Changes between Version 689 and Version 690 of doc/app/errmsg

Timestamp:

Apr 22, 2020 6:28:25 PM (5 years ago)

Author:

gronemeier

Comment:

--

doc/app/errmsg

@@ -725 +725 @@
 ||[=#PA0502 PA0502]   ||  ||  ||
 ||[=#PA0503 PA0503]   || z0 exceeds surface-layer height at horizontal/vertical natural/urban surface and is decreased appropriately || In PALM, Monin-Obukhov similarity is assumed between the surface and the first computational grid point normal to the surface. Because of the staggered grid, the distance between these two points is half of the grid spacing in the respective direction, i.e. dz/2 in vertical direction. The height z = dz/2 defines the top of the (analytical) logarithmic layer zs, which is called the surface layer height here. Now functions like {{{ln(zs/z0)}}}, where z0 is the roughness length, are used to calculate characteristic surface layer variables like u* or theta*. This mathematically requires that {{{zs > z0}}}, or in other words, that {{{z0 < dz/2}}}. In case you have run into this error, you either need to reduce the roughness length z0 or increase the grid spacing dz. \\ '''Attention:''' This message is given only once (for the first grid point where the exceedance has been detected). Be aware that there might be more grid points where z0 exceeds the surface-layer height. ||
-||[=#PA0505 PA0505]   || Terrain height was internally shifted downwards by ... meter(s) to save computational resources. || Lowest terrain height in model domain is referenced to zero. In case of a nested run, the lowest terrain height is the lowest height among all parent and child domains. Different offset values would lead to edges between the child-parent domain boundaries. \\ '''Important:''' You need to shift the respective heights of cross sections and masked output manually, if this informative message appears. ||
+||[=#PA0505 PA0505]   ||  ||  ||
 ||[=#PA0507 PA0507]   || z0h exceeds surface-layer height at horizontal/vertical natural/urban surface and is decreased appropriately || See [wiki:doc/app/errmsg#PA0503 error PA0503] for detailed explanation. ||
 ||[=#PA0508 PA0508]   || z0 exceeds surface-layer height at sea surface and is decreased appropriately || See [wiki:doc/app/errmsg#PA0503 error PA0503] for detailed explanation. ||
@@ -756 +756 @@
 ||[=#PA0549 PA0549]   || Static input file: horizontal grid spacing in x- and/or y-direction do not match the respective model dimension || ||
 ||[=#PA0550 PA0550]   || NetCDF variable zt is not allowed to have missing data || ||
-||[=#PA0551 PA0551]   || NetCDF variable zt is not allowed to have negative values || ||
+||[=#PA0551 PA0551]   ||  || ||
 ||[=#PA0552 PA0552]   || Reading 3D building data - too much data points along the vertical coordinate ||  ||
 ||[=#PA0553 PA0553]   || Reading 3D building data - vertical coordinate do not match numeric grid || The z-dimension in the static input file needs to match with the vertical numerical grid of the scalar grid points (center of the grid volume). The vertical grid for 3D buildings starts at the surface, i.e. at z=0.  ||