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RemoteSensing/Imagine: What map projections should I use for global spatial data?

April 26, 2017Data global imagine map projections spatial

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RemoteSensing/Imagine: What map projections should I use for global spatial data?

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Ahh… global projections are a thorny issue. You may want to use a projection other than UTM due to the different parameters needed to project UTM for different locations on the globe. The remote sensing community working with AVHRR 8km data has settled on using Goodes Homolosine Interrupted projection as a global compromise. The global grid ends up being 2168 rows by 5004 columns. Their global data is also provided in platte carre (i.e. Lat/Lon) which at 0.1 degree (btw 7-10 km depending on where you are on the globe) ends up being 1800 rows by 3600 columns.