Calculating Each Cell's Area in a Raster

Discussion created by jmav00 on Jan 11, 2012
Latest reply on Jan 11, 2012 by Dan_Patterson

    I have a dataset that was originally in a decimal degrees projection. It is a raster of the globe, in 5 arc minute resolution.

    The final product I need is the same raster, with the each individual cell's value being its area, in hectares. These would essentially be highest around the equator (at around 8,000), and smooth out gradually to ~5,000 near the poles.

    After doing a lot of research on the forums, I've reprojected the dataset into an equal area projection (cylindrical equal area) as some have recommended. I am however stumped on how to use the raster calculator (or any other tool) to now calculate the area of each cell and assign this value to it in a new raster.

    Any ideas?
    Happy to elaborate more if any part of the above is unclear.

    Thank you!