CF Attributes ontology
type: Ontology
description: NetCDF Climate and Forecast (CF) Metadata Conventions as Attributes More information: http://www.cgd.ucar.edu/cms/eaton/cf-metadata/CF-1.0.html#att_app
subject: cf, standard, name , attributes
contributor: M. Benno Blumenthal
imports: netcdf-3.owl
source: Web documentation Version 1.0, 28 October 2003, accessed 2004-12-14
imports: datatypesasclasses.owl
creator: Luis Bermudez MMI
imports: http://purl.org/dc/elements/1.1/
date: 2005-12-15T11:00:00
contributor: Luis Bermudez

valid_min
type: DatatypeProperty
range: numeric
id: valid_min
domain: Variable
Links: NUG(8.1)
description: Smallest valid value of a variable.

add_offset
type: DatatypeProperty
range: numeric
domain: Non-Coordinate Variable
Links: NUG(8.1) , 8.1
id: add_offset
description: If present for a variable, this number is to be added to the data after it is read by an application. If both scale_factor and add_offset attributes are present, the data are first scaled before the offset is added.

leap_month
type: DatatypeProperty
id: leap_month
description: Specifies which month is lengthened by a day in leap years for a user defined calendar.
domain: Coordinate Variable
range: numeric
Links: 4.4.1

axis
type: DatatypeProperty
domain: Coordinate Variable
description: Identifies latitude, longitude, vertical, or time axes.
range: DataRange
  one of: X
  one of: Y
  one of: Z
  one of: T
id: axis
Links: 4

units
type: DatatypeProperty
description: Units of a variable's content.
id: units
Links: NUG(8.1), 3.1
range: string
domain: Variable

cell_methods
type: DatatypeProperty
id: cell_methods
domain: Non-Coordinate Variable
description: Records the method used to derive data that represents cell values.
range: string
Links: 7.3, 7.4

_FillValue
type: DatatypeProperty
range: numeric
domain: Non-Coordinate Variable
Links: NUG(8.1)
id: _FillValue
description: A value used to represent missing or undefined data.

coordinates
type: DatatypeProperty
Links: 5, 6.1, 6.2
description: Identifies auxiliary coordinate variables, label variables, and alternate coordinate variables.
id: coordinates
domain: Non-Coordinate Variable
range: string

title
type: DatatypeProperty
domain: Dataset
range: string
description: Short description of the file contents.
Links: NUG(8.1)
id: title

id
type: DatatypeProperty
type: AnnotationProperty
domain: Attribute

ancillary_variables
type: DatatypeProperty
range: string
domain: Non-Coordinate Variable
description: Identifies a variable that contains closely associated data, e.g., the measurement uncertainties of instrument data.
Links: 3.4
id: ancillary_variables

positive
type: DatatypeProperty
range: DataRange
  one of: up
  one of: down
domain: Coordinate Variable
Links: COARDS
description: Direction of increasing vertical coordinate value.
id: positive

month_lengths
type: DatatypeProperty
range: numeric
id: month_lengths
description: Specifies the length of each month in a non-leap year for a user defined calendar.
domain: Coordinate Variable
Links: 4.4.1

climatology
type: DatatypeProperty
domain: Coordinate Variable
Links: 7.4
id: climatology
range: string
description: Identifies a climatology variable.

valid_range
type: DatatypeProperty
Links: NUG(8.1)
id: valid_range
domain: Variable
range: numeric
description: Smallest and largest valid values of a variable.

Conventions
type: DatatypeProperty
Links: NUG(8.1)
description: Name of the conventions followed by the dataset.
range: string
id: Conventions
domain: Dataset

history
type: DatatypeProperty
description: List of the applications that have modified the original data.
id: history
Links: NUG(8.1)
domain: Dataset
range: string

grid_mapping
type: DatatypeProperty
domain: Non-Coordinate Variable
id: grid_mapping
description: Identifies a variable that defines a grid mapping.
range: string
Links: 5.6

institution
type: DatatypeProperty
description: Where the original data was produced.
id: institution
domain: Class
  union of: Dataset
  union of: Non-Coordinate Variable
range: string
Links: 2.6.2

missing_value
type: DatatypeProperty
id: missing_value
description: A value used to represent missing or undefined data (deprecated by the NUG).
domain: Non-Coordinate Variable
Links: 2.5.1
range: numeric

standard_name
type: DatatypeProperty
Links: 3.3
id: standard_name
range: string
description: A standard name that references a description of a variable's content in the standard name table.
domain: Variable

references
type: DatatypeProperty
range: string
id: references
description: References that describe the data or methods used to produce it.
domain: Class
  union of: Dataset
  union of: Non-Coordinate Variable
Links: 2.6.2

calendar
type: DatatypeProperty
Links: 4.4.1
id: calendar
domain: Variable
comment: the documentation says the domain should be coordinate_variable -- don't think that is right
description: Calendar used for encoding time axes.
range: DataRange
  one of: gregorian
  one of: standard
  one of: proleptic_gregorian
  one of: noleap
  one of: 365_day
  one of: all_leap
  one of: 366_day
  one of: julian
  one of: none

cell_measures
type: DatatypeProperty
Links: 7.2
id: cell_measures
description: Identifies variables that contain cell areas or volumes.
range: string
domain: Non-Coordinate Variable

Links
type: DatatypeProperty
type: AnnotationProperty
domain: Attribute

bounds
type: DatatypeProperty
description: Identifies a boundary variable.
range: string
id: bounds
Links: 7.1
domain: Coordinate Variable

compress
type: DatatypeProperty
domain: Coordinate Variable
description: Records dimensions which have been compressed by gathering.
id: compress
Links: 8.2, 5.3
range: string

comment
type: DatatypeProperty
id: comment
Links: 2.6.2
domain: Dataset
domain: Non-Coordinate Variable
range: string
description: Miscellaneous information about the data or methods used to produce it.

source
type: DatatypeProperty
range: string
domain: Class
  union of: Dataset
  union of: Non-Coordinate Variable
id: source
description: Method of production of the original data.
Links: 2.6.2

leap_year
type: DatatypeProperty
id: leap_year
description: Provides an example of a leap year for a user defined calendar. It is assumed that all years that differ from this year by a multiple of four are also leap years.
domain: Coordinate Variable
range: numeric
Links: 4.4.1

standard_error_multiplier
type: DatatypeProperty
Links: App C
id: standard_error_multiplier
domain: Non-Coordinate Variable
range: numeric
description: If a data variable with a standard_name modifier of standard_error has this attribute, it indicates that the values are the stated multiple of one standard error.

formula_terms
type: DatatypeProperty
Links: 4.3.2
description: Identifies variables that correspond to the terms in a formula.
range: string
id: formula_terms
domain: Coordinate Variable

flag_meanings
type: DatatypeProperty
domain: Non-Coordinate Variable
description: Use in conjunction with flag_values to provide descriptive words or phrases for each flag value. If multi-word phrases are used to describe the flag values, then the words within a phrase should be connected with underscores.
range: string
id: flag_meanings
Links: 3.5

valid_max
type: DatatypeProperty
id: valid_max
domain: Variable
description: Largest valid value of a variable.
Links: NUG(8.1)
range: numeric

flag_values
type: DatatypeProperty
Links: 3.5
description: Provides a list of the flag values. Use in conjunction with flag_meanings.
domain: Non-Coordinate Variable
range: string
id: flag_values

scale_factor
type: DatatypeProperty
domain: Non-Coordinate Variable
range: numeric
Links: NUG(8.1) , 8.1
id: scale_factor
description: If present for a variable, the data are to be multiplied by this factor after the data are read by an application See also the add_offset attribute.

long_name
type: DatatypeProperty
range: string
description: A descriptive name that indicates a variable's content. This name is not standardized.
id: long_name
domain: Variable
Links: NUG(8.1), 3.2