week 7 assigment
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School
Oregon State University, Corvallis *
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Course
201
Subject
Electrical Engineering
Date
Jan 9, 2024
Type
Pages
1
Uploaded by MinisterNeutron17160
YOUR NAME: ________________________________________
1. The Normalized Burn Ratio is similar to the Normalized Difference Vegetation Index (NDVI)
that we covered in class and in the book. Like NDVI, it uses the near-infrared band, but rather
than the red band for contrast, it uses a band in the short-wave infrared. The calculation NBR =
(NIR-SWIR) / (NIR+SWIR).
You closely examine the pixels in a Landsat image, and find that the values of pixels in the
SWIR and the NIR bands for a given location are as follows.
Fill out the remainder of the
Normalized Burn Ratio matrix:
2. A Landsat image is approximately 6160 pixels wide. Each pixel is 30 meters by 30
meters. Roughly what is the image swath in kilometers? If the telescope were changed so the
pixels were 500m, what would the swath be?
3. Classification: Assume that the picture on the left represents the Band 2 vs Band 1 spectral
space of a satellite image, and that the red-dashed-lines represent boundaries between three
classes. Based on those lines and the Band 1, Band 2 values of the pixels in the two gris, assign
class codes to all 16 of the cells in the blank matrix on the right.
Bodin Sherlock
-0.30
0.20
-0.30
-0.20
-0.50
-0.3
-0.2
-0.3
Swath (km)=Image Width (pixels)×Pixel Size (meters)/1000
Swath=6160×30/1000=184.8 km
Swath=6160×500/1000=3080 km
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