VIIRS Today Website is live

August 4th, 2020 |

VIIRS Today imagery from 3 August (Daytime, left, True Color [Bands 1, 4, 3 from VIIRS] and False Color [Bands 7, 2, 1 from VIIRS] from Suomi NPP; Day Night Band imagery from NOAA-20, right)

CIMSS has hosted the MODIS Today website for many years.  Its follow-on, the VIIRS Today has gone live as of 4 August 2020.

As with MODIS today, the USA is subdivided into 8 sectors, and imagery on a 2-km, 1-km and 250-m grid is provided, even though VIIRS’ best resolution at nadir is 375 m (and 750 m for the Day Night Band).

The images above show True-Color and False Color imagery from Suomi NPP on shortly after noon on 3 August over the northeast United States, along with Day Night Band Imagery from NOAA-20, also from (the early morning of) 3 August, shortly before the Full Moon.

VIIRS Today does have an archive going back several years.  The website allows you to choose either Suomi-NPP or NOAA-20 data (links at the page will also show you today’s Suomi-NPP and NOAA-20 orbital passes), and you can view True Color Imagery (combining channels only in the visible part of the electromagnetic spectrum), False-Color Imagery (combining visible and near-infrared information) or (unique to VIIRS) Day Night Band Imagery.  There is also a link to a webpage showing the Moon Phase.

The image below, downloaded from VIIRS Today, shows the NOAA-20 Day Night Band composite from the morning of 4 August 2020 (link).

NOAA-20 Day Night Band image composite, 4 August 2020 (Click to enlarge)

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