Horizontally resolved structures of radar backscatter from polar mesospheric layers
-
Published:2012-09-19
Issue:
Volume:10
Page:285-290
-
ISSN:1684-9973
-
Container-title:Advances in Radio Science
-
language:en
-
Short-container-title:Adv. Radio Sci.
Author:
Latteck R.,Singer W.,Rapp M.,Renkwitz T.,Stober G.
Abstract
Abstract. The Leibniz-Institute of Atmospheric Physics in Kühlungsborn, Germany (IAP) installed a new powerful VHF radar on the North-Norwegian island Andøya (69.30° N, 16.04° E) from 2009 to 2011. The new Middle Atmosphere Alomar Radar System (MAARSY) replaces the existing ALWIN radar which has been in continuous operation on Andøya for more than 10 yr. MAARSY is a monostatic radar operated at 53.5 MHz with an active phased array antenna consisting of 433 Yagi antennas each connected to its own transceiver with independent control of frequency, phase and power of the transmitted signal. This arrangement provides a very high flexibility of beam forming and beam steering. It allows classical beam swinging operation as well as experiments with simultaneous multiple beams and the use of modern interferometric applications for improved studies of the Arctic atmosphere from the troposphere up to the lower thermosphere with high spatial-temporal resolution. The installation of the antenna was completed in August 2009. An initial expansion stage of 196 transceiver modules was installed in spring 2010, upgraded to 343 transceiver modules in December 2010 and the installation of the radar was completed in spring 2011. Beside standard observations of tropospheric winds and Polar Mesosphere Summer Echoes, multi-beam experiments using up to 91 beams quasi-simultaneously in the mesosphere have been carried out using the different expansion stages of the system during campaigns in 2010 and 2011. These results provided a first insight into the horizontal variability of Polar Mesosphere Summer and Winter Echoes in an area of about 80 km by 80 km with time resolutions between 3 and 9 min.
Publisher
Copernicus GmbH
Reference11 articles.
1. Czechowsky, P., Rüster, R., and Schmidt, G.: Variations of mesospheric structures in different seasons, Geophys. Res. Lett., 6, 459–462, 1979. 2. Ecklund, W L. and Balsley, B B.: Long-term observations of the Arctic mesosphere with the MST radar at Poker Flat, Alaska, J. Geophys. Res., 86, 7775–7780, 1981. 3. Kirkwood, S., Barabash, V., Belova, E., Nilsson, H., Rao, T N., Stebel, K., Osepian, A., and Chilson, P B.: Polar Mesosphere Winter Echoes during Solar Proton Events, Adv. Polar Upper Atmos. Res., 16, 111–125, 2002. 4. Kirkwood, S., Chilson, P., Belova, E., Dalin, P., Häggström, I., Rietveld, M., and Singer, W.: Infrasound – the cause of strong Polar Mesosphere Winter Echoes?, Ann. Geophys., 24, 475–491, https://doi.org/10.5194/angeo-24-475-2006, 2006. 5. Latteck, R., Singer, W., Rapp, M., and Renkwitz, T.: MAARSY – the new MST radar on Andøya/Norway, Adv. Radio Sci., 8, 219–224, https://doi.org/10.5194/ars-8-219-2010, 2010.
Cited by
8 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献
|
|