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Format of Wave and Wind Data (Delayed Mode) from Chinese Stations

Data access to the wave and wind data (delayed mode) please click here >>, for other data and services please click

1.  Station Information

The wave and wind (delayed mode) data are from the following four Chinese stations:

Code Station
001Shidao
002Xiaomaidao
003Lianyungang
004Yinshuichuan

2. Naming Rule of Data File

The wave and wind data (delayed mode) files in the CDMDB are named according to the following rule:

YYYYMMNNN.XXX

YYYYMM indicates the observation time (YYYY is the year when making the observation and MM is the month when making the observation), NNN indicates the station code (see 1. Station Information).  XXX indicates the type of data, here is 'txt'.

3. Data Format

The format used for the delivery of the wave and wind data (delayed mode) is an ASCII (character) format.

The data are organized in the following manner. A Head record always appears first followed by one or more Data records. And the Remark records maybe appear following the data records in the end. The detail description of the fields of the format is as follows:

◇ Head Record

Column Parameter Description Condition
1Present record typeAlways '1'Indicator
2Next record typeAlways '2'Indicator
3Data type code  
4-7Observation station code  
8-15Data processing numberBlank 
16-23Order codeBlank 
24-25Latitude (degree)0-90(°)
26-27(minute)0-59(′)
28(minute to tenths)0-9 
29Latitude hemisphere'N' or 'S' 
30-32Longitude (degree)0-180(°)
33-34(minute)0-59(′)
35(minute to tenths)0-9 
36Longitude hemisphere'E' or 'W' 
37-40Observation time (year)YYYY 
41-42(month)MM,01-12 
43-48Instrument code  
49-51Height above the sea level of the coastal optical wave meter**.*m
52-55Horizontal distance of the optical wave meter apart from the buoy***.*m
56-58Direction of the optical wave meter to the buoy***(°)
59-61Open degree of observing point000-359(°)
62-64Buoy sensor depth**.*m
65-67Wind speed sensor height**.*m
68Depth code1=observed
2=no observation
 
69-71Observation point height above the sea level**.*m
72Wave accuracy code1=±10%
2=±15%
 
73Blank  

 

◇ Data Record

Column Parameter Description Condition 
1Present record typeAlways '2' 
2Next record type  
3-4Observation time (day)0-31 
5-6Observation time (hour)  
7-9Wind direction***(°)
10Indicator of wind directionblank 
11-13Wind speed**.*m/s
14Quality indicator  
15-16Indicator of wind speed sampling02=2 min average wind speed
10=10 min average wind speed
 
17Sea state0 – 9Grade
18-20Wave type  
21-23Wave direction***(°)
24Indicator of wave directionBlank 
25-27Swell direction***(°)
28Indicator of swell directionBlank 
29-31Maximum wave height**.*m
32Quality indicator  
33-35Period**.*s
36Quality indicator  
37Observation method code1=optical wave meter
2=eyes
3=auto recording
 
38-43Instrument code  
44-46One-tenth maximum Wave height**.*m
47Quality indicator  
48-50Period**.*s
51Quality indicator  
52Observation method code1=optical wave meter
2=eyes
3=auto recording
 
53-58Instrument code  
59-61Significant wave height**.*m
62Quality indicator  
63-65Period**.*s
66Quality indicator  
67Observation method code1=optical wave meter
2=eyes
3=auto recording
 
68-73Instrument code  
74-76Average wave height**.*m
77Quality indicator  
78-80Period**.*s
81Quality indicator  
82Observation method code1=optical wave meter
2=eyes
3=auto recording
 
83-88Instrument code  
89-91Number of wave  
92-94Depth water**.*m
96-128Blank  

 

◇ Remark Record

Column  Parameter Description Condition 
1Present record typeAlways '5' 
2Next record type  
3Number0-9 
4-128Remarks  

 

 

 


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NMDIS, SOA hosts the CDMDB for NRARGOOS web site
Document maintained by cdmdb@mail.nmdis.gov
Updated: Sep 4, 2011 10:12:05 GMT+8
http://near-goos.coi.gov.cn