Changeset 2413

Timestamp:

Feb 15, 2006, 11:15:20 AM (19 years ago)

Author:

ole

Message:

Moved stuff from old pyvolution docu

File:

• documentation/user_manual/anuga_user_manual.tex (modified) (1 diff)

documentation/user_manual/anuga_user_manual.tex

@@ -608 +608 @@
 \chapter{ANUGA system architecture}
 
-Take some stuff from pyvolution/documentation and update it.
-
+From pyvolution/documentation
+
+
+
+\chapter{Basic ANUGA assumptions}
+
+(From pyvolution/documentation)
+
+
+Physical model time cannot be earlier than 1 Jan 1970 00:00:00.
+If one wished to recreate scenarios prior to that date it must be done
+using some relative time (e.g. 0).
+
+
+All spatial data relates to the WGS84 datum (or GDA94) and has been
+projected into UTM with false easting of 500000 and false northing of
+1000000 on the southern hemisphere (0 on the northern).
+
+It is assumed that all computations take place within one UTM zone.
+
+DEMs, meshes and boundary conditions can have different origins within
+one UTM zone. However, the computation will use that of the mesh for 
+numerical stability.
+
+
+%OLD
+%The dataflow is: (See data_manager.py and from scenarios)
+%
+%
+%Simulation scenarios
+%--------------------%
+%%
+%
+%Sub directories contain scrips and derived files for each simulation.
+%The directory ../source_data contains large source files such as
+%DEMs provided externally as well as MOST tsunami simulations to be used
+%as boundary conditions.
+%
+%Manual steps are:
+%  Creation of DEMs from argcview (.asc + .prj)
+%  Creation of mesh from pmesh (.tsh)
+%  Creation of tsunami simulations from MOST (.nc)
+%%
+%
+%Typical scripted steps are%
+%
+%  prepare_dem.py:  Convert asc and prj files supplied by arcview to
+%                   native dem and pts formats%
+%
+%  prepare_pts.py: Convert netcdf output from MOST to an sww file suitable
+%                  as boundary condition%
+%
+%  prepare_mesh.py: Merge DEM (pts) and mesh (tsh) using least squares
+%                   smoothing. The outputs are tsh files with elevation data.%
+%
+%  run_simulation.py: Use the above together with various parameters to
+%                     run inundation simluation.