Geographic Information Systems

Questions tagged [night-time-images]

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Google Earth Engine VIIRS average radiance daily image

I'm using Google Earth Engine VIIRS data collection : "NOAA/VIIRS/DNB/MONTHLY_V1/VCMSLCFG",monthly average radiance data for VIIRS as: var dataset = ee.ImageCollection('NOAA/VIIRS/DNB/...
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Export Image with attribute table in Google Earth Engine

I am quite new to Google Earth Engine. I am trying to export a VIIRS night-time light image with an attribute table attached (displaying the mean, median etc) which is also clipped to India (I am ...
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R nightlights color palette blue to yellow

I would like to plot nighttime light images in R using traditional NASA used color palette from blue to yellow. Does this color palette exists in any package?
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Is it possible to detect human settlements by night light data?

I am working on a project in which human settlements are identified using geo-tagged Twitter data. Since this project is focused on developing countries (mostly African), I am afraid that many human ...
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60 views

Why is there an extra pixel in some world images, 43201 vs 43200?

I have two images both of which have world nighttime lights. They are off by 1 pixel and the equivalent decimal degrees, but the 43201 image seems to be "too large." Using gdal: Driver: GTiff/GeoTIFF ...
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Google Earth Engine pixels's spatial resolution of Suomi NPP VIIRS DNB nighttime lights data

I would like to know in meters exactly the pixels' spatial resolution corresponding to :15 Arc Seconds" of VIIRS Nighttime Day/Night Band Composites Version 1 data from Google Earth Engine ...
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88 views

Querying Landsat 8 night images in Google Earth Engine? [duplicate]

Apparently, Landsat 8 occasionally acquires images at night-time during ascending passes. However, in the Google Earth Engine data catalogue (https://developers.google.com/earth-engine/datasets/...