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.]
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Data Set Citation
Dataset Originator/Creator: F. Wentz and T. Meissner
Dataset Title: AMSR-E/Aqua Weekly L3 Global Ascending/Descending .25x.25 deg Ocean Grids
Dataset Release Date: 2004-01-01
Dataset Release Place: Boulder, CO U.S.A.
Dataset Publisher: National Snow and Ice Data Center (NSIDC)
Version: 2Online Resource: http://nsidc.org/data/ae_wkocn.html
Start Date: 2002-06-19
Latitude Resolution: 0.25 deg
Longitude Resolution: 0.25 deg
Temporal Resolution: Weekly
ATMOSPHERE > ATMOSPHERIC WATER VAPOR > PRECIPITABLE WATER
ATMOSPHERE > ATMOSPHERIC WATER VAPOR > WATER VAPOR
ATMOSPHERE > ATMOSPHERIC WINDS > SURFACE WINDS
ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > CLOUD LIQUID WATER/ICE
ATMOSPHERE > CLOUDS > CLOUD MICROPHYSICS > CLOUD PRECIPITABLE WATER
OCEANS > OCEAN TEMPERATURE > SEA SURFACE TEMPERATURE
OCEANS > OCEAN TEMPERATURE > WATER TEMPERATURE
OCEANS > OCEAN WINDS > SURFACE WINDS
ISO Topic Category
Quality Level-3 automatic QA procedures involve simply evaluating the Level-2B quality flags to determine if observations are valid for Level-3 products.
Data Set Progress
Distribution Media: FTP
Distribution Size: approx. 25 MB per weekly granule
Distribution Format: HDF-EOS
Email: support at remss.com
444 Tenth Street, Suite 200
City: Santa Rosa
Province or State: California
Postal Code: 95401
Phone: (707) 545-2904
Fax: (707) 545-2906
Email: thomas at remss.com
Remote Sensing Systems 438 First Street Suite 200
City: Santa Rosa
Province or State: CA
Postal Code: 95401
Role: TECHNICAL CONTACT
Phone: +1 (303) 492-6199
Fax: +1 (303) 492-2468
Email: nsidc at nsidc.org
National Snow and Ice Data Center CIRES, 449 UCB University of Colorado
Province or State: CO
Postal Code: 80309-0449
Conway, D. 2002. Advanced Microwave Scanning Radiometer - EOS Quality Assurance Plan. Huntsville, AL: Global Hydrology and Climate Center.
Meissner, Thomas and Frank J. Wentz. 2004. The Complex Dielectric Constant of Pure and Sea Water from Microwave Satellite Observations. IEEE TGARS 42(9): 1836 Â 1849.
Meissner, Thomas and Frank J. Wentz. 2006. Ocean Retrievals for WindSat: Radiative ... Transfer Model, Algorithm, Validation. CD with proceedings of the 9th Specialist Meeting on Microwave Radiometry and Remote Sensing Applications. San Juan, Puerto Rico, 28 February Â 03 March 2006. IEEE Catalog no. 06EX1174C.
Meissner, Thomas and Frank J. Wentz. 2002. Analysis of the Ocean Surface Wind Direction Signal in Passive Microwave Brightness Temperatures. IEEE TGARS 40(6): 1230 Â 1240.
Wentz, F. J., and T. Meissner. 2007. Algorithm Theoretical Basis Document: AMSR-E Ocean Algorithms Supplement 1. Santa Rosa, California, USA: Remote Sensing Systems. (View PDF File)
Wentz, F. and T. Meissner. 2000. AMSR Ocean Algorithm. Algorithm Theoretical Basis Document, Version 2. Santa Rosa, CA, USA: Remote Sensing Systems.
Wentz, Frank J. 1997. A Well-calibrated Ocean Algorithm for SSM/I. Journal of Geophy. Res 102: 8703 Â 8718. For more information regarding related publications, see the Research Using AMSR-E Data Web page.
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2004-02-25
Last DIF Revision Date: 2012-05-03