pdstemplates.f

计算线性趋势 回归系数 主要用于气象站点值的线性趋势计算

      module pdstemplates
!$$$  SUBPROGRAM DOCUMENTATION BLOCK
!                .      .    .                                       .
! MODULE:    pdstemplates 
!   PRGMMR: Gilbert         ORG: W/NP11    DATE: 2000-05-11
!
! ABSTRACT: This Fortran Module contains info on all the available 
!   GRIB2 Product Definition Templates used in Section 4 (PDS).
!   Each Template has three parts: The number of entries in the template
!   (mapgridlen);  A map of the template (mapgrid), which contains the
!   number of octets in which to pack each of the template values; and
!   a logical value (needext) that indicates whether the Template needs 
!   to be extended.  In some cases the number of entries in a template 
!   can vary depending upon values specified in the "static" part of 
!   the template.  ( See Template 4.3 as an example )
!
!   This module also contains two subroutines.  Subroutine getpdstemplate
!   returns the octet map for a specified Template number, and
!   subroutine extpdstemplate will calculate the extended octet map
!   of an appropriate template given values for the "static" part of the 
!   template.  See docblocks below for the arguments and usage of these 
!   routines.
!
!   NOTE:  Array mapgrid contains the number of octets in which the 
!   corresponding template values will be stored.  A negative value in
!   mapgrid is used to indicate that the corresponding template entry can
!   contain negative values.  This information is used later when packing
!   (or unpacking) the template data values.  Negative data values in GRIB
!   are stored with the left most bit set to one, and a negative number
!   of octets value in mapgrid() indicates that this possibility should
!   be considered.  The number of octets used to store the data value
!   in this case would be the absolute value of the negative value in 
!   mapgrid().
!  
!
! PROGRAM HISTORY LOG:
! 2000-05-11  Gilbert
! 2001-12-04  Gilbert  -  Added Templates 4.12, 4.12, 4.14,
!                         4.1000, 4.1001, 4.1002, 4.1100 and 4.1101
!
! USAGE:    use pdstemplates
!
! ATTRIBUTES:
!   LANGUAGE: Fortran 90
!   MACHINE:  IBM SP
!
!$$$

      integer,parameter :: MAXLEN=200,MAXTEMP=23

      type pdstemplate
          integer :: template_num
          integer :: mappdslen
          integer,dimension(MAXLEN) :: mappds
          logical :: needext
      end type pdstemplate

      type(pdstemplate),dimension(MAXTEMP) :: templates

      data templates(1)%template_num /0/     !  Fcst at Level/Layer
      data templates(1)%mappdslen /15/
      data templates(1)%needext /.false./
      data (templates(1)%mappds(j),j=1,15) 
     &                             /1,1,1,1,1,2,1,1,4,1,-1,-4,1,-1,-4/

      data templates(2)%template_num /1/     !  Ens fcst at level/layer
      data templates(2)%mappdslen /18/
      data templates(2)%needext /.false./
      data (templates(2)%mappds(j),j=1,18)
     &                        /1,1,1,1,1,2,1,1,4,1,-1,-4,1,-1,-4,1,1,1/

      data templates(3)%template_num /2/     !  Derived Ens fcst at level/layer
      data templates(3)%mappdslen /17/
      data templates(3)%needext /.false./
      data (templates(3)%mappds(j),j=1,17)
     &                      /1,1,1,1,1,2,1,1,4,1,-1,-4,1,-1,-4,1,1/

      data templates(4)%template_num /3/     !  Ens cluster fcst rect. area
      data templates(4)%mappdslen /31/
      data templates(4)%needext /.true./
      data (templates(4)%mappds(j),j=1,31)
     &       /1,1,1,1,1,2,1,1,4,1,-1,-4,1,-1,-4,1,1,1,1,1,1,1,-4,-4,4,4,
     &        1,-1,4,-1,4/

      data templates(5)%template_num /4/     !  Ens cluster fcst circ. area
      data templates(5)%mappdslen /30/
      data templates(5)%needext /.true./
      data (templates(5)%mappds(j),j=1,30)
     &       /1,1,1,1,1,2,1,1,4,1,-1,-4,1,-1,-4,1,1,1,1,1,1,1,-4,4,4,
     &        1,-1,4,-1,4/

      data templates(6)%template_num /5/     !  Prob fcst at level/layer
      data templates(6)%mappdslen /22/
      data templates(6)%needext /.false./
      data (templates(6)%mappds(j),j=1,22)
     &               /1,1,1,1,1,2,1,1,4,1,-1,-4,1,-1,-4,1,1,1,1,4,1,4/

      data templates(7)%template_num /6/     !  Percentile fcst at level/layer
      data templates(7)%mappdslen /16/
      data templates(7)%needext /.false./
      data (templates(7)%mappds(j),j=1,16)
     &                     /1,1,1,1,1,2,1,1,4,1,-1,-4,1,-1,-4,1/

      data templates(8)%template_num /7/     !  Error at level/layer
      data templates(8)%mappdslen /15/
      data templates(8)%needext /.false./
      data (templates(8)%mappds(j),j=1,15)
     &                     /1,1,1,1,1,2,1,1,4,1,-1,-4,1,-1,-4/

      data templates(9)%template_num /8/     !  Ave or Accum at level/layer
      data templates(9)%mappdslen /29/
      data templates(9)%needext /.true./
      data (templates(9)%mappds(j),j=1,29)
     &  /1,1,1,1,1,2,1,1,4,1,-1,-4,1,-1,-4,2,1,1,1,1,1,1,4,1,1,1,4,1,4/

      data templates(10)%template_num /9/     !  Prob over time interval
      data templates(10)%mappdslen /36/
      data templates(10)%needext /.true./
      data (templates(10)%mappds(j),j=1,36)
     &  /1,1,1,1,1,2,1,1,4,1,-1,-4,1,-1,-4,1,1,1,-1,4,-1,4,2,1,1,1,1,1,
     &   1,4,1,1,1,4,1,4/

      data templates(11)%template_num /10/     !  Percentile over time interval
      data templates(11)%mappdslen /30/
      data templates(11)%needext /.true./
      data (templates(11)%mappds(j),j=1,30)
     &    /1,1,1,1,1,2,1,1,4,1,-1,-4,1,-1,-4,1,2,1,1,1,1,1,1,4,
     &     1,1,1,4,1,4/

      data templates(12)%template_num /11/     !  Ens member over time interval
      data templates(12)%mappdslen /32/
      data templates(12)%needext /.true./
      data (templates(12)%mappds(j),j=1,32)
     &    /1,1,1,1,1,2,1,1,4,1,-1,-4,1,-1,-4,1,1,1,2,1,1,1,1,1,1,
     &     4,1,1,1,4,1,4/

      data templates(13)%template_num /12/     !  Derived Ens fcst over time int
      data templates(13)%mappdslen /31/
      data templates(13)%needext /.true./
      data (templates(13)%mappds(j),j=1,31)
     &                   /1,1,1,1,1,2,1,1,4,1,-1,-4,1,-1,-4,1,1,
     &                    2,1,1,1,1,1,1,4,1,1,1,4,1,4/

      data templates(14)%template_num /13/     !  Ens cluster fcst rect. area
      data templates(14)%mappdslen /45/
      data templates(14)%needext /.true./
      data (templates(14)%mappds(j),j=1,45)
     &       /1,1,1,1,1,2,1,1,4,1,-1,-4,1,-1,-4,1,1,1,1,1,1,1,-4,-4,4,4,
     &        1,-1,4,-1,4,2,1,1,1,1,1,1,4,1,1,1,4,1,4/

      data templates(15)%template_num /14/     !  Ens cluster fcst circ. area
      data templates(15)%mappdslen /44/
      data templates(15)%needext /.true./
      data (templates(15)%mappds(j),j=1,44)
     &       /1,1,1,1,1,2,1,1,4,1,-1,-4,1,-1,-4,1,1,1,1,1,1,1,-4,4,4,
     &        1,-1,4,-1,4,2,1,1,1,1,1,1,4,1,1,1,4,1,4/

      data templates(16)%template_num /20/     !  Radar Product
      data templates(16)%mappdslen /19/
      data templates(16)%needext /.false./
      data (templates(16)%mappds(j),j=1,19)
     &                     /1,1,1,1,1,-4,4,2,4,2,1,1,1,1,1,2,1,3,2/

      data templates(17)%template_num /30/     !  Satellite Product
      data templates(17)%mappdslen /5/
      data templates(17)%needext /.true./
      data (templates(17)%mappds(j),j=1,5)
     &                            /1,1,1,1,1/

      data templates(18)%template_num /254/     !  CCITTIA5 Character String
      data templates(18)%mappdslen /3/
      data templates(18)%needext /.false./
      data (templates(18)%mappds(j),j=1,3)
     &                     /1,1,4/

      data templates(19)%template_num /1000/     !  Cross section
      data templates(19)%mappdslen /9/
      data templates(19)%needext /.false./
      data (templates(19)%mappds(j),j=1,9)
     &                     /1,1,1,1,1,2,1,1,4/

      data templates(20)%template_num /1001/     !  Cross section over time
      data templates(20)%mappdslen /16/
      data templates(20)%needext /.false./
      data (templates(20)%mappds(j),j=1,16)
     &                     /1,1,1,1,1,2,1,1,4,4,1,1,1,4,1,4/

      data templates(21)%template_num /1002/     !  Cross section processed time
      data templates(21)%mappdslen /15/
      data templates(21)%needext /.false./
      data (templates(21)%mappds(j),j=1,15)
     &                     /1,1,1,1,1,2,1,1,4,1,1,1,4,4,2/

      data templates(22)%template_num /1100/     !  Hovmoller grid
      data templates(22)%mappdslen /15/
      data templates(22)%needext /.false./
      data (templates(22)%mappds(j),j=1,15)
     &                     /1,1,1,1,1,2,1,1,4,1,-1,-4,1,-1,-4/

      data templates(23)%template_num /1101/     !  Hovmoller with stat proc
      data templates(23)%mappdslen /22/
      data templates(23)%needext /.false./
      data (templates(23)%mappds(j),j=1,22)
     &               /1,1,1,1,1,2,1,1,4,1,-1,-4,1,-1,-4,4,1,1,1,4,1,4/


      contains

         integer function getpdsindex(number)
!$$$  SUBPROGRAM DOCUMENTATION BLOCK
!                .      .    .                                       .
! SUBPROGRAM:    getpdsindex
!   PRGMMR: Gilbert         ORG: W/NP11    DATE: 2001-06-28
!
! ABSTRACT: This function returns the index of specified Product
!   Definition Template 4.NN (NN=number) in array templates.
!
! PROGRAM HISTORY LOG:
! 2001-06-28  Gilbert
!
! USAGE:    index=getpdsindex(number)
!   INPUT ARGUMENT LIST:
!     number   - NN, indicating the number of the Product Definition
!                Template 4.NN that is being requested.
!
! RETURNS:  Index of PDT 4.NN in array templates, if template exists.
!           = -1, otherwise.
!
! REMARKS: None
!
! ATTRIBUTES:
!   LANGUAGE: Fortran 90
!   MACHINE:  IBM SP
!
!$$$
           integer,intent(in) :: number

           getpdsindex=-1

           do j=1,MAXTEMP
              if (number.eq.templates(j)%template_num) then
                 getpdsindex=j
                 return
              endif
           enddo

         end function