Accurate oxygen measurements on modified Argo floats using in situ air calibrations.
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Date
2016Author
Bushinsky, Seth M.
Emerson, Steven R.
Riser, Stephen C.
Swift, Dana D.
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Show full item recordAbstract
Oxygen is an important tracer for biological processes in the ocean. Measuring changes in oxygen over
annual cycles provides information about photosynthesis and respiration and their impact on the carbon cycle.
Long-term, accurate oxygen measurements over wide areas are needed to determine changes in ocean oxygen
content and oxygen deficient zones. Oxygen sensors have been increasingly mounted on Argo floats that profile
between 2000 m and the surface. Most of these measurements are currently too inaccurate to calculate the
air-sea gas flux, which is the dominant flux of oxygen in the surface ocean and typically driven by surface oxygen
supersaturation states of only several percent. In this study, we present data from 17 Aanderaa oxygen
optodes mounted on 11 Argo floats modified to make atmospheric measurements for calibration. Optodes measure
oxygen equally well in air and water, allowing the use of atmospheric oxygen to perform on-going, in situ
calibrations throughout the.....
Journal
Limnology and Oceangraphy: MethodsVolume
14Page Range
pp. 491–505Document Language
enSustainable Development Goals (SDG)
14.aEssential Ocean Variables (EOV)
OxygenDOI Original
https://doi.org/10.1002/lom3.10107Citation
Bushinsky, S.M., Emerson, S.R., Riser, S.C. and Swift, D.D. (2016) Accurate oxygen measurements on modified Argo floats using in situ air calibrations. Limnology and. Oceanogr.aphy: Methods, 14, pp.491-505. DOI: https://doi.org/10.1002/lom3.10107Collections