Lake Erie surrounded by snow

December 2nd, 2020 |

NOAA-20 VIIRS True-Color image, 1752 UTC on 2 December 2020 (Click to enlarge)

NOAA-20’s early afternoon pass over Lake Erie on 2 December 2020 produced a stunner of an image.  Snow surrounds the open lake, a result of the first widespread storm of the season over the eastern Great Lakes.

This image was created using Polar2Grid and Direct Broadcast data at the UW-Madison CIMSS.  The direct link is here.  Images from other passes from NOAA-20 are in this directory, and from Suomi-NPP are here.

A68a Update

December 2nd, 2020 |

A very large iceberg broke off the Larsen-C Ice Shelf on the Antarctic Peninsula in July 2017 (recall this CIMSS Satellite Blog post, or this more recent post). While NOAA’s GOES-16 ABI visible sensors may not be ideal, they can monitor the iceberg’s location if the cloud cover is not too thick, as shown in the “natural color” animation. A similar loop, in the animated gif format. These composite images include information from ABI “blue” and “red” visible bands, along with the near-infrared “vegetation” band. A sample still image from November 21, 2020. More information can be found in the quick guide.

A GOES-16 natural color animation, using images at 15:30 UTC each day. The first day is November 4, while the last day is December 2, 2020.

Since it was relatively cloud-free for several hours on 02 December, an animation of GOES-16 “Red” Visible (0.64 µm) images is shown below — note the presence of numerous small ice floes that had separated from the edges of A68a, and were circulating within the various ocean currents surrounding the large iceberg as it continued its slow drift toward South Georgia island. 

GOES-16

GOES-16 “Red” Visible (0.64 µm) images from 02 December 2020 [click to play animation | MP4]

The geo2grid software was used to generate the images for these animations.

Thanks to a recent tweet by Simon Proud, showing a GOES-16 animation of A68a: