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sparkfun / SparkFun_u-blox_GNSS_Arduino_Library

An Arduino library which allows you to communicate seamlessly with the full range of u-blox GNSS modules
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Note that the MSL model is a gridded EGM96 geoid #182

Closed drf5n closed 1 year ago

drf5n commented 1 year ago

Here the code has a couple references to the MSL model:

https://github.com/sparkfun/SparkFun_u-blox_GNSS_Arduino_Library/blob/2ae72895a1194c77e0628d50ec51937016ac7466/src/SparkFun_u-blox_GNSS_Arduino_Library.cpp#L17402-L17405

It should also refer to uBlox at

https://portal.u-blox.com/s/question/0D52p00008HKDSkCAP/what-geoid-model-is-used-and-where-is-this-calculated ...which seems to indicate EGM96 on a 10°x10° grid, interpolated to the location.

Maybe add a line like:

// Geoid: https://cddis.nasa.gov/926/egm96/egm96.html on 10x10 degree grid
PaulZC commented 1 year ago

Hi @drf5n ,

Thanks! We'll add this to the next release.

Best wishes, Paul