Serial Station Data (Water samplers, STD, CTD, BT)
Data Format of Serial Station Data
Serial Station Data can be downloaded with the JODC standard format and ODV spreadsheet.(NetCDF is under adjustment)
JODC Standard Format
- Structure of data file
- This is what a collection of various data of one station worth followed by only the number of station
- Data structure for 1 station
-
- Header Record x 1
- Initially, one record only exists.
- Comment Record (if necessary)
- Data Record x (number of record)
- Exists, as much as necessary after the header record
Number of record : number of data type x (number of observation per 1 station /6) (any fraction shall be rounded up)
Header Record
| Field | Item 1 | Item 2 | Format | Item Explanation |
|---|---|---|---|---|
| 001-001 | Header Information | A1 | Discriminate the header record Always "Ｈ" |
|
| 002-002 | End of Station | A1 | End of measuring Always "C" |
|
| 003-017 | Location | Latitude | I2，I2，I2，A1 | ddmmssN(S) |
| Longitude | I3，I2，I2，A1 | dddmmssE(W) | ||
| 018-025 | Date | Year, Month, Day | I4，I2，I2 | yyyymmdd(GMT) |
| 026-031 | Time | Hour, Minute, Second | I2，I2，I2 | hhmmss (hour, minute, second) (GMT) |
| 032-033 | Country Code | A2 | Refer to Country Code(PDF) | |
| 034-038 | Observation Institution Code | A1，A2，A2 | Refer to Observation Institution Code but the code beginning with @ means WOD Code. | |
| 039-045 | Vessel Code or ID Code | A7 | Identification No of Vessel Code, Buoy, etc. Non-conversion code from the old code is denoted by the "_" to the head of the old one, but the code beginning with @ means WOD Code |
|
| 046-048 | Navigation Number | I3 | Numbers with automatic numbering by year and vessel call sign | |
| 049-052 | Project Code | A4 | Refer to Project Code (PDF) but the code beginning with @ means WOD Code | |
| 053-058 | Project Restriction | Year, Month | I4，I2 | Months/Years capable of providing |
| 059-062 | Water | Water Colour | A2 | Refer toWeather Related Code (PDF) |
| Transparency | A2 | Unit ：m | ||
| 063-068 | Wind | Wind Direction | I3 |
360 degrees indication Left-justified if the accuracy falls |
| Wind Speed | F3.1 A1, I2* |
Unit: 00.0m/s *Denote "L" to the head for Japan Meteorological Agency Wind Power class (PDF) |
||
| 069-075 | Wind Wave | Direction | I3 | 360 degrees indication |
| Wave Height | F3.1 A1, 1X, I1* |
Unit : 00.0 m * Denote “L”to the head for Japan Meteorological Agency Wind Wave class (PDF) |
||
| Cycle | A1 | Unit : seconds Denote the alphabet in ascending order, if it exceeds 9 seconds, A:10 seconds, B:11seconds, C:12 seconds, ... |
||
| 076-082 | Swell | Direction | I3 | Unit : degrees |
| Height of Swell | F3.1 A1, 1X, I1* |
Unit : 00.0 m * Denote "L" to the head for Japan Meteorological Agency swell class (PDF) |
||
| Cycle | I1 | Unit : seconds Denote the alphabet in ascending order if it exceeds 9 seconds A:10 seconds, B:11seconds, C:12 seconds, ... |
||
| 083-086 | Air Temperature | Value of Dry Bulb | F4.1 | Unit : 000.0 degree |
| 087-088 | Humidity | I2 | Unit : % 2 digits | |
| 089-090 | Weather | A2 | WMO code 4501 or WMO code 4677 (Refer to Weather Related Code (PDF) | |
| 091-094 | Cloud | Cloud Amount | I2 | WMO code 2700 (Refer to Weather Related Code (PDF) |
| Cloud Form | A2 | WMO code 0500 (Refer to Weather Related Code (PDF) | ||
| 095-099 | Pressure | F5.1 | Unit ：0000.0hPa | |
| 100-101 | Visibility | I2 | Unit ： km | |
| 102-102 | Station Information Error Flag | A1 | Flag in case there is an error data in the observation spot information in the header. Refer to Station Information Error Flag (PDF) |
|
| 103-103 | Data Record Error Existence Flag | A1 | Flag in case there is an error data in the data recorder within the station. Refer to Data Record Error Existence Flag (PDF) |
|
| 104-107 | Reference No (1) | A４ | Reference Number to be given in JODC (receipt No : year) | |
| 108-111 | Reference No (2) | A4 | Reference Number to be given in JODC (receipt unit: serial number of the year) | |
| 112-115 | Reference No (3) | A4 | Reference Number to be given in JODC (serial number in the receipt unit: file unit) |
Comment Record
| Field | Item 1 | Item 2 | Format | Item Explanation |
|---|---|---|---|---|
| 001-001 | Record Type | A1 | C: Comment | |
| 002-002 | Station End Flag | A1 | E: End of measuring D: End of comment C: Follow the comment |
|
| 003-115 | Comment | A* |
Data Record
| Field | Item 1 | Item 2 | Format | Item Explanation |
|---|---|---|---|---|
| 001-001 | Record Type | A1 | H:header, D:data, C:comment | |
| 002-002 | Station End Flag | A1 | E: End of station D: End of data type C: Follow the data |
|
| 003-004 | Data Type | A2 | Refer to Data Type Code Table (PDF) | |
| 005-009 | Measuring Unit Code | Large Classification | A2 | Refer toMeasuring Unit Code Table (PDF) |
| Measuring Unit Code | Small Classification | A3 | Refer to Measuring Unit Cod Table (PDF) | |
| 010-017 | Data Unit | A8 | Refer to Data Unit Code Table (PDF) | |
| 018-019 | Bathymetry Unit | A2 | Refer to Bathymetry Unit Code Table (PDF) | |
| 020-020 | Number of Digits | Number of Digits of Data | I1 | Number of digits of data column |
| 021-021 | Exponent | Number of Digits below the Decimal Point of Data | I1 | Number of digits below the decimal point, out of data columns |
| Each Data Item 1 | Bathymetry | F6.1 | Unit : 00000.0m | |
| Each Data Item 2 | Data | Undecided | Observation value Format is determined by "Number of Digits" and &auot;Exponent" |
|
| Each Data Item 3 | Data Accuracy | A1 | Refer to Data Accuracy Code Table (PDF) | |
| Each Data Item 4 | Data Processing Flag | Ａ1 | Refer to Data Processing Flag Table (PDF) |
ODV Spreadsheet Format
ODV spreadsheet is a format adopted by the oceanographic data visible software, Ocean Data View developed by the Ocean Data View of Germany and employs more restricted generic format. This is a high readable tab-delimited ASCII text format.
Data Indication Example
- General
- ASCII Code
- File Extension
- .txt
- File Extension
- Tub
- First line : Column and Label
-
- Standard Header Label : Cruise, Station Type, mon/day/yr, hh:mm, Lon.(゜E), Lat.(゜N), Bot. Depth[m]
- There is a Quality Flag (QF) in each column of data variables.
- Affixed measuring instrument of FETI(PDF) to the "InstType"
- To the final line from the second line : data line
-
- Each line is comprised of the metadata and one data observation layer.
- Cruise sorts out the data by every vessels and observation periods with the extracted data to affix the navigation number.
- As to the “Type” of station, the station less than 250 layers with one letter is "B" and the station
- Insert "0" in case there is no Bot. Depth data.
- Quality Flag and Column
-
- Quality flag is one digit integer : 0= good, 1= unknown, 4= questionable, 8= bad
- Reflected
Station Information Error Flag of FETI (PDF) in the "InstType" quality flag (QF) of ODV spreadsheet
FETI 0 2 3 4 5 6 7 8 9 ODV 0 0 0 0 4 4 8 8 8 - Reflected
ata Accuracy Code (PDF) of FETI in the Quality Flag (QF) following the each data of ODV spreadsheet
FETI 0 1 2 4 5 7 8 9 ODV 0 1 4 8 4 8
Caution Points and Problems
- •In JODC, we store information such as the observation organizations and observation vessels along with the observed data but these information will be missing when converting them to ODV spreadsheet. If you would like to use those data, we recommend you to use FETI format.
•In the FETI format, as for the unit for each variable, the unit used for the submitted data from the observations agencies is used as a general rule but in the ODV spreadsheet, we have unified the unit so that data can be used as they are. In addition, the density of pressure depth is converted into "m" for uniformity simply from "44 Unesco Technical Papers in Marine Science (1983)".
•In the FETI format, because navigation and station numbers control were not completely made, these were created from the data which extracted navigation number and station number to be easy to use it in ODV. We sort out data for every vessel and observation date and number the navigation and if the observation day is vacant for 6 days or more, they are treated as a separate navigation. In addition, the station number is not a station of an original data but is given on the programme. Therefore, there are cases where the data which should be fundamentally treated as one cruise are divided into plural cruises and vice versa are happened.