General maritime meteorological observation system
SOAR (Shipboard Oceanographic and Atmospheric Radiation)
"MIRAI meteorological integrated dataset" is a set of "suitably composed data" which consists of 10-minute-average corrected Atmospheric
Pressure, Air Temperature, Relative Humidity, Wind Direction and Speed, Precipitation, Radiation, Sea Surface Temperature, and Wave Height
observed by R/V MIRAI. The correction and processing method was produced by Dr. K. Yoneyama (IORGC/JAMSTEC) in cooperation with
DMO. The actual data processing was conducted by DMO. See here for detailed
correction and processing method.
Location (from sea surface)
R.M. Young, USA
Vaisala, Finland with 43408 Gill aspired radiation shield R.M. Young, USA
Starboard and port side at compass deck (21m)
Sea-Bird Electronics, USA
Bow thruster room (-4.5m)
Setra System, USA
Weather observation room at captain deck (13m)
R.M. Young, USA
Wave height meter
Tair/RH sensor calibration date
Starboard side : 2016/11/15
Port side : 2016/11/18
Rain gauge calibration (Using the revision of rain data)
Minimum value (0.0 cc) : 0.80 mm
Maximum value (500.0 cc) : 50.36 mm
Date : 2017/08/22
If you would like the raw data set, please contact us from "Contact Us" above.
1) During the following period, PSP and PIR data are invalid due to the PRP system maintenance.
2017/08/24 03:20 - 2017/08/24 03:50
2) During the cruise, PRECIPITATION value is using optical rain gauge data for snow.
3) About PSP calibration
Under the influence of SOAR PRP PSP sensor trouble that occurred during MR16-09 leg1 cruise,
the PRP system configuration has been changed in comparison with the one when manufacturer calibration was done.
As a result, the original shortwave radiation value that the PSP system outputs was incorrect.
Shortwave radiation values available on this web site is a values corrected by using coefficients derived by self-calibration.
For details of the self-calibration result, please click here.