Analisis Perubahan Tutupan Lahan Daerah Aliran Sungai Rawapening Dengan Sentinel-1A Tahun 2015-2016

Putri, Rizky Annisa (2017) Analisis Perubahan Tutupan Lahan Daerah Aliran Sungai Rawapening Dengan Sentinel-1A Tahun 2015-2016. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Sekitar 90% air tawar di permukaan bumi tersimpan di danau dan waduk yang memberi manfaat bagi kehidupan manusia untuk kebutuhan air sehari-hari; seperti untuk industri, pertanian, transportasi, pembangkit listrik tenaga air dan pariwisata. Sebagian besar daerah aliran sungai (DAS) dan danau di Indonesia telah mengalami degradasi kualitas dan kuantitas yang disebabkan oleh pertumbuhan penduduk, konversi lahan dan erosi. Danau Rawapening di Jawa Tengah adalah satu dari lima belas Danau Prioritas Nasional Indonesia yang harus dipantau dan dikelola dengan baik. Untuk pemantauan rutin perubahan tutupan lahan danau dan daerah aliran sungainya, data penginderaan jauh optik yang umum digunakan memiliki masalah yang berkaitan dengan tutupan awan di atas wilayah danau tersebut. Dalam penelitian ini, kami mengusulkan pemanfaatan Sentinel 1A, yang merupakan data penginderaan jauh aktif yang dapat menembus awan, sehingga lebih efektif untuk mengamati perubahan tutupan lahan tersebut. Hasil klasifikasi data yang direkam pada Bulan Desember 2016 memiliki hubungan yang kuat dengan objek lapangan (Kappa = 94,218%). Semua objek air berhasil dikenali sebagai air; 94,595% lahan basah dikenali sebagai lahan basah (sisanya sebagai air); 91,379% vegetasi dikenali sebagai vegetasi (sisanya sebagai pertanian); 95,238% pertanian dikenal sebagai pertanian (sisanya sebagai perkotaan) dan 96,774% perkotaan dikenali sebagai perkotaan (sisanya sebagai lahan basah dan pertanian). Selama bulan Mei dan Desember 2016, perubahan tutupan lahan umumnya dipicu oleh curah hujan yang tinggi di bulan Desember dan pertumbuhan eceng gondok yang cepat serta tidak terkendali di bulan Mei. ============================================================ Approximately 90% of freshwater on the earth surface is stored by lakes and reservoirs that provide benefits for human life such as for daily water needed, industry, agriculture, transportation, hydroelectric power and tourism. Most watersheds (DAS) and lakes in Indonesia have experienced the quality and quantity degradation caused by population growth, land conversion and erosion. Lake Rawapening in Central Java is one of fifteen Indonesian National Priority Lakes that should be seriously monitored and well managed. For routine monitoring of land cover change of the lake and its watershed, an optical remote sensing data that generally used was facing a problem related to cloud cover over the area of lake. In this research, we propose the utilization of Sentinel 1A, an active RADAR remote sensing data which can penetrate the cloud, thus more effective for observing land cover changes. The classification result of December 2016 data has strong relationship with field object (Kappa= 94.218%). All water objects were recognized as water, 94.595% of wetland were recognized as wetland (others as water), 91.379% of vegetation were recognized as vegetation (others as agriculture), 95.238% of agriculture were recognized as agriculture (others as urban) and 96.774% of urban were recognized as urban (others as wetland and agriculture). During May and December 2016, the landcover change was triggered by high precipitation in December and rapid-uncontrolled growth of water hyacinth in May. During May and December 2016, the landcover change was triggered by high precipitation in December and rapid-uncontrolled growth of water hyacinth in May.

Item Type: Thesis (Undergraduate)
Additional Information: RSG 621.367 8 Put a
Uncontrolled Keywords: Monitoring Ekosistem Danau, Data Satelit, Penginderaan Jauh Aktif, Lake Ecosystem Monitoring, Satellite Data, Active Remote Sensing
Subjects: G Geography. Anthropology. Recreation > G Geography (General) > G70.217 Geospatial data
G Geography. Anthropology. Recreation > G Geography (General) > G70.5.I4 Remote sensing
Divisions: Faculty of Civil Engineering and Planning > Geomatics Engineering > (S1) Undergraduate Theses
Depositing User: PUTRI RIZKY ANNISA
Date Deposited: 19 Sep 2017 08:32
Last Modified: 27 Dec 2017 05:07
URI: http://repository.its.ac.id/id/eprint/42942

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