Russian-American Long-term · Gateway Flux Measurements via Long- term Moorings in Bering Strait....
Transcript of Russian-American Long-term · Gateway Flux Measurements via Long- term Moorings in Bering Strait....
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Russian-American Long-termCensus of the Arctic:RUSALCA:
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Pacific-Arctic Research NEEDS
Time Series Measurements @ Regional & Fine Scales
Sea Ice Extent & ThicknessWind Direction & SpeedCurrents & ProductivityFlux measurementsBiodiversity Change
integrated withMarine mammal research
* IPY Flagship Projects?Ice edge bio-physics (PAG)Pan-Arctic beluga tagging (GINR)
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The Pacific Region of the Arctic Shows Amplified Response to
Global Change
HOW DO RUSSIA AND THE USA, THE GATEKEEPERS OF THE PACIFIC GATEWAY TO THE ARCTIC, MOVE FORWARD TOGETHER?
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RUSALCA GOALS:1. Take observations Where
Arctic Sea Ice reduction is a Maximum
2. Monitor Fresh Water and Nutrient Fluxes and Transport Pathways Through the Pacific Gateway.
3. Monitor Ecosystem Indicators of Climate Change.
4. Improve Russian-U.S. Arctic Climate Science Relations
5. Explore the unknown Arctic
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Pacific Gateway
GOAL 1 (Sea Ice Thinning Observations)
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Increased Fresh Increased Fresh WaterWater
Flow From theFlow From theArctic to the NorthArctic to the North
AtlanticAtlanticWhat are the What are the pathways of pathways of
fresh water flow fresh water flow across the across the
Pacific Pacific Gateway ?Gateway ?
??GOAL 2: FreshWater Fluxes-pathways
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Bering Strait
Little Diomede Island, Bering Strait
Measuring the Pacific Input to the Arctic via the Bering Strait
Why? What? Who?
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Gateway Flux Measurements via Long- term Moorings in Bering Strait
From 1990 to 2005
T, S and velocity at 9m above bottom
A1 = western ChannelA2 = eastern Channel
A3 = combination of A1/2A3’ (up north)
A4 = Alaskan Coastal Current
Not all moorings are deployed all years!
Sea Surface Temperature 26th August 2004, from MODIS/Aqua level 1courtesy of Ocean Color Data Processing Archive, NASA/Goddard Space Flight Center, thanks to Mike Schmidt
Grey arrow marks the Diomede Islands (Little and Big Diomede). Russian EEZ line passes between the islands.
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Salinity and Temperature from the Bering Strait
Western Ch (A1) North BS (A3 A3’) Eastern Ch (A2) Alaskan Coast (A4)
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Others…
GOAL 3Monitor Ecosystem Changes -Arctic Census ofMarine Life
ECOSYSTEM INDICATORS OF CLIMATE CHANGE
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Goal 4: Improve Russian-U.S. Arctic Scientific Collaboration
Photo from akbrian.net
R/V Alpha Helix Seward. AK
(Bering Strait & Chukchi Sea 2003) U.S. Expeditions
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20042004
20032003
20022002
NOAA Pacific ArcticGateway exploration
GOAL 5ExploreThe unknownArctic Ocean
20072007--20082008
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GROUPALLIANCE
U.S. AGENCIESAND
INSTITUTIONS
RUSSIAN AGENCIES
ANDINSTITUTIONS
RUSALCA ORGANIZATION FRAMEWORK
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RUSALCA Russian Government Partners
• Russian Academy of Sciences– Shirshov Institute of
Oceanology– Zoological Institute– Institute of
Microbiology– Pacific Oceanological
Institute• Roshydromet
– AARI– FEHRI
• Ministry of Defense– Russian Federation
Navy• Ministry of Natural
Resources– VNIIOkeangeologica
• Ministry of Sciences• Foreign Ministry
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RUSALCA U.S. PARTNERS
• NOAA– CIFAR- University of Alaska– Smithsonian Institution– Pt. Stephens Research– University of Tennessee– Woods Hole Oceanographic Institution• Other agencies ?
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Structure of the Shipboard Operations
• ROSHYDROMETCaptain and crew
• MINISTRY OF DEFENSEChief of Expedition
• RUSALCA MISSION COORDINATORSK. Crane NOAA-M. Zhdanov, Group Alliance
• CHIEF SCIENTISTS– Kevin Wood, NOAA, Terry Whitledge, UAF
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SCIENTIFIC PARTY
• SCIENTISTS WRITE PROPOSALS TO THEIR OWN FUNDING AGENCIES
• Russians- Russian Academy of Sciences• US - CIFAR (NOAA’s Cooperative Institute
at the University of Alaska• Most teams have both Russian and American
partners, e.g. Biodiversity of Fish, Census of Zooplankton, Nutrients
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2003 Sign Memorandum of 2003 Sign Memorandum of Understanding, Russian Academy Understanding, Russian Academy and NOAAand NOAA
2004 2004 Khromov expeditionKhromov expedition Bering- Chukchi Seas
••Census of Marine Life and exploration of Census of Marine Life and exploration of the Chukchi Seathe Chukchi Sea
••Monitoring current fluxes through the Bering Monitoring current fluxes through the Bering Strait and Herald CanyonStrait and Herald Canyon
••Methane explorationMethane exploration
2005, 2006 retrieval of mooring data2005, 2006 retrieval of mooring data
2007, 2008 2007, 2008 International Polar YearInternational Polar Year
RUSALCATIME LINE
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PIIPS VOLCANO, KOMMANDARSKYARC. Venting of Greenhouse Gases and Hgto the atmosphere
gas flare (CH4, CO2, Hg)
hydrothermal vent
plankton abundance
0.8
1
1.2
1.4
1.6
1.8
2
wind direction hydrothermal vents
Mercury content in air (ng/m3) above Piip Submarine Volcano (isobaths in m)
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Actual RUSALCA Stations, 2004
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RUSSIAN METHANE TEAM
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HeraldShelfValley
RusalcaAug 04
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RUSSIAN-AMERICANMOORING LOCATIONS
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RUSALCA 2005, “Sever” in Nome, Alaska
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MOORINGS DEPLOYED 2005 “RUSALCA” Western Bering Strait
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NABOS
NABOS
PASSPASS
NOAA’s Initiative:INTERNATIONAL POLAR YEAR Potential regions of studyU.S. NOAA-Russian Federation Arctic Marine ProgramsRUSALCA-PASS-NABOS
CABOS
CABOS
RUSALCA
RUSALCA
DAMOCLES
DAMOCLES
NOAA OE?NOAA OE?