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Topic Title: Any GIS Gurus on da Light? Topic Summary: Created On: 03/27/2020 04:28 PM |
Linear : Threading : Single : Branch |
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- worksuxgetsponsered | - 03/27/2020 04:28 PM |
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- 6ScoopsMcGruntington | - 03/28/2020 03:26 PM |
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- worksuxgetsponsered | - 03/28/2020 03:55 PM |
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- 6ScoopsMcGruntington | - 03/28/2020 09:49 PM |
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- worksuxgetsponsered | - 03/29/2020 06:55 AM |
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- 6ScoopsMcGruntington | - 03/29/2020 05:08 PM |
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- worksuxgetsponsered | - 03/30/2020 09:23 AM |
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- saltydog73 | - 04/02/2020 08:14 AM |
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- worksuxgetsponsered | - 04/03/2020 04:23 AM |
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 03/28/2020 03:26 PM
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GIS novice here...
I'm confused how are you extracting by mask using point data? Don't you need a shape or polygon of some sort? |
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03/28/2020 03:55 PM
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I've managed to get through this part and bulling my way through the rest.
The points were sample locations on lake O (which was my shape file). the images were satellite tif's that I needed to isolate the Lake O area, so that I could extract surface reflectance (of three bands) in order to extrapolate Chlorophyll-a data. My final test will be to see how well I did versus ground data. It's taken me two straight days of cursing and throwing tantrums, but I can see the light at the end of the tunnel.... 
------------------------- Specializing in sarcasm and condescending rhetoric since 1971. |
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