Online Report of The Hakuho Maru Cruise KH-07-1 Leg 2

Observations of water masses, circulation, and turbulence in the Northwest Pacific Basin

Cruise Period

9 May 2007 - 8 June 2007

Port of Departure

Hakodate, Japan

Port of Return

Tokyo, Japan

Objectives and Brief Narrative of Cruise

The aims of the cruise are to study (1) the variability of the deep ocean circulation flow (current meter and CTD mooring), (2) the distribution of the deep water mass in the western North Pacific (CTD with water sampling and lowered ADCP), (3) the vorticity distribution in the Kuroshio Extension (shipboard ADCP and XCTD), (4) the advection and dissipation processes of the subtropical mode water (CTD with water sampling, lowered ADCP, shipboard ADCP, and XCTD), (5) the physical/chemical/biological processes of the system of the subtropical mode water and seasonal pycnocline (CTD with water sampling, XCTD, and fast repetition rate fluorometer), (6) estimating vertical turbulent diffusivity with observing density ratio and energy dissipation ratio (CTD with water sampling, XCTD, and turbulence-microstructure acquisition profiler), (7) the ocean circulation with ARGO floats, and (8) the distribution and ecology of floating seaweeds and sessile organisms in the northwest Pacific.

Table of Contents

1. List of Scientists Aboard
2. Track Charts
3. Summary of Observation stations
4. Mooring Systems