General description
The measurements are presented as columns of data points at the units indicated in the header and a last line of default values at each station.
- For vertical profiles the reference parameter must be the pressure (PRES) or depth (DEPH), and it has to be in the first position in the parameter list
- BP = Beginning Position
- SL = string length
- NL= number of records lines
- M= Mandatory
LINE |
FIELD |
DESCRIPTION |
BP |
SL |
TYPE |
|
1 to NL |
parameter 1 |
parameter 1 (PRES) in IS units |
1 |
nlen(1) |
num |
M |
separator |
blank |
bp(2)-1 |
1 |
|
M |
|
parameter 2 |
parameter 2 in IS units |
bp(2) |
nlen(2) |
num |
M |
|
separator |
blank |
bp(np)-1 |
1 |
|
M |
|
parameter NP |
parameter NP in IS units |
bp(np) |
nlen(np) |
num |
M |
|
separator |
blank |
bp(q1)-1 |
1 |
|
M |
|
QC Flag 1 |
Quality Flag parameter 1 |
bp(q1) |
1 |
num |
M |
|
QC Flag NP |
Quality Flag parameter NP |
bp(q1)+np |
1 |
num |
M |
|
NL+1 (Last line of the profile) |
def. val. par.1 |
'-999.9' or string of '9' |
1 |
nlen(1) |
num |
M |
separator |
blank |
bp(2)-1 |
1 |
|
M |
|
def. val. par.2 |
string of '9'as in header |
bp(2) |
nlen(2) |
num |
M |
|
def. val. par.N |
P string of '9'as in header |
bp(NP) |
nlen(NP) |
num |
M |
|
separator |
blank |
bp(q1)-1 |
1 |
|
M |
|
QC Flag 1 |
Def. val.Quality Flag '9' |
bp(q1) |
1 |
num |
M |
|
QC Flag NP |
Def. val.Quality Flag '9' |
bp(q1)+np |
1 |
num |
M |
Detailed explanation
First column
Pressure in decibars (PRES) or depth in metres (DEPH) must be the reference co-ordinate (first column) of the vertical profiles. The reference parameter must be recorded in strictly increasing order.
Columns length
Each parameter p can have any length nlen(p), but this length must be constant in the profile, and the decimal points at a constant position. The separators are blanks of one character (or more), after each parameter value. The quality flags are grouped after the last separator, with no blank between them. Therefore if a total of NP parameters are recorded the beginning positions of parameter p (bp(p)) and its quality fmag (bpq(p)) in the record lines are:
- bp(p)=nlen(1)+ ..+ nlen(p-1) + 1
- bpq(p)= bp(NP) + nlen(NP) + p-1
nlen(p) includes the blanks separator(s) for the parameter p.
For missing data, the default characters are in numbers: 9 or -9 at the same format and length as the expected numbers. The number of decimals must implicitly indicate the accuracy of the measurements and not exceed the resolution.
Last line
The last line of a station is completed with default values.