Extract point values in adjacent raster cells?

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04-19-2018 08:44 AM
BrittanyBankovich
New Contributor II

Here's a fun little challenge. I have point locations of snakes, and I need to extract the habitats associated with each point from a land cover raster. Problematically, the points were taken along roads, not within the actual habitats in which the snakes were spotted. I would like to extract the values of the raster cells nearest the "Road" cells without modifying the land cover raster (it's 20GB). Currently I am just zooming in to each point and doing this manually, but thought there might be a way to do it more quickly. Thanks for the help!

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3 Replies
DanPatterson_Retired
MVP Esteemed Contributor

Shift raster shift the points, then extract values to points.  With any luck you will nail all non-roads in one go..  If not, get shifty in another direction and try again, and combine results... simply dump your observations that fall on road.  You might even pick up habitat on the otherside of the road, perhaps where the snake was trying to get to 

BrittanyBankovich
New Contributor II

Thank you! Will give this a go.

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DanPatterson_Retired
MVP Esteemed Contributor

if you find any snags, a screen grab might help provide a less shifty solution

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