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  2. BUFR - Wikipedia

    en.wikipedia.org/wiki/BUFR

    The addition of new element descriptors in Table B does not require changes to the BUFR software specification. The Table B definition of an element descriptor includes its number, short text definition, decoding parameters (bit width, scale factor, and bias), and type (numerical, character string, code table, etc.).

  3. METAR - Wikipedia

    en.wikipedia.org/wiki/METAR

    METAR indicates that the following is a standard hourly observation. KTTN is the ICAO identifier for the Trenton-Mercer Airport . 051853Z indicates the day of the month is the 5th and the time of day is 1853 Zulu/ UTC , or 1:53PM Eastern Standard Time .

  4. Move-to-front transform - Wikipedia

    en.wikipedia.org/wiki/Move-to-front_transform

    Details of implementation are important for performance, particularly for decoding. For encoding, no clear advantage is gained by using a linked list , so using an array to store the list is acceptable, with worst-case performance O ( n k ), where n is the length of the data to be encoded and k is the number of values (generally a constant for ...

  5. SYNOP - Wikipedia

    en.wikipedia.org/wiki/SYNOP

    Although this coded data is still available from three American universities it has now been replaced by a universal digital coding system so data can be shared in the same format whatever the source of the observations. This enables Synop, Metar, upperair and satellite data to be processed by a common computer system.

  6. IWXXM - Wikipedia

    en.wikipedia.org/wiki/IWXXM

    ICAO Meteorological Information Exchange Model (IWXXM) is a format for reporting weather information in XML/GML.IWXXM includes XML/GML-based representations for products standardized in International Civil Aviation Organization (ICAO) Annex III, such as METAR/SPECI, TAF, SIGMET, AIRMET, Tropical Cyclone Advisory (TCA), Volcanic Ash Advisory (VAA), [1] Space Weather Advisory and World Area ...

  7. Run-length encoding - Wikipedia

    en.wikipedia.org/wiki/Run-length_encoding

    The decoding process involves reconstructing the original data from the encoded format by repeating characters according to their counts. The steps are as follows: Traverse the encoded data. For each count-character pair, repeat the character count times. Append these characters to the result string.

  8. Array programming - Wikipedia

    en.wikipedia.org/wiki/Array_programming

    In array languages, operations are generalized to apply to both scalars and arrays. Thus, a+b expresses the sum of two scalars if a and b are scalars, or the sum of two arrays if they are arrays. An array language simplifies programming but possibly at a cost known as the abstraction penalty.

  9. Standard array - Wikipedia

    en.wikipedia.org/wiki/Standard_array

    Decoding via a standard array is a form of nearest neighbour decoding. In practice, decoding via a standard array requires large amounts of storage - a code with 32 codewords requires a standard array with entries. Other forms of decoding, such as syndrome decoding, are more efficient.