What does temporal variability in aeolian dust deposition contribute to sea-surface iron and chlorophyll distributions?

Details What does temporal variability in aeolian dust deposition contribute to sea-surface iron and chlorophyll distributions? What does temporal variability in aeolian dust deposition contribute to sea-surface iron and chlorophyll distributions?

Apr 2008

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2008georl..3507607a&link_type=abstract

Geophysical Research Letters, Volume 35, Issue 7, CiteID L07607

Statistics

Computation

13

Global Change: Biogeochemical Cycles, Processes, And Modeling (0412, 0414, 0793, 4805, 4912), Oceanography: Biological And Chemical: Aerosols (0305, 4906), Computational Geophysics: Modeling (4255), Global Change: Oceans (1616, 3305, 4215, 4513), Oceanography: Biological And Chemical: Trace Elements (0489)

Scientific paper

Dust deposition is extremely variable over all timescales. Yet the impact of this variability on ocean biogeochemistry is currently not known, at least on the global scale. Here, we force a global model of ocean biogeochemistry over 1996 to 2001 with daily fields of dust deposition simulated by an atmospheric aerosol model. Our model results suggest that dust deposition explains a large part of the temporal variability of surface iron in the tropical regions and in part of the subarctic Pacific. However, while dust deposition is dominated by daily events, its impact on surface iron is maximal on interannual timescales. The largest fluctuations of surface iron produced by dust occur in oligotrophic regions where phytoplankton growth is not primarily controlled by iron availability. Consequently, the variability of surface chlorophyll induced by aerosol iron is predicted to be very small everywhere, especially relative to the impact of the ocean dynamics.

Affiliated with

Also associated with

No associations

Rating

What does temporal variability in aeolian dust deposition contribute to sea-surface iron and chlorophyll distributions? 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 What does temporal variability in aeolian dust deposition contribute to sea-surface iron and chlorophyll distributions?, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and What does temporal variability in aeolian dust deposition contribute to sea-surface iron and chlorophyll distributions? will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-1342708