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Cruise Name: International Siberian
Shelf Study 2008 (ISSS-08)
Platform Name and type: R/V Yakob Smirnitskyi
Project: Overall this was an IPY (IPY-562) ship-based program along the entire Eurasian-Arctic
continental shelf with combined biogeochemical and geophysical observations.
Specific project: How water-sediment interactions control micronutrient and isotopic tracer distributions on
the Siberian Shelves of the Arctic Ocean.
Lead Nation: Russia
Chief scientist (Lead scientist / Principal Investigator) contact details
Email: igorsm@iarc.uaf.edu Phone: +1 907-474 6286
Name: Igor Semiletov
Mailing Address:
University of Alaska Fairbanks
International Arctic Research Center
930 Koyukuk Drive
P.O. Box 757340
Fairbanks, Alaska 99775-7340
USA
Co-Chief scientist contact details: [GEOTRACES point of contact if different from Chief scientist]
Name: Per Andersson, GEOTRACES (Several
project with co-PIs see enclosed EOS report)
Mailing Address:
Swedish Museum of Natural History
Laboratory for Isotope Geology
Box 50007
104 05 Stockholm
Sweden
Phone: +46 8 5195 4038
Email:
per.andersson@nrm.se
Cruise Details
Start Port and Country: Kirkenes, Norway
Start date: 15 August, 2008
End Port and Country: Kirkenes, Norway
End Date: 25 September, 2008
Location: Along the Siberian coast with focus on the Laptev and east Siberian Sea. See enclosed EOS
manuscript with cruise map
Cruise Overview: Abstract for the TEI part of the research programme.This proposal uses a unique opportunity to examine an
essential component of global biogeochemical cycles. The logistical costs chartering Russian research vessels for the 2008 Nordic
LSBI expedition (IPY-562) are financed by KAWS. This include estuary-shelf-slope-basin transects for collection of waters and
sediments from the Siberian Shelf. This proposal covers project costs to study the supply and transport of micronutrients (Zn, Ni,
Cd, Cu, Co, Mn, Fe) and trace element isotopic tracers (Nd and U isotopes, Ba) from the Siberian Arctic rivers, across the
continental shelf, and into the central Arctic Ocean. This will be used to constrain whether the shelf acts as a net source for
essential biogeochemical trace elements during shelf transport. This is a part of the international GEOTRACES project, which has
identified freshwater inputs into the Arctic, and Arctic shelf-water exchange, as key issues. Sampling includes "trace metal clean"
water sampling, separation of larger particles and colloids, sediment coring and pore water extraction. Short-lived 234Th will be
used to estimate removal rates in the water column. U and Nd isotopes, which have been found to trace water-shelf interactions in
the Arctic, will be used for provenance determination and water-sediment exchange. The results will provide an important
baseline on key trace elements on the Siberian Shelf, which is crucial knowledge for future studies of the response of the Arctic
region to global climate change.
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Intercalibration plans: Participation in the GEOTRACES intercalibration efforts by analsying samples
from both the Atlantic cruise and the Pacific cruise. The trace elemnt laboratory is also analysinf SAFe
samples for intercalibration.
Details: Laboratory for Isotope Geology participate in Nd, Th and Si isotope intercalibration
Luleå Technical University (Applied Geology) participate in trace metals and Si isotope intercalibration
Stockholm University (Institute of Applied Environmental Research, ITM) participate in trace metal
intercalibration.
Anticipated list of parameters to be submitted to GDAC: Key parameters listed please list any other
parameters measured and the PI contact information. Also include information in regards to the phase i.e. dissolved or
particulate.
Trace elements:
Contact for each element (PI); [name and email]
Internationally
calibrated (Yes or No)
Fe, Fe isotopes Johan Ingri, Johan.Ingri@ltu.se
Yes
Al
Johan Ingri, Johan.Ingri@ltu.se
Yes
Zn
Mn
Johan Ingri, Johan.Ingri@ltu.se
Cd, Cd isotopes Mark Rehkämper, markrehk@imperial.ac.uk
Yes
Cu
REE
Don Porcelli Don.Porcelli@earth.ox.ac.uk
Cr
Don Porcelli Don.Porcelli@earth.ox.ac.uk
Ba
Don Porcelli Don.Porcelli@earth.ox.ac.uk
Radioactive
isotopes:
230
Th
Per Andersson, per.andersson@nrm.se
Yes
231
Pa
Other
Other
Other
Other
Stable isotopes:
Carl-Magnus Mörth, magnus.morth@geo.su.se

Carl-Magnus Mörth, magnus.morth@geo.su.se
C
18
Per Andersson, per.andersson@nrm.se
 O
Radiogenic
isotopes:
Nd isotopes
Per Andersson, per.andersson@nrm.se
Yes
Pb isotopes
He
Don Porcelli, Don.Porcelli@earth.ox.ac.uk
Other parameters: CTD and Niskin-bottle water sampling and at-sea analyses for nutrients. Acoustic
Doppler Current Profiler (ADCP), Hydrosonde vertical profiling, Plankton net sampling, Micrometeorology
air-methane and CO2 and CH4 fluxes, Hi-vol aerosol and vapor-phase sampling, Geophysical – seismic
surveying, Water pumping for molecular-isotope biogeochemistry, Sediment sampling, Sedimentology
List CTD hydrographic parameters [sensors including make; salinity, temperature, oxygen, nutrients etc]
A SeaBird 911 CTD equipped with a turbidity sensor
Göran Björk, gobj@gvc.gu.se
Particles/Aerosols: Not for TEI. High volume air sampling for vapor phase and aerosols for organics.
List Underway data: [Met data, navigation hull mounted sensors including make and model]
Navigational data to be added.
GDAC Post-Cruise Metadata form Platform
Return to GDAC, BODC, Joseph Proudman Building, 6 Brownlow Street, Liverpool, L3 5DA
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Is there a national data centre: (name and contact) SMHI, Jan Szaron, Jan.Szaron@smhi.se
Other relevant information: