MERRA-2 Grid Coordinates

[michaelwindsorcurtin]

Hello. I apologise if this is a simple question but I am wondering whether the coordinates in MERRA-2 correspond to the centre of the 0.625° x 0.5°grid? Is there anywhere in the documentation where this is explicitly stated?

[GES DISC - xpan2]

Yes, the coordinates in MERRA-2 correspond to the center of the 0.625° x 0.5°grid.

For additional information on MERRA-2's grid structure , please read MERRA-2 File
Specification Document (Chapter 4)
(https://gmao.gsfc.nasa.gov/pubs/docs/Bosilovich785.pdf), and refer to the
MERRA-2 project page:
https://disc.gsfc.nasa.gov/information/mission-project?title=MERRA-2#section+0

Regards,
NASA GES DISC MERRA-2 support team