1. Cruise Plan for R/V Mirai Arctic Cruise in 2010
Motoyo Itoh
T. Kikuchi, S. Nishino, J. Inoue,
Y. Kawaguchi and M.E. Hori
JAMSTEC, Japan

2. R/V Mirai Arctic Cruise in summer 2010
Sekinehama, Japan on August 25
Dutch Harbor, US, on September 2
Arctic Ocean (45 days)
Dutch Harbor, US, on October 16

3. Expand the target to the whole of the Pacific Arctic Ocean.
JAMSTEC-DFO collaboration since 2002
Expand the target to the whole of the Pacific Arctic Ocean.
R/V Mirai
Makarov
Basin
Canada
Basin
CCGS Louis S.
St. Laurent
Chukchi Sea
Alaska
Siberia 3

4. R/V Mirai Arctic Cruise in 2010
2010/9/2 Dutch Harbor～10/16 Dutch Harbor
Hydrographic observation
that covers the entire Makarov Basin
Mooring Array to monitor Pacific water inflow through Barrow Canyon
Mooring with Sediment Trap
to examine biological activity.
Makarov
Basin
Canada
Basin
Chukchi Sea
Alaska
Siberia
Mooring with IPS
to examine the sea ice thickness and mixed layer development. 4

5. Summary of measurements of R/V Mirai 2010
Radiosonde, Doppler radar, could radar, other meteorological observations
CTD with LADCP, XCTD
Turbulence measurements by TurboMAP
Mooring and Surface buoy operations
Water sampling for Sal, Oxy, Nut, Chl-a, alkalinity, TOC, POC, del-O18
Carbon uptake experiments
Underway measurement by ship-mounted ADCP, surface water monitoring system (T,S,DO etc), surface meteorology monitoring
Bio-optical observation PI: Dr. Univ
Zoo plankton net tows PI: Dr. Univ
Mooring deployment (with two sediment traps) PI: Dr.
Microbial communities observation PI: Dr. Tsukuba Univ
Piston corings PI: Dr. National Institute for Environmental Study