<![CDATA[Perubahan garis pantai pada suatu wilayah disebabkan faktor alamiah (arus, gelombang, badai, kenaikan muka air laut, jenis material pantai) dan atau faktor non alamiah (aktifitas manusia seperti penambangan pasir, reklamasi, perubahan penggunaan lahan). Deteksi perubahan garis pantai di Kabupaten Jembrana dilakukan menggunakan pendekatan penginderaan jauh yaitu menggunakan data citra Satelit Landsat dengan pathrow 117/66 pada tanggal akuisisi 17 Juli 1994 dan 17 Desember 2012. Garis pantai diekstrak dengan menggunakan band near infra merah (band 5) yang mempunyai karakteristik reflektan mendekati nol pada perairan, bahkan pada perairan yang keruh sekalipun. Penetapan garis pantai dilakukan dengan menggunakan metode visual dan on screen digitized mengingat daerah studi yang tidak terlalu luas. Selanjutnya dilakukan tumpang susun (overlay) antara data Landsat tahun 1994 dan 2012 pada perangkat lunak sistem informasi geografi untuk diketahui daerah-daerah yang mengalami abrasi dan sedimentasi pada periode waktu 1994 hingga 2012. Hasil analisis menunjukkan perubahan garis pantai yang disebabkan abrasi seluas 673.600 m2 dengan luasan terbesar terjadi di Desa Perancak seluas sekitar 228.500 m2, sedangkan perubahan garis pantai yang disebabkan oleh sedimentasi seluas 851.500 m2 dengan luasan terbesar terjadi di Desa Pengambengan seluas sekitar 544.100 m2. [Title : COASTLINE CHANGE DETECTION USING REMOTE SENSING TECHNOLOGY IN JEMBRANA BALI] Coastline change occurs due to natural factors (currents, waves, storms, sea level rise, beach material type) and non-natural factors (human activities such as sand mining, reclamation, land-use change). In general, coastline changes caused by the resignation of the beach area landward (abrasion), the advance of the land toward the sea (accretion) and the global phenomenon of rising sea levels. Detection of coastline changes in Jembrana performed using remote sensing approach by using Landsat Satellite image data with pathrow 117/66 at the acquisition date July 17, 1994 and December 17, 2012.The coastline was extracted using near infra-red band (band 5) which have characteristics of its reflectance value near zero in the waters, even though at turbid waters. Determination of coastline was done by on-screen digitized using a visual method considering the study area that is not too wide. By using overlay method between Landsat 1994 and 2012 data at geographic information system software, areas experiencing erosion and sedimentation in the period 1994 to 2012 can be generated. Overlay analysis shows that the coastline change due to abrasion is measuring 673.600 m2 with the largest area occurred in Desa Perancak which abrasion area is around 228.500 m2, while the coastline changes caused by sedimentation is measuring 851.500 m2 with the largest area occurred in Desa Pengambengan which sedimentation area is approximately 544.100 m2. ]]>
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