The ALOMAR Rayleigh/Mie/Raman lidar: status after 30 years of operation
The ALOMAR Rayleigh/Mie/Raman (RMR) lidar is an active remote sensing instrument for investigation of the Arctic middle atmosphere on a routine basis during day and night. It was installed on the island of Andøya in Northern Norway (69° N, 16° E) in summer 1994. During the...
Main Authors: | , |
---|---|
Format: | Text |
Language: | English |
Published: |
2024
|
Subjects: | |
Online Access: | https://doi.org/10.5194/amt-2024-31 https://amt.copernicus.org/preprints/amt-2024-31/ |
id |
ftcopernicus:oai:publications.copernicus.org:amtd118418 |
---|---|
record_format |
openpolar |
spelling |
ftcopernicus:oai:publications.copernicus.org:amtd118418 2024-06-23T07:50:33+00:00 The ALOMAR Rayleigh/Mie/Raman lidar: status after 30 years of operation Fiedler, Jens Baumgarten, Gerd 2024-04-29 application/pdf https://doi.org/10.5194/amt-2024-31 https://amt.copernicus.org/preprints/amt-2024-31/ eng eng doi:10.5194/amt-2024-31 https://amt.copernicus.org/preprints/amt-2024-31/ eISSN: 1867-8548 Text 2024 ftcopernicus https://doi.org/10.5194/amt-2024-31 2024-06-13T01:24:45Z The ALOMAR Rayleigh/Mie/Raman (RMR) lidar is an active remote sensing instrument for investigation of the Arctic middle atmosphere on a routine basis during day and night. It was installed on the island of Andøya in Northern Norway (69° N, 16° E) in summer 1994. During the past 30 years of operation, more than 20,200 hours of atmospheric data were measured, approx. 60 % thereof during sunlit conditions. At present, the RMR lidar is the only system measuring aerosols, temperature, and horizontal winds simultaneously and during daytime in the middle atmosphere. We report on the current status of the lidar, including major upgrades made during recent years. This involves a new generation of power lasers and new systems for synchronization, data acquisition, and spectral monitoring of each single laser pulse. Lidar measurements benefit significantly from a control system for augmented operation with automated rule-based decisions, which allows complete remote operation of the lidar. This was necessary in particular during the COVID-19-pandemic, as it was impossible to access the lidar from outside Norway for almost 1.5 years. We show examples that illustrate the performance of the RMR lidar in investigating aerosol layers, temperature as well as horizontal winds, partly with a time resolution below one second. Text Arctic Northern Norway Copernicus Publications: E-Journals Alomar ENVELOPE(-67.083,-67.083,-68.133,-68.133) Arctic Norway |
institution |
Open Polar |
collection |
Copernicus Publications: E-Journals |
op_collection_id |
ftcopernicus |
language |
English |
description |
The ALOMAR Rayleigh/Mie/Raman (RMR) lidar is an active remote sensing instrument for investigation of the Arctic middle atmosphere on a routine basis during day and night. It was installed on the island of Andøya in Northern Norway (69° N, 16° E) in summer 1994. During the past 30 years of operation, more than 20,200 hours of atmospheric data were measured, approx. 60 % thereof during sunlit conditions. At present, the RMR lidar is the only system measuring aerosols, temperature, and horizontal winds simultaneously and during daytime in the middle atmosphere. We report on the current status of the lidar, including major upgrades made during recent years. This involves a new generation of power lasers and new systems for synchronization, data acquisition, and spectral monitoring of each single laser pulse. Lidar measurements benefit significantly from a control system for augmented operation with automated rule-based decisions, which allows complete remote operation of the lidar. This was necessary in particular during the COVID-19-pandemic, as it was impossible to access the lidar from outside Norway for almost 1.5 years. We show examples that illustrate the performance of the RMR lidar in investigating aerosol layers, temperature as well as horizontal winds, partly with a time resolution below one second. |
format |
Text |
author |
Fiedler, Jens Baumgarten, Gerd |
spellingShingle |
Fiedler, Jens Baumgarten, Gerd The ALOMAR Rayleigh/Mie/Raman lidar: status after 30 years of operation |
author_facet |
Fiedler, Jens Baumgarten, Gerd |
author_sort |
Fiedler, Jens |
title |
The ALOMAR Rayleigh/Mie/Raman lidar: status after 30 years of operation |
title_short |
The ALOMAR Rayleigh/Mie/Raman lidar: status after 30 years of operation |
title_full |
The ALOMAR Rayleigh/Mie/Raman lidar: status after 30 years of operation |
title_fullStr |
The ALOMAR Rayleigh/Mie/Raman lidar: status after 30 years of operation |
title_full_unstemmed |
The ALOMAR Rayleigh/Mie/Raman lidar: status after 30 years of operation |
title_sort |
alomar rayleigh/mie/raman lidar: status after 30 years of operation |
publishDate |
2024 |
url |
https://doi.org/10.5194/amt-2024-31 https://amt.copernicus.org/preprints/amt-2024-31/ |
long_lat |
ENVELOPE(-67.083,-67.083,-68.133,-68.133) |
geographic |
Alomar Arctic Norway |
geographic_facet |
Alomar Arctic Norway |
genre |
Arctic Northern Norway |
genre_facet |
Arctic Northern Norway |
op_source |
eISSN: 1867-8548 |
op_relation |
doi:10.5194/amt-2024-31 https://amt.copernicus.org/preprints/amt-2024-31/ |
op_doi |
https://doi.org/10.5194/amt-2024-31 |
_version_ |
1802641462334062592 |