[ncl-talk] Getting dates when a specific contour line is within a region

[Lyndz]

Hi Sir Dave,NCL-experts,

Thank you for your suggestion. I tried this but encountered a mismatch
error:

fatal:Argument type mismatch on argument (0) of (dim_sum_n) can not coerce




The printVarSummary() of *subset()* is as follows:


Variable: subset

Type: float

Total Size: 16120 bytes

            4030 values

Number of Dimensions: 3

Dimensions and sizes: [time | 31] x [lat | 10] x [lon | 13]

Coordinates:

            time: [1929912..1930632]

            lat: [2.5..25]

            lon: [100..130]


I uploaded the files hre (chi_mar_2020.nc):
https://www.dropbox.com/sh/t88oab9txej73u1/AAAkDCcsTC3_eHg8uBc0vhtda?dl=0

Any idea how to solve this?

Sincerely,

Lyndz
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