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Argo data management User’s manual

2.2 Core-Argo profile format version 3.0

An Argo single-cycle profile file contains a set of profiles from a single cycle. The minimum number

is one profile per cycle. There is no defined maximum number of profiles per cycle.

A profile contains all parameters that are measured with the same vertical sampling scheme and at the

same location and time. For example, all Argo floats collect at least one profile per cycle that contains

the CTD measurements.

A core-Argo profile contains the CTD sensor parameters (pressure, temperature, salinity, conductivity)

that are measured with the same vertical sampling scheme and at the same location and time.

Additional parameters from other sensors are stored in a B-Argo profile file. The B-profile file is very

similar to core-Argo profile file; its additional features are listed in §2.6

Some speciality floats collect additional profiles per cycle. These speciality profiles contain

parameters measured at pressure levels that are different from the CTD levels, and can be at locations

and time that are different from the primary profile. When multiple profiles exist in a single cycle,

users are urged to check the information associated with each profile in order to determine their spatial

and temporal relations. Some examples of speciality profiles with different vertical sampling schemes

are:

 Bouncing profiles: a series of shallow profiles performed during one cycle.

 High resolution near-surface observations: higher resolution vertical sampling near the surface

from unpumped CTD.

 Oxygen profiles: dissolved oxygen measured on vertical levels that are not the CTD levels.

 Optical profiles: a series of optical profiles performed during one cycle.

For single-cycle profile file naming conventions, see §4.1.

2.2.1 Globalattributes

The global attributes section is used for data discovery. The following global attributes should appear

in the global section. The NetCDF Climate and Forecast (CF) Metadata Conventions (version 1.6, 5

December, 2011) are available from:

 http://cf-pcmdi.llnl.gov/documents/cf-conventions/1.6/cf-conventions.pdf

// global attributes:

:title = "Argo float vertical profile";

:institution = "CSIRO";

:source = "Argo float";

:history = "2011-04-22T06:00:00Z creation";

:references = "http://www.argodatamgt.org/Documentation";

:comment = "free text";

:user_manual_version = "3.04";

:Conventions = "Argo-3.0 CF-1.6";

:featureType = "trajectoryProfile";

Global attribute

name

Definition

title A succinct description of what is in the dataset.

institution Specifies where the original data was produced.

source The method of production of the original data. If it was model-generated, source should name

the model and its version, as specifically as could be useful. If it is observational, source should

characterize it (e.g., "surface observation" or "radiosonde").

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Inhaltsverzeichnis

Seite 1 - Definition

18 Argo data management User’s manual 2.2 Core-Argo profile format version 3.0 An Argo single-cycle profile file contains a set of profiles from

Seite 2

77 Argo data management User’s manual Parameter attributes  The Fill_value attribute is set to 99999.f  The C_Format, Fortran_Format and Form

Seite 3

28 Argo data management User’s manual 2.3 Core-Argo trajectory format version 3.0 Core-Argo trajectory files contain all received locations of Ar

Seite 4

63 Argo data management User’s manual 2.6 B-Argo profile and trajectory format additional features A B-Argo profile/trajectory file contains all

Seite 5

64 Argo data management User’s manual 2.6.2 ParametervaluesmaybefloatordoubleSome sensors provide values that cannot be stored as float,

Seite 6 - Intermediate parameters

72 Argo data management User’s manual 3.3 Reference table 3: parameter code table The following table describes the parameter codes used for Ar

Seite 7

73 Argo data management User’s manual Intermediate parameters These parameters are reported in data files. They are ignored in the files merged b

Seite 8

74 Argo data management User’s manual MOLAR_DOXY Uncompensated (pressure and salinity) oxygen concentration reported by the oxygen sensor mole_c

Seite 9

75 Argo data management User’s manual FLUORESCENCE_CDOM Raw fluorescence from colored dissolved organic mater sensor - counts - - SIDE_SCATTE

Seite 10

76 Argo data management User’s manual TEMP_CAL_NITRATE Temperature calibration from nitrate sensor - degree_Celsius - - ABSORBANCE _COR_NITRA

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