Mooring A: Southwestern Ross Sea, Ross Island - Antarctica

Basic Information
Site Name
Mooring A: Southwestern Ross Sea, Ross Island
Short name
IT17-001-M
Country
Antarctica
Site Manager
Keywords
biogeochemical cycles
biogeochemical processes
Completely mixed water column with full salinity
CTD
moorings
ocean biogeochemistry
oceanography
paleoecology
paleolimnology
phytoplankton
sediments
zooplankton
Site Description
The mooring A is located in an open sea area close to Franklin Island, characterized by both clay bottom sediment and a flat morphology. The station can be considered as representative of the productivity and sedimentary conditions of the southern part of the Ross Sea, one of the areas considered to be affected by greater productivity rate.The study of mooring can be consider part of the activities conduct in the framework of the research project "ABIOCLEAR - Antarctic biogeochemical cycles - climatic and paleoclimatic reconstructions. (Resp. M. Ravaioli)". Such Project is the natural prosecution of previous research activity carried out from 1987. Objectives : Study of the particle fluxes towards the marine bottom sediment, in particular with the aim to obtain quali/quantitative estimate of the biogenica component coming from the primary production. Analysis of the vertical rain rate processes and, therefore, the marine cycle of the main biogenic particles such as Carbon and Silica. Try to obtain mass budgets of these parameters, estimating their cycle in the water column until the burial processes in sediments. From apparent accumulate rate calculated in the bottom sediment we will tried to discriminate the real vertical fluxes (Rain Rate) from the horizontal input from sediment remobilization processes. Acquisition and elaboration of long time series of data. Collection of bottom Sediment samples to estimate the variations of the productivity and the paleoproductivity in the area. Historical time series of Mooring A: Primary productivity data (every three years), fitoplancton, New and regenerated productivity, Seasonal, annual and interannual fluxes measure, monthly Particles samples, current velocity, water salinity, temperature and torbidity, Water-sediment interface measure. Biogeochemical parameters. Radiometrical Data, Mineralogical and grain size characterization. Nutrient, metals. Biostratigraphy interpretations. Lidar data are also available from 1997.
Last modified
2020-06-29 10:06:55
General Characteristics, Purpose, History
Site Status
Operational
Year Established
1992
Purpose
Study of long term historical time series of the biotic community in the Ross Sea shelf in relation with the biogeochemical cycles and chemico-physical properties of sea-water.
History
This site was active since 1991 until 2009 thanks to a collaboration Programme between USA and Italy. Projects ROSS-MIZE, BIOSESO I and II, ABIOCLEAR and ROAVERRS (M. Ravaioli-R. Dunbar)
Photos
not defined

not defined

Geographic
Size
1.00ha
Elevation (average)
-400.00msl
Elevation (min)
-800.00msl
Elevation (max)
0.00msl
Affiliation and Network Specific Information
Affiliation
ILTERThis site is a verified "ILTER" member.
LTER EuropeThis site is a verified "LTER Europe" member.
LTER Italia (Italy) (LTER_EU_IT_069)This site is a verified "LTER Italia (Italy)" member.
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