Biogeochemical Tracers in Arctic Rivers: Linking thePan-Arctic Watershed to the Arctic Ocean

(The PARTNERS Project)

“Our overall objective is to use river water chemistry to study the origin and fates of continental runoff in the Arctic”

Discharge and Basin Areas of PARTNERS Rivers

Ob’ River at Salekhard

Yenisey River at Dudinka

Chris Guay

LB Nat. Lab.Barium/Trace Elem.

YukonMackenzieKolyma

Sasha ZhulidovCPPI

Tim Brabets USGS

Dave Milburn WRD

Sergei ZimovNE Science

Station

Bruce PetersonMax Holmes

Jim McClelland Marine Biological LaboratoryH

218O, PO13C, Nutrients, etc

Rainer AmonTexas A&M

Organic Matter

Pete RaymondYale

Carbon isotopes

YeniseyLenaOb'

PARTNERS Sample Flow ChartV

EC

O

“Primary” PARTNERS Institutions and Key PersonnelINSTITUTION PRIMARY

PERSONNEL EXPERTISE

Marine Biological Laboratory Woods Hole

Bruce Peterson Max Holmes Jim McClelland

Arctic river biogeochemistry

Center for Preparation of International Projects Rostov-on-Don, Russia

Sasha Zhulidov Water and constituent fluxes, Russian rivers

U.S. Geological Survey Rob Striegl Tim Brabets

Water and constituent fluxes, Yukon River

Water Resources Division Yellowknife, Canada

Dave Milburn Water and constituent fluxes, Mackenzie River

University of Tennessee Lee Cooper Oceanographic tracers Lawrence Berkeley National Laboratory, Berkeley

Chris Guay Oceanographic tracers- inorganic

Alfred Wegener Institute Bremerhaven, Germany

Rainer Amon Oceanographic tracers- organic

Woods Hole Oceanographic Inst.

Pete Raymond Origins and transport of carbon

Shirshov Inst. of Oceanology, Moscow, Russia

Slava Gordeev Arctic river/ocean biogeochemistry

State Hydrological Institute, St. Petersburg, Russia

Igor Shiklomanov Arctic river discharge

Northeast Science Station, Cherski; Cal. Tech, etc.

Sergei Zimov Jim Randerson

Kolyma River biogeochemistry

*Each of the 6 rivers will be sampled 2X in 2003, 7X in 2004, 7X in 2005, and 2X in 2006

*Samples will be collected during all seasons, with at least 1 sample per year (2004 and 2005) through the ice

Sampling Schedule

Constituents to be Analyzed

Analysis Where Analyzed Field Measurements D.O., pH, Temp, Cond, Alkalinity/HCO3

-/CO32-

At field sites when samples are collected

Nutrients/Major Ions Nutrients (NO3, NH4, PO4, SiO2) MBL, CPPI, WRD, USGS Major Ions (Cl-, SO4

-, Mg2+, Ca2+, Na+, K+, F-)

MBL, CPPI, WRD, USGS

Organic Matter DOC conc/14C-DOC Yale POC conc/13C-POC MBL 14C-POC Yale Compound - specific OM and optical properties

Texas A&M University Galveston

PON conc/15N-PON MBL DON conc. Yale

Analysis Where Analyzed DOP conc.? Inorganic Tracers H2

18O MBL Deuterium (2H2O) NWRI, Gibson Tritium (3H2O) NWRI, Gibson Barium LBNL (Guay) Sr isotopes -87/86, Ni, Co, Zn, Fe, Cu

LBNL (Guay)

PIC conc. and 14C-PIC Yale DIC conc. and 14C-DIC Yale Hafnium (Hf), Beryllium (Be), other?

Martin Frank, Bettina Zimmermann (Zurich) - details yet to be worked out

127I, 129I, etc Peter Santschi and Rainer Amon - proposal in prep.

Isotopes of Ca, Fe, Mo, Ge, and Si Group at OSU and UCB affiliated with Guay - details yet to be worked out

Other Microbial Community Structure MBL/Horn Point - Crump

Constituents to be Analyzed - cont.

US D-96 Depth Integrating Sampler

US SS-1 Teflon 14-L Churn Splitter

Sampling Strategy

*Same equipment and protocols at all sites

*Collect depth-integrated samples in Teflon bags using US D-96, multiple verticals across channel

*Composite verticals in Teflon churn splitter

Barium (nmol L-1)0 100 200 300 400 500 600

18 O

‰

-25

-20

-15

-10

-5

0

5

Atlantic Water

Pacific Water

MackenzieRiverEurasian

Arctic Rivers

WATERSHEDCHAMP: PARTNERS will obtain biogeochemical data, including isotopic tracers, that will aid in understanding of catchment hydrology

LAII/PACTS: PARTNERS will help close nutrient and carbon budgets for the arctic terrestrial zone

COASTAL ISSUESLSI: PARTNERS will provide estimates of biogeochemical fluxes (nutrients, carbon, sediments, etc) to the arctic coastal zone

ARCTIC OCEAN ISSUES OAII/SBI: PARTNERS will determine river tracer concentrations and fluxes needed to better follow riverine freshwater in the Arctic Ocean

ENTIRE ARCTIC SYSTEMARCSS/SEARCH: PARTNERS will provide data linking terrestrial and oceanic domains, and establish contemporary baseline of

biogeochemical fluxes needed to detect future changes

PARTNERS: Links to Arctic Research Programs