[ncl-talk] Help Required

Wed Oct 25 22:23:16 MDT 2017

Hi

I repeat my question

For the script wrf_ensemble ....... has one problem that the time used for the first do loop (time loop) is only 24 hours. This means that it reads only the first 24 times from the WRF out file instead of the whole 696 times(29 days ) in the file. Can you kindly suggest that how the do loop can be modified to include the 24 hours for each day ?

For the script UHIWind2.ncl I am getting higher temperature difference during the afternoon time which is  against the diurnal plots that I have produced. This means there is some problem on how the difference of temperature is being averaged over 29 days for 24 hours. I will be really grateful if you can provide help.

Muhammad Omer Mughal
MSc BSc Mechanical Engineering
PhD  Research Scholar
Remote Sensing and Satellite Research Group
Department of Imaging and Applied Physics
Curtin University

Curtin University
Tel | +61 8 9266 7962
Fax | +61 8 9266 2377
Mobile | 0470 237 525

Email | m.mughal1 at postgrad.curtin.edu.au<mailto:m.lynch at curtin.edu.au>
Web | http://curtin.edu.au<http://curtin.edu.au/>

Curtin University is a trademark of Curtin University of Technology.
CRICOS Provider Code 00301J (WA), 02637B (NSW)

________________________________
From: Dennis Shea <shea at ucar.edu>
Sent: Thursday, 26 October 2017 9:48:54 AM
To: Muhammad Omer Mughal
Cc: Mary Haley; ncl-talk at ucar.edu
Subject: Re: [ncl-talk] Help Required

How big is the file???
-------------------
What does

%> ncdump -h ..
or, equivalently
%> ncl_filedump ...

show.

----
The divisional ftp server was 100% full. That has been fixed. Please retry.

On Wed, Oct 25, 2017 at 7:06 PM, Muhammad Omer Mughal <m.mughal1 at postgrad.curtin.edu.au<mailto:m.mughal1 at postgrad.curtin.edu.au>> wrote:

Hi

I tried to upload but the server provided time out every time.

Any how for the script wrf_ensemble ....... has one problem that the time used for the first do loop (time loop) is only 24 hours. This means that it reads only the first 24 times from the WRF out file instead of the whole 699 times(29 days ) in the file. Can you kindly suggest that how the do loop can be modified to include the 24 hours for each day ?

For the script UHIWind2.ncl I am getting higher temperature difference during the afternoon time which is  against the diurnal plots that I have produced. This means there is some problem on how the difference of temperature is being averaged over 29 days for 24 hours. I will be really grateful if you can provide help.

Muhammad Omer Mughal
MSc BSc Mechanical Engineering
PhD  Research Scholar
Remote Sensing and Satellite Research Group
Department of Imaging and Applied Physics
Curtin University

Curtin University
Tel | +61 8 9266 7962
Fax | +61 8 9266 2377
Mobile | 0470 237 525

Email | m.mughal1 at postgrad.curtin.edu.au<mailto:m.lynch at curtin.edu.au>
Web | http://curtin.edu.au<http://curtin.edu.au/>

Curtin University is a trademark of Curtin University of Technology.
CRICOS Provider Code 00301J (WA), 02637B (NSW)

________________________________
From: Mary Haley <haley at ucar.edu<mailto:haley at ucar.edu>>
Sent: Thursday, 26 October 2017 1:58:52 AM
To: Muhammad Omer Mughal
Cc: ncl-talk at ucar.edu<mailto:ncl-talk at ucar.edu>
Subject: Re: [ncl-talk] Help Required

Muhammad,

It's hard to debug these kind of scripts without being able to see your data.

Can you provide the two data files that are referenced in your script?  You can use our ftp:

http://www.ncl.ucar.edu/ftp_files.shtml

--Mary

On Mon, Oct 23, 2017 at 9:11 PM, Muhammad Omer Mughal <m.mughal1 at postgrad.curtin.edu.au<mailto:m.mughal1 at postgrad.curtin.edu.au>> wrote:

Dear NCL team

I am attaching two codes. The first code i.e. UHI_Wind2.ncl is run in conjunction with the attached batch script. The intension is to first obtain difference between the 2m temperature in the two files and then do an hourly average of this temperature difference for 29 days. There seems to be an issue since the difference should appear to be maximum during the night time. The wrfout files are in UTC and adding 8 hours for Singapore local time gives me the opposite result i.e the maximum difference is appearing during day time.

In the second code attached, I intend to do obtain the difference in temperature based on the land use. Here again I am having trouble with using ntimes since the plot appearing is inconsistent with the definition of UHI i.e a lowest values appearing during the noon time in the diurnal cycle.

I would be really grateful to seek help from the  NCL community

Muhammad Omer Mughal
MSc BSc Mechanical Engineering
PhD  Research Scholar
Remote Sensing and Satellite Research Group
Department of Imaging and Applied Physics
Curtin University

Curtin University
Tel | +61 8 9266 7962
Fax | +61 8 9266 2377
Mobile | 0470 237 525

Email | m.mughal1 at postgrad.curtin.edu.au<mailto:m.lynch at curtin.edu.au>
Web | http://curtin.edu.au<http://curtin.edu.au/>

Curtin University is a trademark of Curtin University of Technology.
CRICOS Provider Code 00301J (WA), 02637B (NSW)

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