Dalam menganalisis indeks kebasahan

Dalam menganalisis indeks kebasahan dengan citra landsat, kanal/band yang digunakan adalah 4 dan 5. Band 4 termasuk dalam spektral infra merah dekat (near)/Near Infrared (NIR) dengan panjang gelombang 0.76-0.90, kegunaan dari band 4 tersebut yaitu dapat membedakan jenis vegetasi yang dideteksi dan juga aktivitas vegetasi tersebut sehingga dapat membatasi tubuh air dan juga kelembaban tanah. Sedangkan band 5 termasuk dalam infra merah sedang/middle infrared dengan panjang gelombang 1.55-1.75, band 5 berguna untuk menunjukkan komposisi kelembaban tumbuhan dan kelembaban tanah, juga dapat membedakan salju dan awan. Indeks kebasahan ini juga menunjukkan normalized difference water index (NDWI). NDWI ini dikembangkan untuk menggambarkan badan air dari citra satelit. Dengan formula

Hasil (Inggris) 1:

In analyzing the landsat image with kebasahan index, the Canal/band use are 4 and 5. Band 4 is included in the near infrared spectral (near)/Near Infrared (NIR) wavelengths 0.76-0.90, the usefulness of these 4 bands namely can distinguish types of vegetation were detected and also the vegetation activity so that it can limit the body's water and also soil moisture. While the band 5 included in the medium/middle infrared infrared wavelengths 1.55-1.75, band 5 is useful to indicate the composition of moisture to plants and soil moisture, it can also distinguish between snow and clouds. Index of kebasahan also shows the normalized difference water index (NDWI). NDWI was developed to describe the body of water from satellite imagery. With a formula

Hasil (Inggris) 2:

In analyzing the wetness index with Landsat imagery, channels / bands used are 4 and 5. Band 4 is included in the near infrared spectral (near) / Near Infrared (NIR) with wavelength of 0.76-0.90, the usefulness of the band 4 is able to distinguish vegetation type vegetation activity is detected and also so that you can limit the body's water and soil moisture. While the band 5 included in the infrared moderate / middle infrared with a wavelength of 1.55-1.75, band 5 is useful to show the composition of plant moisture and soil moisture, also can distinguish between snow and clouds. The wetness index also shows the normalized difference water index (NDWI). NDWI was developed to describe the body of water from the satellite image. with formula