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Not an expert in reading or interpreting map-projections. I have data set with the following description.

The coordinates are in Albers Equal Area Conic projection, with the following projection settings: Scale = 1; False Easting(m) = 5000000; False Northing(m) = 0; Longitude Origin = 20; Latitude Origin = 0; Standard Parallel 1 = 45; Standard Parallel 2 = 55, and the Ellipsoid is WGS 84.

Is it the equivalent for +proj=lonlat +datum=WGS84

Thanks for the help.

acraig5075
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No, why would you think they're equivalent, completely different in fact.

Try: +proj=aea +lat_1=45 +lat_2=55 +lon_0=20 +x_0=5000000 +datum=WGS84

https://github.com/OSGeo/proj.4/wiki/GenParms

acraig5075
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  • Note that the `datum` argument should be capitalized, i.e., `+dataum=WGS84` – Rider_X Feb 13 '14 at 18:50
  • @Matifou Agreed, most unfortunate. I've fixed the one, and removed the other. See [this advisory](https://madfileformatscience.garymcgath.com/2016/09/08/libtiff-offline/). – acraig5075 Sep 04 '17 at 18:57