IASOA - Eureka Observatory

Eureka, Nunavut, Canada 80.050 N, 86.417 W, Ellesmere Island The Eureka station is composed of three sites: Polar Environment Atmospheric Research Laboratory (PEARL), Zero altitude Pearl Auxiliary Laboratory (0PAL), and Surface and Atmospheric Flux, Irradiance and Radiation Extension (SAFIRE). PEARL is situated on higher terrain in order to sample the atmosphere above the aerosol layer, from ground level to the middle and upper atmosphere, whereas 0PAL is closer to sea level in order to sample within the aerosol layer. SAFIRE is a tower instrumented for radiation and flux measurements. There are numerous instruments at Eureka, including, but not limited to, a radar and lidar for cloud studies, imagers, interferometers, photometers, radiation sensors, an ozone lidar, and standard weather measurements. Eureka is a testament to interagency and international cooperation among scientists. The principal agency in charge of Eureka is the CAnadian Network for the Detection of Atmospheric Change (CANDAC), which is a consortium of scientists from various Canadian universities. Detailed information about the station, associated agencies, instruments and principal investigators can be found at the CANDAC web site candac.ca/candac/index.php and at www.iasoa.org. Questions regarding station operations should be directed to Pierre Fogal ([e-mail]). Dr. James Drummond is the focal point for the science conducted at Eureka ([e-mail]).