GEOTRACES Japan Cruise Status

maintained by Japan Oceanographic Data Center.                       last updated on  31 Oct. 2017

Ship Name

R/V Hakuho-Maru

Responsible Organization

Atmosphere and Ocean Research Institute, University of Tokyo (AORI, UT)

Address: 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8564, Japan

Cruise No.

KH-11-07

Cruise Status

Completed

Departure

16 July 2011

Arrival

4 August 2011

Research Area

Western North Pacific Ocean

Objectives

 The KH-11-7 Cruise of R/V Hakuho Maru was planned to pursue biogeochemical study of trace elements and their isotopes in the northwest Pacific Ocean. Due to the Fukushima Daiichi nuclear power plant accident prior to the cruise, we also studied cold seep biogeochemistry and earthquake mechanisms/radionuclide impact study in the western North Pacific.

The specific objectives and contents of this cruise are as follows: 1) To understand the spatial distribution of trace elements and their isotopes in the vertical profiles in the northwest Pacific Ocean; 2) To examine the distribution of trace metal concentrations and their speciation relating to biological activity and to elucidate their controlling mechanisms in the northwest Pacific Ocean; 3) To estimate primary production using chlorophyll a by satellite and field observation to clarify the correlation between nutrient variation and primary production; 4) Volatile organic compounds released by marine phytoplankton; 5) Microbial and isotopic geochemical studies in the epicenter and surrounding waters off Northeast Pacific Ocean; 6) Analysis of seabed ground deformation in the tsunami source area and epicentral area off Northeast Pacific Ocean; 7) To examine radioactive material transport off Fukushima and surrounding areas.

Principle Investigator

J. Zhang (Univ. of Toyama)

Related Project

GEOTRACES

Cruise Type

GEOTRACES transection cruise (GP18)

Chief Scientist for GEOTRACES

Jing Zhang (Dr.)

Environmental Biology and Chemistry,

Graduate School of Science and Engineering,

University of Toyama

Address: Gofuku 3190, Toyama, 930-8555 Japan

Tel: +81-76-445-6665, Fax:+81-076-445-6549

E-mail: jzhang (a) sci.u-toyama.ac.jp

Cruise Metadata

First Submission: 03Sep 2016

Update:

Report

Cruise Summary Report: not yet

Cruise Report: not yet

Observation Items

Item/Parameters

Number

Responsible Scientist

Data Submission

JODC Ref.No

Routine Data

 

 J. Zhang

Aug2016/Jun2017

 20170098

Trace element:

Fe, Al, Zn, Mn, Cd, Cu, Pt, Pd, Au, Co, Ni, Pb

 

 Y. Sohrin

/H.Obata

Apr2016

 20170098

Trace element:

Bi

 

 Y.Sohrin

 

 

Trace element:

Se

 

Y.Nakaguchi

 

 

Trace element:

REFs

 

J.Zhang

 

 

Stable isotopes:

dCu, dW

 

Y.Sohrin

 

 

Radiogenic isotopes:

Nd, Pb

 

H.Obata/C.Gallon

 

 

Others:

PFAs, PFOS

 

N. Yamashita

 

 

Others:

3He/4He

 

Y.Sano

 

 

Others:

236U, 135Cs

 

A. Sakaguchi

 

 

Others:

131I, 134Cs and 137Cs

 

S. Otosaka

 

 

Others:

129I

 

S. Otosaka

 

 

Others:

134Cs, 137Cs, 90Sr, and Pu isotopes

 

J. Zheng

 

 

Others:

VOCs

 

A. Ooki

 

 

Others:

Nd isotopes and Cd/Ca

 

K. Horikawa

 

 

Others:

Cd isotopic compositions

 

C. Zurbrick & A. R. Flegal

 

 

 Others:

Benthic foraminiferal 13C

 

 Y. Okazaki

 

 

Cruise Track

 

Note