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| Titel |
Eddy-Covariance methane flux studies in the Russian Arctic Seas |
| VerfasserIn |
Anatoly Salyuk, Igor Semiletov |
| Konferenz |
EGU General Assembly 2010
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| Medientyp |
Artikel
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| Sprache |
Englisch
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| Digitales Dokument |
PDF |
| Erschienen |
In: GRA - Volume 12 (2010) |
| Datensatznummer |
250042060
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| Zusammenfassung |
| The East Siberian Arctic Shelf (ESAS) is a unique area of the World Ocean. First, being the
largest and shallowest shelf area of the World Ocean with a mean depth of 48 m
(Laptev), 58 m (East-Siberian), and 80 m (Chukchi) and corresponding areas of
498Ã103 km2, 987Ã103 km2, and 620Ã103 km2, respectively, the ESAS represents
about 47% of the whole area of the Arctic shelves which is about 50% of the total
area of the Arctic Ocean. Second, it is shallow, representing a short conduit for
seabed CH4 to the atmosphere. Data from more than 5000 water samples collected
between 2003-2009 showed the ESAS as a strong CH4 source into the atmosphere
(Shakhova et al 2009, 2007). It is also proved by the helicopter survey (Salyuk et
al., 2009). Here we present some results of eddy-covariance (EC) CH4 flux study
performed in 2007 and 2008. The measurements were done using a flux package that
consists of: high-resolution fast methane analyzer (DLT-100; response time: |
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