Commit 79ce073f authored by Uwe Schulzweida's avatar Uwe Schulzweida
Browse files

Docu update

parent 6413dd74
......@@ -4,6 +4,7 @@ CDO NEWS
Version 1.7.0 (28 October 2015):
New features:
* added support for hybrid sigma pressure coordinates following the CF convention
* distgrid: added support for curvilinear grids
* collgrid: added support for curvilinear grids
New operators:
......
......@@ -16,23 +16,3 @@ This operator computes the sea level pressure (air_pressure_at_sea_level). Requi
are surface_air_pressure, surface_geopotential and air_temperature on hybrid sigma pressure levels.
@EndDescription
@EndOperator
@BeginNote
The netCDF CF convention for vertical hybrid coordinates is not supported, yet!
The vertical coordinate definition of a netCDF file has to follow the ECHAM convention.
This means:
@BeginItemize
@Item = the dimension of the full level coordinate and the corresponding variable is called mlev,
@Item = the dimension of the half level coordinate and the corresponding variable is called ilev (ilev must have one element more than mlev)
@Item = the hybrid vertical coefficient a is given in units of Pa and called hyai (hyam for level midpoints)
@Item = the hybrid vertical coefficient b is given in units of 1 and called hybi (hybm for level midpoints)
@Item = the mlev variable has a borders attribute containing the character string 'ilev'
@EndItemize
Use the @mod{sinfo} command to test if your vertical coordinate system is recognized as hybrid system.
In case this operator complains about not finding any data on hybrid model levels you may wish
to use the @mod{setzaxis} command to generate a zaxis description which conforms to the ECHAM convention.
See section "1.4 Z-axis description" for an example how to define a hybrid Z-axis.
@EndNote
\ No newline at end of file
......@@ -7,7 +7,7 @@
@Operators = invertlev
@BeginDescription
This operator inverts the levels of all non hybrid 3D variables.
This operator inverts the levels of all 3D variables.
@EndDescription
@EndModule
......
......@@ -58,26 +58,6 @@ If set to 1 extrapolate missing values.
@EndEnvironment
@BeginNote
The netCDF CF convention for vertical hybrid coordinates is not supported, yet!
The vertical coordinate definition of a netCDF file has to follow the ECHAM convention.
This means:
@BeginItemize
@Item = the dimension of the full level coordinate and the corresponding variable is called mlev,
@Item = the dimension of the half level coordinate and the corresponding variable is called ilev (ilev must have one element more than mlev)
@Item = the hybrid vertical coefficient a is given in units of Pa and called hyai (hyam for level midpoints)
@Item = the hybrid vertical coefficient b is given in units of 1 and called hybi (hybm for level midpoints)
@Item = the mlev variable has a borders attribute containing the character string 'ilev'
@EndItemize
Use the @mod{sinfo} command to test if your vertical coordinate system is recognized as hybrid system.
In case this operator complains about not finding any data on hybrid model levels you may wish
to use the @mod{setzaxis} command to generate a zaxis description which conforms to the ECHAM convention.
See section "1.4 Z-axis description" for an example how to define a hybrid Z-axis.
@EndNote
@BeginExample
To interpolate hybrid model level data to pressure levels of 925, 850, 500 and 200 hPa use:
@BeginVerbatim
......
......@@ -1113,7 +1113,7 @@ static char *InvertlevHelp[] = {
" invertlev ifile ofile",
"",
"DESCRIPTION",
" This operator inverts the levels of all non hybrid 3D variables.",
" This operator inverts the levels of all 3D variables.",
NULL
};
......@@ -3653,22 +3653,6 @@ static char *VertintmlHelp[] = {
"ENVIRONMENT",
" EXTRAPOLATE",
" If set to 1 extrapolate missing values.",
"",
"NOTE",
" The netCDF CF convention for vertical hybrid coordinates is not supported, yet!",
" The vertical coordinate definition of a netCDF file has to follow the ECHAM convention.",
" This means:",
" - the dimension of the full level coordinate and the corresponding variable is called mlev,",
" - the dimension of the half level coordinate and the corresponding variable is called ilev (ilev must have one element more than mlev)",
" - the hybrid vertical coefficient a is given in units of Pa and called hyai (hyam for level midpoints)",
" - the hybrid vertical coefficient b is given in units of 1 and called hybi (hybm for level midpoints)",
" - the mlev variable has a borders attribute containing the character string 'ilev'",
" ",
" Use the sinfo command to test if your vertical coordinate system is recognized as hybrid system.",
" ",
" In case this operator complains about not finding any data on hybrid model levels you may wish",
" to use the setzaxis command to generate a zaxis description which conforms to the ECHAM convention.",
" See section \"1.4 Z-axis description\" for an example how to define a hybrid Z-axis.",
NULL
};
......@@ -4443,22 +4427,6 @@ static char *DeriveparHelp[] = {
"DESCRIPTION",
" This operator computes the sea level pressure (air_pressure_at_sea_level). Required input fields",
" are surface_air_pressure, surface_geopotential and air_temperature on hybrid sigma pressure levels.",
"",
"NOTE",
" The netCDF CF convention for vertical hybrid coordinates is not supported, yet!",
" The vertical coordinate definition of a netCDF file has to follow the ECHAM convention.",
" This means:",
" - the dimension of the full level coordinate and the corresponding variable is called mlev,",
" - the dimension of the half level coordinate and the corresponding variable is called ilev (ilev must have one element more than mlev)",
" - the hybrid vertical coefficient a is given in units of Pa and called hyai (hyam for level midpoints)",
" - the hybrid vertical coefficient b is given in units of 1 and called hybi (hybm for level midpoints)",
" - the mlev variable has a borders attribute containing the character string 'ilev'",
" ",
" Use the sinfo command to test if your vertical coordinate system is recognized as hybrid system.",
" ",
" In case this operator complains about not finding any data on hybrid model levels you may wish",
" to use the setzaxis command to generate a zaxis description which conforms to the ECHAM convention.",
" See section \"1.4 Z-axis description\" for an example how to define a hybrid Z-axis.",
NULL
};
......
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