical and archeological site. This article tries to explain the possibility of using the technology of Global Positioning System (GPS) to map the archeological site which contains of potential, ohstacle, methodology and case study in Boko Prambanan temple area. It is also utilized to the possibility of using the Geographical Information System (GIS) to analyze the spatial existence site of environmental condition.