Pembangunan Arsitektur WebGIS untuk Pemetaan Daerah yang Terdampak Erupsi Gunung Merapi (Studi Kasus Kabupaten Sleman)
| Main Author: | Saputra, Ahmad Arif |
|---|---|
| Format: | Thesis NonPeerReviewed Book |
| Bahasa: | eng |
| Terbitan: |
, 2018
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| Subjects: | |
| Online Access: |
http://repository.ub.ac.id/13488/1/Ahmad%20Arif%20Saputra.pdf http://repository.ub.ac.id/13488/ |
Daftar Isi:
- Merapi Mountain is one of volcano with the most active eruption in Indonesia. The eruption of Merapi Mountain in 2010 was a considerable eruption compared to the eruption that occurred in 1870. Sleman District is one of the largest areas affected by the eruption of Merapi Mountain. Some areas in Sleman have turned into a plateau filled with dust from the eruption of Merapi Mountain. According to interviews with Badan Penanggulangan Bencana Daerah (BPBD) of Sleman Regency, Merapi Mountain is predicted to erupt anytime in the near future. This is because the activity of lava is still high from Merapi Mountain and the lava is increasingly reaching the surface. The lava pipe used as a lava exit and hot steam that prevents eruption has been enclosed by hardened lava. These conditions support Merapi Mountain to erupt in the near future. Currently, BPBD does not yet have any historical data related to areas affected by eruption in previous years in the form of maps. This data can be used as data for disaster mitigation and predict the large of areas that may be affected in the event of another eruption. To obtain the data, guided classification technique will be used by using Semi Automatic Classification Plug-In (SCP) from Quantum GIS application. This technique is used for mapping erupted areas in Sleman District by defining polygon training data. Then the results of the mapping will be displayed by using Web-based Geographic Information System (WebGIS), so it can provide the mapping results properly and clearly for users. WebGIS is based on architectural design that is divided into 3 layers, i.e. Client Layer, Service Layer, and Support Layer. Based on the mapping results, the large of area that affected by eruption for each year of the incident was obtained. Based on the mapping results, the large of eruption-affected areas for each year is as follows: 1992 with total area of 281.94 ha and percentage of 4.1%, in 1994 with total area of 1058.61 ha and percentage of 15.2%, in 1997 with total area of 741.11 ha and percentage of 10.7%, in 1998 with total area of 278.6 ha and percentage of 4%, in 2001 with total area of 499.97 ha and percentage of 7.2%, in 2006 with total area of 783.94 ha and percentage of 11.3%, and in 2010 with total area of 3309.55 ha and percentage of 47.6%. While the accuracy of the test results obtained accuracy is 92% and precision is 86.2%, which means that the mapping results have high accuracy and precision.