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AE Hourly Data

Copyright WDC C1 for STP at RAL.


Auroral Electrojet Indices ( AE hourly data )

The only applicable units are nT for the actual data. This data starts in 1957.

  FieldName    Dimension Type Width DecimalPlaces NullValue Units
  ------------ --------- ---- ----- ------------- --------- -----
  Date                 3    S     4             0        -1     -
  Time                 3    S     4             0        -1     -
  AE                   1    I     6             0     99999    nT
  AL                   1    I     6             0     99999    nT
  AO                   1    I     6             0     99999    nT
  AU                   1    I     6             0     99999    nT

Field Definitions

  Field  Data Size         Field Definition
  -----  ----------------  ----------------------------
  Date   Array of 3 items  Year(4 digit), Month and Day
  Time   Array of 3 items  Hour, Minute and Second
  AE     Single items      AE Index value
  AL     Single items      AL Index value
  AO     Single items      AO Index value
  AU     Single items      AU Index value

Field Types

  Code  Data Type                     Storage
  ----  ----------------------------  -------
     C  CHARACTER                     1 byte
     P  DOUBLE PRECISION REAL         8 bytes
     R  REAL                          4 bytes
     I  INTEGER                       4 bytes
     S  SMALL INTEGER                 2 bytes
     B  BYTE (unsigned integer 0-255) 1 byte