Tom Patterson
Schemes for topographic maps by Tom Patterson. The variants are for US (tpus), global (tpgl) and seafloor (tpsfh), with subtypes for arid (ar) humid (hu), humid warm (hw), humid cold (hc) and polar (po), in feet and metres.
tpglarf
tpglarm
tpglhcf
tpglhcm
tpglhwf
tpglhwm
tpglpof
tpglpom
tpsfhf
tpsfhm
tpusarf
tpusarm
tpushuf
tpushum