【摘 要】
：
In order to know the current global carbon cycle,it is necessary to examine temporal and spatial variations in air-sea CO2 flux.We have reported the seasonal variation and the long-term trend of pCO2
【机 构】
：
Hokkaido University,Kita 10 Nishi 5,Kita-Ku,Sapporo,Hokkaido 060-0810,Japan
论文部分内容阅读
In order to know the current global carbon cycle,it is necessary to examine temporal and spatial variations in air-sea CO2 flux.We have reported the seasonal variation and the long-term trend of pCO2 sea in the western North Pacific Subtropical Gyre (NPSG) and the western equatorial Pacific [Inoue et al.,1995; Midorikawa et al.,2005].The western NPSG acts as a sink for atmospheric CO2 and the western equatorial Pacific as a weak source.In the western NPSG,seasonal variations in pCO2 sea are mainly controlled by variations in sea surface temperature (SST),the biological activities,and ocean dynamics.We reported that factors controlling carbonate system in the subtropics (between Hawaii and Japan) are seasonally variable.At the moment,however,to what extent these factors contributed to the air-sea CO2 flux is poorly understood in the wide area of the western North Pacific.Based on the pCO2 sea and pCO2 air data in the western North Pacific,we report the seasonal,inter-annual and the long-term trend of air-sea CO2 flux in the western North Pacific over the period from 1990 to 2004.
其他文献
Considering its size and potential importance,the ocean is surprisingly poorly characterised in terms of organic gases that play important roles in global atmospheric chemistry.In this project we aim
The ocean’s influence on volatile organic compounds (VOCs) in the atmosphere is poorly understood.This work characterises the oceanic emission and / or uptake of methanol,acetone,acetaldehyde,isoprene
Carbon monoxide (CO) and non-methane hydrocarbons (NMHC) are naturally produced from the ocean surface and this oceanic source,which can have an impact on the remote atmospheric chemistry,needs to be
The flux of DMS from the ocean to the atmosphere plays a major role in the marine atmospheric sulfur cycle.The oxidation of this biogenic sulfur to SO2 and subsequently to sulfate aerosol (which can a
We carried out experiments to evaluate the impacts of UV radiation (UVR,280-400nm) on photosynthetic carbon fixation of phytoplankton assemblages from coastal waters of the South China Sea during Marc
The importance and research progress in the estimation of sea-air fluxes of CO2 using remote sensing data in the recent years have been reviewed in this paper.Carbon flux estimation was based on the e
The distributions of dimethylsulfide (DMS) as well as particulate and dissolved fractions of dimethylsulfoniopropionate (DMSPp and DMSPd) were examined in the sea-surface microlayer (SML) and correspo
The atmosphere is widely recognized as a major source of Fe in the form of iron-containing dust.We sampled ten dusts from strong dust storm source regions and one dust from coastland Qingdao.This stud
Particles produced by secondary processes may play an important role in climate variability.Condensation Particle Counters (CPC) with different cut-off diameters (TSI CPC model 3025 (and 3776): D > 3n
Methyl iodide (CH3I) is the dominant organic iodine species in the marine atmosphere,and could be a source of iodine radicals potential for ozone destruction.The seasonality of atmospheric CH3I at dif