Blog

GOES Super Rapid Scan video of severe thunderstorm from our...

Published 4 days ago

GOES Super Rapid Scan video of severe thunderstorm from our colleagues at CIMSS. This is a great illustration of the benefits of 1-minute SSRO imaging. More of this to come when GOES-R launches in March 2016.

GOES-15 (GOES-West), GOES-14 and GOES-13 (GOES-East) visible images showing the development of a severe thunderstorm which produced multiple tornadoes, and hail up to 3 inches in diameter over west Texas on May 19, 2015. GOES-15 and GOES-13 were in standard scanning mode (images generally every 15 minutes), while GOES-14 was in 1-minute Super Rapid Scan Operations for GOES-R (SRSO-R) mode. Toward the end of the animation, note the merger with the smaller northward-moving storm.

Tom Duncan of the Fairbanks North Star Borough (FNSB) just...

Published 12 days ago

Tom Duncan of the Fairbanks North Star Borough (FNSB) just pointed out to GINA the most recent update to Google Earth for Fairbanks now includes 3d buildings.  

Grab Tom’s 3d tour of downtown Fairbanks.  Don’t forget to check the 3D buildings in the Layers menu to get the full effect.

Tom’s announcement:

A few days ago an update of Google Earth was released that includes a 3D view that covers much of the Fairbanks area, including west to the base of Chena Ridge, north to intersection of Ballaine and Goldstream, east to the intersection of Steese and Chena Hot Springs Road, and south to the south side of the Tanana River.  Sorry North Pole, not covered yet.

The navigable 3D view gives a stunning new perspective for an online map, and has many exciting potential applications.  The measuring tool has also been enhanced to use the new layer to measure building heights.  I created a tour using the GoogleEarth tools to give you an idea what it can do.  I am still learning how to create a tour in Google Earth, so please forgive the occasional jumpiness.

You will need to have Google Earth installed on your machine.  Then double-click on the attached kmz file to view the tour.  Enjoy!

Alaskan Sunshine Doesn't Burn the 24-hour Microphysics Product

Published 5 months ago Alaskan Sunshine Doesn't Burn the 24-hour Microphysics Product:

RGB Night-Time Microphysics product

A guest post by Eric Stevens to the NASA SPoRT blog regarding a RGB Night-Time Microphysics product being delivered to the Alaska National Weather Service by SPoRT and GINA.

This work is supported by the NOAA NESDIS GOES-R and JPSS program offices.

-Tom

UAF gets $1.7 million grant for Weather Service upgrades

Published 5 months ago UAF gets $1.7 million grant for Weather Service upgrades:

Photo courtesy Light Trekker Studios

A nice writeup of an important project for UAF GINA and for near-real-time satellite data provision in Alaska. This project is taking our systems down the research-to-operations path, supporting a critical need for the NWS in Alaska.

Many thanks go out to our partners helping to make this succeed at NOAA NESDIS, NWS OST, and NWS Alaska Region.

Photo courtesy Light Trekker Studios.

-Tom

MODIS Snowcover Imagery over Alaska on the Longest Day of the...

Published 6 months ago

MODIS Snowcover Imagery over Alaska on the Longest Day of the Year, June 21, 2014. 

This image, taken at 2:17pm local time in Alaska, is a striking example of the “snowcover” product generated by combing data from three different channels of the MODIS instrument (bands 3, 6, and 7) into a single color image.  This methodology yields a product that clearly shows the extent of snow-covered ground (in areas free of thick clouds) and is particularly useful in Alaska as the winter snowpack and sea ice retreat in the spring and early summer.  The deep red over the Arctic Ocean north of Alaska indicates sea ice, while ice-free ocean appears black.  Large “pans” of sea ice are evident, and some of the last “shore-fast” ice of the season still clings to sections of the coastline along northwest Alaska and along the northern coast of Russia’s Chukotsk Peninsula.  Clouds over the Arctic Ocean that are primarily composed of liquid water appear white.  Over the land, snow-free ground appears green.  Given the date of late June, only the highest terrain is still covered by snow, evident here as local red areas along the Brooks Range in northern Alaska and over the higher mountain peaks of the Alaska Peninsula.  The pink clouds extending from the Gulf of Alaska up through Alaska’s Interior indicate higher clouds cold enough to include ice particles.  Lower-elevation warmer clouds, such as the marine stratus straddling the northern side of the Alaska Peninsula, are composed of liquid cloud droplets and appear white.  Afternoons in late June often include some convective activity in Alaska, and this image shows “fair-weather cumulus” over much of western mainland Alaska, with a few of the more developed convective cells reaching elevations cold enough to begin glaciating the clouds and thus giving them a red color in this image. 

The Geographic Information Network of Alaska (GINA), a facility at the University of Alaska’s Geophysical Institute in Fairbanks, Alaska, receives data from MODIS instruments via direct broadcast antennas as the Terra and Aqua satellites transit over Alaska.  From these data, GINA generates a variety of products for users ranging from meteorologists at the National Weather Service in Alaska, to researchers at universities in and outside of Alaska, to the general public.  

This work is supported by the NOAA NESDIS GOES-R and JPSS program offices.

- Eric Stevens

An amazingly clear day over most of Alaska, as imaged by the...

Published 9 months ago

An amazingly clear day over most of Alaska, as imaged by the Suomi NPP satellite. (7-Sept-2014 20:58 UTC. http://feeder.gina.alaska.edu/npp-gina-alaska-truecolor-images/2014_09_07_20_58_jd250)

GINA captures and distributes this data in near-real-time through the High Latitude Proving Ground with support from the NESDIS GOES-R and JPSS satellite program offices. Our flagship user is the Alaska Region National Weather Service.

Did I mention it was a truly beautiful autumn day here in Fairbanks yesterday? 

-Tom