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 Post subject: HadGEM2-ES RCP 4.5
PostPosted: Fri Jun 23, 2017 3:29 pm 
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Joined: Mon Apr 25, 2016 11:55 am
Posts: 19
Hi,

I have ran and analyse a simulation under HadGEM2-ES RCP 4.5. For mean annual maximum temperature (2070-2099) trend, it shows a negative trend. Is there an explanation to this? I am confident that it was suppose to have a positive trend. As for the mean annual for the mean temperature as well as the minimum temperature have shown a positive trend. Looking forward for a reply. Thank you.

Khairul


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 Post subject: Re: HadGEM2-ES RCP 4.5
PostPosted: Sat Jun 24, 2017 2:28 am 
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Joined: Mon Apr 25, 2016 11:55 am
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Here is the file for further detail.


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d.nc.tar.gz [53.16 KiB]
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 Post subject: Re: HadGEM2-ES RCP 4.5
PostPosted: Thu Jun 29, 2017 3:42 pm 
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Joined: Tue Jun 07, 2016 10:18 am
Posts: 8
Hi Khairul

Apologies for the slow reply. Many of us in the team have been on holiday so we are a bit behind at keeping up with the forum.

Someone will be in touch as soon as possible to help with this.

Best wishes
Laura


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 Post subject: Re: HadGEM2-ES RCP 4.5
PostPosted: Mon Jul 03, 2017 1:49 am 
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Joined: Mon Apr 25, 2016 11:55 am
Posts: 19
Thank you for your reply. Looking forward for your feedback.

Khairul


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 Post subject: Re: HadGEM2-ES RCP 4.5
PostPosted: Mon Jul 03, 2017 10:32 am 
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Joined: Tue Jun 07, 2016 10:18 am
Posts: 8
Hi Khairul
I agree it sounds a bit strange if the minimum and mean temperatures show an increase. What data exactly did you plot? The file you sent is for an area, so did you look at the time series for the area average or for a particular grid point?
Can you possibly send me the files for min and mean temperatures too? I would like to plot them all and have a look at the data.
Have you plotted the data from the model used as boundary conditions. What trends does this show?
Thanks
Laura


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 Post subject: Re: HadGEM2-ES RCP 4.5
PostPosted: Tue Jul 04, 2017 2:20 am 
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Joined: Mon Apr 25, 2016 11:55 am
Posts: 19
Here are the files. Particular region of interest is only Brunei Darussalam (a small country) located on the Northern part of Borneo island, so I ran the simulation only for the upper northern part of Borneo and for the data I have only calculated area average time series for Brunei Darussalam region. The trend for mean and minimum shows positive trend.


Khairul.


Attachments:
maximum.tar.gz [73.49 KiB]
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minimum.tar.gz [51.22 KiB]
Downloaded 3 times
mean.tar.gz [50.74 KiB]
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Last edited by Khairul on Tue Jul 04, 2017 6:07 am, edited 2 times in total.
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 Post subject: Re: HadGEM2-ES RCP 4.5
PostPosted: Tue Jul 04, 2017 2:27 am 
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Joined: Mon Apr 25, 2016 11:55 am
Posts: 19
Note: All other data which includes RCP 8.5 2021-2051 2070-2099 mean, minimum and maximum shows positive trends.


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 Post subject: Re: HadGEM2-ES RCP 4.5
PostPosted: Mon Jul 10, 2017 4:37 am 
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Joined: Mon Apr 25, 2016 11:55 am
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Is there any update to this topic? Thank you.


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 Post subject: Re: HadGEM2-ES RCP 4.5
PostPosted: Tue Jul 18, 2017 10:37 am 
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Joined: Tue Jun 07, 2016 10:18 am
Posts: 8
Hi Khairul

Very sorry for the slow reply!

I have plotted the min, mean and max data files that you sent. Please see the attached. They seem to compare quite well with each other, showing similar trends.

Does this look similar to when you plot the data? I have taken an average across the whole domain that you sent. (Also note for the maximum file the area you sent is slightly larger in the longitude direction)

I don't know the meteorology of Brunei but these don't look too strange to me for RCP4.5. Perhaps you'd expect to see stronger trends with RCP8.5?

The code I wrote is in Iris/Python and I'm happy to share it if it would help with your analysis?

Laura


Attachments:
timeseries_all.png
timeseries_all.png [ 118.23 KiB | Viewed 7 times ]
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