[Parameters: Topic='CRYOSPHERE', Term='SEA ICE', Variable_Level_1='SEA ICE CONCENTRATION']
Sea Ice Mass Balance in the Antarctic - Ice Cores Physics and BiogeochemistryEntry ID: SIMBA_Ice_Cores_Physics_and_Biogeochemistry
Abstract: The data supports modeling efforts involving the development of a new sea ice biogeochemical model (SIMCO). Its parameterization relies on the results obtained during process studies such as Arise in the East, ISPOL and, now, SIMBA. Deciphering the complex biogeochemical processes governing the iron, carbon and sulphur cycle in sea ice relied on an integrated approach providing the best ... characterization of the sea ice environment during the time sequence involved. Therefore, field activities addressed a whole set of physico-chemical and biological parameters both in the ice itself, in the sea water below, in the snow above and in the atmosphere. Additionally, 14C/55Fe incubation experiments and shipboard microcosm’s experiments were conducted. Some of the measurements were performed in the field, others back in “home laboratories”. The dataset gives a full description of the core sampling activities during the SIMBA drift station period. “En route” short stations only involved the measurements of basic variables, within the time slot allowed.
Purpose: The overall objective of this investigation was to study, understand and quantify the physical and biogeochemical processes associated with the sea ice biota that govern the emissions of marine gases of climatic significance. These processes are indeed presently unknown and therefore not integrated into Oceanic Biogeochemical Climate Models. Particular attention was paid to Carbon Dioxide (CO2) ... and Dimethyl Sulphide (DMS), both actively involved in the sea ice microbial metabolism. It has now been demonstrated that iron can play a crucial role in controlling phytoplankton productivity and the biological carbon pump in the Southern Ocean. The work program thus additionally focused especially on the biogeochemical cycle of iron (origin, availability and fate) in the sea ice environment. Also, this specific field project comes in support of a long-term Belgian research program (SIBClim: Sea Ice Biogeochemistry in a Climate Change Perspective) that aimed to assess to which extent ice-covered polar oceans contribute to processes regulating the Earth’s Climate.
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Data Set Citation
Dataset Originator/Creator: Christophe Genthon
Dataset Title: Dr
Dataset Series Name: CALVA - meterology
Dataset Release Date: 0000-00-00
Dataset Release Place: http://www-lgge.obs.ujf-grenoble.fr/~christo/calva/Online Resource: http://www-lgge.obs.ujf-grenoble.fr/~christo/calva/
Temporal Resolution Range: 1 minute - < 1 hour
ATMOSPHERE > ATMOSPHERIC PHENOMENA
ATMOSPHERE > ATMOSPHERIC TEMPERATURE > AIR TEMPERATURE
ATMOSPHERE > ATMOSPHERIC TEMPERATURE > ATMOSPHERIC STABILITY
ATMOSPHERE > ATMOSPHERIC TEMPERATURE > BOUNDARY LAYER TEMPERATURE
ATMOSPHERE > ATMOSPHERIC TEMPERATURE > TEMPERATURE PROFILES
ATMOSPHERE > ATMOSPHERIC WATER VAPOR > HUMIDITY
ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR PROFILES
ATMOSPHERE > ATMOSPHERIC WINDS > TURBULENCE
ATMOSPHERE > PRECIPITATION > HYDROMETEORS
ATMOSPHERE > PRECIPITATION > PRECIPITATION RATE
ATMOSPHERE > PRECIPITATION > SNOW
ATMOSPHERE > ATMOSPHERIC WINDS > BOUNDARY LAYER WINDS
ISO Topic Category
Quality Quality is hard to assess at Dome C, as commercial instruments are used but are not validated for such conditions (cold, frost).
Otherwise, commercial instrument accuracy. Instruments are from recognized manufacturers / providers such as Campbell, Vaisala, Biral, etc.
Access Constraints Please contact investigators
Use Constraints Please contact data providers.
Data Set Progress
Distribution Media: ELECTRONIC MEDIA > Online Internet (HTTP)
Distribution Media: ELECTRONIC MEDIA > Online FTP
Role: TECHNICAL CONTACT
Role: DIF AUTHOR
Phone: 33 (0)4 76 82 42 15
Fax: 33 (0)4 76 82 41 01
Email: genthon at lgge.obs.ujf-grenoble.fr
LGGE 54 Rue Molière, BP96
City: Saint Martin d'Hères
Postal Code: 38402
Genthon C., P. Lardeux, et G. Krinner, 2007. The surface accumulation and ablation of a blue ice area near Cap Prudhomme, Adélie Land, Antarctica, J. Glaciol. 53, Vol. 183, 635-645.
Genthon C., M. Town, D. Six, V. Favier, S. Argentini, A. Pellegrini, 2009. Meteorological atmospheric boundary layer measurements and ECMWF Analyses during summer at Dome C, Antarctica, J. Geophys. Res, in press.
Rabier F., et al., 2009. The Concordiasi project in Antarctica, Bull. Am. Met. Soc., submitted
Creation and Review Dates
DIF Creation Date: 2009-09-07
Last DIF Revision Date: 2012-01-31