Observations of surface radiation and stratospheric processes at Thule Air Base, Greenland, during the IPY
Ground-based measurements of atmospheric parameters have been carried out for more than 20 years at the Network for the Detection of Atmospheric Composition Change (NDACC) station at Thule Air Base (76.5°N, 68.8°W), on the north-western coast of Greenland. Various instruments dedicated to the study...
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Istituto Nazionale di Geofisica e Vulcanologia (INGV)
2014
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ftdoajarticles:oai:doaj.org/article:d159d82d239e4b0faa082bd969c20182 2023-05-15T13:11:23+02:00 Observations of surface radiation and stratospheric processes at Thule Air Base, Greenland, during the IPY Giovanni Muscari Claudia Di Biagio Alcide di Sarra Marco Cacciani Svend Erik Ascanius Pietro Paolo Bertagnolio Claudio Cesaroni Robert L. de Zafra Paul Eriksen Giorgio Fiocco Irene Fiorucci Daniele Fuà 2014-06-01T00:00:00Z https://doi.org/10.4401/ag-6382 https://doaj.org/article/d159d82d239e4b0faa082bd969c20182 EN eng Istituto Nazionale di Geofisica e Vulcanologia (INGV) http://www.annalsofgeophysics.eu/index.php/annals/article/view/6382 https://doaj.org/toc/1593-5213 https://doaj.org/toc/2037-416X 1593-5213 2037-416X doi:10.4401/ag-6382 https://doaj.org/article/d159d82d239e4b0faa082bd969c20182 Annals of Geophysics, Vol 57, Iss 3 (2014) Polar atmosphere NDACC Radiative budget Stratospheric ozone Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 article 2014 ftdoajarticles https://doi.org/10.4401/ag-6382 2022-12-30T21:59:54Z Ground-based measurements of atmospheric parameters have been carried out for more than 20 years at the Network for the Detection of Atmospheric Composition Change (NDACC) station at Thule Air Base (76.5°N, 68.8°W), on the north-western coast of Greenland. Various instruments dedicated to the study of the lower and middle polar atmosphere are installed at Thule in the framework of a long standing collaboration among Danish, Italian, and US research institutes and universities. This effort aims at monitoring the composition, structure and dynamics of the polar stratosphere, and at studying the Arctic energy budget and the role played by different factors, such as aerosols, water vapour, and surface albedo. During the International Polar Year (IPY), in winter 2008-2009, an intensive measurement campaign was conducted at Thule within the framework of the IPY project “Ozone layer and UV radiation in a changing climate evaluated during IPY” (ORACLE-O3) which sought to improve our understanding of the complex mechanisms that lead to the Arctic stratospheric O 3 depletion. The campaign involved a lidar system, measuring aerosol backscatter and depolarization ratios up to 35 km and atmospheric temperature profiles from 25 to 70 km altitude, a ground-based millimeter-wave spectrometer (GBMS) used to derive stratospheric mixing ratio profiles of different chemical species involved in the stratospheric ozone depletion cycle, and then ground-based radiometers and a Cimel sunphotometer to study the Arctic radiative budget at the surface. The observations show that the surface radiation budget is mainly regulated by the longwave component throughout most of the year. Clouds have a significant impact contributing to enhance the role of longwave radiation. Besides clouds, water vapour seasonal changes produce the largest modification in the shortwave component at the surface, followed by changes in surface albedo and in aerosol amounts. For what concerns the middle atmosphere, during the first part of winter 2008-2009 the cold ... Article in Journal/Newspaper albedo Arctic Greenland International Polar Year IPY Thule Air Thule Air Base Thule Directory of Open Access Journals: DOAJ Articles Arctic Greenland Thule Air Base ENVELOPE(-68.703,-68.703,76.531,76.531) Annals of Geophysics 57 3 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Polar atmosphere NDACC Radiative budget Stratospheric ozone Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 |
spellingShingle |
Polar atmosphere NDACC Radiative budget Stratospheric ozone Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 Giovanni Muscari Claudia Di Biagio Alcide di Sarra Marco Cacciani Svend Erik Ascanius Pietro Paolo Bertagnolio Claudio Cesaroni Robert L. de Zafra Paul Eriksen Giorgio Fiocco Irene Fiorucci Daniele Fuà Observations of surface radiation and stratospheric processes at Thule Air Base, Greenland, during the IPY |
topic_facet |
Polar atmosphere NDACC Radiative budget Stratospheric ozone Meteorology. Climatology QC851-999 Geophysics. Cosmic physics QC801-809 |
description |
Ground-based measurements of atmospheric parameters have been carried out for more than 20 years at the Network for the Detection of Atmospheric Composition Change (NDACC) station at Thule Air Base (76.5°N, 68.8°W), on the north-western coast of Greenland. Various instruments dedicated to the study of the lower and middle polar atmosphere are installed at Thule in the framework of a long standing collaboration among Danish, Italian, and US research institutes and universities. This effort aims at monitoring the composition, structure and dynamics of the polar stratosphere, and at studying the Arctic energy budget and the role played by different factors, such as aerosols, water vapour, and surface albedo. During the International Polar Year (IPY), in winter 2008-2009, an intensive measurement campaign was conducted at Thule within the framework of the IPY project “Ozone layer and UV radiation in a changing climate evaluated during IPY” (ORACLE-O3) which sought to improve our understanding of the complex mechanisms that lead to the Arctic stratospheric O 3 depletion. The campaign involved a lidar system, measuring aerosol backscatter and depolarization ratios up to 35 km and atmospheric temperature profiles from 25 to 70 km altitude, a ground-based millimeter-wave spectrometer (GBMS) used to derive stratospheric mixing ratio profiles of different chemical species involved in the stratospheric ozone depletion cycle, and then ground-based radiometers and a Cimel sunphotometer to study the Arctic radiative budget at the surface. The observations show that the surface radiation budget is mainly regulated by the longwave component throughout most of the year. Clouds have a significant impact contributing to enhance the role of longwave radiation. Besides clouds, water vapour seasonal changes produce the largest modification in the shortwave component at the surface, followed by changes in surface albedo and in aerosol amounts. For what concerns the middle atmosphere, during the first part of winter 2008-2009 the cold ... |
format |
Article in Journal/Newspaper |
author |
Giovanni Muscari Claudia Di Biagio Alcide di Sarra Marco Cacciani Svend Erik Ascanius Pietro Paolo Bertagnolio Claudio Cesaroni Robert L. de Zafra Paul Eriksen Giorgio Fiocco Irene Fiorucci Daniele Fuà |
author_facet |
Giovanni Muscari Claudia Di Biagio Alcide di Sarra Marco Cacciani Svend Erik Ascanius Pietro Paolo Bertagnolio Claudio Cesaroni Robert L. de Zafra Paul Eriksen Giorgio Fiocco Irene Fiorucci Daniele Fuà |
author_sort |
Giovanni Muscari |
title |
Observations of surface radiation and stratospheric processes at Thule Air Base, Greenland, during the IPY |
title_short |
Observations of surface radiation and stratospheric processes at Thule Air Base, Greenland, during the IPY |
title_full |
Observations of surface radiation and stratospheric processes at Thule Air Base, Greenland, during the IPY |
title_fullStr |
Observations of surface radiation and stratospheric processes at Thule Air Base, Greenland, during the IPY |
title_full_unstemmed |
Observations of surface radiation and stratospheric processes at Thule Air Base, Greenland, during the IPY |
title_sort |
observations of surface radiation and stratospheric processes at thule air base, greenland, during the ipy |
publisher |
Istituto Nazionale di Geofisica e Vulcanologia (INGV) |
publishDate |
2014 |
url |
https://doi.org/10.4401/ag-6382 https://doaj.org/article/d159d82d239e4b0faa082bd969c20182 |
long_lat |
ENVELOPE(-68.703,-68.703,76.531,76.531) |
geographic |
Arctic Greenland Thule Air Base |
geographic_facet |
Arctic Greenland Thule Air Base |
genre |
albedo Arctic Greenland International Polar Year IPY Thule Air Thule Air Base Thule |
genre_facet |
albedo Arctic Greenland International Polar Year IPY Thule Air Thule Air Base Thule |
op_source |
Annals of Geophysics, Vol 57, Iss 3 (2014) |
op_relation |
http://www.annalsofgeophysics.eu/index.php/annals/article/view/6382 https://doaj.org/toc/1593-5213 https://doaj.org/toc/2037-416X 1593-5213 2037-416X doi:10.4401/ag-6382 https://doaj.org/article/d159d82d239e4b0faa082bd969c20182 |
op_doi |
https://doi.org/10.4401/ag-6382 |
container_title |
Annals of Geophysics |
container_volume |
57 |
container_issue |
3 |
_version_ |
1766247170725380096 |