COBRA (impact of COmbined iodine and Bromine Release on the Arctic atmosphere) is a UK IPY (International Polar Year) consortium that aims to investigate the release mechanisms of iodine in the Arctic and the potential combined effects of iodine and bromine on its atmosphere. The team measured reactive inorganic halogens (BrO, IO, OIO, I2), O3, Hg, HOx, HCHO, NOx, VOCs and reactive halocarbons from temporary laboratories located on the eastern shore of Hudson Bay, north of Kuujjuarapik, during February-March 2008. Met balloons and O3 sondes were launched daily. COBRA set up an ice camp and flux chamber experiments ~500 m into the bay to directly measure halogen emissions and ozone deposition, and measured physical, chemical and biological characteristics of the sea-ice (and potentially of frost flowers) at different depths. The project is linked with OOTI, which carried out a simultaneous field experiment at Kuujjuarapik. The dataset measurements come from the British Antartic Survey (BAS) Frost Flower Specific Surface Area (SSA) using a Brunauer-Emmett-Teller (BET) surface area measurement apparatus.
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Public data: access to these data is available to both registered and non-registered users.
Use of these data is covered by the following licence: http://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/. When using these data you must cite them correctly using the citation given on the CEDA Data Catalogue record.
Data were collected during a 5-week ground-based field campaign at Kuujjuarapik, Hudson Bay (55.30N, 77.73W), during February-March 2008. Data supplied as is by COBRA (impact of COmbined iodine and Bromine Release on the Arctic atmosphere) campaign participants as is in 2009/2010 for archiving at the BADC.
|BAS: Brunauer-Emmett-Teller (BET) - Isotherm Analysis||Deployed on: Kuujjuarapik, Hudson Bay, Canada|
- long_name: SSA
- names: SSA
- long_name: collection temperature
- names: collection temperature
- long_name: date
- names: date
- long_name: delQCH4
- names: delQCH4
- long_name: formation temperature
- names: formation temperature
- long_name: settling
- names: settling
- long_name: source location
- names: source location
- long_name: standard deviation/average
- names: standard deviation/average
- long_name: weight
- names: weight