NCEPLIBS-w3emc

Introduction

This library contains Fortran 77 decoder/encoder routines for GRIB edition 1.

This library also contains a module mersenne_twister, a random number generator that uses the Mersenne twister (aka MT19937).

GRIB1 Parameters

• idsdef()
• r63w72()

Reading GRIB1 Files

• skgb()
• w3unpk77()
• w3miscan()

Packing and Writing GRIB1 Files

• putgbe()
• putgben()
• putgbens()
• putgbex()
• putgb()
• putgbn()
• w3nogds()*

Product Definition Section

• iw3pds()
• pdsens()
• pdseup()

Grid Description Section

• lengds()
• makgds()

WMO Headers

• makwmo()
• mkfldsep()

Reading Formats

• iw3unp29()
• w3ai01()*

Index Files for GRIB1 Files

The NCEPLIBS-w3emc library supports index files which contain the byte-offsets of a GRIB1 file. Index files can improve performance when reading large GRIB files.

The following subroutines work with index file:

• ixgb()
• getgb1()
• getgb1re()
• getgb1r()
• getgb1s()
• getgbe()
• getgbeh()
• getgbem()
• getgbemh()
• getgbemn()
• getgbemp()
• getgbens()
• getgbep()
• getgbex()
• getgbexm()
• getgb()
• getgbh()
• getgbm()
• getgbmh()
• getgbmp()
• getgbp()
• getgi()
• getgir()

Bit and Byte Manipulation

The following functions manipulate bits and bytes to pack or unpack a GRIB1 message:

• gtbits()
• fparsei(), fparser()
• gbyte(), gbytec(), gbytes(), gbytesc()
• sbyte(), sbytec(), sbytes(), sbytesc()
• getbit()
• iw3mat()
• isrchne()
• mova2i()
• q9ie32()*
• xmovex(), xstore()
• w3ymdh4()*
• w3ai00()*, w3ai01()*, w3ai08()*, w3ai15(), w3ai18()*, w3ai19(), w3ai24(), w3ai38()*, w3ai39(), w3ai40()*, w3ai41()*, w3aq15()*, w3as00()

Date/Time

• w3valdat()
• w3utcdat()
• w3reddat()
• w3pradat()
• w3movdat()
• w3locdat()
• w3fs13(), w3fs15(), w3fs21(), w3fs26()
• w3ctzdat()*
• w3difdat()
• w3doxdat()

Sorting

• orders()

Error Handling

The following subroutines are used for error handling:

• errexit()
• errmsg()

Command Line Arguments

• w3trnarg()

Code Instrumentation

Code instrumentation is supported with instrument() and summary.c. See also:

• w3tagb()
• w3kind()

Dummy Subroutines

Some legacy dummy subroutines are in xdopen.f. See also w3log()*.

Conversions

• w3fa01()*, w3fa03(), w3fa03v()*, w3fa04()*, w3fa06()*, w3fa09(), w3fa11()*, w3fa12()*, w3fa13()*

Coordinates

• w3fb00()*, w3fb01()*, w3fb02()*, w3fb03()*, w3fb04()*, w3fb05(), w3fb06(), w3fb07(), w3fb08(), w3fb09(), w3fb10(), w3fb11(), w3fb12(), w3fc02()*, w3fc05(), w3fc06(), w3fc07(), w3fc08()*

Office-Note 85 Subroutines

• w3fi01(), w3fi02()*, w3fi03()*, w3fi04(), w3fi18()*, w3fi19()*, w3fi20()*, w3fi32()*, w3fi47()*, w3fi48()*, w3fi58(), w3fi59(), w3fi61()*, w3fi62(), w3fi63(), w3fi64()*, w3fi65()*, w3fi66()*, w3fi67()*, w3fi68(), w3fi69(), w3fi70()*, w3fi71(), w3fi72(), w3fi73(), w3fi74(), w3fi75(), w3fi76(), w3fi78()*, w3fi82(), w3fi83(), w3fi85()*, w3fi88()*, w3fi92()*

9-Point Smoother

• w3fm07()*, w3fm08()*

Printing

• w3fp04()*, w3fp05()*, w3fp06()*, w3fp10()*, w3fp11(), w3fp12()*, w3fp13()*

Transformation

• w3ft00()*, w3ft01(), w3ft02()*, w3ft03()*, w3ft05()*, w3ft05v()*, w3ft06()*, w3ft06v()*, w3ft07()*, w3ft08()*, w3ft09()*, w3ft10()*, w3ft11()*, w3ft12()*, w3ft16(), w3ft17(), w3ft201()*, w3ft202()*, w3ft203()*, w3ft204()*, w3ft205()*, w3ft206()*, w3ft207()*, w3ft208()*, w3ft209()*, w3ft210()*, w3ft211()*, w3ft212()*, w3ft213()*, w3ft214()*, w3ft21()*, w3ft26(), w3ft32()*, w3ft33()*, w3ft38()*, w3ft39()*, w3ft40()*, w3ft41()*

**Deprecated subroutines. Build with -DBUILD_DEPRECATED=ON to compile these.*

Documentation for Previous Versions

• NCEPLIBS-w3emc Version 2.11.0
• NCEPLIBS-w3emc Version 2.10.0
• NCEPLIBS-w3emc Version 2.9.3
• NCEPLIBS-w3emc Version 2.9.2