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Using Coupled Models to Study the Effects of River Discharge on Biogeochemical Cycling and Hypoxia in the Northern Gulf of MexicoWe describe emerging capabilities to understand physical processes and biogeoehemical cycles in coastal waters through the use of satellites, numerical models, and ship observations. Emerging capabilities provide significantly improved ability to model ecological systems and the impact of environmental management actions on them. The complex interaction of physical and biogeoehemical processes responsible for hypoxic events requires an integrated approach to research, monitoring, and modeling in order to fully define the processes leading to hypoxia. Our efforts characterizes the carbon cycle associated with river plumes and the export of organic matter and nutrients form coastal Louisiana wetlands and embayments in a spatially and temporally intensive manner previously not possible. Riverine nutrients clearly affect ecosystems in the northern Gulf of Mexico as evidenced in the occurrence of regional hypoxia events. Less known and largely unqualified is the export of organic matter and nutrients from the large areas of disappearing coastal wetlands and large embayments adjacent to the Louisiana Continental Shelf. This project provides new methods to track the river plume along the shelf and to estimate the rate of export of suspended inorganic and organic paniculate matter and dissolved organic matter form coastal habitats of south Louisiana.
Document ID
20100033462
Document Type
Conference Paper
Authors
Penta, Bradley
(Naval Research Lab. Bay Saint Louis, MS United States)
Ko, D.
(Naval Research Lab. Bay Saint Louis, MS United States)
Gould, Richard W.
(Naval Research Lab. Bay Saint Louis, MS United States)
Arnone, Robert A.
(Naval Research Lab. Bay Saint Louis, MS United States)
Greene, R.
(National Health and Environmental Effects Research Lab. Gulf Breeze, LA, United States)
Lehrter, J.
(National Health and Environmental Effects Research Lab. Gulf Breeze, LA, United States)
Hagy, James
(National Health and Environmental Effects Research Lab. Gulf Breeze, LA, United States)
Schaeffer, B.
(National Health and Environmental Effects Research Lab. Gulf Breeze, LA, United States)
Murrell, M.
(National Health and Environmental Effects Research Lab. Gulf Breeze, LA, United States)
Kurtz, J.
(National Health and Environmental Effects Research Lab. Gulf Breeze, LA, United States)
Herchenroder, B.
(Environmental Protection Agency Research Triangle Park, NC, United States)
Green, R.
(Naval Research Lab. Bay Saint Louis, MS United States)
Eldridge, P.
(Environmental Protection Agency Newport, OR, United States)
Date Acquired
August 25, 2013
Publication Date
January 1, 2009
Subject Category
Life Sciences (General)
Report/Patent Number
NRL/PP/7330-09-9348
AD-A526507
Meeting Information
Oceans ''09 MTS/IEEE Conference(Biloxi, MS)
Funding Number(s)
CONTRACT_GRANT: NNH07CA88I
Distribution Limits
Public
Copyright
Other
Keywords
COUPLED MODEL
BIOGEOEHEMICAL CYCLES
WU73-9364-09-5
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