Observing wind, aerosol particles, cloud and precipitation: Finland's new ground-based remote-sensing network
The Finnish Meteorological Institute, in collaboration with the University of Helsinki, has established a new ground-based remote-sensing network in Finland. The network consists of five topographically, ecologically and climatically different sites distributed from southern to northern Finland. The...
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ftdoajarticles:oai:doaj.org/article:c0ce83f4219c4223a525442393782413 2023-05-15T17:42:50+02:00 Observing wind, aerosol particles, cloud and precipitation: Finland's new ground-based remote-sensing network A. Hirsikko E. J. O'Connor M. Komppula K. Korhonen A. Pfüller E. Giannakaki C. R. Wood M. Bauer-Pfundstein A. Poikonen T. Karppinen H. Lonka M. Kurri J. Heinonen D. Moisseev E. Asmi V. Aaltonen A. Nordbo E. Rodriguez H. Lihavainen A. Laaksonen K. E. J. Lehtinen T. Laurila T. Petäjä M. Kulmala Y. Viisanen 2014-05-01T00:00:00Z https://doi.org/10.5194/amt-7-1351-2014 https://doaj.org/article/c0ce83f4219c4223a525442393782413 EN eng Copernicus Publications http://www.atmos-meas-tech.net/7/1351/2014/amt-7-1351-2014.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 1867-1381 1867-8548 doi:10.5194/amt-7-1351-2014 https://doaj.org/article/c0ce83f4219c4223a525442393782413 Atmospheric Measurement Techniques, Vol 7, Iss 5, Pp 1351-1375 (2014) Environmental engineering TA170-171 Earthwork. Foundations TA715-787 article 2014 ftdoajarticles https://doi.org/10.5194/amt-7-1351-2014 2022-12-31T06:22:01Z The Finnish Meteorological Institute, in collaboration with the University of Helsinki, has established a new ground-based remote-sensing network in Finland. The network consists of five topographically, ecologically and climatically different sites distributed from southern to northern Finland. The main goal of the network is to monitor air pollution and boundary layer properties in near real time, with a Doppler lidar and ceilometer at each site. In addition to these operational tasks, two sites are members of the Aerosols, Clouds and Trace gases Research InfraStructure Network (ACTRIS); a K a band cloud radar at Sodankylä will provide cloud retrievals within CloudNet, and a multi-wavelength Raman lidar, Polly XT (POrtabLe Lidar sYstem eXTended), in Kuopio provides optical and microphysical aerosol properties through EARLINET (the European Aerosol Research Lidar Network). Three C-band weather radars are located in the Helsinki metropolitan area and are deployed for operational and research applications. We performed two inter-comparison campaigns to investigate the Doppler lidar performance, compare the backscatter signal and wind profiles, and to optimize the lidar sensitivity through adjusting the telescope focus length and data-integration time to ensure sufficient signal-to-noise ratio (SNR) in low-aerosol-content environments. In terms of statistical characterization, the wind-profile comparison showed good agreement between different lidars. Initially, there was a discrepancy in the SNR and attenuated backscatter coefficient profiles which arose from an incorrectly reported telescope focus setting from one instrument, together with the need to calibrate. After diagnosing the true telescope focus length, calculating a new attenuated backscatter coefficient profile with the new telescope function and taking into account calibration, the resulting attenuated backscatter profiles all showed good agreement with each other. It was thought that harsh Finnish winters could pose problems, but, due to the built-in ... Article in Journal/Newspaper Northern Finland Sodankylä Directory of Open Access Journals: DOAJ Articles Sodankylä ENVELOPE(26.600,26.600,67.417,67.417) New Ground ENVELOPE(-55.215,-55.215,49.567,49.567) Atmospheric Measurement Techniques 7 5 1351 1375 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
spellingShingle |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 A. Hirsikko E. J. O'Connor M. Komppula K. Korhonen A. Pfüller E. Giannakaki C. R. Wood M. Bauer-Pfundstein A. Poikonen T. Karppinen H. Lonka M. Kurri J. Heinonen D. Moisseev E. Asmi V. Aaltonen A. Nordbo E. Rodriguez H. Lihavainen A. Laaksonen K. E. J. Lehtinen T. Laurila T. Petäjä M. Kulmala Y. Viisanen Observing wind, aerosol particles, cloud and precipitation: Finland's new ground-based remote-sensing network |
topic_facet |
Environmental engineering TA170-171 Earthwork. Foundations TA715-787 |
description |
The Finnish Meteorological Institute, in collaboration with the University of Helsinki, has established a new ground-based remote-sensing network in Finland. The network consists of five topographically, ecologically and climatically different sites distributed from southern to northern Finland. The main goal of the network is to monitor air pollution and boundary layer properties in near real time, with a Doppler lidar and ceilometer at each site. In addition to these operational tasks, two sites are members of the Aerosols, Clouds and Trace gases Research InfraStructure Network (ACTRIS); a K a band cloud radar at Sodankylä will provide cloud retrievals within CloudNet, and a multi-wavelength Raman lidar, Polly XT (POrtabLe Lidar sYstem eXTended), in Kuopio provides optical and microphysical aerosol properties through EARLINET (the European Aerosol Research Lidar Network). Three C-band weather radars are located in the Helsinki metropolitan area and are deployed for operational and research applications. We performed two inter-comparison campaigns to investigate the Doppler lidar performance, compare the backscatter signal and wind profiles, and to optimize the lidar sensitivity through adjusting the telescope focus length and data-integration time to ensure sufficient signal-to-noise ratio (SNR) in low-aerosol-content environments. In terms of statistical characterization, the wind-profile comparison showed good agreement between different lidars. Initially, there was a discrepancy in the SNR and attenuated backscatter coefficient profiles which arose from an incorrectly reported telescope focus setting from one instrument, together with the need to calibrate. After diagnosing the true telescope focus length, calculating a new attenuated backscatter coefficient profile with the new telescope function and taking into account calibration, the resulting attenuated backscatter profiles all showed good agreement with each other. It was thought that harsh Finnish winters could pose problems, but, due to the built-in ... |
format |
Article in Journal/Newspaper |
author |
A. Hirsikko E. J. O'Connor M. Komppula K. Korhonen A. Pfüller E. Giannakaki C. R. Wood M. Bauer-Pfundstein A. Poikonen T. Karppinen H. Lonka M. Kurri J. Heinonen D. Moisseev E. Asmi V. Aaltonen A. Nordbo E. Rodriguez H. Lihavainen A. Laaksonen K. E. J. Lehtinen T. Laurila T. Petäjä M. Kulmala Y. Viisanen |
author_facet |
A. Hirsikko E. J. O'Connor M. Komppula K. Korhonen A. Pfüller E. Giannakaki C. R. Wood M. Bauer-Pfundstein A. Poikonen T. Karppinen H. Lonka M. Kurri J. Heinonen D. Moisseev E. Asmi V. Aaltonen A. Nordbo E. Rodriguez H. Lihavainen A. Laaksonen K. E. J. Lehtinen T. Laurila T. Petäjä M. Kulmala Y. Viisanen |
author_sort |
A. Hirsikko |
title |
Observing wind, aerosol particles, cloud and precipitation: Finland's new ground-based remote-sensing network |
title_short |
Observing wind, aerosol particles, cloud and precipitation: Finland's new ground-based remote-sensing network |
title_full |
Observing wind, aerosol particles, cloud and precipitation: Finland's new ground-based remote-sensing network |
title_fullStr |
Observing wind, aerosol particles, cloud and precipitation: Finland's new ground-based remote-sensing network |
title_full_unstemmed |
Observing wind, aerosol particles, cloud and precipitation: Finland's new ground-based remote-sensing network |
title_sort |
observing wind, aerosol particles, cloud and precipitation: finland's new ground-based remote-sensing network |
publisher |
Copernicus Publications |
publishDate |
2014 |
url |
https://doi.org/10.5194/amt-7-1351-2014 https://doaj.org/article/c0ce83f4219c4223a525442393782413 |
long_lat |
ENVELOPE(26.600,26.600,67.417,67.417) ENVELOPE(-55.215,-55.215,49.567,49.567) |
geographic |
Sodankylä New Ground |
geographic_facet |
Sodankylä New Ground |
genre |
Northern Finland Sodankylä |
genre_facet |
Northern Finland Sodankylä |
op_source |
Atmospheric Measurement Techniques, Vol 7, Iss 5, Pp 1351-1375 (2014) |
op_relation |
http://www.atmos-meas-tech.net/7/1351/2014/amt-7-1351-2014.pdf https://doaj.org/toc/1867-1381 https://doaj.org/toc/1867-8548 1867-1381 1867-8548 doi:10.5194/amt-7-1351-2014 https://doaj.org/article/c0ce83f4219c4223a525442393782413 |
op_doi |
https://doi.org/10.5194/amt-7-1351-2014 |
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Atmospheric Measurement Techniques |
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