This animation of VIIRS 11.5 um imagery shows the breakup of the Arctic ice pack around Point Barrow and near Utqiagvik with individual ice floes moving west and southwest. The ice pack with numerous fractures and leads has a slower westward drift compared to the smaller individual ice floes. The frequent orbit of polar satellites …
Frequent polar satellite imagery from GINA captures ice floes Read More »
This VIIRS DayLandCloud RGB image from Sept 9, 2021 shows the northern extent of GINA’s Direct Broadcast coverage over the Arctic Ocean all the way to the North Pole. VIIRS imagery has a high resolution of 375 meters which is highlighted in the close-up view of the detailed ice structure offshore of Banks Island in …
Clouds are covering much of Interior and Northern Alaska after a week of clear weather. This is a DayLandCloud RGB image which is made from three VIIRS satellite bands assigned to red, green, and blue components to produce a false color image. The 1.6 um band is assigned red, the 0.87um band to green, and …
Early August Showers in the Northern and Interior Alaska Read More »
A spectacularly clear day over Alaska allows JPSS #VIIRS to see a raft of smoke plumes from interior fires on Aug 4, 2021 (True Color RGBs).
Two images of the VIIRS i04 band (3.74 um) show the change in three days of an early season fire near Kongishluk Bay. The top image is from May 26th and the bottom image is from May 29th using a colormap that enhances the hottest Brightness Temperatures from green to red to yellow. With prevailing …
This is a VIIRS i05 Infrared image (11.5 um) at 1245 UTC 08 Feb 2021 with colormap to show the colder temperatures. The legend at the upper left shows how the colors relate to temperature with colder to the right and warmer to the left. The non-grey colors range from -20 to -85 deg F …
A weather front is approaching southeast Alaska and these images of microwave satellite products provide a lot of information regardng what you would want to know about it. The first image is the AMSR2 ocean surface wind showing a maximum of 55 kt winds along the outer coast near Sitka. The second image is a …
This AMSR2 Passive Microwave Sea Ice Concentration product valid at 1412 UTC 16 Dec 2020 shows sea ice covering most of Norton Sound extending to northeastern portions of the Bering Sea.
This estimate of snow depth over Alaska at 1240 UTC 07 Dec 2020 was produced from the AMSR2 microwave sensor data on the GCOM-W satellite.
