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SCEDC / ground-motion-packet

Description of GMP —A GeoJSON Specification for Ground Motion Metrics
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should event use geojson coordinates? #6

Closed SCEDC closed 2 years ago

SCEDC commented 2 years ago

the 3rd item in geojson coordinates list is technically defined as height in meters above WGS datum. This differs from usual convention for an event which is units in km and positive downward.

[https://datatracker.ietf.org/doc/html/rfc7946#page-12](geojson spec)

If we keep usual convention (different from geojson spec), it would also be inconsistent with usage of station coordinates.

steidljh commented 2 years ago

I think we should probably stick with the geojson spec. If I see and event lat/lon/neg depth of (-10000) I'm going to know this isn't kilometers. I don't know the downstream implications for this with other applications like ShakeMap.

SCEDC commented 2 years ago

group is agreement to use elevation in meters as dictated by GeoJSON spec for all features including event.

SCEDC commented 2 years ago

resolved in 4b1e545289d8e8135e91a40a8a547319b52fdfeb