Mathematics – Logic
Scientific paper
Nov 2005
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2005georl..3221601w&link_type=abstract
Geophysical Research Letters, Volume 32, Issue 21, CiteID L21601
Mathematics
Logic
5
Oceanography: General: Diurnal, Seasonal, And Annual Cycles (0438), Oceanography: General: Physical And Biogeochemical Interactions, Oceanography: Biological And Chemical: Biogeochemical Cycles, Processes, And Modeling (0412, 0414, 0793, 1615, 4912), Oceanography: Biological And Chemical: Carbon Cycling (0428), Oceanography: Biological And Chemical: Ecosystems, Structure, Dynamics, And Modeling (0439)
Scientific paper
A physical-biogeochemical model is employed to estimate rates of nitrogen based primary production (PP*), net community production (NCP*), and new production (NP) in the equatorial Pacific. The model reproduces observed vertical differences between ammonium regeneration and uptake: uptake > regeneration above 40 m and uptake < regeneration below 40 m. As a result, NCP* exceeds NP in the upper 40 m, but decreases more rapidly with depth than NP. High surface NCP* appears across the entire upwelling region whereas high surface NP is found in the eastern equatorial Pacific with a much stronger spatial and temporal variability in NCP* relative to NP. The NCP*/PP* ratio shows a larger range (0.1-0.4) than the f-ratio (i.e., the NP/PP* ratio) (0.1-0.3). The zonal and vertical de-coupling between NCP* and NP is caused by the time lag between biological uptake and regeneration, and the advection of organic and inorganic nitrogen. The excess of NCP* over NP in the upper euphotic zone suggests the possibility of carbon over-consumption in the upper ocean of the equatorial Pacific with implications for predicting sinks/sources of CO2.
Busalacchi Antonio J.
Le Borgne Robert
Murtugudde Ragu
Wang XiuJun
No associations
LandOfFree
De-coupling of net community production and new production in the euphotic zone of the equatorial Pacific: A model study does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with De-coupling of net community production and new production in the euphotic zone of the equatorial Pacific: A model study, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and De-coupling of net community production and new production in the euphotic zone of the equatorial Pacific: A model study will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-1657613