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Forum Geografi
Published by Universitas Muhammadiyah Surakarta
ISSN : 08520682     EISSN : 24603945     DOI : -
Core Subject : Science,
Earth & Planetary Sciences
Forum Geografi, Indonesian Journal of Spatial and Regional Analysis (For. Geo) is an open access, peer-reviewed journal that will consider any original scientific article for expanding the field of geography. The journal publishes articles in both physical and human geography specialties of interest to spatial analysis and regional analysis in (but not limited) Indonesia by applying GIS and/or remote sensing techniques.
Arjuna Subject : -
Articles 24 Documents
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Search results for , issue "Vol 16, No 1 (2002)" : 24 Documents clear
Groundwater Characteristic and Fresh Water Supplying System of the East Slope Merapi Volcano Yuli Priyana; Agus Anggoro Sigit
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.v16i1.416

Abstract

slope of Merapi Volcano in Boyolali. The aims of this study are first to know the characteristic of groundwater in every morphological unit, second to know supplying system of fresh water in every each unit.The method used is survey method. The sampling use to know the characteristic groundwater both quality and quantity of the water, and supplying system of fresh by using area sampling. As basic of stratification of its region is morphological unit. Analysis method used is tabulation, laboratory analysis, and graphic analysis to describe its space.The result of the study shows that the quality of groundwater in every morphological unit is good enough, but in general the contents of element Ca, Mg, N03, CI, SO4, HCO3 shows that the lower the region is, the higher the content of the element . But if it is seen from the depth of its groundwater, so that the fluvial volcanic plain is the shallowest, then the fluvial volcanic foot plain and the last the volcanic foot area. Supplying system of fresh water, which derived from the dominant of well water, is especially used in morphological unit in fluvial "volcanic foot plain. The spring water is used by the population in the morphological unit in volcanic foot plain and then in morphological unit of fluvial volcanic foot plain. The population uses much rainwater in the morphological unit of volcanic foot plain.
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.
The Technical Integration of Remote Sensing and Geographical Information System to Predict the Peak Discharge Which Uses the Characteristic of Physical Environment of Catchments Area In Elo Sub Catchments Area in Central java Sugiharto Budi Santoso; Alif Noor Anna; Dyah Pratiwi Cahyo Lestari
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.v16i1.417

Abstract

This research is carried out in Elo sub catchments area that contains of the regency and the municipality of Magelang and Temanggung. The goals of this study are: (1) to predict the peak discharge by using the characteristic variable of catchments physical environment by means of the aerial photo interpretation,  to examine the technical accuracy of remote sensing to detect coeficient run off which used to predict the peak discharge. The research uses the aerial photo of black and white panchromatic on the scale 1:50. 000 in I994. It issupported by secondary data and field survey.The research method is the integration between the technical remote sensing and the Geographical Information System (SIG). Field survey is used to check the result of aerial photo interpretation and to collect the data that cannot he obtained from the image. The sample uses the purposive stratified sampling.The results of the research show that: (1) the aerial photo of black and white panchromatic on the scale 1:50. 000 is obtained to interpret the slope area and it is not good to interpret the accuracy of the covered arm is about 87% and 77,4 %, (2) the current coeflicient which is accounted hased on the table of Cook method is about 40,36% - deviates 39,94% from the field data; (3) the peak discharge in Elo sub catchments area with rational formula is about 3022,03 m/second, while the peak discharge as the observation result is about 112,675 m/second. Its large of research area causs the time to peak takes a long time, which causes raining intensity increases. The increasing value of raining intensity and the flow coeficient makes the value of peak discharge increases that larger than measured peak discharge.
Applied Multitemporal Image and Geography Information System to Analyze Region Potential in Part of Slump of Jebres Subdistrict in Surakarta Moh. Gamal Rindarjono
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.v16i1.413

Abstract

This research is aimed at detecting the areas having potential to be the slums by looking at the decrease of population index and physical environment from year to year. In this way, a model of analysis for the area with the potential of being slummed can be resulted.The research was conducted in some parts of Jebres Subdistrict in Surakarta Municipality by employing qualitative method approach. There were two types of data used in this research. The first were prime data inform of black and white Panchromatic aerial photographs with the scale of 1 :5 O00 at the year of 1982, and small format colorful anchromatic aerial photographs at the year of 1992. The second were secondary data related to the population condition i.e. demography, economy, health, social and culture, as well as physical environment covering water and land for 20 years (1982 j 2000).All the data in this research were analyzed by Geographical Infiormation Systems at arc Info. The final result of the research showed that based on the 1982 black and white Panchromatic aerial photographs, slum areas did not exist at all. Meanwhile, based on the 1992 small format colorful Panchromatic aerial photographs with the scale of 1:5 000, 140.882 hectares of slum areas were found at jagalan and Gandekan Villages. Overlay from the maps of quality development in dwelling area and the decrease in environment index produced a map showing the area with the potential of being slummed covering 240.14 Hectares.

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