OceanSITES by Svein Østerhus www.gfi.uib.no/~ngfso www.gfi.uib.no/~ngfso Station M (66N, 2E) Norwegian Sea North Atlantic Nordic Seas Exchanges Weddell.

Slides:

Advertisements

Similar presentations

X x Indonesian Throughflow Makassar Strait, main pacific inflow channel Weddell Sea Bottom Water x Ross Sea Bottom Water x Agulhas Leakage SAMOC x x x.

Advertisements

The retroflection of the Faroe Current into the Faroe-Shetland Channel Karin Margretha H. Larsen, Bogi Hansen and Hjálmar Hátún Reykjavík, ICES ASC 2013.

Observed and simulated variability of the North Atlantic subpolar gyre Helge Drange & Co G. C. Rieber Climate Institute, the Nansen Center, Bergen, Norway.

Past, current and envisioned activities in the Labrador Sea

Mooring Activities at SAMS NERC 4 th Moorings Workshop 15 th /16 th May 2008 Mooring Activities at SAMS NERC 4 th Moorings Workshop 15 th /16 th May 2008.

SeaWiFS-based chlorophyll in selekt Chl [mg m -3 ] A trans-Atlantic linkage - between the Newfoundland and Rockall basins Hjálmar Hátún, and Annebritt.

1 ICES/NAFO Symposium Santander May Seasonal to interannual variability of temperature and salinity in the Nordic Seas: heat and freshwater budgets.

Ocean Weather Ship Station M The end of the North Atlantic Weather Ship era Svein Østerhus and Tor Gamelsrød

Observatory # 23 Filchner – Ronne Weddell Sea Antarctica Svein Østerhus UNI Climate

Santander 2011 Monitoring the Rockall Trough Toby Sherwin 1 Penny Holiday 2, Jane Read 2, Clare Johnson 1 and many others, including Bill Turrell 3 (with.

Slide 1 Predicting the Climate of Europe: the THOR project Laurent Mortier – University of Paris for Detlef Quadfasel (co-ordinator), University of Hamburg.

A Cross Section along the Western Atlantic Ocean Note the minimum in  , which seems to imply a vertical instability. However, it is because   is not.

The Faroe Current: T-S properties and volume, heat and salt transports Karin Margretha H. Larsen Bogi Hansen, Hjálmar Hátún, Svein Østerhus Extended Ellett.

Climate variability in the Southern Ocean Sector: Relevance to the McMurdo LTER Martin Visbeck Department of Earth and Environmental Sciences Lamont-Doherty.

Sea-ice & the cryosphere

Wind driven seasonal variations in the transport of NAW through the Faroe-Shetland Channel also acknowledge: European Commission (MOEN – ASOF EU-E, Framework.

Deep Thermohaline currents

Thermohaline Overtuning – at Risk? Detlef Quadfasel, THOR Project Office KlimaCampus, University of Hamburg, Germany

NABOS: observational program in the high Arctic Vladimir Ivanov IARC UAF, Fairbanks, Alaska, USA AARI, St. Petersburg, Russia Summer school onboard R/V.

THOR-CT3 Summary 26 September 2012

Revised circulation scheme north of the Denmark Strait

The North Atlantic Ocean and Climate Observing System Stuart A. Cunningham Scottish Association for Marine Science Barbara.

A Cross Section along the Western Atlantic Ocean Note the minimum in  , which seems to imply a vertical instability. However, it is because   is not.

The role of gliders in sustained observations of the ocean Deliverable 4.1 or WP 4.

AGU, 2003 Greenland Iceland Shet- land Faroes image:AGU 2003 Cost ‐ efficient monitoring of the main Atlantis inflow to the Arctic Mediterranean B. Hansen,

Indirect estimate of fluxes between boundary current and deep basins in the Nordic Seas: heat and freshwater budgets Katrin Latarius 1 and Detlef Quadfasel.

Steffen M. Olsen, DMI, Copenhagen DK Center for Ocean and Ice Interpretation of simulated exchange across the Iceland Faroe Ridge in a global.

Transport in the Subpolar and Subtropical North Atlantic

Downscaling Future Climate Scenarios for the North Sea 2006 ROMS/TOMS Workshop, Alcalá de Henares, 6-8 November Bjørn Ådlandsvik Institute of Marine Research.

NACLIM CT 2 Monitoring of North Atlantic parameters New Lead: Johannes Karstensen (GEOMAR) and Karin M. H. Larsen (HAV) WP 2.1 Exchanges across the Greenland-Scotland.

Is the Transport of Atlantic Water in the Faroe Shetland Channel changing? – A summary of 20 years of observations Bee Berx1, Bogi Hansen2, Svein Østerhus3,

Ocean Weather Station M - from weather forecast to climate monitoring Ingunn Skjelvan Bjerknes Centre for Climate Research and Geophysical Institute, University.

NACLIM CT 2 Monitoring of North Atlantic parameters Core Theme sessions Trieste 2 nd Oct 9:00-13:00 Lead: Svein Østerhus and Johannes Karstensen WP 2.1.

North Atlantic Observing System

THOR CT3 Meeting – Torshavn 2009 – Fischer/Visbeck/Zantopp/Nunes In the Labrador Sea, overflow water from the Denmark Strait and from the Iceland-Scotland.

Results from a 3-D ocean model Keith Makinson

Environmental surveys of the Nordic, North, and Barents Seas - by the Institute of Marine Research, Norway Webjørn Melle.

Global Warming And the Planetary Water Cycle Ruth Curry Woods Hole Oceanographic Institution Ruth Curry Woods Hole Oceanographic Institution Global Warming.

Regional Oceanography I

Flow of Atlantic water to the North Icelandic shelf Steingrímur Jónsson 1,2 and Héðinn Valdimarsson 1 1 Marine Research Institute and 2 University of Akureyri.

Water Mass Distribution OEAS 604 Lecture Outline 1)Thermohaline Circulation 2)Spreading pathways in ocean basins 3)T-S diagrams 4)Mixing on T-S diagrams.

The IPY Synoptic Antarctic Shelf-Slope Interactions Study (SASSI) Alejandro H. Orsi Texas A&M University Alejandro H. Orsi Texas A&M University.

Image:AGU 2003 Steingrímur Jónsson, University of Akureyri & Marine Research Institute Héðinn Valdimarsson, Marine Research Institute, Reykjavik Bogi Hansen,

Contributions from: Norwegian Meteorological Institute(met.no) Norwegian Meteorological Institute(met.no) Geophysical Institute, University of Bergen(GfI-UiB)

Smelting og ferskvann svekker ikke nødvendigvis Atlanterhavsstrømmen J.EVEN.Ø. NILSEN, NANSENSENTERET & BJERKNESSENTERET, TOR ELDEVIK, DOROTEA IOVINO,

Bogi Hansen & Hjálmar Hátún Faroe Marine Research Institute Iceland Scot- land Nordic Seas Faroes 0.8 Sv 3.8 Sv Greenland Østerhus et al., GRL 2005 The.

Recent Variability in Ocean Climate in the Scotia-Maine and Adjacent Regions Brian Petrie, Roger Pettipas, Charles Hannah Bedford Institute of Oceanography.

Bogi Hansen, Hjálmar Hátún, Regin Kristiansen, Steffen M. Olsen and Svein Østerhus Iceland Scot- land Nordic Seas Faroes 0.8 Sv 3.8 Sv Greenland Østerhus.

Norwegian Meteorological InstituteM/S Nordkapp Fall 2003 Pathways of Atlantic Water Cecilie Mauritzen – Norwegian Meteorological Institute NOClim 2 Workshop,

10/24/03search_osm_10_032 Abrupt Change in Deep Water Formation in the Greenland Sea: Results from Hydrographic and Tracer Time Series SEARCH Open Science.

EGU meeting 8 April 2013 Vienna FBC Overflow Bogi Hansen HAV.

Increased oceanic heat transport in the main Atlantic inflow branch to the Nordic Seas Bogi Hansen, Karin Margretha H. Larsen Hjálmar Hátún,

ASOF II Objectives What are the fluxes of mass, heat, liquid freshwater and ice from the Arctic Ocean into the subpolar North Atlantic? How will anticipated.

Our water planet and our water hemisphere

Preliminary Results from the Global Ocean Simulations with the Baringer-Price-Yang Marginal Sea Boundary Condition Model Wanli Wu, William Large and Gokhan.

from space Heat by winds by ocean currents

Nansen Environmental and Remote Sensing Center, Norway

Density-Driven Downwelling and Thermohaline Circulation

Ms. Halbohm Marine Biology

Ms. Halbohm Marine Biology

Deliverable 2.8 Optimization of the GSR inflow arrays

Path Forward Discussion

Processes and flow over the Iceland-Faroe Ridge

with contributions from Jan Aure, Roald Sætre and Didrik Danielssen

Transport Mooring Arrays in NACLIM

The coupling between Atlantic inflow and overflow in the Iceland-Scotland region Bogi Hansen, Karin M. H. Larsen, Hjálmar Hátún, Svein Østerhus, Steffen.

What controls the time scale of Circumpolar Deep Water intrusions onto Antarctic continental shelves? Michael S. Dinniman Pierre St-Laurent John M. Klinck.

in situ or Altimetry ? Arctic – Subarctic Ocean Fluxes focus topics:

Jacob Opher Alex Brearley Stephen Dye Ian Renfrew Robert Pickart

Estimating ocean-shelf flux and exchange with drifters

Presentation transcript:

OceanSITES by Svein Østerhus Station M (66N, 2E) Norwegian Sea North Atlantic Nordic Seas Exchanges Weddell Sea Ice Shelf Overflow (ISW) Overflow

Fresher intermediate waters in the Nordic Seas Ocean weather station M (66 N, 2E) The longest deep-water record in the World. Essential for climate research that measurements are continued Note the freshening that starts around 1970 that gradually penetrates deeper into the water column. Salinity anomalies at Ocean Weather Station M

Warmer deep waters in the Nordic Seas Temperature anomalies at OWS M (66°N, 2°E) 2000 m

Status M (66N, 2E) The hydrographical program will continue unchanged (daily CTD casts) Data available after 1-2 months A new monitoring mooring will be deployed in 2006 Quality controlled time series (monthly means ) are in preparations to be publishes.

The North Atlantic Nordic Seas Exchanges The Iceland Branch / Irminger Current west of Iceland The Shetland Branch, Continental Slope Current through the Faroe- Shetland Channel The Faroe Branch / Current over the Iceland-Faroe Ridge MOEN

Volume transport of Atlantic Water Total=8.7 SC=4.2 FC=3.7 IC=0.8

Faroe Bank Channel monitoring 2 ADCPs (75 kHz) MicroCats Seasonal CTD sections

Status North Atlantic Nordic Seas Exchanges Continue with reduced field activity New initiative for Denmark Strait Overflow monitoring (Iceland & Germany) A web page will be establish to take over for the MOEN (ASOF-E-EU), see projects

The Ice Shelf Water (ISW) monitoring station in the southern Weddell Sea Filchner Depression 1.6 ± 0.5 Sv ISW (Foldvik et al 2004) ISW + WDW = 4 Sv WSBW (-0.8 C) WSBW AABW

Status Southern Weddell Sea station The mooring station is operated by British Antarctic Survey (BAS) and Bjerknes Centre for Climate Research (BCCR) The station is serviced biannually (last recovery/redeployment: Jan 2005) A new station is proposed as a part of our IPY initiative (

IPY station on the Filchner-Ronne Ice shelf? The role played in the climate system by the interaction between the ocean and Antarctic ice shelves is a key issue regarding future climate changes. To establish a long term (several decades) monitoring station on the Filchner- Ronne Ice Shelf, in the southern Weddell Sea is proposed as a part of the IPY BIAC.