Mars Digital Image Map/Mars Digital Image Map - Disc 1.iso/gazetter/gazetter.lbl

Text File | 1991-11-04 | 21KB | 424 lines

CCSD3ZF0000100000001NJPL3IF0PDS200000001 = SFDU_LABEL
RECORD_TYPE                    = FIXED_LENGTH
RECORD_BYTES                   = 480
FILE_RECORDS                   = 1181
TARGET_NAME                    = MARS
^TABLE                         = "GAZETTER.TAB"

OBJECT                           = TABLE
  NAME                           = "PLANETARY NOMENCLATURE GAZETTEER"
  INTERCHANGE_FORMAT             = ASCII
  ROWS                           = 1181
  COLUMNS                        = 20
  ROW_BYTES                      = 480
  DESCRIPTION                    = "The gazetteer (file:
      GAZETTER.TAB) is a table of geographical features for a planet.
      It contains information about a named feature such as location,
      size, origin of feature name, etc. The Gazetteer Table contains
      one row for each feature named on Mars.  The table is formatted
      so that it may be read directly into many data management
      systems on various host computers. All fields (columns) are
      separated by commas, and character fields are preceded by
      double quotation marks. Each record consist of 480 bytes, with
      a carriage return/line feed sequence in bytes 479 and 480. This
      allows the table to be treated as a fixed length record file on
      hosts that support this file type and as a normal text file on
      other hosts."

  OBJECT                           = COLUMN
    NAME                           = TARGET_NAME
    DATA_TYPE                      = CHARACTER
    START_BYTE                     = 2
    BYTES                          = 20
    FORMAT                         = "A20"
    UNIT                           = "N/A"
    DESCRIPTION                    = "The planet or satellite on
        which the feature is located."
  END_OBJECT                       = COLUMN

  OBJECT                           = COLUMN
    NAME                           = SEARCH_FEATURE_NAME
    DATA_TYPE                      = CHARACTER
    START_BYTE                     = 25
    BYTES                          = 50
    FORMAT                         = "A50"
    UNIT                           = "N/A"
    DESCRIPTION                    = "The geographical feature name
        with all diacritical marks stripped off.  This name is stored
        in upper case only so that it can be used for sorting and
        search purposes. This field should not be used to designate
        the name of the feature because it does not contain the
        diacritical marks. Feature names not containing diacritical
        marks can often take on a completely different meaning and in
        some cases the meaning can be deeply offensive."
  END_OBJECT                       = COLUMN

  OBJECT                           = COLUMN
    NAME                           = DIACRITIC_FEATURE_NAME
    DATA_TYPE                      = CHARACTER
    START_BYTE                     = 78
    BYTES                          = 100
    FORMAT                         = "A100"
    UNIT                           = "N/A"
    DESCRIPTION                    = "The geographical feature name
        containing standard diacritical information. A detailed
        description of the diacritical mark formats are described in
        the gazetteer documentation.

        DIACRITICALS USED IN THE TABLE

        The word diacritic comes from a Greek word meaning to
        separate. It refers to the accent marks employed to separate,
        or distinguish, one form of pronunciation of a vowel or
        consonant from another.

        This note is included to familiarize the user with the codes
        used to represent diacriticals found in the table, and the
        values usually associated with them. In the table, the code
        for a diacritical is preceded by a backslash and is followed,
        without a space, by the letter it is modifying.

        This note is organized as follows: the code is listed first,
        followed by the name of the accent mark, if applicable, a
        brief description of the appearance of the diacritical and a
        short narrative on its usage.

        acute accent; a straight diagonal line extending from upper
        right to lower left. The acute accent is used in most
        languages to lengthen a vowel; in some, such as Oscan, to
        denote an open vowel.  The acute is also often used to
        indicate the stressed syllable; in some transcriptions it
        indicates a palatalized consonant.

        diaeresis or umlaut; two dots surmounting the letter. In
        Romance languages and English, the diaeresis is used to
        indicate that consecutive vowels do not form a dipthong (see
        below); in modern German and Scandinavian languages, it
        denotes palatalization of vowels.

        circumflex; a chevron or inverted 'v' shape, with the apex at
        the top. Used most often in modern languages to indicate
        lengthening of a vowel.

        tilde; a curving or waving line above the letter. The tilde
        is a form of circumflex. The tilde is used most often in
        Spanish to form a palatalized n as in the word 'ano',
        pronounced 'anyo'.  It is also used occasionally to indicate
        nasalized vowels.

        macron; a straight line above the letter. The macron is used
        almost universally to lengthen a vowel.

        breve; a concave semicircle or 'u' shape surmounting the
        letter.  Originally used in Greek, the breve indicates a
        short vowel.

        a small circle or 'o' above the letter. Frequently used in
        Scandinavian languages to indicate a broad 'o'.

        e dipthong or ligature; transcribed as two letters in contact
        with each other. The dipthong is a combination of vowels that
        are pronounced together.

        cedilla; a curved line surmounted by a vertical line, placed
        at the bottom of the letter. The cedilla is used in Spanish
        and French to denote a dental, or soft, 'c'. In the new
        Turkish transcription, 'c' cedilla has the value of English
        'ch'.  In Semitic languages, the cedilla under a consonant
        indicates that it is emphatic.

        check or inverted circumflex; a 'v' shape above the letter.
        This accent is used widely in Slavic languages to indicate a
        palatal articulation, like the consonant sounds in the
        English words chapter and shoe and the 'zh' sound in
        pleasure.

        a single dot above the letter. This diacritical denotes
        various things; in Lithuanian, it indicates a close long
        vowel. In Sanskrit, when used with 'n', it is a velar sound,
        as in the English 'sink'; in Irish orthography, it indicates
        a fricative consonant (see below).

        accent grave; a diagonal line (above the letter) extending
        from upper left to lower right. The grave accent is used in
        French, Spanish and Italian to denote open vowels.

        fricative; a horizontal line through a consonant. A fricative
        consonant is characterized by a frictional rustling of the
        breath as it is emitted."
  END_OBJECT                       = COLUMN

  OBJECT                           = COLUMN
    NAME                           = MINIMUM_LATITUDE
    DATA_TYPE                      = REAL
    START_BYTE                     = 180
    BYTES                          = 7
    FORMAT                         = "F7.2"
    UNIT                           = DEGREE
    DESCRIPTION                    = "The minimum_latitude element
        specifies the southernmost latitude of a spatial area, such
        as a map, mosaic, bin, feature, or region."
  END_OBJECT                       = COLUMN

  OBJECT                           = COLUMN
    NAME                           = MAXIMUM_LATITUDE
    DATA_TYPE                      = REAL
    START_BYTE                     = 188
    BYTES                          = 7
    FORMAT                         = "F7.2"
    UNIT                           = DEGREE
    DESCRIPTION                    = "The maximum_latitude element
        specifies the northernmost latitude of a spatial area, such
        as a map, mosaic, bin, feature, or region."
  END_OBJECT                       = COLUMN

  OBJECT                           = COLUMN
    NAME                           = CENTER_LATITUDE
    DATA_TYPE                      = REAL
    START_BYTE                     = 196
    BYTES                          = 7
    FORMAT                         = "F7.2"
    UNIT                           = DEGREE
    DESCRIPTION                    = "The center latitude of the
        feature."
  END_OBJECT                       = COLUMN

  OBJECT                           = COLUMN
    NAME                           = MINIMUM_LONGITUDE
    DATA_TYPE                      = REAL
    START_BYTE                     = 204
    BYTES                          = 7
    FORMAT                         = "F7.2"
    UNIT                           = DEGREE
    DESCRIPTION                    = "The minimum_longitude element
        specifies the easternmost latitude of a spatial area, such as
        a map, mosaic, bin, feature, or region.  "
  END_OBJECT                       = COLUMN

  OBJECT                           = COLUMN
    NAME                           = MAXIMUM_LONGITUDE
    DATA_TYPE                      = REAL
    START_BYTE                     = 212
    BYTES                          = 7
    FORMAT                         = "F7.2"
    UNIT                           = DEGREE
    DESCRIPTION                    = "The maximum_longitude element
        specifies the westernmost longitude of a spatial area, such
        as a map, mosaic, bin, feature, or region. "
  END_OBJECT                       = COLUMN

  OBJECT                           = COLUMN
    NAME                           = CENTER_LONGITUDE
    DATA_TYPE                      = REAL
    START_BYTE                     = 220
    BYTES                          = 7
    FORMAT                         = "F7.2"
    UNIT                           = DEGREE
    DESCRIPTION                    = "The center longitude of the
        feature."
  END_OBJECT                       = COLUMN

  OBJECT                           = COLUMN
    NAME                           = LABEL_POSITION_ID
    DATA_TYPE                      = CHARACTER
    START_BYTE                     = 229
    BYTES                          = 2
    FORMAT                         = "A2"
    UNIT                           = "N/A"
    DESCRIPTION                    = "The suggested plotting position
        of the feature name (UL=Upper left, UC=Upper center, UR=Upper
        right, CL=Center left, CR=Center right, LL=Lower left,
        LC=Lower center, LR=Lower right). This field is used to
        instruct the plotter where to place the typographical label
        with respect to the center of the feature.  This code is used
        to avoid crowding of names in areas where there is a high
        density of named features."
  END_OBJECT                       = COLUMN

  OBJECT                           = COLUMN
    NAME                           = FEATURE_LENGTH
    DATA_TYPE                      = REAL
    START_BYTE                     = 233
    BYTES                          = 8
    FORMAT                         = "F8.2"
    UNIT                           = KILOMETER
    DESCRIPTION                    = "The longer or longest dimension
        of an object. For the Gazetteer usage, this field refers to
        the length of the named feature."
  END_OBJECT                       = COLUMN

  OBJECT                           = COLUMN
    NAME                           = PRIMARY_PARENTAGE_ID
    DATA_TYPE                      = CHARACTER
    START_BYTE                     = 243
    BYTES                          = 2
    FORMAT                         = "A2"
    UNIT                           = "N/A"
    DESCRIPTION                    = "This field contains the primary
        origin of the feature name (i.e. where the name originated).
        It contains a code for the continent or country origin of the
        name. Please see Appendix 5 of the gazetteer documentation
        (GAZETTER.TXT) for a definition of the codes used to define
        the continent or country."
  END_OBJECT                       = COLUMN

  OBJECT                           = COLUMN
    NAME                           = SECONDARY_PARENTAGE_ID
    DATA_TYPE                      = CHARACTER
    START_BYTE                     = 248
    BYTES                          = 2
    FORMAT                         = "A2"
    UNIT                           = "N/A"
    DESCRIPTION                    = "This field contains the
        secondary origin of the feature name. It contains a code for
        a country, state, territory, or ethnic group. Please see
        Appendix 5 of the gazetteer documentation (GAZETTER.TXT) for
        a defintion of the codes in this field."

  END_OBJECT                       = COLUMN

  OBJECT                           = COLUMN
    NAME                           = MAP_SERIAL_ID
    DATA_TYPE                      = CHARACTER
    START_BYTE                     = 253
    BYTES                          = 6
    FORMAT                         = "A6"
    UNIT                           = "N/A"
    DESCRIPTION                    = "The identification of the map
        that contains the named feature. This field represents the
        map serial number of the map publication used for ordering
        maps from the U.S. Geological Survey. The map identified in
        this field best portrays the named feature."
  END_OBJECT                       = COLUMN

  OBJECT                           = COLUMN
    NAME                           = FEATURE_STATUS_TYPE
    DATA_TYPE                      = CHARACTER
    START_BYTE                     = 262
    BYTES                          = 12
    FORMAT                         = "A12"
    UNIT                           = "N/A"
    DESCRIPTION                    = "The IAU approval status of the
        named feature. Permitted values are 'PROPOSED',
        'PROVISIONAL', 'IAU-APPROVED', and 'DROPPED'. Dropped names
        have been disallowed by the IAU. However, these features have
        been included in the gazetteer for historical purposes. Some
        named features that are disallowed by the IAU may commonly be
        used on some maps."
  END_OBJECT                       = COLUMN

  OBJECT                           = COLUMN
    NAME                           = APPROVAL_DATE
    DATA_TYPE                      = INTEGER
    START_BYTE                     = 276
    BYTES                          = 4
    FORMAT                         = "I4"
    UNIT                           = "N/A"
    DESCRIPTION                    = "Date at which an object has
        been approved by the officially sanctioned organization. This
        field contains the year the IAU approved the feature name."
  END_OBJECT                       = COLUMN

  OBJECT                           = COLUMN
    NAME                           = FEATURE_TYPE
    DATA_TYPE                      = CHARACTER
    START_BYTE                     = 282
    BYTES                          = 20
    FORMAT                         = "A20"
    UNIT                           = "N/A"
    DESCRIPTION                    = "The feature type identifies the
        type of a particular feature, according to IAU standards.
        Examples are 'CRATER', 'TESSERA', 'TERRA', etc. See Appendix
        7 of the gazetteer documentation (GAZETTER.TXT).

        DESCRIPTOR TERMS (FEATURE TYPES)

        FEATURE                 DESCRIPTION
        -------                 -----------
        ALBEDO FEATURE          Albedo feature
        CATENA                  Chain of craters
        CAVUS                   Hollows, irregular depressions
        CHAOS                   Distinctive area of broken terrain
        CHASMA                  Canyon
        COLLES                  Small hill or knob
        CORONA                  Ovoid-shaped feature
        CRATER                  Crater
        DORSUM                  Ridge
        ERUPTIVE CENTER         Eruptive center
        FACULA                  Bright spot
        FLEXUS                  Cuspate linear feature
        FLUCTUS                 Flow terrain
        FOSSA                   Long, narrow, shallow depression
        LABES                   Landslide
        LABYRINTHUS             Intersecting valley complex
        LACUS                   Lake
        LARGE RINGED FEATURE    Large ringed feature
        LINEA                   Elongate marking
        MACULA                  Dark spot
        MARE                    Sea
        MENSA                   Mesa, flat-topped elevation
        MONS                    Mountain
        OCEANUS                 Ocean
        PALUS                   Swamp
        PATERA                  Shallow crater; scalloped, complex
        edge
        PLANITIA                Low plain
        PLANUM                  Plateau or high plain
        PROMONTORIUM            Cape
        REGIO                   Region
        RIMA                    Fissure
        RUPES                   Scarp
        SCOPULUS                Lobate or irregular scarp
        SINUS                   Bay
        SULCUS                  Subparallel furrows and ridges
        TERRA                   Extensive land mass
        TESSERA                 Tile; polygonal ground
        THOLUS                  Small domical mountain or hill
        UNDAE                   Dunes
        VALLIS                  Sinuous valley
        VASTITAS                Widespread lowlands
        VARIABLE FEATURE        Variable feature
        "
  END_OBJECT                       = COLUMN

  OBJECT                           = COLUMN
    NAME                           = REFERENCE_NUMBER
    DATA_TYPE                      = INTEGER
    START_BYTE                     = 304
    BYTES                          = 4
    FORMAT                         = "I4"
    UNIT                           = "N/A"
    DESCRIPTION                    = "Literature reference from which
        the spelling and description of the feature name was derived.
        See Appendix 6 of the gazetteer documentation
        (GAZETTER.TXT)."
  END_OBJECT                       = COLUMN

  OBJECT                           = COLUMN
    NAME                           = MAP_CHART_ID
    DATA_TYPE                      = CHARACTER
    START_BYTE                     = 310
    BYTES                          = 6
    FORMAT                         = "A6"
    UNIT                           = "N/A"
    DESCRIPTION                    = "This field contains the
        abbreviation of the map designator or chart identification
        (example MC-19, MC-18, etc.)."
  END_OBJECT                       = COLUMN

  OBJECT                           = COLUMN
    NAME                           = FEATURE_DESCRIPTION
    DATA_TYPE                      = CHARACTER
    START_BYTE                     = 319
    BYTES                          = 159
    FORMAT                         = "A159"
    UNIT                           = "N/A"
    DESCRIPTION                    = "Short description of the
        feature name."
  END_OBJECT                       = COLUMN

END_OBJECT                       = TABLE

END