Living this far north means that the Alaskan winters are dark, with very little direct sunlight. This limits the use of some satellite products, such as True Color or the DayLandCloud, which rely on visible light wavelengths to capture images. However, many satellite products can continue to operate even at night, which is invaluable to […]
Snow, Fog, Clouds and Some Nighttime Views Read More »
There’s an upcoming webinar on Tuesday, November 15 @ 11:00 AM AKDT! Climate specialist Rick Thoman from the ACCAP and plant biologist JJ Frost will be giving a talk on the 2022 Alaska Fire Season, focusing on Southwest Alaska which experienced record breaking fires that impacted local communities and challenged resource management. This webinar will
Webinar Overview of the 2022 Alaska Fire Season Read More »
Upcoming VAWS webinar on October 5 at 11:00 AM to 12:00 PM! The speakers are Annette Patton of the Sitka Sound Science Center and Jacyn Schmidt of the Central Council Tlingit and Haida Indian Tribes of Alaska. They will be talking about the new Sitka Landslide Risk Dashboard, which uses NWS rainfall data to monitor
VAWs Workshop on Sitka Landslide Risk Dashboard Read More »
Upcoming webinar, on July 20 @ 11:00 AM AKDT! The speaker is Judah Cohen of Atmospheric and Environmental Research Inc. who will be talking about how “Eurasian Snow Cover Variability Links with Stratosphere-Troposphere Coupling and its Impacts on Alaskan Weather.” Workshop Description: Observed fall Eurasian snow cover extent (SCE) anomalies were first linked with variability
VAWS Workshop on Snow Cover Variability Read More »
GINA is participating in the CSPP conference hosted by the Cooperative Institute for Meteorological Satellite Studies (CIMSS) at the University of Wisconsin-Madison this week! CSPP is the backbone of software GINA uses to turn raw data into products, particularly CSPP-Leo. In attendance is Satya Kalluri, head of NOAA/JPSS science team, and Lihang Zhou, the program
GINA at 2022 CSPP Conference Read More »
GINA collects satellite data around the clock from the satellites that pass over Alaska every day. This graphic shows the number of VIIRS infrared passes received each day by GINA’s Direct Broadcast antennas. The North Slope of Alaska into the Arctic Ocean is the most frequently covered area, with around 16-18 passes per day. Radiating
VIIRS Pass Frequency Read More »
There’s an upcoming webinar this Wednesday, June 15 at 1:00 PM AKDT! The speaker is Dr. Jessica Cherry, RCS Director for Alaska, talking about “NOAA’s Regional Climate Services (RCS) Program: what does it do and how does it work with other entities?” This talk provides an overview of the National Centers for Environmental Information’s Regional
VAWS Workshop on NOAA’s Regional Climate Services Read More »
The Tatlawiksuk Fire, 41 miles south of McGrath, has been burning steadily (as of posting) since June 4th, sparked by the recent lightning storms in Southwest Alaska last week. These VIIRS animations of DayLandCloudFire (left) and the i04 band (right) show the change of the fire perimeter (in bright red) from June 8th to June
On Fire Pixel Saturation Read More »
This is the third of a three part series about parallax issues with satellite data. Part 1 was an introduction to the problem and Part 2 focused on specific concerns with regard to geostationary data, but parallax is not only a geostationary satellite problem. In this section we’ll more closely examine parallax considerations with polar
The Problem with Parallax: Part 3 Read More »
This is the second of a three part series about parallax problems with satellite data. Part 1 presented an overview of parallax in this context and reviewed differences in orbital characteristics of geostationary and polar satellites. In this section we’ll examine more closely parallax issues associated with geostationary satellites. Part 3 will cover the topic
The Problem with Parallax: Part 2 Read More »
