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

         subroutine getpdstemplate(number,nummap,map,needext,iret)
!$$$  SUBPROGRAM DOCUMENTATION BLOCK
!                .      .    .                                       .
! SUBPROGRAM:    getpdstemplate 
!   PRGMMR: Gilbert         ORG: W/NP11    DATE: 2000-05-11
!
! ABSTRACT: This subroutine returns PDS template information for a 
!   specified Product Definition Template 4.NN.
!   The number of entries in the template is returned along with a map
!   of the number of octets occupied by each entry.  Also, a flag is
!   returned to indicate whether the template would need to be extended.
!
! PROGRAM HISTORY LOG:
! 2000-05-11  Gilbert
!
! USAGE:    CALL getpdstemplate(number,nummap,map,needext,iret)
!   INPUT ARGUMENT LIST:
!     number   - NN, indicating the number of the Product Definition 
!                Template 4.NN that is being requested.
!
!   OUTPUT ARGUMENT LIST:      
!     nummap   - Number of entries in the Template
!     map()    - An array containing the number of octets that each 
!                template entry occupies when packed up into the PDS.
!     needext  - Logical variable indicating whether the Product Defintion
!                Template has to be extended.  
!     ierr     - Error return code.
!                0 = no error
!                1 = Undefine Product Template number.
!
! REMARKS: None
!
! ATTRIBUTES:
!   LANGUAGE: Fortran 90
!   MACHINE:  IBM SP
!
!$$$
           integer,intent(in) :: number
           integer,intent(out) :: nummap,map(*),iret
           logical,intent(out) :: needext

           iret=0

           index=getpdsindex(number)

           if (index.ne.-1) then
              nummap=templates(index)%mappdslen
              needext=templates(index)%needext
              map(1:nummap)=templates(index)%mappds(1:nummap)
           else
             nummap=0
             needext=.false.
             print *,'getpdstemplate: PDS Template ',number,
     &               ' not defined.'
             iret=1
           endif

         end subroutine

         subroutine extpdstemplate(number,list,nummap,map)
!$$$  SUBPROGRAM DOCUMENTATION BLOCK
!                .      .    .                                       .
! SUBPROGRAM:    extpdstemplate 
!   PRGMMR: Gilbert         ORG: W/NP11    DATE: 2000-05-11
!
! ABSTRACT: This subroutine generates the remaining octet map for a
!   given Product Definition Template, if required.  Some Templates can
!   vary depending on data values given in an earlier part of the 
!   Template, and it is necessary to know some of the earlier entry
!   values to generate the full octet map of the Template.
!
! PROGRAM HISTORY LOG:
! 2000-05-11  Gilbert
!
! USAGE:    CALL extpdstemplate(number,list,nummap,map)
!   INPUT ARGUMENT LIST:
!     number   - NN, indicating the number of the Product Definition 
!                Template 4.NN that is being requested.
!     list()   - The list of values for each entry in the 
!                the Product Definition Template 4.NN.
!
!   OUTPUT ARGUMENT LIST:      
!     nummap   - Number of entries in the Template
!     map()    - An array containing the number of octets that each 
!                template entry occupies when packed up into the GDS.
!
! ATTRIBUTES:
!   LANGUAGE: Fortran 90
!   MACHINE:  IBM SP
!
!$$$
           integer,intent(in) :: number,list(*)
           integer,intent(out) :: nummap,map(*)

           index=getpdsindex(number)
           if (index.eq.-1) return

           if ( .not. templates(index)%needext ) return
           nummap=templates(index)%mappdslen
           map(1:nummap)=templates(index)%mappds(1:nummap)

           if ( number.eq.3 ) then
              N=list(27)
              do i=1,N
                map(nummap+i)=1
              enddo
              nummap=nummap+N
           elseif ( number.eq.4 ) then
              N=list(26)
              do i=1,N
                map(nummap+i)=1
              enddo
              nummap=nummap+N
           elseif ( number.eq.8 ) then
              if ( list(22).gt.1 ) then
                do j=2,list(22)
                  do k=1,6
                    map(nummap+k)=map(23+k)
                  enddo
                  nummap=nummap+6
                enddo
              endif
           elseif ( number.eq.9 ) then
              if ( list(29).gt.1 ) then
                do j=2,list(29)
                  do k=1,6
                    map(nummap+k)=map(30+k)
                  enddo
                  nummap=nummap+6
                enddo
              endif
           elseif ( number.eq.10 ) then
              if ( list(23).gt.1 ) then
                do j=2,list(23)
                  do k=1,6
                    map(nummap+k)=map(24+k)
                  enddo
                  nummap=nummap+6
                enddo
              endif
           elseif ( number.eq.11 ) then
              if ( list(25).gt.1 ) then
                do j=2,list(25)
                  do k=1,6
                    map(nummap+k)=map(26+k)
                  enddo
                  nummap=nummap+6
                enddo
              endif
           elseif ( number.eq.12 ) then
              if ( list(24).gt.1 ) then
                do j=2,list(24)
                  do k=1,6
                    map(nummap+k)=map(25+k)
                  enddo
                  nummap=nummap+6
                enddo
              endif
           elseif ( number.eq.13 ) then
              if ( list(38).gt.1 ) then
                do j=2,list(38)
                  do k=1,6
                    map(nummap+k)=map(39+k)
                  enddo
                  nummap=nummap+6
                enddo
              endif
              N=list(27)
              do i=1,N
                map(nummap+i)=1
              enddo
              nummap=nummap+N
           elseif ( number.eq.14 ) then
              if ( list(37).gt.1 ) then
                do j=2,list(37)
                  do k=1,6
                    map(nummap+k)=map(38+k)
                  enddo
                  nummap=nummap+6
                enddo
              endif
              N=list(26)
              do i=1,N
                map(nummap+i)=1
              enddo
              nummap=nummap+N
           elseif ( number.eq.30 ) then
              do j=1,list(5)
                map(nummap+1)=2
                map(nummap+2)=2
                map(nummap+3)=1
                map(nummap+4)=1
                map(nummap+5)=4
                nummap=nummap+5
              enddo
           endif

         end subroutine

         integer function getpdtlen(number)
!$$$  SUBPROGRAM DOCUMENTATION BLOCK
!                .      .    .                                       .
! SUBPROGRAM:    getpdtlen
!   PRGMMR: Gilbert         ORG: W/NP11    DATE: 2004-05-11
!
! ABSTRACT: This function returns the initial length (number of entries) in 
!   the "static" part of specified Product Definition Template 4.number.
!
! PROGRAM HISTORY LOG:
! 2004-05-11  Gilbert
!
! USAGE:    CALL getpdtlen(number)
!   INPUT ARGUMENT LIST:
!     number   - NN, indicating the number of the Product Definition 
!                Template 4.NN that is being requested.
!
! RETURNS:     Number of entries in the "static" part of PDT 4.number
!              OR returns 0, if requested template is not found.
!
! REMARKS: If user needs the full length of a specific template that
!    contains additional entries based on values set in the "static" part
!    of the PDT, subroutine extpdstemplate can be used.
!
! ATTRIBUTES:
!   LANGUAGE: Fortran 90
!   MACHINE:  IBM SP
!
!$$$
           integer,intent(in) :: number

           getpdtlen=0

           index=getpdsindex(number)

           if (index.ne.-1) then
              getpdtlen=templates(index)%mappdslen
           endif

         end function


      end module