grid_tools  1.3.0
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pesg::hgrid_ak_dc Interface Reference

Private Member Functions

subroutine hgrid_ak_dc (lx, ly, nx, ny, a, k, pdlat, pdlon, pdazi, delx, dely, xc, xcd, garea, ff)
 Use a and k as the parameters of an Extended Schmidt-transformed Gnomonic (ESG) mapping centered at (pdlat,pdlon) and twisted about this center by an azimuth angle of pdazi counterclockwise (these angles in degrees). More...
 

Detailed Description

Definition at line 47 of file pesg.f90.

Constructor & Destructor Documentation

subroutine pesg::hgrid_ak_dc::hgrid_ak_dc ( integer(spi), intent(in)  lx,
integer(spi), intent(in)  ly,
integer(spi), intent(in)  nx,
integer(spi), intent(in)  ny,
real(dp), intent(in)  a,
real(dp), intent(in)  k,
real(dp), intent(in)  pdlat,
real(dp), intent(in)  pdlon,
real(dp), intent(in)  pdazi,
real(dp), intent(in)  delx,
real(dp), intent(in)  dely,
real(dp), dimension(3, lx:lx+nx ,ly:ly+ny ), intent(out)  xc,
real(dp), dimension(3,2,lx:lx+nx ,ly:ly+ny ), intent(out)  xcd,
real(dp), dimension( lx:lx+nx-1,ly:ly+ny-1), intent(out)  garea,
logical, intent(out)  ff 
)
private

Use a and k as the parameters of an Extended Schmidt-transformed Gnomonic (ESG) mapping centered at (pdlat,pdlon) and twisted about this center by an azimuth angle of pdazi counterclockwise (these angles in degrees).

Like hgrid_ak_rx, return the grid points' cartesians xc and Jacobian matrices, xcd. Garea, the area of each grid cell, is also returned as in hgrid_ak_rx, and a failure flag, ff, raised when a failure occurs anywhere in these calculations.

Parameters
[in]lxcenter-relative x grid index for left edge of the domain
[in]lycenter-relative y grid index for lower edge of the domain
[in]nxnumbers of the grid spaces in x
[in]nynumbers of the grid spaces in y
[in]aparameters of an ESG mapping
[in]kparameters of an ESG mapping
[in]pdlatdegrees latitude of the projection center of the mapping
[in]pdlondegrees longitude of the projection center of the mapping
[in]pdaziazimuth of the orientation of the mapping at its center
[in]delxcentral x-spacing of the grid in radians
[in]delycentral y-spacing of the grid in radians
[out]xcgrid points' earth-centered unit cartesians
[out]xcdJacobian matrices, d(xc)/d(xm)
[out]gareaarray of grid-cell areas (steradians)
[out]fffailure flag
Author
R. J. Purser

Definition at line 1721 of file pesg.f90.


The documentation for this interface was generated from the following file: