R/V Mirai MR01-K2 2001.5.14-28 Eastern Ocean of Japan Islands
(30-40N, 140-160E)
Participating Organizations
Institute of Low Temperature Science, Hokkaido University (ILTSa) Kimitaka Kawamura 
Institute of Low Temperature Science, Hokkaido University (ILTSb) Tatsuo Endo
Faculty of Engineering, Hokkaido University (HU) Sachio Ohta
Ocean Research Institute, University of Tokyo (ORI) Mitsuo Uematsu
Research Center for Advanced Science and Technology, University of Tokyo (RCAST) Yoshizumi Kajii
Faculty of Engineering, Keio University (KU) Shigeru Tanaka
Faculty of Science, Science University of Tokyo (SUT) Kazuhiko Miura
National Institute for Environmental Studies (NIES) Nobuo Sugimoto
Communications Research Laboratory (CRL) Hiroshi Kumagai
Japan Ocean Science and Technical Center (JAMSTEC) Kunio Yoneyama
Element Method
Atmospheric Chemical Measurements
Hi-vol air sampler and MOUDI impactor for water soluble  GC/FID and GC/MS Kawamura ILTSa
organic compounds 
Water soluble organic carbon (WSOC) carbon analyzer (TOC-5000) Kawamura ILTSa
Lipid class compounds (hydrocarbons, fatty acids, alcohols, etc.) GC and GC/MS Kawamura ILTSa
Non-methane hydrocarbons In situ GC analyses Kawamura ILTSa
water soluble and trace metal and carbon Low-volume sampling Ohta HU
Carbon (OC/TC) Carbon Monitor 5400 Uematsu ORI 
Org. N  Impactor sampling Uematsu ORI
Major inorg. Ions & trace metals HVDVI sampling Uematsu ORI
Rain chemistry  Rain samplers Uematsu ORI
NMHC, CH3Cl, CO, O3, SO2 Kajii RCAST
Low volume aerosol sampler for soluble ions analysis  IC Tanaka KU
(Cl-, NO3-, SO42-, Na+, NH4+, K+, Mg2+, Ca2+)
Low volume aerosol sampler for trace metals analysis LA/ ICP-MS Tanaka KU
(Al, Ti, V, Cr, Mn, Fe, Ni, Co, Cu, Zn, As, Se, Sb, Cd, Pb)
Automatic continuous measurement system  DDS/HPLC Tanaka KU
for HCHO and CH3CHO in the atmosphere
Automatic continuous measurement system for acidic  DS/IC Tanaka KU
and basic gases (HCl, HNO3, SO2 and NH3) in the atmosphere
Automatic continuous measurement system DS/IC Tanaka KU
for inorganic halogen gases (Cl2, Br2) in the atmosphere
Automatic continuous measurement system  DS/HPLC Tanaka KU
for H2O2 in the atmosphere
Automatic continuous measurement system for biogenic  Cold Trap/GC Tanaka KU
sulfur compounds (DMS, COS and MeSH) in the atmosphere
Elemental composition of individual particles impactor, SEM/EDX Miura SUT
(surface and upper, Kytoon observation) 
Radon and Thoron concentration Radon and Thoron monitor Miura SUT
Aerosol Physical and Optical Measurements
Size distribution  OPC RION KC-18 Uematsu ORI
Size distribution SMPS, OPC RION KC-01 Miura SUT
Vertical profile of number concentration Kytoon observation (OPC sonde) Miura SUT
Extinction coefficient Total nephelometer  Ohta HU
Absorption coefficient Aethalometer Ohta HU
Vertical Profile of extinction coefficient Lidar Sugimoto NIES
Radiation Measurements
Optical thickness and volume distribution in column Sky radiometer (Prede) Endo ILTSb
Optical thickness Portable Sunphotometer Miura SUT
cloud base and top heights, vertical profiles of backscattering  95GHz radar(cloud radar) Kumagai CRL
coefficients, vertical profiles of Doppler velocity
liquid water path, column amount of water vapor microwave radiometer Kumagai CRL
Shortwave irradiance(W/m^2) PSP(Precision Spectral Pyranometer) Yoneyama JAMSTEC
Longwave irradiance(W/m^2) PIR(Precision Infrared Radiometer) Yoneyama JAMSTEC
Direct and Diffuse Irradiance (W/m^2) FRSR(Fast Rotating Shadowband Spectral Radiometer) Yoneyama JAMSTEC
Sky Images, Cloud Faction Total Sky Imager(TSI) Yoneyama JAMSTEC
Meteorological Measurements
Surface elements routine