Difference between revisions of "Remote Sensing"
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| − | '''Remote Sensing''' is a generic term for types of satellite or high-altitude aviation imagery that contains bands outside of the visual spectrum, or uses a novel method of capturing images that the human eye would otherwise be unable to see.<blockquote>Where we're going, we won't need eyes to see |
+ | '''Remote Sensing''' is a generic term for types of satellite or high-altitude aviation imagery that contains bands outside of the visual spectrum, or uses a novel method of capturing images that the human eye would otherwise be unable to see.<blockquote>"Where we're going, we won't need eyes to see" - Sam Neill, ''Event Horizon''</blockquote> |
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| − | - Sam Neill, ''Event Horizon''</blockquote> |
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== NIR (Near-Infrared) == |
== NIR (Near-Infrared) == |
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Revision as of 06:53, 16 July 2022
Remote Sensing is a generic term for types of satellite or high-altitude aviation imagery that contains bands outside of the visual spectrum, or uses a novel method of capturing images that the human eye would otherwise be unable to see.
"Where we're going, we won't need eyes to see" - Sam Neill, Event Horizon
NIR (Near-Infrared)
Many satellite imagery providers (e.g. Planet 0.5m) include NIR bands. NIR puts particular emphasis on plants and vegetation, and can be used to calculate A common method of analysis is to simply use the imagery as you would optical, but replace the "red" band (e.g. in Qgis) with the NIR data.
SAR
todo
Other
todo: talk about how you can detect ice, snow, fire, etc. by doing veeery specific band math in e.g. qgis. Maybe write a guide on it?