Direct radiative feedback due to biogenic secondary organic aerosol estimated from boreal forest site observations
We used more than five years of continuous aerosol measurements to estimate the direct radiative feedback parameter associated with the formation of biogenic secondary organic aerosol (BSOA) at a remote continental site at the edge of the boreal forest zone in Northern Finland. Our upper-limit estim...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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IOP Publishing
2015-01-01
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| Series: | Environmental Research Letters |
| Subjects: | |
| Online Access: | https://doi.org/10.1088/1748-9326/10/10/104005 |
| _version_ | 1797748651786764288 |
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| author | Heikki Lihavainen Eija Asmi Veijo Aaltonen Ulla Makkonen Veli-Matti Kerminen |
| author_facet | Heikki Lihavainen Eija Asmi Veijo Aaltonen Ulla Makkonen Veli-Matti Kerminen |
| author_sort | Heikki Lihavainen |
| collection | DOAJ |
| description | We used more than five years of continuous aerosol measurements to estimate the direct radiative feedback parameter associated with the formation of biogenic secondary organic aerosol (BSOA) at a remote continental site at the edge of the boreal forest zone in Northern Finland. Our upper-limit estimate for this feedback parameter during the summer period (ambient temperatures above 10 °C) was −97 ± 66 mW m ^−2 K ^−1 (mean ± STD) when using measurements of the aerosol optical depth ( f _AOD ) and −63 ± 40 mW m ^−2 K ^−1 when using measurements of the ‘dry’ aerosol scattering coefficient at the ground level ( f _σ ). Here STD represents the variability in f caused by the observed variability in the quantities used to derive the value of f . Compared with our measurement site, the magnitude of the direct radiative feedback associated with BSOA is expected to be larger in warmer continental regions with more abundant biogenic emissions, and even larger in regions where biogenic emissions are mixed with anthropogenic pollution. |
| first_indexed | 2024-03-12T16:07:49Z |
| format | Article |
| id | doaj.art-b5b71d0d365a44e0a7bc98b5992cbef2 |
| institution | Directory Open Access Journal |
| issn | 1748-9326 |
| language | English |
| last_indexed | 2024-03-12T16:07:49Z |
| publishDate | 2015-01-01 |
| publisher | IOP Publishing |
| record_format | Article |
| series | Environmental Research Letters |
| spelling | doaj.art-b5b71d0d365a44e0a7bc98b5992cbef22023-08-09T14:16:34ZengIOP PublishingEnvironmental Research Letters1748-93262015-01-01101010400510.1088/1748-9326/10/10/104005Direct radiative feedback due to biogenic secondary organic aerosol estimated from boreal forest site observationsHeikki Lihavainen0Eija Asmi1Veijo Aaltonen2Ulla Makkonen3Veli-Matti Kerminen4Finnish Meteorological Institute, Helsinki, FinlandFinnish Meteorological Institute, Helsinki, FinlandFinnish Meteorological Institute, Helsinki, FinlandFinnish Meteorological Institute, Helsinki, FinlandFinnish Meteorological Institute, Helsinki, Finland; Department of Physics, University of Helsinki , FinlandWe used more than five years of continuous aerosol measurements to estimate the direct radiative feedback parameter associated with the formation of biogenic secondary organic aerosol (BSOA) at a remote continental site at the edge of the boreal forest zone in Northern Finland. Our upper-limit estimate for this feedback parameter during the summer period (ambient temperatures above 10 °C) was −97 ± 66 mW m ^−2 K ^−1 (mean ± STD) when using measurements of the aerosol optical depth ( f _AOD ) and −63 ± 40 mW m ^−2 K ^−1 when using measurements of the ‘dry’ aerosol scattering coefficient at the ground level ( f _σ ). Here STD represents the variability in f caused by the observed variability in the quantities used to derive the value of f . Compared with our measurement site, the magnitude of the direct radiative feedback associated with BSOA is expected to be larger in warmer continental regions with more abundant biogenic emissions, and even larger in regions where biogenic emissions are mixed with anthropogenic pollution.https://doi.org/10.1088/1748-9326/10/10/104005aerosolfeedbackbiogenic |
| spellingShingle | Heikki Lihavainen Eija Asmi Veijo Aaltonen Ulla Makkonen Veli-Matti Kerminen Direct radiative feedback due to biogenic secondary organic aerosol estimated from boreal forest site observations Environmental Research Letters aerosol feedback biogenic |
| title | Direct radiative feedback due to biogenic secondary organic aerosol estimated from boreal forest site observations |
| title_full | Direct radiative feedback due to biogenic secondary organic aerosol estimated from boreal forest site observations |
| title_fullStr | Direct radiative feedback due to biogenic secondary organic aerosol estimated from boreal forest site observations |
| title_full_unstemmed | Direct radiative feedback due to biogenic secondary organic aerosol estimated from boreal forest site observations |
| title_short | Direct radiative feedback due to biogenic secondary organic aerosol estimated from boreal forest site observations |
| title_sort | direct radiative feedback due to biogenic secondary organic aerosol estimated from boreal forest site observations |
| topic | aerosol feedback biogenic |
| url | https://doi.org/10.1088/1748-9326/10/10/104005 |
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