Description

This volume comprises the final report of the research project entitled the Dynamics of the Deep Ocean Circulation. The layered structure of the subsurface circulation, which had been predicted in the hypothetical model proposed prior to the research, is verified through Eulerian and Lagrangian measurements of current. By the use of the numerical model, the deep circulation of the Philippine Sea, which has been long supposed to be isolated from the North Pacific, is revealed to be derived in close association with that of the latter ocean. Behavior of the deep current around the equator is also clarified by numerical modeling. By the extensive use of sediment trapping technology, it becomes clear that sinking sediments play an important role in the distribution of chemical substances in the deep ocean. Graduate students in the field of oceanography will find this a good textbook.

Table of Contents

Preface. (T. Teramoto). 1. Motivation of the Project Research and a Hypothetical Circulation Model Presented Prior to the Research (T. Teramoto). 2. Structure of Subsurface Water Circulation and Associated Distribution of Water Properties. Deep Water Properties and Circulation in the Western North Pacific (M. Kawabe). Density Field along 12°N and 13°N in the Philippine Sea (K. Uehara, K. Taira, A. Masuda). Abyssal Boundary Current along the Northwestern Perimeter of the Philippine Basin (M. Chaen et al.). Deep Circulation in the Shikoku Basin Measured with the SOFAR Floats (K. Taira, D. Yanagimoto). 3. Circulation and Mixing of Water as Deduced from Distribution of Chemical Tracers. Chemistry and the Oceans: An Overview (Y. Nozaki). Philippine Sea Abyssal Waters in the Northwestern Pacific: Characterization from Tracer-Tracer Diagrams (T. Gamo). Dynamics of the Japan Sea Deep Water Studied with Chemical and Radiochemical Tracers (S. Tsunogai et al.). Instrumental Development for Measurement of Phosphate in Seawater and Some Discussion of Nutrient Distributions in the North Pacific (K. Fujiwara, H. Tsubota). Actinium-227: A Steady State Tracer for the Deep-sea Basin-wide Circulation and Mixing Studies (Y. Nozaki). Distributions and Mass-balance of 239,240Pu and 137Cs in the Northern North Pacific (Y. Nagaya, K. Nakamura). Trace Metals in the North Pacific - Recent Development of Clean Techniques and their Applications to Ocean Chemistry (H. Tsubota, S. Nakamura, K. Shitashima). Distribution of Dissolved Organic Nitrogen in the North Pacific Ocean (Y. Maita, M. Yanada). Determination of Some Oxyacid Elements and Manganese in Seawater and their Distributions in Some Unique Environments of the North Pacific (E. Nakayama, Y. Sohrin, K. Isshiki). 4. Vertical Flux of Chemical Substances and their Behaviours in the Deep Oceans. Seasonal Variation of Lithogenic Flux in Japan T

Details

No. of pages:
379
Language:
English
Copyright:
© 1993
Published:
Imprint:
Elsevier Science
Print ISBN:
9780444889614
Electronic ISBN:
9780080870977