[ncl-talk] Need verification on NCL scripts for temperature anomalies and extraction at grid points

[Dennis Shea]

I am not sure about the following:
---
; computing the composite diurnal cycle of anomalies
T2mean=dim_avg_n_Wrap(T2_dc,0)    ; (nlat,nlon)
T2_dc_anom=T2_dc
T2_dc_anom=(/ T2_dc-conform(T2_dc,T2mean,(/1,2/)) /)
---
T2mean is the overall temporal mean at each grid point.
ie: a constant at each grid point

Subtracting this just shifts hourly values down.
----
Attached is a 'guess' at what the code should look like.

Cheers




On Mon, Dec 2, 2019 at 7:21 PM Kunal Dayal via ncl-talk <ncl-talk at ucar.edu>
wrote:

> Hi,
>
> I have written a script for plotting the monthly averaged diurnal 2 m
> temperature anomalies and the 2 m temperature extraction script at a
> specific location. I am using the scripts to plot and extract data from WRF
> files.
>
> The code is working for both scripts but the monthly averaged diurnal 2 m
> temperature anomalies do not reflect the same behavior when compared with
> the data extracted at grid points (latitude and longitude) of station
> locations that are located especially on the leeward side of a tropical
> island.
>
> I would really appreciate it if you can advise whether my temperature
> anomalies script and temperature extraction script using NCL are correct.
> See attached the scripts.
>
> I have also checked the locations of the stations on the leeward side and
> they are located on land.
>
> I would really appreciate your assistance and advice.
>
> Regards
> Kunal Kushal Dayal
>
> PhD Researcher - Wind Energy
> Department of Mechanical Engineering
> Faculty of Engineering
> The University of Auckland
> New Zealand.
> Email: kday202 at aucklanduni.ac.nz
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