Oceans

Hurricane Isabel generated an unusual fall bloom in Chesapeake Bay

  1. W. David Miller1,
  2. Lawrence W. Harding Jr.1,2,
  3. Jason E. Adolf3

Article first published online: 28 MAR 2006

DOI: 10.1029/2005GL025658

Issue

Geophysical Research Letters

Geophysical Research Letters

Additional Information

How to Cite

Miller, W. D., L. W. Harding Jr., and J. E. Adolf (2006), Hurricane Isabel generated an unusual fall bloom in Chesapeake Bay, Geophys. Res. Lett., 33, L06612, doi:10.1029/2005GL025658.

Author Information

  1. 1

    Horn Point Laboratory, Center for Environmental Science, University of Maryland, Cambridge, Maryland, USA

  2. 2

    Maryland Sea Grant College, University of Maryland, College Park, Maryland, USA

  3. 3

    Center of Marine Biotechnology, Biotechnology Institute, University of Maryland, Baltimore, Maryland, USA

Publication History

  1. Issue published online: 28 MAR 2006
  2. Article first published online: 28 MAR 2006
  3. Manuscript Accepted: 17 FEB 2006
  4. Manuscript Revised: 13 FEB 2006
  5. Manuscript Received: 30 DEC 2005

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[1] Ocean color measurements from aircraft revealed an unusually strong fall bloom of phytoplankton in Chesapeake Bay after passage of Hurricane Isabel in September 2003. Flights conducted before (11 September) and after (24 September) Isabel showed a two-fold increase of chlorophyll-a (Chla) covering ∼3000 km2 of the mid- to lower Bay, with an abrupt return to long-term average (LTA) Chla by early October. Wind mixing induced rapid de-stratification of the water column, injecting nitrogen (N) into the euphotic layer that supported a fall bloom of diatoms. Here we quantify a significant perturbation of the annual phytoplankton cycle in Chesapeake Bay, driven by Hurricane Isabel.

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