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Adding or averaging multiple grid arrays returns all NaNs [message #92722]

Wed, 17 February 2016 04:34

Luke Conibear
Messages: 6
Registered: February 2016

Junior Member

Hi,

I have a 2D grid array (lon, lat) for each day of my data:

GRID FLOAT = Array[3999, 1999]

This array is dispersed with values and plots to a map nicely.

When I add multiple grids together or average them (as below), every value in the 2D array turns to NaN, so the plot is blank.

TOTAL_GRID FLOAT = Array[3999, 1999]
total_grid = total_grid + grid
MEAN_GRID FLOAT = Array[3999, 1999]
mean_grid = total_grid / n_days

Does anyone know a solution, as looping for every lat and lon cell would be very computationally expensive for my large data set?

Thanks,
Luke

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[Message index]

		Adding or averaging multiple grid arrays returns all NaNs By: Luke Conibear on Wed, 17 February 2016 04:34
		Re: Adding or averaging multiple grid arrays returns all NaNs By: Dick Jackson on Thu, 18 February 2016 09:47
		Re: Adding or averaging multiple grid arrays returns all NaNs By: Luke Conibear on Thu, 18 February 2016 14:48
		Re: Adding or averaging multiple grid arrays returns all NaNs By: Mats Löfdahl on Fri, 19 February 2016 05:05
		Re: Adding or averaging multiple grid arrays returns all NaNs By: Luke Conibear on Fri, 19 February 2016 09:16

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