Tuflow and estry manual Version 3

It is recommended that existing 1d_nwk attribute names be changed to the above.

2003-07-AF	Changed the .eof regime flag for when the velocity rate limit is applied from “*” to “L” (* used for other things). Fixed up a couple of bugs that effect reading of fixed field NA tables since introduction of flow width parameter.
2003-07-AE	Added new check file 1d_hydprop.mif that outputs the hydraulic properties of the channels at the top of the channel section. Very useful for checking flow widths, etc.
2003-07-AD	Fixed recent bug that causes crash when trying to read fixed field 1D boundary conditions.
2003-07-AC	Added in check for decreasing conveyance with height for channel cross-sections. Issued as a WARNING. Fixed bug that assigns an incorrect value to top of section flow width for channel sections read from fixed field flow width tables. Not backward compatible – only effects fixed field CS table input where the water level as exceeded the top of the channel. Improved .eof output for culvert section information. Circular culvert info no longer output as a CS table. Added top of cross-section output list to .eof file before CS tables. Setup code to include development of morphologic routines. New command for .tcf “MORPHOLOGY CALCULATIONS == [ ON | {OFF} ]” (not supported as yet). New Map Output Data Type of “ZH” to output model bathymetry using ZH values.
2003-07-AB	Increased maximum number of polygons in a single region from 100 to 1,000.
2003-07-AA	Relative Resistance in .ecf file now redundant (as of Build 2003-03-AA) and has been removed. Will have to remove any references to command.
2003-06-AE	Noticed that when a 2d_po flow line is snapped to a cell corner the result may be incorrect for the snapped cell only – very difficult to code to fix this. Added Unused HX and SX Connections to .tbc file to switch between ERROR and WARNING for different 2d_bc layers if desired. New time-series file (extension .ts1) option for input of hydrographs. Utility program “convert_to_ts1.exe” converts WBNM (and in the future others such as RAFTS, URBS, etc) into .ts1 format. This facilitates faster array size allocation and read of data for large hydrology model outputs (reduced Fairy Ck from 24 minutes start-up to 4 minutes). The .ts1 file is used in the BC database in the same manner of other source files. Note, there is presently a 12 character limit on the name of the boundary. Increased maximum line length from 1,000 to 10,000 characters for reading of boundary data from BC source files.
2003-06-AD	Fixed bug from 2003-06-AA that stuffed up 1D/2D flow calcs across HX lines. Now tested and works fine. 2003-06-AA to 2003-06-AC are not to be used. Now use the Divergence attribute in 1d_nwk layer to represent %blockage on culverts. For R culverts, the culvert width is reduced by the %blockage, while for circular culverts the pipe diameter is reduced by the sqrt(%blockage). Divergence field is now not used – not backward compatible - renamed Blockage (enter as a %).
2003-06-AC	New .tcf command Unused HX and SX Connections == [ {ERROR} | WARNING ]. If set to ERROR, the program stops, otherwise a WARNING is issued to the _messages.mif file.
2003-06-AB	Fixed bug that failed to allocate 2D SX cells from SX polylines. Only effects one cell along each line segment after the first segment. Does not affect single segment polylines or points. Not backward compatible. Added 2D SX cells to 1D node links to 1d_to_2d.mif check file. Note, if a cell appears to not be linked when it should be, this is probably due to a double link. Tidied up HS output to 2d_bc_tables.csv check file. Should now recognise HS fixed input from both 1D and 2D sources (previously only 1D).
2003-06-AA	Fixed bug that incorrectly calculated the flow interchange across 2D HX lines where a FC cell shared a common boundary with a HX cell. Replaced “-“ sign in _TS.mif attribute names with “_” for negative numbers (MapInfo does not like “-“ in attribute names). Fixed apparent bug that if the last PO was a Q with the same label as a previous straight line, it was not included in the accumulation of all Qs for that label (bug never reported). Fixed long-standing bug (at least to code from pre-1990) for 1D VG channels. Consequence is that they have never worked correctly. Not backward compatible. New .mif check file 1d_to_2d that shows which HX cells are allocated to ESTRY nodes for transfer of water between 2D cells and nodes. This is useful when digitising 2d_po flow lines that cross through 1D domains. The 2d_po line should pass between the different regions in the check file. New ERROR check for any unsnapped or unused 2D (CN) connections. If this occurs with an old model, the connections will have to be deleted from the GIS layer for the error not to occur (this of course should not be needed!). New .ecf file command Output Times Same as 2D == [ {ON} | OFF ]. By default, if either of the Time Series commands in the .tcf file are used, 1D output will be at the same times as the 2D time series output. This allows the synchronising of 2D and 1D time-series output in the new _TS.mif file. If set to OFF, this provides backward compatibility for output for earlier models, however, no 2d_po will be written to the _TS.mif file. Hopefully finished incorporating 2d_po into _TS.mif output.
2003-05-AG	Started incorporating 2d_po into _TS .mif output.
2003-05-AF	Fixed rare bug in selecting 2D cells, Zpts, etc within a MIF region that occurs where the first point in the region is repeated elsewhere in the region (excepting the end point). This may occur as a result of “sloppy” digitising, etc. Not backward compatibile. As a result of the above there is now a limit of 100 polygons within a region – this can be increased if needed (increased to 1,000 for Build 2003-07-AB). Fixed recent bug that didn’t recognise “RD” flag in old fixed field format .ecf files.
2003-05-AE	Fixed bug that ignored Flags attribute values in 2d_bc layers (eg. “S” for spline fit) for time-series boundaries. 2D HX and SX flags are OK. Changed 1d_bc "Ignore" attribute to "Flags" to be compatible with 2d_bc attributes. “S” for spline should now work for time-series boundaries. For backward compatibility, a “T” flag will ignore the 1D BC (“T” meaning true for Ignore). The 1d_bc layer does not need to be changed, as the previous Ignore values of “T” or “F” will be read into the Flags attribute. Any “F” values are removed in the 1d_bc check layer.