General maritime meteorological observation system
Instrument:
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.
Sensors
Type
Manufacturer
Location (from sea surface)
Anemometer
05106
R.M. Young, USA
Foremast (25m)
Tair/RH
HMP45A
Vaisala, Finland with 43408 Gill aspired radiation shield R.M. Young, USA
Starboard and port side at compass deck (21m)
Thermometer (SST)
SBE 3S
Sea-Bird Electronics, USA
Bow thruster room (-4.5m)
Barometer
F451
Yokogawa, Japan
Weather observation room at captain deck (14m)
Rain guage
50202
R.M. Young, USA
Foremast (24m)
Radiometer (shortwave)
PSP
Eppley, USA
Foremast (25m)
Radiometer (long-wave)
PIR
Eppley, USA
Foremast (25m)
Wave height meter
WM-2
Tsurumi-Seiki, Japan
Bow (10m)
Tair/RH sensor calibration date
Starboard side : 2004/08/26
Port side : 2004/08/26
Rain guage calibration (Using the revision of rain data)
Minimum value (0.0 cc) : 0.71 mm
Maximum value (511.5 cc) : 51.32 mm
Date : 2005/02/20
If you would like the raw data set, please contact us from "Contact Us" above.
Every 10 minutes* * Time stamp is set at the end of average
2
14-21
Julian day [DDD.DDDD]
f8.4
Every 10 minutes*
3
23-29
Longitude [0 to 360]
degree
f7.3 (999.999)
Location at time stamp East longitude
4
31-37
Latitude [-90 to 90]
degree
f7.3 (999.999)
Location at time stamp +: North latitude -: South latitude
5
39-44
Atmospheric pressure
hPa
f6.1 (9999.9)
10-minute mean*
6
46-50
Air temperature
deg-C
f5.1 (999.9)
10-minute mean* Data is selected on the windward side
7
52-56
Dewpoint temperature
deg-C
f5.1 (999.9)
10-minute mean* Calculated from 'Air temperature' and 'Relative humidity' using WMO's Formula(**) for liquid water ** WMO-No.8 (Guide to Meteorological Instruments and Methods of Observation)
8
58-62
Relative humidity
%
f5.1 (999.9)
10-minute mean* Data is selected on the windward side
9
64-70
Sea surface temperature (SST)
deg-C
f7.4 (99.9999)
10-minute mean* From EPCS/TSG
10
72-76
Wind speed (zonal)
m/sec
f5.1 (999.9)
10-minute mean* No anemometer height adjustment
11
78-82
Wind speed (meridional)
m/sec
f5.1 (999.9)
10-minute mean* No anemometer height adjustment
12
84-89
Rainfall intensity
mm/hr
f6.2 (999.99)
10-minute mean*
13
91-96
Short wave radiation(PSP)
W/m2
f6.1 (9999.9)
10-minute mean*
14
98-102
Long wave radiation(PIR)
W/m2
f5.1 (999.9)
10-minute mean*
15
104-108
Significant wave height
m
f5.2 (99.99)
Calculated every an hour Calculated every 3 hours, before March 2003
16
110-114
Wave period
second
f5.2 (99.99)
Calculated every an hour Calculated every 3 hours, before March 2003
