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Forum Geografi
ISSN : 08520682     EISSN : 24603945     DOI : -
Core Subject : Science,
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.
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Articles 16 Documents
Search results for , issue " Vol 16, No 1 (2002)" : 16 Documents clear
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 Santoso, Sugiharto Budi; Anna, Alif Noor; Lestari, Dyah Pratiwi Cahyo
Forum Geografi Vol 16, No 1 (2002)
Publisher : Forum Geografi

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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 Rindarjono, Moh. Gamal
Forum Geografi Vol 16, No 1 (2002)
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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.
The Development of Settlement in Code River Dwelling from Traditional Myth Forward Modern Functional in Yogyakarta Soekadri, Soekadri
Forum Geografi Vol 16, No 1 (2002)
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Abstract

It is interesting to see the Phenomenon of houses improvement in the Cultural Geography and District Development point of view since 1965, during Development Order era until Rqhrmation Order (nowadays) in Kampung Gembalalean Bawah, Cokrodirjan Kalurahan Suryatmajan and Kampung Ledok Tukangan Tegalpanggung. The objective of this study is to figure out whether it is true that there is a relationship and influence between family education, occupation, family income, religion, orientation, society institution (LKMU) and also nature resource such as land and water toward the indication of dwelling environment development which are also as a cultural changing.The method that is used in this study is Purposive Sampling which determines the location survey. The source in this study can be divided into two parts, those are the primary data and secondary data The primary data are obtained by applying interview to 40 heads of family from Kampung Gemblalean Bawah and Cokrodirjan, and 40 heads of family from kampung Ledok Tukangan. The secondary data are from the related institutions.In the analisys the writer needs to employ the multiple regresion and correlation technic to define the relationship and influence between the social economy factors and the culture. The result of this study shows that since 1965, during the development order, the development of houses that is considered as the culture phenomenon is in progress.The analisys shows that there is a significant relationship on the family income factor in Tegalpanggung but there is not in Suratmajan. The multiple regression analisys displays that it has a positive relationship on all factors including social economy factor in both locations, but it becomes doubtful after each R Square analisys contributes more or less 20 percent only. It is because of the historical background of society in both locations. They were migrants and now live in their ancestral hams. One of their typical characteristics is that they still have an orientation to their origin places. Therefore the houses they live in now tend to he temporary houses for short-term settlement.TheAMD Program (one of Indonsian Government Program which concerns Indonesian Army/ABRI to make a community service in the village), could manipulate the condition by guiding the people to carry out the public necessity such as flood preventive. The flood always threatens the sojourn, dwelling house and their environment with destruction. This program is eflective to influence the people mattitude and behavior to make a forward movement in house renovation and environment maintenance. The rsult emphasizes a new atmosphere of cultural dimension, which is caused by a power distance, in this case, interest group, so that enables the people to have culture progress.
Identification of Environment Chase in Surround of Sermo Reservoir; and the Influence Possibility for Function and at the Age of Reservoi Sudarmadji, Sudarmadji
Forum Geografi Vol 16, No 1 (2002)
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Abstract

Sermo reservoir is the only one belongs to Yogyakarta Special Province; it is relatively a new reservoir with the area of 1.9 kilometer square and its capacity of 25 million cubic meter: It started to operate since 1996 as flood control, irigation, water supply, tourism and fishery purposes. As a reservoir it could be considered to be a manmade lake, as its condition nearly similar to a lake. Since it operated (even during construction period) there were some significant environmental changes within the reservoir and in the area around the reservoir due to the human activities. These changes could threat the sustainability of the reservoir itselfThis research aims to identiflr the human activities living around the reservoir and visitors coming to the area, and to evaluate the potensial of the activities to produce wastes which is discharging in into the reservoir; which may threat the sustainability of the reservoir: The observatorium in the field has been conducted in the area of the reservoir and its sorrounding. I t was firund fiom the observation that activities o f fishery using net (karamba), tourism altogether with its facilities, land use around the reservoir for agriculture purposes, mining of class C ore, have given a lot of contribution to wastes (liquid and solids) and sediments into the reservoir: Those activities may cause water quality of the reservoir lo decrease as well as reducing the reservoir depth. Those situation was observed in the northern and north western parts of the reservoir Water quality degradation of the reservoir may threat reservoir as source of domestic water supply, while the sedimentation may reduce the life time of the reservoir The fishery and tourism activities was estimated as a main cause of water quality degradation, beside agricultural and domestic wastes originated from sattlement area around the reservoir: Sediments coming into the reservoir are derived fiom transported and movement of materials from land slide occuring around the reservoir; due to distruction of land in constructing the relatively new ring-road close to the shore line of the reservoir: Of course, the sediment is also coming from rivers enteringdie reservoir. Sermo reservoir is a relatively young reservoir; the early observation of environmental changes of the reservoir could hopely be used as indicator to study ecological changes of the area within and around of the reservoir; and could be used as a comparison to other reservoirs, as well as basic environmental management of the reservoir and its surrounding.
The Strategy Of The Homeless Survival In Surakarta Kaeksi, Retno Woro; Umrotun, Umrotun; Susanto, Susanto; Handayani, Triana Nur; Nugroho, Satriyo
Forum Geografi Vol 16, No 1 (2002)
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Abstract

The research is carried out in Surakarta. The goal of the study is to know: the characteristic of the homeless, the factors that cause them to he the homeless and the strategis of the homeless to survive in Surakarta. The research uses survey method, while its area is chosen purposively. The research also uses primary and secondary data. The primary data is obtained by interviewing the respondents with questionnaire, while secondary data is based on the information got from the relevant institution.The resjoondents are taken 10 % randomly from all the population. The results of the rsearch show that the homeless are 11-8 years old (96.66%), most of them are boys (91.11%). The majority of the respondents did graduate from the Lower Secondary School (55.56%); most of them come from outside of Surakarta (62%). Their primary activity is as singing beggars (62,22 %) and their daily income is about RP 10. 000 RP 14. 000 (60.00%). Their parents are uneducated people. They are only graduated from Elementary School (7S.56%).The factors that cause them to he homeless are the economic factor 77.78%, lack of family attention (13.33%) and the willingness to he independent (80.89%). Based on the  result this research, we know that the poverty has made the children become homeless. The strategis to survive are: they are thrif (40%), add their time to work (13.13%), move to other place (11.11%) and save their money (15.56%).
Occupation Change of Farmer to Fishermen: A case in Coastal Rural Area in Gunungkidul District Ritohardoyo, Su
Forum Geografi Vol 16, No 1 (2002)
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Abstract

Utilization of marine resource is one of type of farmer coping with critical land in coastal 47% The consequence of this, is the change in their occupation status from the farmer to fisherman However the change does not always mains that their poverty status may also changes. This factual problem is the base for research objectives, with the main emphasis on understanding farmer motives of changing occupation to fisherman, process variation of occupation change, and the impact of this process to household incomeThe research was carried out in six coastal village of Gunungkidul Distric. Survey method was employed by collecting data from respondents. The population of respondents amounted to 341 households (HH) working as fisherman Sampling technique was proportionally simple random in which 120 HH was taken as mpondents sample. They were representazivis of Kanigoro, Pucung, Kemadang, Ngestiharjo, Sidoharjo, and Purwodadi villages. Data on socio economic structure of the household, the process of occupation change, and household income were collected by mean of structured interview. Data analysis was performed through descriptive technique in which frequencies and cross tabulation were mostly used.The research results indicate that the motive of local farmer to become fisherman are various, but the main motive (81,7%) to increase household income. The major cause of this is physical environment pressure of the area (ie. critical land and backward village). This leads fiirmer to low level of accissebility to socio-economic infiasructure, and low level of economic status or very poor category. The majority of farmer (58,3%) carried out transitional occupation befiare becoming fisherman. This encompass activities as fishing or collecting sea shell and lsea algaemn the sea front Intermediary activitis being perfimned a form of adaptation to marine environment (sea water) from agricultural land environment. This means that most farmers search and gain skill and experiences related to fishery. Occupation change from farmer to fisherman has significant impact in the betterment of income. In average, the fisherman monthly income is Rp 531,375 which is much higher than the minimum level of basic need in Yogyakarta Povince (Rp 266,870.). In the other word the occupation change from farmer to fisherman driven by motive to increasses household income is proven to be capable to statisfy the need if household economy.
Groundwater Characteristic and Fresh Water Supplying System of the East Slope Merapi Volcano Priyana, Yuli; Sigit, Agus Anggoro
Forum Geografi Vol 16, No 1 (2002)
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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 Khakhim, Nurul
Forum Geografi Vol 16, No 1 (2002)
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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 Application of Global Positioning System (GPS) in Mapping Survey of Historical and Archeological Site Khakhim, Nurul
Forum Geografi Vol 16, No 1 (2002)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1360.994 KB) | 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 Santoso, Sugiharto Budi; Anna, Alif Noor; Lestari, Dyah Pratiwi Cahyo
Forum Geografi Vol 16, No 1 (2002)
Publisher : Universitas Muhammadiyah Surakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1084.858 KB) | 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.

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