KOPRI Repository

Spatial variability of ΔO2/Ar and net community production in the surface waters of the Northwest Pacific: from Incheon, Korea to Nome, Alaska

Metadata Downloads
Title
Spatial variability of ΔO2/Ar and net community production in the surface waters of the Northwest Pacific: from Incheon, Korea to Nome, Alaska
Other Titles
북서태평양 표층수 DO2/Ar 신생산의 공간분포: 인천에서 알래스카 놈까지
Authors
Rhee, Tae Siek
Park, Keyhong
Hahm, Doshik
Jang, chan Joo
Park, Kyung-Ah
Keywords
Northwest Pacific; O2/Ar; net community production
Issue Date
2012
Citation
Rhee, Tae Siek, et al. 2012. Spatial variability of ΔO2/Ar and net community production in the surface waters of the Northwest Pacific: from Incheon, Korea to Nome, Alaska. 한국해양학회. 한국해양학회. 2012.11.26~.
Abstract
Saturation anomaly of dissolved oxygen (O2) in surface waters of the ocean is, in general, associated with physical and biological processes. Given that argon (Ar) have similar solubility and diffusivity in seawater to those of O2, Ar measurement can be used to isolate the O2 saturation anomaly related to physical processes such as the changes of seawater temperature and atmospheric pressure, and bubble injections among the various processes. Remaining biological O2 anomaly, ΔO2/Ar (=[O2/Ar]sample/[O2/Ar]saturation−1), reflects the difference between photosynthetic production and respirational consumption of O2, corresponding to net community production (NCP). To investigate the variability of biological productivity and its possible connection to atmospheric chemistry, we surveyed ΔO2/Ar in the surface waters along Araon cruise track from Incheon to Nome, Alaska (July 13 − 29, 2012), using an equilibrator inlet mass spectrometer. We divided the cruise track into four regions: Yellow Sea and South Sea of Korea (YS), East Sea (ES), Northwest Pacific (NP), and Bering Sea (BS). Each of the region showed distinctive oceanographic parameters including ΔO2/Ar. YS had ΔO2/Ar in the range of 0 — 8% and largest average of 4.3%. To the contrary, ES is the least productivity region, with average Δ O2/Ar of 1.5%. NP showd modest spatial variability of ΔO2/Ar with average of 2.8%easurement can be used to isolate the O2 saturation anomaly related to physical processes such as the changes of seawater temperature and atmospheric pressure, and bubble injections among the various processes. Remaining biological O2 anomaly, ΔO2/Ar (=[O2/Ar]sample/[O2/Ar]saturation−1), reflects the difference between photosynthetic production and respirational consumption of O2, corresponding to net community production (NCP). To investigate the variability of biological productivity and its possible connection to atmospheric chemist
URI
http://repository.kopri.re.kr/handle/201206/8367
Conference Name
한국해양학회
Conference Place
한국해양학회
Conference Date
2012.11.26~
Files in This Item
General Conditions
      ROMEO Green
    Can archive pre-print and post-print or publisher's version/PDF
      ROMEO Blue
    Can archive post-print (ie final draft post-refereeing) or publisher's version/PDF
      ROMEO Yellow
    Can archive pre-print (ie pre-refereeing)
      ROMEO White
    Archiving not formally supported

    qrcode

    Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

    Browse