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Land – Coastal Ocean Interactions in the Tropics and Subtropics: Hawai’i as an example

In this case study volume, we investigate the interaction between the global coastal ocean in subtropical and tropical regions and the adjacent land via stream and overland runoff, atmospheric transport, and groundwater flow. Coastal zone management issues are discussed in the context of the science presented. The case study uses to a significant extent the data accumulated from many years of work done, for example, in Käne‘ohe Bay and its watersheds on O‘ahu, Hawai‘i, USA, regarding biogeochemical processes and dynamics related to carbon (C) and its associated driver nutrients of nitrogen (N) and phosphorus (P), and to a lesser extent silicon (Si) and suspended solids. The case study provides insights into how natural and human activities on land and resulting inputs (fluxes) to the coastal ocean affect the biogeochemical cycles of C, N, P, and Si in of the current interests in rising atmospheric CO2 concentrations and ocean acidification, the study focuses on the C cycle of the bay and influences of fluvial inputs on the cycle. It is anticipated that the principles and conclusions outlined in this case study might be extended to other subtropical/tropical regions and should at least provide the reader with an understanding of the nature of land-coastal ocean linkages in one important type of coastal ocean setting.

 
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PDF icon Land-coastal case study
Publication Date
February 2007