FAAM Flight Data File Names
FAAM data file names follow the
BADC File Name Convention
with a number of additional specific constraints listed below.
The file name structure since June 2007 is as follows:
DataID _ Platform _ Date _ [ Version# ] _ Revision# _ Flight# [ _ Extra ] . extension
or, more precisely:
dataID _ faam _ YYYYMMDD [ _ v# ] _ r# _ fxxx [ _ extra ].ext
where elements in square brackets are optional.
Note that the file name is made of 5 mandatory and 2 optional fields
separated by underscore signs, plus a file extension separated from
the file name body by a dot.
Letters appearing in the various fields must be lower case characters.
The different fields represent the following variables, with the
identifies the data stored in the file. It can be the
name of an instrument, of a group of instruments, of the physical
quantity measured by an instrument.
This field has the value core for files containing
processed data issued from the set of core instruments flown on a
In some instances, non-core data can also be merged into single files,
in which case dataID will have a value referring to all merged
Note that the dataID parameter is called instrument in
the BADC File Name Convention.
Only values of dataID belonging to the
list of standard instrument names
will be accepted by the file uploader.
If you are a data provider and can't find an adequate value in the list,
please contact the
The second field (the platform name) must be faam
for data collected aboard the FAAM aircraft.
The third field is the date, in the format
YYYYMMDD (Year YYYY, Month MM, Day DD).
If required, this can be completed by an indication of time, using 2-digit
numbers hh (hour), mm (minutes), ss
(seconds). The additional [hhmmss] is currently used for dropsonde data.
r# (lower case v followed by an 3-digit integer
greater than or equal to 0) is version number of the processing software
v001 stands for the initial version. This was first introduced in June
2007 when the processing software was transferred to a LINUX system. Not all file
types include this number.
r# (lower case r followed by an integer
greater than or equal to 0) is the revision of the flight constants
(eg improved calibrations constants).
r0 stands for the initial version, r1
for the first revision, etc.
fxxx is the flight number.
It is made of a lower case letter followed by a 3-digit integer.
For example, all FAAM flights from March to October 2004 are numbered
b001 to b056.
The extra field is optional and is provided to account for
any useful piece of information not covered by the previous 5 fields.
Raw data may be distinguished from processed data in this way, although
the file name extension (see below) will usually provide a sufficient
indication on whether the data is raw or processed.
extra may include underscore signs (in other words, extra
could be more than one subfield).
ext is an indication of the file format.
A list of accepted
name extensions is provided.
Please contact the BADC if the list must
be updated to account for a new format (in particular, for raw data
produced in an instrument-specific format).
*Users are advised that more than one revision of the data may be present in
any flight directory due to reprocessing using improved software or calibration
coefficients. In the absence of specialist advice, users are always
advised to use the latest revision of the highest version of data in the archive.