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[ferret_users] minimum range for @DIN ?



Dear Ferreters,

Does @DIN have a minimum range?  It seems that it stops shrinking when the integration range shrinks below the gridsize.

For a test, I define a variable which is always one and print the values of the integration over y=0:ylim, where ylim = 0, 0.5, 1, 1.5, . . . .

set data coads_climatology  ! grid spacing is 2°
let _ones_ = 1 + 0*y[gy=SST]
repeat/range=0:8/name=yy (let val = ones[y=0:`yy/2`@DIN]; say `val`)

I find that the value of the integral is constant when ylim <= dely and then it starts to linearly grow after that.

Perhaps this isn't intended?

Best regards,

Ryo

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