DOI: 10.1002/2015GL063065
论文题名: Quantifying subtropical North Pacific gyre mixed layer primary productivity from Seaglider observations of diel oxygen cycles
作者: Nicholson D.P. ; Wilson S.T. ; Doney S.C. ; Karl D.M.
刊名: Geophysical Research Letters
ISSN: 0094-9390
EISSN: 1944-9121
出版年: 2015
卷: 42, 期: 10 起始页码: 4032
结束页码: 4039
语种: 英语
英文关键词: diel
; glider
; Hawaii
; net community production
; oxygen
; primary productivity
Scopus关键词: Autonomous underwater vehicles
; Gliders
; Oxygen
; Photosynthesis
; Phytoplankton
; Autonomous underwater gliders
; Diel
; Diurnal periodicity
; Gross primary productivity
; Hawaii
; Marine environment
; Net community productions
; Primary productivity
; Dissolved oxygen
; amplitude
; autonomous underwater vehicle
; chlorophyll
; diel variation
; gyre
; marine environment
; net primary production
; oxygen
; quantitative analysis
; sea surface temperature
; Pacific Ocean
; Pacific Ocean (North)
英文摘要: Using autonomous underwater gliders, we quantified diurnal periodicity in dissolved oxygen, chlorophyll, and temperature in the subtropical North Pacific near the Hawaii Ocean Time-series (HOT) Station ALOHA during summer 2012. Oxygen optodes provided sufficient stability and precision to quantify diel cycles of average amplitude of 0.6 μmol kg-1. A theoretical diel curve was fit to daily observations to infer an average mixed layer gross primary productivity (GPP) of 1.8 mmol O2 m-3 d-1. Cumulative net community production (NCP) over 110 days was 500 mmol O2 m-2 for the mixed layer, which averaged 57 m in depth. Both GPP and NCP estimates indicated a significant period of below-average productivity at Station ALOHA in 2012, an observation confirmed by 14C productivity incubations and O2 /Ar ratios. Given our success in an oligotrophic gyre where biological signals are small, our diel GPP approach holds promise for remote characterization of productivity across the spectrum of marine environments. ©2015. The Authors. URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84931573255&doi=10.1002%2f2015GL063065&partnerID=40&md5=b16142f955c4161a2cbb61f9d38aa8ba
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/9005
Appears in Collections: 科学计划与规划 气候变化与战略
There are no files associated with this item.
作者单位: Marine Chemistry and Geochemistry Department, Woods Hole Oceanographic Institution, Woods Hole, MA, United States
Recommended Citation:
Nicholson D.P.,Wilson S.T.,Doney S.C.,et al. Quantifying subtropical North Pacific gyre mixed layer primary productivity from Seaglider observations of diel oxygen cycles[J]. Geophysical Research Letters,2015-01-01,42(10).