Map phsyiographic feature component of IGSN

[cmungall]

See http://www.geosamples.org/help/vocabularies

abyssal feature alluvial fan anticline aquifer arch (natural formation) arroyo badlands bank (hydrographic) bar (physiographic) basin bay beach bight canyon cape cave channel cirque cliff continental divide continental margin crater delta drainage basin drumlin dune earthquake feature estuary fault fault zone flat floodplain fold (geologic) fracture zone gap gulf gut hydrothermal vent ice mass isthmus karst area lake lava field ledge massif mesa mineral deposit area moraine mountain mountain range mountain summit ocean trench outcrop plain plateau playa reef ridge rift zone roadcut seamount sea stream submarine canyon syncline thermal feature valley volcano

[cmungall]

Reopening as the results need to be evaluated

Most are obvious, but some not, due to lack of IGNS defintions. E.g. is 'reef' a coral reef, or the more general 'marine reef'?

Also some terms still unmapped

[cmungall]

The current mappings can be seen here:

https://github.com/EnvironmentOntology/envo/blob/master/src/envo/sources/align-igsn.tsv

Note that the location and format will change (format will switch to SSSOM)

The main columns to look at are 1-4

• anticline
• arch (natural formation)
• arroyo
• bank (hydrographic)
• bar (physiographic)
• bight
• cape
• earthquake feature
• fault
• fault zone
• fold (geologic)
• fracture zone
• gap
• gulf
• gut
• karst area
• ledge
• mineral deposit area
• playa
• roadcut
• sea
• syncline

I have no idea why some like "sea" were not mapped in the first pass. I think many of these are in ENVO. I just haven't had time to check. We may need to add a few terms