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Accession Number PB2014-100368
Title Land-Coastal Ocean Interactions in the Tropics and Subtropics: Hawaii as An Example.
Publication Date 2013
Media Count 76p
Personal Author D. Dumas E. H. De Carlo F. T. Mackenzie M. W. Guidry
Abstract The culture, subsistence, and welfare of tropical and subtropical Pacific Island Nation people are all in some way tied to the interactions between the land and the adjacent and surrounding coastal waters. Land use plays an important role in the relative chemical species distribution and concentrations of particulate and dissolved nutrients that reach coastal waters by riverine, groundwater, and atmosphere. Some key human activities on land that affect coastal waters through land-sea connections and interactions are: (1) the application of nitrogenous and phosphorus-bearing fertilizers and biocides to the landscape and subsequent leaching of significant proportions of these materials into water courses, (2) the release of sewage into aquatic systems, including directly into coastal ocean waters, (3) the diversion of water flows through channelized structures and dams resulting in changes in retention times of water, nutrients and sediments and also in riparian communities on land and hence changes in water, nutrient and suspended sediment fluxes to the coastal ocean, (4) deforestation and/or conversion of land type from, for example, agricultural use to urban housing, (5) the fallout of nitrogen from the atmosphere derived from combustion sources on land and its ultimate transport into aquatic systems, (6) CO2 emissions from fossil fuel and land-use activities (e.g., deforestation) and absorption of some of this CO2 by coastal and open ocean waters, and (7) atmospheric nitrogen emissions from combustion sources on land that ultimately fall directly on the ocean surface, and especially that of the coastal ocean.
Keywords Aquatic systems
Coastal areas
Coastal impacts
Hawaii
Interactions
Land
Ocean
Ocean management
Streams
Subtropical regions
Tropical regions


 
Source Agency National Oceanic and Atmospheric Administration
NTIS Subject Category 47C - Physical & Chemical Oceanography
48G - Hydrology & Limnology
55C - Meteorological Data Collection, Analysis, & Weather Forecast
Corporate Author Hawaii Univ., Honolulu. Sea Grant Coll. Program.
Document Type Technical report
Title Note N/A
NTIS Issue Number 1403
Contract Number N/A

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