IMPACT OF CLIMATE CHANGE ON THE RISK OF LANDSLIDE IN INDONESIA AND THE PROPOSED ADAPTATION ACTIVITIES

Budhi Setiawan¹ Tri Wahyu Hadi² and Oman Abdurahman³

¹Lecturer, Civil Engineering Department, University of Sriwijaya, Palembang, INDONESIA;

Tel: +62-711 360760; Fax: +62-711 580139; Email: budhi_setiawan@unsri.ac.id or budhi@wgtt.org

²Lecturer, Meteorology Department, Bandung Institute of Technology, Bandung, INDONESIA

³Researcher, Geological Agency, Ministry of Mining and Energy Resource, Bandung INDONESIA

 

Abstract

 

The projected climate change will likely impose landslide in several regions in Indonesia. Currently, landslides frequently hit Indonesia causing loss of life and property. For example, in the period of 2003-2005 Indonesia suffered from 103 landslides across seven provinces with a huge amount of loss. Landslides must be taken into account in any comprehensive water related study, considering that water is often a trigger in landslide occurrences. There are at least 918 landslide zone, with Central Java having the most landslide zone (327 location), West Java (276 locations), West Sumatera (100 locations). This paper identifies several high risk regions throughout Indonesia based on the national level of climate risk study. Based on 30 year climate projection, North Sumatera area has increasing of landslide risk especially in September. Otherwise in Java-Bali, the increasing of landslide is in December, January and February, wherein it could be evaluated that in February due to rainfall accumulation. In Sulawesi, especially in North Sulawesi, the increasing of rainfall is in September, otherwise in Middle Sulawesi is in December which is not significant increase and reversal in another month. In the other hand, in Papua has high increasing rainfall especially in January. This paper concludes with some possible actions to adapt to the impacts of climate change to landslide.

Keywords: climate change impact, landslide, rainfall, adaptation

International Symposium, Exhibition, and Short Course on Geotechnical and Geosynthetics Engineering: Challenges and Opportunities in Climate Change 7 to 9 December 2010 | Bangkok, Thailand

VULNERABILITY ASSESSMENT OF URBAN INFRASTRUCTURE TO CLIMATE CHANGE IMPACT. Case Study: SMA-SMP Buildings at Palembang City +)

Norma Puspita
Student, Postgraduate program of Infrastructure Management, Civil Engineering Department, University of Sriwijaya

Budhi Setiawan, Sarino
Lecturer, Civil Engineering Department, University of Sriwijaya

Abstract
Palembang yang merupakan kota sungai karena banyak dialiri anak-anak sungai yang bermuara ke sungai Musi yang membelah kota Palembang perlu mengantisipasi dampak – dampak perubahan iklim. Menurut Arief Anshory Yusuf dan Herminia Francisco (2009), kota Palembang menduduki peringkat ke 16 dari tempat (distrik) paling rentan terhadap perubahan iklim di Asia Tenggara. Berdasarkan laporan IPCC dampak perubahan iklim pada daerah pesisir pantai / sungai yang mempunyai resiko paling tinggi adalah badai tropis, banjir dan meningkatnya muka air laut. Menurut CSIRO (2007), jenis infrastruktur yang memiliki resiko paling tinggi terhadap dampak perubahan iklim adalah infrastruktur gedung atau bangunan. Tujuan dari penelitian ini adalah pengembangan dari kajian kerentanan tingkat meso – level (regional/propinsi) dan memberikan informasi tingkat kerentanan infrastruktur gedung sekolah SMPN/SMAN/SMKN terhadap dampak perubahan iklim di kota Palembang. Bagian paling utama untuk menentukan tingkat kerentanan adalah indeks kerentanan infrastruktur (IVI). Indeks kerentanan infrastruktur ditentukan berdasarkan indikator – indikator kerentanan infrastruktur gedung seperti jumlah pengguna gedung (murid, guru dan pegawai), luas gedung, jarak gedung dari sungai dan infrastruktur drainase. Tingkat kerentanan infrastruktur diklasifikasikan berdasarkan 3 level yaitu rendah (low), sedang (moderate), dan tinggi (high). Analisa akhir pada kajian kerentanan adalah analisa resiko dengan melakukan overlay antara bahaya (banjir dan kenaikan muka air laut) dan tingkat kerentanan infrastruktur gedung. Analisa yang dilakukan secara kualitatif menggunakan aplikasi ILWIS. Penelitian ini menghasilkan tingkat kerentanan infrastruktur gedung pada kondisi sekarang (current) dan proyeksi yang akan datang (future), yang divisualkan dalam peta kerentanan dan resiko kota Palembang.

Kata kunci: perubahan iklim, kerentanan, infrastruktur, IVI, ILWIS.

+) accepted to present at Konferensi Nasional Pasca Sarjana Teknik Sipil ITB , Campus Center ITB, 26 Mei 2010.

Aknowledgement
The authors would like to express their gratitude to Ambiyar Setiojati for providing framework and conceptual model of micro-scale of vulnerability assessment.

Impacts of Climate Change on the Sustainability of Water Supply in Indonesia

Djoko S.A. Suroso, Ph.D
School of Architecture, Planning and Policy Development, ITB
Jl. Ganesha 10, Bandung.
Oman Abdurahman
Geological Agency, Ministry of Energy Resources and Minerals
Jl. Diponegoro 57, Bandung
Budhi Setiawan, Ph.D
Civil Engineering Department, Sriwijaya University
Jl. Srijaya Negara Bukit Besar Palembang

Abstract
The water sector is one of the most important sectors to be influenced by climate change impacts. The projected climate change will likely impose water shortage in several regions in Indonesia. Currently, for an example, the Java-Bali regions have already faced a deficit in its water balance, while for other regions like Sumatra, Sulawesi, Nusa Tenggara, and the Moluccas are projected in critical conditions. Based on climate projections, most regions in Indonesia will suffer from a gradual decrease of water supply due to temperature increase and rainfall changes that will affect the water balance. Combined with estimated population growth rates, increased water demand will cause severe water shortages to occur, especially in Java and Sumatra for the period of 2020-2030. This paper identifies several high risk regions throughout Indonesia based on the national level of climate risk study. It is found that areas which possess high risk on water shortage stretch in some parts of the Java-Bali region, especially in a few locations in the northern and southern of West Java, middle and southern of Central Java and East Java; as well as in the capital of the North Sumatra, West Sumatra, Bengkulu and Lampung (Sumatra), Nusa Tenggara Barat and South Sulawesi. This paper concludes with some possible actions to adapt to the impacts of climate change to water shortage.

Keywords: climate change impact, water supply, water shortage, adaptation strategy

Vulnerability Assessment of Urban Infrastructure to Climate Change Impact: A Framework and Conceptual Model

Budhi Setiawan*, Norma Puspita**, Ambiyar Setiojati***

*Lecturer, Department of Civil Engineering, Sriwijaya University
**Student, Postgraduate of Infrastructure Management, Sriwijaya University
***Technical Assistant, Geotechnical Engineering Research Group, Department of Civil Engineering, Sriwijaya University

The majority of regions in Indonesia are considered to be vulnerable to potential impact of climate change, due to its geographical and socio-economic circumtance. In order to prioritize, design and implement intervention to adapt to climate change, it is essential to adopt a coherent set of approach, framework and method for examining vulnerability and adaptive capacity. To effectively formulate adaptation strategy at the region (kabupaten-kota) level, it is proposed to apply ”micro level-multi sectoral approach” which means assessing vulnerability at the micro-level but considering the multi sectoral impacts of climate change i.e. water and ocean sectoral. This study is present a framework and conceptual model to develop urban infrastructure vulnerability index.

Keywords: climate change, vulnerability, urban infrastructure, index

+) abstract submitted to Seminar Nasional Teknik Sipil VI 2010, 27 Januari 2010, ITS Surabaya

Migrasi paksa …

Penduduk dunia mencapai 6,8 miliar, naik dua kali dari tahun 1960-an atau naik empat kali dibandingkan abad lalu. Kenaikan ini akibat kemajuan di bidang kesehatan yang menaikan tingkat harapan hidup dan tingkat kesuburan yang tidak mengalami penurunan yang berarti. Akibatnya banyak tempat yang semakin padat di satu sisi – khususnya di kawasan dan menjadi jarang bahkan kosong di sisi lainnya. Populasi terus bertambah diperkirakan 200 ribu jiwa per hari.

Evaluation of Soil CPT Program to Estimate Heterogeneity of Soil using Sondir Data

Budhi Setiawan* and Ambiyar Setiojati**

*Lecturer, Civil Engineering Department, Sriwijaya University INDONESIA
**Student, Civil Engineering Department, Sriwijaya University INDONESIA

ABSTRACT: Since on soft soil, large settlement might be occur under loaded foundation without actual shear failure occurring, the soil profile based on soil investigation in soft soil areas e.g. Palembang is become important. Among the different in situ tests, sondir is a simple, quick, and economical test that provides reliable in situ continuous soundings of subsurface soil. In Indonesia, sondir is considered the most frequently used method for characterization of geomedia. This research focused on site characterization of soil properties based on sondir data. This procedure is very important due to management data of soil field test is still conventional and unstructured.

accepted to present at First Makassar International Conference on Civil Engineering (MICCE2010), March 9-10, 2010

Aknowledgement
The authors would like to express their gratitude to Irma Sepriyanna and Mutiara Ramadhaniati for providing data and Ikatan Wali Mahasiswa for supporting fund to attend this conference.

ESTIMASI BENTUK DASAR SUNGAI BERDASARKAN ANALISA BESAR BUTIR SEDIMEN DI MODIFIED AJKWA DEPOSITIONAL AREA (ModADA) TIMIKA, PAPUA

Budhi Setiawan1), Edy Sutriyono2), Merri Jayanti3)

1) Civil Enginnering Department, Faculty of Engineering, University Sriwijaya
Kampus Indralaya, Ogan Ilir 30662, Sumatera Selatan

2) Mining Engineering Department, Faculty of Engineering, University  Sriwijaya
Kampus Indralaya, Ogan Ilir 30662, Sumatera Selatan

3) Formerly student at Civil Engineering Department, University of Sriwijaya

ABSTRACT

Tailing is one of waste that’s produced by mining activity at PT. Freepot Indonesia (PT FI) and it also called as sirsat, which is the representing abbreviation from sand in mining. This Sirsat is placed at ModADA ( Modified Ajkwa Deposition Area), that’s an area which is modified and managed operation of sirsat and, broadly about 235 kilometres, also separated by West Levee and East Levee. The System that is used by exploit the river stream to conduct the tailing from mountain area to the sediment area in ModADA.
The river flow consists the result of material erosion that is correlated with the friction factor, velocity of sedimentation and geometric configuration that is assumed as bedriver morphology. Grain size is one of the factor that influence the bedriver morphology that is used as the parameter in this research. The measurement and gathering of grain size sirsat that have been conducted since 1997 until now and in the same time, The Parameter analysed by using statistical approach such as mean, variance and standard deviation. Estimation of the bedriver morphology is conducted by using the analysis of characteristic channel form based on D50 of grain size. The result of estimation the bed river morphology can be used to predict sedimentation pattern of the river flow in Ajkwa Lowland, Timika, Papua.

Keywords: ModADA, Grain Size, Bedriver, Sedimentation

Lain padang lain belalang, lain negara lain universitas, gayanya …

Secara pertama kali datang di Palo Alto Train Station, dari info yang didapat ada free shuttle Marguite ke dalam kampus Stanford University. Dilihat-lihat ternyata ada beberapa rute … Info dari supir taksi waktu menuju hotel, lebih tepat disebut kota Stanford saking luasnya. Dan lihat dari rute ternyata kayaknya iya juga tuh …

Begitu naek free shuttle, petunjuk dari guideline book, yang terdekat adalah Line B Clockwise ke arah Alumni Center tempat IAMG 2009 Conference. Yang rada heran adalah penumpangnya, kok tampangnya tidak semua mahasiswa, ada nenek-nenek malah ada anak-anak. Secara kebetulan, ketemu visiting fellow orang Indonesia, yang baru 3 minggu di Stanford, makasih pak telah menunjukkan jalan …

Sampe jam 3 sore jadwal lumayan padat, setelah itu ada kesempatan buat jalan dan secara kebetulan ketemu Pak Nur Heriawan dari ITB (sudah lama mengenal nama tapi baru ketemu), so keliling kampus dengan beliau yang kebetulan tinggal di guest house-nya Stanford yang ternyata letaknya di belakang kampus, kalo dilihat dari Stasiun Palo Alto, tetapi ternyata dekat juga ke jalan besar lainnya. Kalo di kampus Jepang, guest house rata-rata diletakkan di main entrance, kalo di unsri adanya di kampus bukit … jauh ke kampus baru ..

Nilai Semester Khusus

A. Kampus Indralaya

1. Ilmu Lingkungan (download)

B. Kampus Bukit

Likelihood General Basic

Guru ratu wong atua karo …

Guru juga yang mewarnai kehidupan ini di kehidupan ilmiah saya sekarang dan masa mendatang. Dengan tanpa hormat pada semua guru yang telah membekali dengan segenap ilmunya, guru berikut adalah yang mewarnai denyut nadi ilmiah saya hingga hari ini.

Tatkala dunia komputasi mulai dikenal, adalah almarhum Dr Lesmana Polo yang mengenalkan menggunakan komputer dalam dunia riset. Sebagai penggemar game digger dan tetris waktu itu, bahasa program BASIC telah mengalahkan semuanya. Tiada hari tanpa BASIC, hari belum lengkap jika belum menyentuh dan menggunakan BASIC. Takdir berkata lain, beliau meninggalkan kami semua sebelum seluruh ajarannya diberikan …

Tatkala kuliah dipenuhi dengan rutinas matematik numerik dan hapalan yang berkepanjangan, adalah almarhum Dr Supriyo Ambar memberikan warna dengan statisiknya. Nalar berjalan mengikuti ketidakteraturan dan diungkap serta diterjemahkan lewat bahasa angka yang simpel dan mudah dipahami. LIKELIHOOD adalah hal yang begitu mengagumkan saat itu, perilaku bumi bukan untuk ditaklukan tapi bumi untuk difahami, hiduplah bersama alam …

Tatkala harus memilih di akhir adalah almarhum Dr N Prawoto menjadi pilihan. Abah biasa kami panggil, begitu keras mendidik kami, mengajarkan kami kehati-hatian dengan ilmu yang kami miliki, menurunkan kami kepedulian akan sesama, memberikan kami nafas cinta akan ilmu dan mengasihi kami dengan profesionalitasnya. Abah juga yang memberikan saya untuk terus menelurkan ide dan ilmu, sewaktu kebimbangan memilih URGE dan DUE-Karyasiswa sebagai sumber beasiswa.

“Abah khawatir lewat URGE ide dan ilmumu akan hanya terkotak untuk mencari dunia, Abah yakin lewat DUE itulah ide dan ilmumu akan jauh lebih bermanfaat. Masih banyak anak negeri yang perlu orang-orang yang mau berkorban untuk bangsanya, jadi GENERAL di negeri kecil yang memakmurkan pasukannya lebih bernilai daripada jadi prajurit di negeri besar”, pesan terakhir beliau.

Selamat jalan GURU BESARKU ….

Ijinkan muridmu untuk terus belajar dan belajar, memaknai dan memahami alam lebih dalam, mewarnai dan memberi arti denyut nadi ilmu di masa mendatang…