Quarterly No 53
Published March 2017 •
This issue is in some respects a Copernicus Mission
Special since it contains numerous examples of imagery provided
by readers from the Sentinel 3 satellite,
described last issue, as well as introducing the Sentinel 2A satellite and its 10 metre/pixel
||Our principal articles in this issue
concern ESA's Sentinel 2A satellite
which transmits four channels offering amazing 10-metre per
pixel resolution. David Taylor sets the ball rolling by
presenting an image of the Panama Canal, along with zoomed
sections of the lock systems at either end of the waterway to
highlight Sentinel's amazing resolving power.
||The EOS LAND
VIEWER website provides not only a viewing portal
for Sentinel 2A imagery, but also permits the download of
individual channel files which the user can subsequently
combine into colour images.
||Unfortunately, the Sentinel 2A
downloads are provided in a format that mainstream graphics
software is unable to decode. David Taylor has come to the
rescue with a new, dedicated program, Sentinel2toJPEG which combines the RGB files
into real colour images. Les Hamilton has prepared a profusely
illustrated article explaining how to obtain the best results
from this software.
||There is a fascinating piece from
John Tellick on the investigation of stratospheric Blue Jets from the International Space
||To complete matters, we dip into the
archives of NASA Earth Observatory to
explore such diverse topics as the latest NASA IceBridge
program, snow on the Hawaiian peaks and an eruption at Erta Ale
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