Validation of the radiation pattern of the Middle Atmosphere Alomar Radar System (MAARSY)
In 2009/2010 the Leibniz-Institute of Atmospheric Physics (IAP) installed a new powerful VHF radar on the island Andøya in Northern Norway (69.30 N, 16.04 E). The Middle Atmosphere Alomar Radar System (MAARSY) allows studies with high spatial and temporal resolution in the troposphere/lower stratosp...
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ftleibnizopen:oai:oai.leibnizopen.de:HBc9iIcBdbrxVwz60YDw 2023-06-06T11:43:23+02:00 Validation of the radiation pattern of the Middle Atmosphere Alomar Radar System (MAARSY) Renkwitz, T. Singer, W. Latteck, R. Stober, G. Rapp, M. 2012 application/pdf https://doi.org/10.34657/4225 https://oa.tib.eu/renate/handle/123456789/5596 eng eng Göttingen : Copernicus CC BY 3.0 Unported https://creativecommons.org/licenses/by/3.0/ Advances in Radio Science 10 (2012) Active phased array antennas Arctic atmosphere Atmospheric physics Ground parameters Mesosphere/lower thermospheres Middle atmosphere Monostatic radar Spatial and temporal resolutions Antenna phased arrays Geophysics Radar systems Radio astronomy Antennas 550 article Text 2012 ftleibnizopen https://doi.org/10.34657/4225 2023-04-16T23:32:57Z In 2009/2010 the Leibniz-Institute of Atmospheric Physics (IAP) installed a new powerful VHF radar on the island Andøya in Northern Norway (69.30 N, 16.04 E). The Middle Atmosphere Alomar Radar System (MAARSY) allows studies with high spatial and temporal resolution in the troposphere/lower stratosphere and in the mesosphere/lower thermosphere of the Arctic atmosphere. The monostatic radar is operated at 53.5 MHz with an active phased array antenna consisting of 433 Yagi antennas. Each individual antenna is connected to its own transceiver with independent phase control and a scalable power output of up to 2 kW, which implies high flexibility of beam forming and beam steering. During the design phase of MAARSY several model studies have been carried out in order to estimate the radiation pattern for various combinations of beam forming and steering. However, parameters like mutual coupling, active impedance and ground parameters have an impact on the radiation pattern, but can hardly be measured. Hence, experiments need to be designed to verify the model results. For this purpose, the radar has occasionally been used in passive mode, monitoring the noise power received from both distinct cosmic noise sources like e.g. Cassiopeia A and Cygnus A, and the diffuse cosmic background noise. The analysis of the collected dataset enables us to verify beam forming and steering attempts. These results document the current status of the radar during its development and provide valuable information for further improvement. publishedVersion Article in Journal/Newspaper Andøya Arctic Northern Norway LeibnizOpen (The Leibniz Association) Alomar ENVELOPE(-67.083,-67.083,-68.133,-68.133) Andøya ENVELOPE(13.982,13.982,68.185,68.185) Arctic Norway |
institution |
Open Polar |
collection |
LeibnizOpen (The Leibniz Association) |
op_collection_id |
ftleibnizopen |
language |
English |
topic |
Active phased array antennas Arctic atmosphere Atmospheric physics Ground parameters Mesosphere/lower thermospheres Middle atmosphere Monostatic radar Spatial and temporal resolutions Antenna phased arrays Geophysics Radar systems Radio astronomy Antennas 550 |
spellingShingle |
Active phased array antennas Arctic atmosphere Atmospheric physics Ground parameters Mesosphere/lower thermospheres Middle atmosphere Monostatic radar Spatial and temporal resolutions Antenna phased arrays Geophysics Radar systems Radio astronomy Antennas 550 Renkwitz, T. Singer, W. Latteck, R. Stober, G. Rapp, M. Validation of the radiation pattern of the Middle Atmosphere Alomar Radar System (MAARSY) |
topic_facet |
Active phased array antennas Arctic atmosphere Atmospheric physics Ground parameters Mesosphere/lower thermospheres Middle atmosphere Monostatic radar Spatial and temporal resolutions Antenna phased arrays Geophysics Radar systems Radio astronomy Antennas 550 |
description |
In 2009/2010 the Leibniz-Institute of Atmospheric Physics (IAP) installed a new powerful VHF radar on the island Andøya in Northern Norway (69.30 N, 16.04 E). The Middle Atmosphere Alomar Radar System (MAARSY) allows studies with high spatial and temporal resolution in the troposphere/lower stratosphere and in the mesosphere/lower thermosphere of the Arctic atmosphere. The monostatic radar is operated at 53.5 MHz with an active phased array antenna consisting of 433 Yagi antennas. Each individual antenna is connected to its own transceiver with independent phase control and a scalable power output of up to 2 kW, which implies high flexibility of beam forming and beam steering. During the design phase of MAARSY several model studies have been carried out in order to estimate the radiation pattern for various combinations of beam forming and steering. However, parameters like mutual coupling, active impedance and ground parameters have an impact on the radiation pattern, but can hardly be measured. Hence, experiments need to be designed to verify the model results. For this purpose, the radar has occasionally been used in passive mode, monitoring the noise power received from both distinct cosmic noise sources like e.g. Cassiopeia A and Cygnus A, and the diffuse cosmic background noise. The analysis of the collected dataset enables us to verify beam forming and steering attempts. These results document the current status of the radar during its development and provide valuable information for further improvement. publishedVersion |
format |
Article in Journal/Newspaper |
author |
Renkwitz, T. Singer, W. Latteck, R. Stober, G. Rapp, M. |
author_facet |
Renkwitz, T. Singer, W. Latteck, R. Stober, G. Rapp, M. |
author_sort |
Renkwitz, T. |
title |
Validation of the radiation pattern of the Middle Atmosphere Alomar Radar System (MAARSY) |
title_short |
Validation of the radiation pattern of the Middle Atmosphere Alomar Radar System (MAARSY) |
title_full |
Validation of the radiation pattern of the Middle Atmosphere Alomar Radar System (MAARSY) |
title_fullStr |
Validation of the radiation pattern of the Middle Atmosphere Alomar Radar System (MAARSY) |
title_full_unstemmed |
Validation of the radiation pattern of the Middle Atmosphere Alomar Radar System (MAARSY) |
title_sort |
validation of the radiation pattern of the middle atmosphere alomar radar system (maarsy) |
publisher |
Göttingen : Copernicus |
publishDate |
2012 |
url |
https://doi.org/10.34657/4225 https://oa.tib.eu/renate/handle/123456789/5596 |
long_lat |
ENVELOPE(-67.083,-67.083,-68.133,-68.133) ENVELOPE(13.982,13.982,68.185,68.185) |
geographic |
Alomar Andøya Arctic Norway |
geographic_facet |
Alomar Andøya Arctic Norway |
genre |
Andøya Arctic Northern Norway |
genre_facet |
Andøya Arctic Northern Norway |
op_source |
Advances in Radio Science 10 (2012) |
op_rights |
CC BY 3.0 Unported https://creativecommons.org/licenses/by/3.0/ |
op_doi |
https://doi.org/10.34657/4225 |
_version_ |
1767954702944698368 |