For general information, see the ADCIRC site, ADCIRC FAQ, or the ADCIRC Wikipedia page. For model documentation not yet available on the wiki, see the ADCIRC site. New content is being continuously added to the ADCIRCWiki, and material from the main ADCIRC site will be gradually transitioned over to the wiki.
The surface temperature boundary condition input file (fort.38) is read in when the RES_BC_FLAG is set to -3, 3, -4, or 4 in the fort.15 file (i.e., when a lateral temperature boundary condition is being used) and its format depends on the BCFLAG_TEMP parameter in the fort.15 file, which controls the surface heat flux parameterization in ADCIRC.
See fort.38 file format for details.