U.S. JGOFS  Arabian Sea Process Cruises

The Arabian Sea process cruise field work focused on an area extending from the southeast coast of Oman toward India (15 °N  69 °E) and southward into the central northwestern Indian Ocean (10 °N  65 °E).   Station locations were selected with the primary goal of investigating regions of seasonal upwelling associated with the Southwest Monsoon and determining the spatial extent of the influence of this upwelling; to sample the area of the Arabian Sea experiencing intense oxygen deficiency; and to sample far enough from the anticipated upwelling to include a site with minimal wind-driven, seasonal effects.   Research cruises were scheduled in July, August and September to coincide with the Southwest Monsoon; December, January and February to coincide with the Northeast Monsoon; and March/April to study the region during an intermonsoon period.

The entire Arabian Sea Process Study effort consisted of approximately 17 cruises aboard the R/V Thomas Thompson based from Muscat, Oman.   Merged hydrographic data products have been compiled from the six process cruises summarized in the table below.   Detailed cruise reports can be displayed by selecting the info button.

Cruise ID Cruise Name Stations Time Location Chief Scientist
  TTN-043 Process 1 31 locations January 8 to February 1, 1995
22°N 57°E to 9°N 69°E
Dr. Mike Roman
  TTN-045 Process 2 31 locations March 14 to April 8, 1995
22°N 57°E to 9°N 69°E
Dr. John Marra
  TTN-049 Process 4 35 locations July 18 to August 13, 1995
22°N 57°E to 9°N 69°E
Dr. Richard Barber
  TTN-050 Process 5 32 locations August 18 to September 13, 1995
22°N 57°E to 9°N 69°E
Dr. Sharon Smith
  TTN-053 Process 6 29 locations October 29 to November 25, 1995
25°N 56°E to 10°N 68°E
Dr. Barney Balch
  TTN-054 Process 7 20 locations December 5 to December 24, 1995
20°N 58°E to 9°N 68°E
Dr. Wilford Gardner

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