Aerosol optical properties in Northern Norway and Svalbard
| Autor: | Piotr Sobolewski, Kerstin Stebel, Børge Hamre, Yi-Chun Chen, Dennis Muyimbwa, Carlos Toledano, Øyvind Frette, Jakob J. Stamnes, Sandra Blindheim |
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| Rok vydání: | 2016 |
| Předmět: |
Angstrom exponent
010504 meteorology & atmospheric sciences Meteorology business.industry Materials Science (miscellaneous) Atmospheric sciences 01 natural sciences Subarctic climate Industrial and Manufacturing Engineering AERONET Aerosol 010309 optics Northern norway Altitude Optics Arctic 0103 physical sciences Environmental science Business and International Management business Optical depth 0105 earth and related environmental sciences |
| Zdroj: | Applied optics. 55(4) |
| ISSN: | 1539-4522 |
| Popis: | We present comparisons between estimates of the aerosol optical thickness and the Angstrom exponent in Northern Norway and Svalbard based on data from AERONET (Aerosol Robotic Network) stations at Andenes (69.28°N, 16.01°E, 379 m altitude) and Hornsund (77.00°N, 15.56°E, 10 m altitude) for the period 2008-2013. The five/six-year annual mean values for the aerosol optical thickness at 500 nm τ(500) at Andenes and Hornsund both were 0.09. At Hornsund, there was less variation of the monthly mean value of τ(500) than at Andenes. The annual mean values of the Angstrom exponent α at Andenes and Hornsund were 1.29 and 1.34, respectively. At Andenes and Hornsund α was found to be larger than 1.1 in 68% and 84% of the observations, respectively, indicating that fine-mode particles were dominating at both sites. Both sites had a similar aerosol size distribution during summer although one site is in an arctic area while the other site is in a subarctic area. |
| Databáze: | OpenAIRE |
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