Hello Jorge,
Short answers to your questions:
1. If you want to use standard TELEMAC steered by keywords, you should follow the expected format of harmonic constants file, depending on what tidal database you use as input file. Please read appendices 3 or 4 of report:
opentelemac.org/index.php/component/jdow...atlantique?Itemid=55
2. If you use standard TELEMAC steered by keywords, several geographic systems (including UTM) are available to tell how your geometry file is built.
3. To my knowledge, I would answer no.
4. To my knowledge, I would answer no.
5. you can read:
sirocco.obs-mip.fr/other-tools/prepost-processing/comodo-tools/
sirocco.obs-mip.fr/other-tools/prepost-p...-tools/installation/
and
www5.obs-mip.fr/wp-content-omp/uploads/s...12/2016/10/ttb-1.pdf
or
mars3d.ifremer.fr/docs/val.tidaltoolbox.html
If you succeed in installating this tidal tool box (the main issue), it is better to use it, rather than generating harmonic constants file manually.
Good luck,
Chi-Tuan