Physics
Scientific paper
May 2009
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2009agusmsa33a..05d&link_type=abstract
American Geophysical Union, Spring Meeting 2009, abstract #SA33A-05
Physics
0340 Middle Atmosphere: Composition And Chemistry, 9315 Arctic Region (0718, 4207)
Scientific paper
The Polar Environment Atmospheric Research Laboratory (PEARL) at Eureka, Nunavut (80N, 86W) is one of the highest latitude atmospheric measurement sites in the world. Constructing and operating this laboratory has been, and continues to be a challenge, but the importance of measurements at these high latitudes makes the challenge worth the effort. Atmospheric measurements at PEARL span the altitude range from the surface to 100km and cover a wide range of atmospheric parameters that is steadily increasing with time as the site is further instrumented. Currently the site hosts more than 25 instruments including spectrometers, radiometers, imagers, radars and lidars. The high latitude at PEARL means that measurements can be made both inside and outside of the winter polar vortex depending upon the phase of the vortex. The winter/summer light/dark cycle is very much in evidence and a profitable way of thinking of the atmosphere at this latitude is that it has a "day" that lasts a year. This talk will discuss the challenges of setting up an observatory and keeping it operating at such a remote location and at such low temperatures. PEARL is supported by the Canadian Foundation for Innovation (CFI); Canadian Foundation for Climate and Atmospheric Science (CFCAS); Canadian Space Agency (CSA); Environment Canada (EC); Indian and Northern Affairs Canada (INAC); Government of Canada International Polar Year (IPY) funding; Ontario Innovation Trust (OIT); Natural Sciences and Engineering Research Council (NSERC); Nova Scotia Research Innovation Trust (NSRIT); Ontario Research Fund (ORF); and the Polar Continental Shelf Program (PCSP).
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