pesg::xmtoxc_ak Interface Reference

Public Member Functions
subroutine	xmtoxc_ak (a, k, xm, xc, xcd, ff)
	Assuming the A-K parameterization of the Extended Schmidt-transformed Gnomonic (ESG) mapping, and given a map-space 2-vector, xm, find the corresponding cartesian unit 3-vector and its derivative wrt xm, jacobian matrix, xcd.
subroutine	xmtoxc_vak (ak, xm, xc, xcd, ff)
	Assuming the vector AK parameterization of the Extended Schmidt-transformed Gnomonic (ESG) mapping with parameter vector, and given a map-space 2-vector, xm, find the corresponding cartesian unit 3-vector and its derivative wrt xm, the Jacobian matrix, xcd.
subroutine	xmtoxc_vak1 (ak, xm, xc, xcd, xc1, xcd1, ff)
	Like xmtoxc_vak, _ak, but also return derivatives wrt ak.

Detailed Description

Definition at line 34 of file pesg.f90.

Constructor & Destructor Documentation

xmtoxc_ak()

subroutine pesg::xmtoxc_ak::xmtoxc_ak	(	real(dp), intent(in)	a,
		real(dp), intent(in)	k,
		real(dp), dimension(2), intent(in)	xm,
		real(dp), dimension(3), intent(out)	xc,
		real(dp), dimension(3,2), intent(out)	xcd,
		logical, intent(out)	ff )

Assuming the A-K parameterization of the Extended Schmidt-transformed Gnomonic (ESG) mapping, and given a map-space 2-vector, xm, find the corresponding cartesian unit 3-vector and its derivative wrt xm, jacobian matrix, xcd.

If for any reason the mapping cannot be done, return a raised failure flag, FF.

Parameters

[in]	a	ESG mapping parameter for line spacing profile
[in]	k	ESG mapping parameter for Gauss curvature in Schmidt mapping
[in]	xm	map-space 2-vector
[out]	xc	Earth-centered cartesian unit 3-vector
[out]	xcd	Jacobian matrix, d(xc)/d(xm)
[out]	ff	Failure flag

Author

R. J. Purser

Definition at line 439 of file pesg.f90.

Member Function/Subroutine Documentation

xmtoxc_vak()

subroutine pesg::xmtoxc_ak::xmtoxc_vak	(	real(dp), dimension(2), intent(in)	ak,
		real(dp), dimension(2), intent(in)	xm,
		real(dp), dimension(3), intent(out)	xc,
		real(dp), dimension(3,2), intent(out)	xcd,
		logical, intent(out)	ff )

Assuming the vector AK parameterization of the Extended Schmidt-transformed Gnomonic (ESG) mapping with parameter vector, and given a map-space 2-vector, xm, find the corresponding cartesian unit 3-vector and its derivative wrt xm, the Jacobian matrix, xcd.

If for any reason the mapping cannot be done, return a raised failure flag,z FF.

Parameters

[in]	ak	2-vector parameterization of the ESG mapping
[in]	xm	2-vector of map plane coordinates
[out]	xc	Earth-centered cartesian unit 3-vector
[out]	xcd	Jacobian, d(xc)/d(xm)
[out]	ff	Failure flag

Author

R. J. Purser

Definition at line 380 of file pesg.f90.

xmtoxc_vak1()

subroutine pesg::xmtoxc_ak::xmtoxc_vak1	(	real(dp), dimension(2), intent(in)	ak,
		real(dp), dimension(2), intent(in)	xm,
		real(dp), dimension(3), intent(out)	xc,
		real(dp), dimension(3,2), intent(out)	xcd,
		real(dp), dimension(3,2), intent(out)	xc1,
		real(dp), dimension(3,2,2), intent(out)	xcd1,
		logical, intent(out)	ff )

Like xmtoxc_vak, _ak, but also return derivatives wrt ak.

Parameters

[in]	ak	2-vector parameterization of the ESG mapping
[in]	xm	2-vector of map plane coordinates
[out]	xc	Earth-centered cartesian unit 3-vector
[out]	xcd	Jacobian of xc wrt xm, d(xc)/d(xm)
[out]	xc1	Partial derivatives wrt ak of xc, d(xc)/d(ak)
[out]	xcd1	Second derivative wrt xm and ak of xc, d^2(xc)/(d(xm)d(ak))
[out]	ff	Failure flag

Author

R. J. Purser

Definition at line 399 of file pesg.f90.

References pesg::xmtoxt1(), and pesg::xttoxs1().

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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