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blaylockbk
/ nearest_latlon_index.py
Created
July 27, 2020 20:28
I often have xarray datasets with latitude and longitude coordinates (not as xarray dimensions). When I need to pluck values from a point nearest to a specific lat/lon coordinate (like a weather station), this is what I use...
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| import numpy as np | |
| import xarray as xr | |
| def to_180(lon): | |
| """ | |
| Wrap longitude from degrees [0, 360] to degrees [-180, 180]. | |
| An alternative method is | |
| lon[lon>180] -= 360 |
