grid spacing in xarray example area calculation

[NickMortimer]

@jmunroe going through the example the latitude spacing is 2 degrees not 1 so area calculation is compromised

probably should be something like

dϕ = np.deg2rad(sst.lat.pointwidth)
dλ = np.deg2rad(sst.lon.pointwidth)
dA = R**2 * dϕ * dλ * np.cos(np.deg2rad(ds.lat.rename('area')))
dA.attrs['units'] ='m^2'
dA.plot()

Kind of want to do my first pull request for the pangeo community but need to find the source of this notebook

[jmunroe]

Create a pull request to the pangeo-data/agu-2018-tutorial repo. That the best way of getting that back to the Pangeo community.

On Fri, May 10, 2019 at 12:30 PM Nick Mortimer ***@***.***> wrote: @jmunroe <https://github.com/jmunroe> going through the example the latitude spacing is 2 degrees not 1 so area calculation is compromised probably should be something like dϕ = np.deg2rad(sst.lat.pointwidth) dλ = np.deg2rad(sst.lon.pointwidth) dA = R**2 * dϕ * dλ * np.cos(np.deg2rad(ds.lat.rename('area'))) dA.attrs['units'] ='m^2' dA.plot() Kind of want to do my first pull request for the pangeo community but need to find the source of this notebook — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#3>, or mute the thread <https://github.com/notifications/unsubscribe-auth/ABPFFO5Z6SPZ2UVLKSUTVLDPUTM4PANCNFSM4HL7LKXA> .

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