Seasonal Variations of the Relative Optical Air Mass Function for Background Aerosol and Thin Cirrus Clouds at Arctic and Antarctic Sites
New calculations of the relative optical air mass function are made over the 0°–87° range of apparent solar zenith angle θ, for various vertical profiles of background aerosol, diamond dust and thin cirrus cloud particle extinction coefficient in the Arctic and Antarctic atmospheres. The calculation...
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ftawi:oai:epic.awi.de:44257 2024-09-15T17:41:09+00:00 Seasonal Variations of the Relative Optical Air Mass Function for Background Aerosol and Thin Cirrus Clouds at Arctic and Antarctic Sites Tomasi, Claudio Petkov, Boyan Mazzola, Mauro Ritter, Christoph di Sarra, Alcide G. di Iorio, Tatiana del Gusta, Massimo 2015 application/pdf https://epic.awi.de/id/eprint/44257/ https://epic.awi.de/id/eprint/44257/1/Tomasi_2015_airmass.pdf http://www.mdpi.com/2072-4292/7/6/7157 https://hdl.handle.net/10013/epic.50599 https://hdl.handle.net/10013/epic.50599.d001 unknown https://epic.awi.de/id/eprint/44257/1/Tomasi_2015_airmass.pdf https://hdl.handle.net/10013/epic.50599.d001 Tomasi, C. , Petkov, B. , Mazzola, M. , Ritter, C. , di Sarra, A. G. , di Iorio, T. and del Gusta, M. (2015) Seasonal Variations of the Relative Optical Air Mass Function for Background Aerosol and Thin Cirrus Clouds at Arctic and Antarctic Sites , Remote Sensing, 7 , pp. 7157-7180 . hdl:10013/epic.50599 EPIC3Remote Sensing, 7, pp. 7157-7180 Article isiRev 2015 ftawi 2024-06-24T04:17:43Z New calculations of the relative optical air mass function are made over the 0°–87° range of apparent solar zenith angle θ, for various vertical profiles of background aerosol, diamond dust and thin cirrus cloud particle extinction coefficient in the Arctic and Antarctic atmospheres. The calculations were carried out by following the Tomasi and Petkov (2014) procedure, in which the above-mentioned vertical profiles derived from lidar observations were used as weighting functions. Different sets of lidar measurements were examined, recorded using: (i) the Koldewey-Aerosol-Raman Lidar (KARL) system (AWI, Germany) at Ny-Ålesund (Spitsbergen, Svalbard) in January, April, July and October 2013; (ii) the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) satellite-based sensor over Barrow (Alaska), Eureka (Nunavut, Canada) and Sodankylä (northern Finland), and Neumayer III, Mario Zucchelli and Mirny coastal stations in Antarctica in the local summer months of the last two years; (iii) the National Institute of Optics (INO), National Council of Research (CNR) Antarctic lidar at Dome C on the Antarctic Plateau for a typical “diamond dust” case; and (iv) the KARL lidar at Ny-Ålesund and the University of Rome/National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) lidar at Thule (northwestern Greenland) for some cirrus cloud layers in the middle and upper troposphere. The relative optical air mass calculations are compared with those obtained by Tomasi and Petkov (2014) to define the seasonal changes produced by aerosol particles, diamond dust and cirrus clouds. The results indicate that the corresponding air mass functions generally decrease as angle θ increases with rates that are proportional to the increase in the pure aerosol, diamond dust and cirrus cloud particle optical thickness. Article in Journal/Newspaper Antarc* Antarctic Antarctica Arctic Barrow Eureka Greenland Northern Finland Nunavut Ny Ålesund Ny-Ålesund Sodankylä Svalbard Thule Alaska Spitsbergen Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
institution |
Open Polar |
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Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
New calculations of the relative optical air mass function are made over the 0°–87° range of apparent solar zenith angle θ, for various vertical profiles of background aerosol, diamond dust and thin cirrus cloud particle extinction coefficient in the Arctic and Antarctic atmospheres. The calculations were carried out by following the Tomasi and Petkov (2014) procedure, in which the above-mentioned vertical profiles derived from lidar observations were used as weighting functions. Different sets of lidar measurements were examined, recorded using: (i) the Koldewey-Aerosol-Raman Lidar (KARL) system (AWI, Germany) at Ny-Ålesund (Spitsbergen, Svalbard) in January, April, July and October 2013; (ii) the Cloud-Aerosol Lidar and Infrared Pathfinder Satellite Observations (CALIPSO) satellite-based sensor over Barrow (Alaska), Eureka (Nunavut, Canada) and Sodankylä (northern Finland), and Neumayer III, Mario Zucchelli and Mirny coastal stations in Antarctica in the local summer months of the last two years; (iii) the National Institute of Optics (INO), National Council of Research (CNR) Antarctic lidar at Dome C on the Antarctic Plateau for a typical “diamond dust” case; and (iv) the KARL lidar at Ny-Ålesund and the University of Rome/National Agency for New Technologies, Energy and Sustainable Economic Development (ENEA) lidar at Thule (northwestern Greenland) for some cirrus cloud layers in the middle and upper troposphere. The relative optical air mass calculations are compared with those obtained by Tomasi and Petkov (2014) to define the seasonal changes produced by aerosol particles, diamond dust and cirrus clouds. The results indicate that the corresponding air mass functions generally decrease as angle θ increases with rates that are proportional to the increase in the pure aerosol, diamond dust and cirrus cloud particle optical thickness. |
format |
Article in Journal/Newspaper |
author |
Tomasi, Claudio Petkov, Boyan Mazzola, Mauro Ritter, Christoph di Sarra, Alcide G. di Iorio, Tatiana del Gusta, Massimo |
spellingShingle |
Tomasi, Claudio Petkov, Boyan Mazzola, Mauro Ritter, Christoph di Sarra, Alcide G. di Iorio, Tatiana del Gusta, Massimo Seasonal Variations of the Relative Optical Air Mass Function for Background Aerosol and Thin Cirrus Clouds at Arctic and Antarctic Sites |
author_facet |
Tomasi, Claudio Petkov, Boyan Mazzola, Mauro Ritter, Christoph di Sarra, Alcide G. di Iorio, Tatiana del Gusta, Massimo |
author_sort |
Tomasi, Claudio |
title |
Seasonal Variations of the Relative Optical Air Mass Function for Background Aerosol and Thin Cirrus Clouds at Arctic and Antarctic Sites |
title_short |
Seasonal Variations of the Relative Optical Air Mass Function for Background Aerosol and Thin Cirrus Clouds at Arctic and Antarctic Sites |
title_full |
Seasonal Variations of the Relative Optical Air Mass Function for Background Aerosol and Thin Cirrus Clouds at Arctic and Antarctic Sites |
title_fullStr |
Seasonal Variations of the Relative Optical Air Mass Function for Background Aerosol and Thin Cirrus Clouds at Arctic and Antarctic Sites |
title_full_unstemmed |
Seasonal Variations of the Relative Optical Air Mass Function for Background Aerosol and Thin Cirrus Clouds at Arctic and Antarctic Sites |
title_sort |
seasonal variations of the relative optical air mass function for background aerosol and thin cirrus clouds at arctic and antarctic sites |
publishDate |
2015 |
url |
https://epic.awi.de/id/eprint/44257/ https://epic.awi.de/id/eprint/44257/1/Tomasi_2015_airmass.pdf http://www.mdpi.com/2072-4292/7/6/7157 https://hdl.handle.net/10013/epic.50599 https://hdl.handle.net/10013/epic.50599.d001 |
genre |
Antarc* Antarctic Antarctica Arctic Barrow Eureka Greenland Northern Finland Nunavut Ny Ålesund Ny-Ålesund Sodankylä Svalbard Thule Alaska Spitsbergen |
genre_facet |
Antarc* Antarctic Antarctica Arctic Barrow Eureka Greenland Northern Finland Nunavut Ny Ålesund Ny-Ålesund Sodankylä Svalbard Thule Alaska Spitsbergen |
op_source |
EPIC3Remote Sensing, 7, pp. 7157-7180 |
op_relation |
https://epic.awi.de/id/eprint/44257/1/Tomasi_2015_airmass.pdf https://hdl.handle.net/10013/epic.50599.d001 Tomasi, C. , Petkov, B. , Mazzola, M. , Ritter, C. , di Sarra, A. G. , di Iorio, T. and del Gusta, M. (2015) Seasonal Variations of the Relative Optical Air Mass Function for Background Aerosol and Thin Cirrus Clouds at Arctic and Antarctic Sites , Remote Sensing, 7 , pp. 7157-7180 . hdl:10013/epic.50599 |
_version_ |
1810487278444740608 |