NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Development of improved space sampling strategies for ocean chemical properties: Total carbon dioxide and dissolved nitrateLarge-scale ocean observing programs such as the Joint Global Ocean Flux Study (JGOFS) and the World Ocean Circulation Experiment (WOCE) today, must face the problem of designing an adequate sampling strategy. For ocean chemical variables, the goals and observing technologies are quite different from ocean physical variables (temperature, salinity, pressure). We have recently acquired data on the ocean CO2 properties on WOCE cruises P16c and P17c that are sufficiently dense to test for sampling redundancy. We use linear and quadratic interpolation methods on the sampled field to investigate what is the minimum number of samples required to define the deep ocean total inorganic carbon (TCO2) field within the limits of experimental accuracy (+/- 4 micromol/kg). Within the limits of current measurements, these lines were oversampled in the deep ocean. Should the precision of the measurement be improved, then a denser sampling pattern may be desirable in the future. This approach rationalizes the efficient use of resources for field work and for estimating gridded (TCO2) fields needed to constrain geochemical models.
Document ID
19950053167
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Goyet, Catherine
(Woods Hole Oceanographic Institution, Woods Hole, MA United States)
Davis, Daniel
(Monterey Bay Aquarium Research Institution, Pacific Grove, CA United States)
Peltzer, Edward T.
(Woods Hole Oceanographic Institution, Woods Hole, MA United States)
Brewer, Peter G.
(Monterey Bay Aquarium Research Institution, Pacific Grove, CA United States)
Date Acquired
August 16, 2013
Publication Date
April 15, 1995
Publication Information
Publication: Geophysical Research Letters
Volume: 22
Issue: 8
ISSN: 0094-8276
Subject Category
Geophysics
Accession Number
95A84766
Funding Number(s)
CONTRACT_GRANT: NAGW-2431
CONTRACT_GRANT: DE-FG02-ER-60980
Distribution Limits
Public
Copyright
Other

Available Downloads

There are no available downloads for this record.
No Preview Available