Photos relevant to the RADAR
This is an overview of photos that might be relevant to Hajo's request regarding the RADAR.
Click on a thumbnail to download the full size photo.
ALOS/AVNIR-2 Satellite images, June 2007
http://www.gi.alaska.edu/~cpetrich/RADAR-relevant/June_2007/
Satellite images were taken on both June 8 and June 12, 2007 (see file names).
The file names of visible images are marked RGB321;
note that all visible channels saturated on June 8 over ridged ice.
Images marked RGB443 show the near-IR channel of the satellite in both R and G (i.e. IR appears as yellow/brown),
and the red channel of the satellite in B (i.e. visible red appears as blue).
The pressure ridges come out quite nicely with this configuration.
None of the images are white balanced.
The satellite looked straight down and 34 degrees off nadir on June 8 and 12, respectively.
Nominal pixel size is 10 m and 15 m, respectively. Projection: UTM.
Note: Downward looking AVNIR-2 images of the Barrow area were acquired also on June 10, 2008.
However, ASF does not have them available yet (I guess they will be available within the next three weeks).
Images acquired on May 24, 2008 are over 90% covered in clouds.
ALOS/AVNIR-2 Satellite images, May and June 2008
http://www.gi.alaska.edu/~cpetrich/RADAR-relevant/May_2008/
This is the IR channel of the AVNIR-2 satellite image taken over Barrow around noon on May 24, 2008, a few hours after it rained.
The satellite was looking straight down, so the blue and green channels are saturated over snow and ice like last year.
Note that the dark spots on the ice off the coast of Barrow are shadows of clouds. Projection: UTM.
http://www.gi.alaska.edu/~cpetrich/RADAR-relevant/June_2008_sat/
This is the IR channel of the AVNIR-2 satellite image taken over Barrow around noon on June 10, 2008,
a few hours before the sky cleared up around Point Barrow.
The satellite was looking straight down, so the blue and green channels are saturated over snow and ice like last year.
Note the cloud cover North of the Barrow Airport. Projection: UTM.
