All Questions
Tagged with reflectance ndvi
6 questions
0
votes
2
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395
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Convert Landsat 9 Surface Reflectance product DN to surface reflectance values
I downloaded the Landsat 9 L2 imagery from Earth Explorer for the purpose of calculating NDVI. However, when opened in ArcMap 10, the pixel values are in the range of 7000 to 45000. I understand that ...
2
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1
answer
204
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NDVI out of range
I have composed a mosaics of 3 images of Landsat 8 Surface Reflectance Level 2 for the bands NIR and RED. According to the Landsat Surface Reflectance Product Guide each band is supposed to be ...
- 413
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1
answer
3k
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Converting Digital Number (DN) to reflectance in order to analyze NDVI
I'm working with a mapir nir + red camera meaning that its blue band captures nir light and its red captures red normally. I understand that NDVI is calculated using reflectance values.
How do I ...
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10
votes
1
answer
1k
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Landsat level-2 data comparison
I'm doing a temporal analysis of NDVI and temperature over 17 years, necessitating data from Landsat 5,7, & 8. I'm interested in using level-2 Landsat data available from https://espa.cr.usgs.gov/...
- 425
3
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1
answer
2k
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NDVI analysis of LANDSAT 8 imagery in QGIS
I am trying to run an NDVI classification of 2015 multispectral LT8 imagery in QGIS to assess the quality of vegetation cover in regards to habitat suitability for a primate species in northern ...
- 123
3
votes
1
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2k
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Converting Worldview 2 imagery to TOA reflectance for Vegetation Change detection in ArcGIS?
I am working on a change detection study to look at effects of herbicides on vegetation growth. Therefore I have Worldview 2 (4 band +pan band) imagery for two subsequent years that I would like to ...
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