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| 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).
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Definition at line 47 of file pesg.f90.
◆ hgrid_ak_dc()
| subroutine pesg::hgrid_ak_dc::hgrid_ak_dc |
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integer(spi), intent(in) | lx, |
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integer(spi), intent(in) | ly, |
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integer(spi), intent(in) | nx, |
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integer(spi), intent(in) | ny, |
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real(dp), intent(in) | a, |
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real(dp), intent(in) | k, |
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real(dp), intent(in) | pdlat, |
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real(dp), intent(in) | pdlon, |
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real(dp), intent(in) | pdazi, |
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real(dp), intent(in) | delx, |
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real(dp), intent(in) | dely, |
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real(dp), dimension(3, lx:lx+nx ,ly:ly+ny ), intent(out) | xc, |
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real(dp), dimension(3,2,lx:lx+nx ,ly:ly+ny ), intent(out) | xcd, |
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real(dp), dimension( lx:lx+nx-1,ly:ly+ny-1), intent(out) | garea, |
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logical, intent(out) | 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).
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
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| [in] | lx | center-relative x grid index for left edge of the domain |
| [in] | ly | center-relative y grid index for lower edge of the domain |
| [in] | nx | numbers of the grid spaces in x |
| [in] | ny | numbers of the grid spaces in y |
| [in] | a | parameters of an ESG mapping |
| [in] | k | parameters of an ESG mapping |
| [in] | pdlat | degrees latitude of the projection center of the mapping |
| [in] | pdlon | degrees longitude of the projection center of the mapping |
| [in] | pdazi | azimuth of the orientation of the mapping at its center |
| [in] | delx | central x-spacing of the grid in radians |
| [in] | dely | central y-spacing of the grid in radians |
| [out] | xc | grid points' earth-centered unit cartesians |
| [out] | xcd | Jacobian matrices, d(xc)/d(xm) |
| [out] | garea | array of grid-cell areas (steradians) |
| [out] | ff | failure flag |
- Author
- R. J. Purser
Definition at line 1722 of file pesg.f90.
The documentation for this interface was generated from the following file:
- /scratch4/NCEPDEV/nems/Brian.Curtis/git/BrianCurtis-NOAA/UFS_UTILS/v1_14_0/sorc/grid_tools.fd/regional_esg_grid.fd/pesg.f90
1.11.0