MIRAI MR05-05 Leg2 Navigation

Last Modified: 2012-11-25
: MR05-05 Leg2
: Processed (DMO)-QCed
:
:

For Using Data

Data Management Office
See Terms and Conditions about constrain of use.
See Terms and Conditions about data citation.
Instrument:
Radio navigation system
The following information is continuously collected and recorded as the Navigation QCed data during the cruise of R/V MIRAI. 
 Location
 Meteorological elements
 Surface temperature
 Current direction and velocity
 Water depth 
 Data are recorded every one minute, and data file named after cruise code.
Manufacturer: SENA Co., Ltd.
Model: Sena Advanced Integrated Navigation System version 19 for MIRAI
Data format version 02.6
1)GPS receiver
Manufacturer: Leica Geosystems AG
Model: MX9400N
Location: Navigation deck [starboard side]
Output data: raw, NMEA
Manufacturer: Leica Geosystems AG
Model: MX9400N
Location: Navigation deck [port side]
Output data: raw, NMEA
Manufacturer: Trimble Navigation Limited
Model: 4000DS
Location: Navigation deck [starboard side]
Output data: NMEA
Manufacturer: Trimble Navigation Limited
Model: 4000DS
Location: Navigation deck [port side]
Output data: NMEA
2)Doppler sonar
Manufacturer: FURUNO ELECTRIC CO., LTD.
Model: DS-30
Range: Ship speed: -10.00 - +40.00knot [Cross direction]
    -9.99 - +9.99knot [Horizontal direction]
  Current direction and speed: 0.0 - 9.9knot [All direction]
Accuracy: Current speed: +-(2.0%+0.2knot)
3)Multi narrow beam echo sounder
Manufacturer: SEABEAM INSTRUMENTS
Model: Sea Beam 2112.004
Frequency: 12kHz
Range: 50 - 11000m
4)Anemometer
Manufacturer: Koshin Denki Kogyo Co., Ltd.
Model: KE-500
Altitude: 24m (above sea level)
Starting wind speed: 2m/s or less
Durability: 90m/s
Accuracy: 10m/s or less +/-0.5m/s
  10m/s or more +/-5%
Please see the 'data set' and 'readme' for the detail of the following observation.
Air temperature: Meteorological data
Sea surface temperature: EPCS/TSG
Atomospheric pressure: Meteorological data
Relative humidity: Meteorological data
Water depth: Bathymetry
Current direction/speed: ADCP
: MR05-05 Leg2
: Processed (DMO)-QCed
:
:

Observation Map

Figures

Data List

  File names
MR05-05_leg2.dat
: MR05-05 Leg2
: Processed (DMO)-QCed

Navigation Qced

The one record of this data has 117 bytes of data part and 12 bytes of flag part.
  1. Data part
No. Column Content Format Unit Remarks
1 1 - 8 Date i4,i2,i2
YYYYMMDD (UTC)
2 10 - 15 Time i2,i2,i2
hhmmss (UTC)
3 17 - 19 Datum a3
W84:WGS84
TD_:TOKYO DATUM
4 21 - 31 Latitude i2,x1,f7.4,a1 degree - minute dd-mm.mmmmN(S)
5 33 - 44 Longitude i3,x1,f7.4,a1 degree - minute ddd-mm.mmmmE(W)
6 46 - 49 Ship speed
(Ground)
f4.1 knot
7 51 - 55 Course
(Ground)
f5.1 degree
8 57 - 60 Ship speed
(Water)
f4.1 knot *1
9 62 - 66 Gyro f5.1 degree
10 68 - 72 Air temperature f5.1 deg-C
11 74 - 78 Sea surface temperature
(SST)
f5.2 deg-C
12 80 - 85 Atmospheric pressure f6.1 hPa Adjusted to the sea surface level
13 87 - 89 Relative humidity i3 %
14 91 - 93 True wind direction i3 degree Averaged over the previous 6 seconds
15 95 - 98 True wind speed f4.1 m/sec Averaged over the previous 6 seconds
No anemometer height adjustment
16 100 - 106 Depth f7.1 m
17 108 - 112 Current direction f5.1 degree Calculated value
18 114 - 117 Current speed f4.1 knot Calculated value
  1. Flag part
No. Column Description Format Remarks
19 119 Flag 1 i1 QC flag for 'Latitude' and 'Longitude'
20 120 Flag 2 i1 QC flag for 'Ship speed (Ground)'
21 121 Flag 3 i1 QC flag for 'Course (Ground)'
22 122 Flag 4 i1 QC flag for 'Ship speed (Water)'
23 123 Flag 5 i1 QC flag for 'Gyro'
24 124 Flag 6 i1 QC flag for 'Air temperature'
25 125 Flag 7 i1 QC flag for 'Sea Surface Temerature (SST)'
26 126 Flag 8 i1 QC flag for 'Atmospheric pressure'
27 127 Flag 9 i1 QC flag for 'Relative humidity'
28 128 Flag 10 i1 QC flag for 'Wind direction' and 'Wind speed'
29 129 Flag 11 i1 QC flag for 'Depth'
30 130 Flag 12 i1 QC flag for 'Current direction' and 'Current speed'
  1. *1 The plus and minus sign of No.8 [Ship speed (Water)] about R/V KAIREI indicates the velocity of direction of a bow and stem.
  2. * The terminator of each record is 'CR+LF' code.
  3. * Missing value and format error value are filled with '9'.

  1. Definition of Quality Control Flags
Flag 1 : Longitude and Latitude
1 - accepted
2 - questionable value
4 - failed in location check
9 - system error or input error

Flag 2 : Ship speed (ground)
1 - accepted
2 - questionable value
4 - failed range check (under 20 knots)
9 - system error or input error

Flag 3 : Course (ground)
1 - accepted
2 - questionable value
4 - failed range check (0 ~ 360 degree)
9 - system error or input error

Flag 4 : Ship speed (water)
1 - accepted
4 - failed range check (under 20 knots)
9 - system error or input error

Flag 5 : Gyro
1 - accepted
4 - failed range check (0 ~ 360 degree)
9 - system error or input error

Flag 6 : Air temperature
3 - assumed good*
4 - failed range check (-20 ~ 40 degC)
9 - system error or input error

Flag 7 : Sea surface temperature
3 - assumed good*
4 - failed range check (-3 ~ 37 degC)
9 - system error or input error

Flag 8 : Atmospheric pressure
3 - assumed good*
4 - failed range check (890 ~ 1040 hPa)
9 - system error or input error

Flag 9 : Relative humidity
3 - assumed good*
4 - failed range check (0 ~ 100 %)
9 - system error or input error

Flag 10 : Wind direction and wind speed
3 - assumed good*
4 - failed range check (0 ~ 360 degree : wind direction, 0 ~ 60 m/s : wind speed)
9 - system error or input error

Flag 11 : Depth
3 - assumed good*
4 - failed range check (4 ~ 11000 m)
9 - system error or input error

Flag 12 : Current direction and current speed
3 - assumed good*
4 - failed range check (0 ~ 360 degree : current direction, 0 ~ 5 knots : current speed)
9 - system error or input error

* 'assumed good' means that this data passed range check but may contains leap or inappropriate zero.

Related Information

Update History

2012-11-25
An observation data was registerd.