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Current GOES-16 satellite imagery

Process

The GOES-16 imagery is downloaded from the GOES on AWS open data repository. The imagery is collected every 15 minutes for the contiguous United States using AWS Command Line Interface. The images are then processed with GDAL 2.3. The process is automated using Python 3 and Bash scripts in a cron job, the task scheduling utility in Linux operating systems. Scripts to reproduce this process can be found on GitHub.com

Since GOES-16 doesn't capture the same spectral resolution for green light used in traditional true-color imagery, the green band was calculated from merging portions of the blue (band 1), red (band 2), and near-infrared (band 3) bands. I call this a "pseudo true-color" image since it appears too vegetated compared to other sensors that are closer to human vision, e.g., MODIS true-color image

Time

The imagery is created in two modes, day and night for Eastern Standard Time. Between sunset and sunrise in Kentucky, the imagery from bands 1-3 are no longer viable. The grayscale image (band 2) and the static GeoTIFFs are paused at sunset in Kentucky. Band 16 (CO2 Longwave band) can show the Earth's surface during clear skies and is used for overnight imagery (accessible with the toggle button on the map).

Static images available during day mode

Pseudo-color image (bands 1-3, 1,230px x 1,095px)

Download GeoTIFF for contiguous U.S. (5,158px x 3,222px, approximately 50 MB). Available during day and paused at sunset during overnight.

Grayscale image (band 2, 3,074px x 2,705px)

Download GeoTIFF for contiguous U.S. (10,316px x 6,443px, approximately 70 MB). Available during day and paused at sunset during overnight.

Current web cam images

Look Rock

Purchase Knob

Cold Mountain

New Found Gap

Mammoth Cave

Daniel Boone

Yesterday's web cam animations

Look Rock

Cold Mountain


More weather for the Daniel Boone and Great Smokies


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