Evaluation of Sun photometer capabilities for the retrievals of aerosol optical depth at high latitudes: the POLAR-AOD intercomparison campaigns
Accuracy requirements for aerosol optical depth (AOD) in polar regions are much more stringent than those usually encountered in established sun photometer networks, while comparability of data from different archive centres is a further important issue. Therefore, two intercomparison campaigns were...
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Online Access: | https://epic.awi.de/id/eprint/24681/ https://epic.awi.de/id/eprint/24681/1/Mazzola-Atm-Env-2011.pdf https://hdl.handle.net/10013/epic.39622 https://hdl.handle.net/10013/epic.39622.d001 |
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ftawi:oai:epic.awi.de:24681 2023-05-15T13:46:51+02:00 Evaluation of Sun photometer capabilities for the retrievals of aerosol optical depth at high latitudes: the POLAR-AOD intercomparison campaigns Mazzola, M. Lupi, A. Vitale, V. Tomasi, C. Stone, R. S. Herber, Andreas Toledano, C. Cachorro, V. E. Torres, B. Berfon, A. Orziz, J. P. O'Neill, N. T. Masataka, S. Stebel, K. Aaltonen, V. Zielinski, T. Petelski, T. Goloub, P. Blarel, L. Li, Z. Abboud, I. Cuevas, E. Stock, Maria Schulz, K. H. Virkkula, A. 2011 application/pdf https://epic.awi.de/id/eprint/24681/ https://epic.awi.de/id/eprint/24681/1/Mazzola-Atm-Env-2011.pdf https://hdl.handle.net/10013/epic.39622 https://hdl.handle.net/10013/epic.39622.d001 unknown ELSEVIER https://epic.awi.de/id/eprint/24681/1/Mazzola-Atm-Env-2011.pdf https://hdl.handle.net/10013/epic.39622.d001 Mazzola, M. , Lupi, A. , Vitale, V. , Tomasi, C. , Stone, R. S. , Herber, A. orcid:0000-0001-6651-3835 , Toledano, C. , Cachorro, V. E. , Torres, B. , Berfon, A. , Orziz, J. P. , O'Neill, N. T. , Masataka, S. , Stebel, K. , Aaltonen, V. , Zielinski, T. , Petelski, T. , Goloub, P. , Blarel, L. , Li, Z. , Abboud, I. , Cuevas, E. , Stock, M. , Schulz, K. H. and Virkkula, A. (2011) Evaluation of Sun photometer capabilities for the retrievals of aerosol optical depth at high latitudes: the POLAR-AOD intercomparison campaigns , Atmospheric Environment., 51 , pp. 1-14 . doi:10.1016/j.atmosenv.2011.07.042 <https://doi.org/10.1016/j.atmosenv.2011.07.042> , hdl:10013/epic.39622 EPIC3Atmospheric Environment., ELSEVIER, 51, pp. 1-14 Article isiRev 2011 ftawi https://doi.org/10.1016/j.atmosenv.2011.07.042 2021-12-24T15:35:11Z Accuracy requirements for aerosol optical depth (AOD) in polar regions are much more stringent than those usually encountered in established sun photometer networks, while comparability of data from different archive centres is a further important issue. Therefore, two intercomparison campaigns were held during spring 2006 at Ny-Ålesund (Svalbard) and autumn 2008 at Izaña (Tenerife) within the framework of the IPY POLAR-AOD project, with the participation of various research institutions routinely employing different instrument models at Arctic and Antarctic stations. As reported here, a common algorithm was used for data analysis with the aim of minimizing a large part of the discrepancies affecting the previous studies. During the Ny-Ålesund campaign, spectral values of AOD derived from measurements taken with different instruments were found to agree, presenting at both 500 nm and 870 nm wavelengths average values of root mean square difference (RMSD) and standard deviation of the difference (SDD) equal to 0.003. Correspondingly, the mean bias difference (MBD) varied mainly between ␣0.003 and þ0.003 at 500 nm, and between ␣0.004 and þ0.003 at 870 nm. During the Izaña campaign, which was also intended as an intercalibration opportunity, RMSD and SDD values were estimated to be equal to 0.002 for both channels on average, with MBD ranging between ␣0.004 and þ0.004 at 500 nm and between ␣0.002 and þ0.003 at 870 nm. RMSD and SDD values for Ångström exponent a were estimated equal to 0.06 during the Ny-Ålesund campaign and 0.39 at Izaña. The results confirmed that sun photometry is a valid technique for aerosol monitoring in the pristine atmospheric turbidity conditions usually observed at high latitudes. Article in Journal/Newspaper Antarc* Antarctic Arctic IPY Ny Ålesund Ny-Ålesund Svalbard Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) Antarctic Arctic Ny-Ålesund Svalbard Atmospheric Environment 52 4 17 |
institution |
Open Polar |
collection |
Alfred Wegener Institute for Polar- and Marine Research (AWI): ePIC (electronic Publication Information Center) |
op_collection_id |
ftawi |
language |
unknown |
description |
Accuracy requirements for aerosol optical depth (AOD) in polar regions are much more stringent than those usually encountered in established sun photometer networks, while comparability of data from different archive centres is a further important issue. Therefore, two intercomparison campaigns were held during spring 2006 at Ny-Ålesund (Svalbard) and autumn 2008 at Izaña (Tenerife) within the framework of the IPY POLAR-AOD project, with the participation of various research institutions routinely employing different instrument models at Arctic and Antarctic stations. As reported here, a common algorithm was used for data analysis with the aim of minimizing a large part of the discrepancies affecting the previous studies. During the Ny-Ålesund campaign, spectral values of AOD derived from measurements taken with different instruments were found to agree, presenting at both 500 nm and 870 nm wavelengths average values of root mean square difference (RMSD) and standard deviation of the difference (SDD) equal to 0.003. Correspondingly, the mean bias difference (MBD) varied mainly between ␣0.003 and þ0.003 at 500 nm, and between ␣0.004 and þ0.003 at 870 nm. During the Izaña campaign, which was also intended as an intercalibration opportunity, RMSD and SDD values were estimated to be equal to 0.002 for both channels on average, with MBD ranging between ␣0.004 and þ0.004 at 500 nm and between ␣0.002 and þ0.003 at 870 nm. RMSD and SDD values for Ångström exponent a were estimated equal to 0.06 during the Ny-Ålesund campaign and 0.39 at Izaña. The results confirmed that sun photometry is a valid technique for aerosol monitoring in the pristine atmospheric turbidity conditions usually observed at high latitudes. |
format |
Article in Journal/Newspaper |
author |
Mazzola, M. Lupi, A. Vitale, V. Tomasi, C. Stone, R. S. Herber, Andreas Toledano, C. Cachorro, V. E. Torres, B. Berfon, A. Orziz, J. P. O'Neill, N. T. Masataka, S. Stebel, K. Aaltonen, V. Zielinski, T. Petelski, T. Goloub, P. Blarel, L. Li, Z. Abboud, I. Cuevas, E. Stock, Maria Schulz, K. H. Virkkula, A. |
spellingShingle |
Mazzola, M. Lupi, A. Vitale, V. Tomasi, C. Stone, R. S. Herber, Andreas Toledano, C. Cachorro, V. E. Torres, B. Berfon, A. Orziz, J. P. O'Neill, N. T. Masataka, S. Stebel, K. Aaltonen, V. Zielinski, T. Petelski, T. Goloub, P. Blarel, L. Li, Z. Abboud, I. Cuevas, E. Stock, Maria Schulz, K. H. Virkkula, A. Evaluation of Sun photometer capabilities for the retrievals of aerosol optical depth at high latitudes: the POLAR-AOD intercomparison campaigns |
author_facet |
Mazzola, M. Lupi, A. Vitale, V. Tomasi, C. Stone, R. S. Herber, Andreas Toledano, C. Cachorro, V. E. Torres, B. Berfon, A. Orziz, J. P. O'Neill, N. T. Masataka, S. Stebel, K. Aaltonen, V. Zielinski, T. Petelski, T. Goloub, P. Blarel, L. Li, Z. Abboud, I. Cuevas, E. Stock, Maria Schulz, K. H. Virkkula, A. |
author_sort |
Mazzola, M. |
title |
Evaluation of Sun photometer capabilities for the retrievals of aerosol optical depth at high latitudes: the POLAR-AOD intercomparison campaigns |
title_short |
Evaluation of Sun photometer capabilities for the retrievals of aerosol optical depth at high latitudes: the POLAR-AOD intercomparison campaigns |
title_full |
Evaluation of Sun photometer capabilities for the retrievals of aerosol optical depth at high latitudes: the POLAR-AOD intercomparison campaigns |
title_fullStr |
Evaluation of Sun photometer capabilities for the retrievals of aerosol optical depth at high latitudes: the POLAR-AOD intercomparison campaigns |
title_full_unstemmed |
Evaluation of Sun photometer capabilities for the retrievals of aerosol optical depth at high latitudes: the POLAR-AOD intercomparison campaigns |
title_sort |
evaluation of sun photometer capabilities for the retrievals of aerosol optical depth at high latitudes: the polar-aod intercomparison campaigns |
publisher |
ELSEVIER |
publishDate |
2011 |
url |
https://epic.awi.de/id/eprint/24681/ https://epic.awi.de/id/eprint/24681/1/Mazzola-Atm-Env-2011.pdf https://hdl.handle.net/10013/epic.39622 https://hdl.handle.net/10013/epic.39622.d001 |
geographic |
Antarctic Arctic Ny-Ålesund Svalbard |
geographic_facet |
Antarctic Arctic Ny-Ålesund Svalbard |
genre |
Antarc* Antarctic Arctic IPY Ny Ålesund Ny-Ålesund Svalbard |
genre_facet |
Antarc* Antarctic Arctic IPY Ny Ålesund Ny-Ålesund Svalbard |
op_source |
EPIC3Atmospheric Environment., ELSEVIER, 51, pp. 1-14 |
op_relation |
https://epic.awi.de/id/eprint/24681/1/Mazzola-Atm-Env-2011.pdf https://hdl.handle.net/10013/epic.39622.d001 Mazzola, M. , Lupi, A. , Vitale, V. , Tomasi, C. , Stone, R. S. , Herber, A. orcid:0000-0001-6651-3835 , Toledano, C. , Cachorro, V. E. , Torres, B. , Berfon, A. , Orziz, J. P. , O'Neill, N. T. , Masataka, S. , Stebel, K. , Aaltonen, V. , Zielinski, T. , Petelski, T. , Goloub, P. , Blarel, L. , Li, Z. , Abboud, I. , Cuevas, E. , Stock, M. , Schulz, K. H. and Virkkula, A. (2011) Evaluation of Sun photometer capabilities for the retrievals of aerosol optical depth at high latitudes: the POLAR-AOD intercomparison campaigns , Atmospheric Environment., 51 , pp. 1-14 . doi:10.1016/j.atmosenv.2011.07.042 <https://doi.org/10.1016/j.atmosenv.2011.07.042> , hdl:10013/epic.39622 |
op_doi |
https://doi.org/10.1016/j.atmosenv.2011.07.042 |
container_title |
Atmospheric Environment |
container_volume |
52 |
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4 |
op_container_end_page |
17 |
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1766245332078821376 |