Abundance of Particulate Aggregrates (Marine Snow) Measured during the JGOFS Equatorial Pacific Process StudyEntry ID: JGOFS_EQPAC_MARINE_SNOW
Abstract: The Equatorial Pacific Process Study (EQPAC) was conducted along 140 deg W
longitude during 1992.
Four cruises took place: February 3 - March 9, March 19 - April 15,
August 5 - September 18, and September 24 - October 21. A fifth benthic
cruise and sediment trap legs were added. During the first cruise
(TT007), 15 stations ... were occupied along 140 deg W longitude from
12 deg N latitude to 12 deg S latitude. During the second cruise
(TT008), data were collected at 8 stations along 140 deg W longitude
from 9 deg S latitude to 9 deg N latitude. During the third cruise
(TT011), data were collected at 15 stations along 140 deg W from 12 deg N
latitude to 12 deg S latitude. During the fourth cruise (TT012), data were
collected at 5 stations along 140 deg W longitude from 17 deg S
latitude to the equator.
On the second cruise, a camera and strobelights were used to
illuminate aggregate particles. The system was lowered slowly
10-20 m/min through the water column on a trawl wire, exposing frames
at a time interval of 7-20 sec calculated to yield 700-800 frames
between the surface and the sea floor. Depth was monitored and
recorded using a pinger and the ship's precision depth recorder.
The parameter measured was the number of aggregates greater than 0.5 mm.
The data is public domain and can be retrieved on-line at
[The information in this summary was taken from the JGOFS
World Wide Web pages.]
(Click for Interactive Map)
Start Date: 1992-03-19Stop Date: 1992-04-15
Distribution Media: On-line (World Wide Web)
Center for Marine Studies Univ. of Southern Mississippi Bldg 1105
City: NSTL Station
Province or State: MS
Postal Code: 39529
Creation and Review Dates
Last DIF Revision Date: 2009-05-13