DEM 0.3.0

Improved DEM accuracy by better masking the coastal regions. The larger models are more accurate.

On a random sampling of 100 locations, the 50% to 90% quantiles are (+- meters):

• High: 4 - 30
• Medium: 10 - 30
• Low: 15 - 45
• Mini: 15 - 90

NOAA National Centers for Environmental Information. 2022: ETOPO 2022 15 Arc-Second Global Relief Model. NOAA National Centers for Environmental Information. https://doi.org/10.25921/fd45-gt74 . Accessed 2023-05-26. ETOPO 2022 metadata may be accessed here: ETOPO 2022 metadata landing page

DEM 0.2.0

Improved DEM resolution. Split into multiple models so users can choose the file size that is most appropriate for their use cases. The larger models are more accurate.

NOAA National Centers for Environmental Information. 2022: ETOPO 2022 15 Arc-Second Global Relief Model. NOAA National Centers for Environmental Information. https://doi.org/10.25921/fd45-gt74 . Accessed 2023-05-26. ETOPO 2022 metadata may be accessed here: ETOPO 2022 metadata landing page

DEM 0.1.0

Initial DEM release (ETOPO 15 arc second resolution, compressed)

8bit is smaller but less accurate than the 16bit.