Charles N. Flagg and Maureen Dunn  Marine Sciences Research Center Stony Brook University Stony Brook, NY 11794 E-mail: Charles.Flagg@sunysb.edu

   The motivation for the Western Arctic Shelf-Basin Interactions (SBI) Program is to increase our understanding of the physical and biological processes affecting the Arctic Ocean in an effort to predict the regions response to global climate change.  The interdisciplinary program employs field studies focusing on the Chukchi and Beaufort Seas.

   The new icebreaker USCGC Healy is well suited for field research in this area and supports a wide variety of oceanographic and meteorological instrumentation.   Included in the ship are two types of Acoustic Doppler Current Profilers (ADCP) that measure relative water velocity beneath the ship, a 150 kHz broadband instrument (BB150) and a 75 kHz Ocean surveyor (OS75).   The two instruments compliment one another; the BB150 with its higher frequency is capable of finer vertical resolution in relatively shallow waters (<200m) while the OS75 yields less detailed information but extends to a greaterr range (>400m).

   The raw ADCP data acquired by these instruments are processes at Brookhaven National Laboratory using the CODAS3 shipboard ADCP processing programs developed by the University of Hawaii with additional capabilities developed at Brookhaven. As the data from each cruise is processed, it is made accessible through this web page which allows for the downloading of user specified portions from each cruise in either flat-ASCII or matfile formats. Cruise plots are also available for viewing 

Discription of the USCGC Healy's ADCP installations

The operation and maintenance of the oceanographic equipment on the Healy owes a great deal to the ship's company and the marine safety technicians, in particular.  We wish to express our appreciation for their efforts.

USCG MSTs during the 2002 field season:  Senor Chief Glen Hendrickson, Chief Mike Hamerski, MST1 Sean Kuhn, MST2 Bridget Cullers, MST3 Susan Scriven

 Shipboard ADCP data collected for each USCGC Healy cruise is available below.
*** Please note that the data are always subject to review and users are encouraged to contact us if they encounter problems or find errors.

SBI Cruise 1, May 5 - June 15, 2002

    Report on ADCP data collection on HY0201 - Charlie Flagg  

  HY0201_OS75
Healy cruise HY0201 (5/7/02 to 6/14/02) Ocean Surveyor 75
 
  HY0201_BB150
Healy cruise HY0201 (5/7/02 to 6/14/02) Broadband 150

Keigwin Phase I , June 15 - July 7, 2002
 
  HY0202_OS75
Healy cruise HY0202 (6/17/02 to 7/06/02) Ocean Surveyor 75
 
  HY0202_BB150
Healy cruise HY0202 (6/18/02 to 7/01/02) Broadband 150

SBI Cruise 2, July 17 - August 26, 2002

    Report on ADCP data collection on HY0203 - John Gunn  

  HY0203_OS75
Healy cruise HY0203 (7/17/02 to 8/23/02) Ocean Surveyor 75
 
  HY0203_BB150
Healy cruise HY0203 (7/17/02 to 8/23/02) Broadband 150

Keigwin Phase II , August 26 - September 17, 2002
 
  HY0204_OS75
Healy cruise HY0204 (8/26/02 to 9/17/02) Ocean Surveyor 75
 
  HY0204_BB150
Healy cruise HY0204 (8/26/02 to 9/17/02) Broadband 150

 USCGC Healy 0303 Mooring Cruise, September 17 - October 18, 2003

    Report on ADCP data collection on HY0303 - Andreas Munchow  

  HY0303_OS75
Healy cruise HY0303 (9/11/03 to 10/18/03) Ocean Surveyor 75