The Fram Strait acoustic tomography system

The deep and wide Fram Strait between Greenland and Spitzbergen is the main influx and efflux gate to the Arctic Basin. Although major resources are invested in measurements of current and temperature here (http://asof.npoar.no), the flux estimates still have significant deficiencies and errors. Our objective is to build, test, validate and use an innovated integrated observing and modeling system, including acoustic tomography, for improved monitoring of volume, heat and freshwater transports in the Fram Strait. As part of the DAMOCLES‐IP, (=Developing Arctic Modeling and Observing Capabilities for Long‐term Environmental Studies ‐ Integrated Project) a first step acoustic tomography system is to be installed in the Fram Strait between East Greenland and West Spitzbergen in August 2008. The first step tomography system consists of one acoustic source near the Svalbard shelf and one receiver array in the middle of the Fram Strait. An extended acoustic system serving both tomography and glider navigation i...

[1]  Rainer Bleck,et al.  An oceanic general circulation model framed in hybrid isopycnic-Cartesian coordinates , 2002 .

[2]  Subramaniam Rajan,et al.  Model-oriented ocean tomography using higher frequency, bottom-mounted hydrophones. , 2005, The Journal of the Acoustical Society of America.

[3]  Andrey K Morozov,et al.  Underwater tunable organ-pipe sound source. , 2007, The Journal of the Acoustical Society of America.

[4]  G. G. Stokes.  "J." , 1890, The New Yale Book of Quotations.

[5]  G. Evensen.  Data Assimilation: The Ensemble Kalman Filter , 2006 .

[6]  Corinne Le Quéré,et al.  Climate Change 2013: The Physical Science Basis , 2013 .

[7]  Arata Kaneko,et al.  Assimilation of coastal acoustic tomography data into a barotropic ocean model , 2000 .

[8]  O. Johannessen,et al.  Numerical simulation of remote acoustic sensing of ocean temperature in the Fram Strait environment , 1998 .

[9]  David M. Fratantoni,et al.  UNDERWATER GLIDERS FOR OCEAN RESEARCH , 2004 .

[10]  L. Hinzman,et al.  Observations: Changes in Snow, Ice and Frozen Ground , 2007 .

[11]  P. Rhines,et al.  Arctic–Subarctic Ocean Fluxes , 2008 .

[12]  Walter Munk,et al.  Ocean Acoustic Tomography , 1988 .

[13]  Ola M. Johannessen,et al.  Evolution of the large‐scale temperature field in the Greenland Sea during 1988–89 from tomographic measurements , 1993 .

[14]  Craig M. Lee,et al.  Acoustic Navigation and Communication forHigh-Latitude Ocean Research Workshop , 2006 .

[15]  Shalina,et al.  Satellite Evidence for an Arctic Sea Ice Cover in Transformation. , 1999, Science.

[16]  James H. Miller,et al.  Acoustic travel-time perturbations due to shallow-water internal waves and internal tides in the Barents Sea Polar Front: Theory and experiment , 1996 .

[17]  U. Send,et al.  SIX YEARS OF TOMOGRAPHY OBSERVATION IN THE CENTRAL LABRADOR SEA , 2005 .

[18]  E. Fahrbach,et al.  Variation of Measured Heat Flow Through the Fram Strait Between 1997 and 2006 , 2008 .