Mesopause dynamics from the scandinavian triangle ofradars within the PSMOS-DATAR Project

• Main Authors: Manson, A. H., Meek, C. E., Hall, C.M., Nozawa, S., Mitchell, N.J., Pancheva, D., Singer, W., Hoffmann, P.
• Other Authors: Institute of Space and Atmospheric Studies Saskatoon (ISAS), Department of Physics and Engineering Physics Saskatoon, University of Saskatchewan Saskatoon (U of S)-University of Saskatchewan Saskatoon (U of S), Tromsø Geophysical Observatory (TGO), The Arctic University of Norway Tromsø, Norway (UiT), Solar-Terrestrial Environment Laboratory Nagoya (STEL), Nagoya University, Department of Electronic and Electrical Engineering, Department of Physics, Okayama University, Leibniz-Institute of Atmospheric Physics (AIP)
• Format: Article in Journal/Newspaper
• Language: English
• Published: HAL CCSD 2004
• Subjects: [SDU.OCEAN]Sciences of the Universe [physics]/Ocean; Atmosphere; [SDU.STU]Sciences of the Universe [physics]/Earth Sciences; Arctic; Tromsø; Esrange; Andenes
• Online Access: https://hal.science/hal-00317224; https://hal.science/hal-00317224/document; https://hal.science/hal-00317224/file/angeo-22-367-2004.pdf

International audience The "Scandinavian Triangle" is a unique trio of radars within the DATAR Project (Dynamics and Temperatures from the Arctic MLT (60?97km) region): Andenes MF radar (69°N, 16°E); Tromsø MF radar (70°N, 19°E) and Esrange "Meteor" radar (68°N, 21°E). The radar-spacings range from 125-270km, making it unique for studies of wind variability associated with small-scale waves, comparisons of large-scale waves measured over small spacings, and for comparisons of winds from different radar systems. As such it complements results from arrays having spacings of 25km and 500km that have been located near Saskatoon. Correlation analysis is used to demonstrate a speed bias (MF smaller than the Meteor) between the radar types, which varies with season and altitude. Annual climatologies for the year 2000 of mean winds, solar tides, planetary and gravity waves are presented, and show indications of significant spatial variability across the Triangle and of differences in wave characteristics from middle latitudes. Key words: Meteorology and atmospheric dynamics (middle atmosphere dynamics; waves and tides: instrument and techniques)