Surface flow direction flow rate data that can be downloaded from this site is a file in text format. Data file is as follows.

< File name >

Value	Meaning
morsets_TOTL_MUTU	Fixed prefix
YYYY	Data acquisition year (2014 - )
MM	Data acquisition month (01 - 12)
DD	Data acquisition date (01 - 31)
hhmm	Data acquisition hour (0000 - 2359)
tuv	Extension

< Header section >

Value	Meaning
Probable	Outliers in the data does not exist
Questionable	There is a value that seems abnormal to data

Value	Meaning
SiteContributer#n n = 1　Esan n = 2　Ohata n = 3　Iwaya	Station there is a data error of suspicion
None	Anomaly is not observed data in three stations both
Unknown	Is unknown data quality of the local station

[Format]
YYYY MM DD  hh mm ss (Example) 2014 04 01  00 00 00

[Value: Fixed] The +9 hours Asia / Tokyo time on the basis of the UTC
"UTC+9" +9.000 0 0 "Asia/Tokyo"

[Value: Fixed] Latitude and longitude of the reference position of the data
41.6737833 141.3629500

[Value: Fixed] Datum equatorial circumference flat rate of data
"WGS84" 6378137.000  298.257223562997

＜Data section: Each item in the separator is a multiple of consecutive spaces＞

Longitude (deg)

Longitude (A positive number indicates the east longitude) Unit: Angle

Latitude (deg)

Latitude (A positive number indicates the north latitude) Unit: Angle

U comp (cm/s)

East direction of flow velocity (U value) Unit: cm/sec

V comp (cm/s)

North direction of flow velocity (V value) Unit: cm/sec

VectorFlag (GridCode)

Vector indicator flag

Value	Meaning
+1	For invalid grid points, it is not the data output
+2	Lattice point is close to the coastline
+4	Including observation grid points is one point, such as ADCP
+16	It is a result that has been interpolated across the baseline
+32	Flow velocity vector is greater than the maximum flow rate limit
+128	Vector is outside the observed range (only used for line-of-sight direction data)
+256	Synthetic vector is not obtained a sufficient angular resolution from the line of sight method of data
+512	Vector is hidden and should not be normally displayed
+2048	Vector is interpolated
+4096	Since the vector is a questionable quality, not normally be used (displayed)

U StdDev Quality

The quality factor of the U value (standard deviation)
*999.000 indicate that it has not been calculated

V StdDev Quality

V value quality factor of the (standard deviation)
*999.000 indicate that it has not been calculated

Covariance Quality

Covariance of the vector
*999.000 indicate that it has not been calculated

X Distance (km)

Distance to the east direction from the reference position Unit: km

Y Distance (km)

Distance to the north direction from the reference position Unit: km
*Negative flow rate indicates the flow direction change of 180 degrees

Range (km)

Distance from the reference position Unit: km

Bearing (True)

Angle from the reference position Unit: Angle

Velocity (cm/s)

Flow speed (flow rate) Unit: cm/sec

Direction (True)

Flow direction (flow direction) Unit: Angle
*Clockwise from the north direction

Site Contributors　#n

Number of vector from each site

• n = 1　Esan
• n = 2　Ohata
• n = 3　Iwaya

FLAG

Data quality flag

Value	Meaning
T	It exceeds the upper limit value set flow rate (flow velocity)
H	The data is not displayed in Fig.