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      The backscatter characteristic of ALOS PALSAR imagery within eucalyptus grandis forest plantation stand

      Kajian karakteristik backscatter citra ALOS PALSAR pada tegakan hutan tanaman eucalyptus grandis

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      Date
      2011
      Author
      Woisiri, Ayub
      Jaya, I Nengah Surati
      Saleh, M. Buce
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      Abstract
      This study was performed to identify the relationship beetwen the backscatter of ALOS PALSAR having pixel size of 50 x 50 m and 6,25 x 6,25 m, and the variables of Eucalyptus grandis forest plantation stand. The main objective of the study is to identify the variables that affect backscatter value. The study was carried out in Samosir Regency, North Sumatera Province. This study found that the variable of stands that influence the backscatter are (1) basal area height of tree having classification accuracy of 61.7 %. for resolution of 50 meters; and (2) acreage of tree canopy and trees density and the classification accuracy of 85. %. for resolution 6.25 meters.
       
      Satelit radar (radio detection and raging) merupakan sensor gelombang mikro (microwave) yang memungkinkan untuk melakukan perekaman permukaan bumi pada segala cuaca, baik siang maupun malam. Radar telah dikembangkan dengan pesat sejak dioperasikannya SEASAT, yaitu SIR-A, SIR-B, SIR-C, ERS-1, ERS-2, ALMAZ, JERS-1, RADARSAT dan ALOS PALSAR. Citra satelit tersebut beberapa telah digunakan dalam penelitian. Harrell et al. (1995) melakukan penelitian terhadap sensitifitas citra ERS-1 band C dan JERS-1 band L terhadap biomasa dan struktur tegakan. Selanjutnya Herman dan Dool (2005) menggunakan citra radar ERS-1 dan ERS-2 untuk penelitian karakteristik kekasaran permukaan dan tekstur sedimen. Hasil penelitian ini menunjukkan bahwa ada korelasi negatif antara backscatter dengan kandungan lumpur, serta korelasi positif yang signifikan antara backscatter dengan ukuran butir sedimen.
       
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      http://repository.ipb.ac.id/handle/123456789/53255
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      • MT - Forestry [1508]

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      Indonesia DSpace Group 
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