Tuesday, April 3, 2012

3120.txt

date: Wed, 04 Nov 2009 12:22:48 +0000
from: Said Alsarmi <said.alsarmiatXYZxyz.ox.ac.uk>
subject: Re: Sohar (Oman) station minimum temperature shifts
to: Phil Jones <p.jonesatXYZxyz.ac.uk>

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Dear Professor Phil,

Thank you so much for your comments. These change points are not present in the maximum temperature series.
I agree with you that these are most likely natural shifts.

Regards
Said

Phil Jones wrote:
> Dear Said,
> I'd be very reluctant accepting these as change points unless you
> also see them in the maximum temperature series as well. Also if
> there is no evidence in the station history information, then it is
> also hard to accept them.
>
> Cheers
> Phil
>
>
> At 11:12 04/11/2009, you wrote:
>
>> Dear Professor Jones,
>>
>> I hope this will receive you in health and happiness. I need your
>> view in the attached pdf file which is an output of a homogeneity
>> test called RhtestV3(published online at
>> http://cccma.seos.uvic.ca/ETCCDMI/software.shtml). The test detected
>> 2 significant(at 95% confidence level) change points in 1986 and
>> 2004 for Sohar station (Oman), the data were monthly minimum
>> temperature for the period 1980-2008.
>> The ncep and era40 anomaly plots for the same climatology reference
>> period show that cold anomalous months with varied intensities
>> affected the station region while warming at the end of the
>> changepoints period.
>>
>> Please and if you do not mind could you comment on this station output?
>>
>> Said AlSarmi
>>
>>
>>
>> <http://cccma.seos.uvic.ca/ETCCDMI/software.shtml>
>>
>>
>>
>>
>>
>>
>>
>> Phil Jones wrote:
>>
>>> Dear Said Hamed,
>>> The only data we have is daily precipitation data for Masirah and
>>> Salalah.
>>> We digitized these in the UK - the data are in the Met Office archives,
>>> which are now in Exeter. The originals would have had the other
>>> variables, but at the time we were only interested in rainfall data.
>>> These data were taken at RAF airfields up to the mid-1970s.
>>> I'm attaching the files. I did send these to the authors of the paper
>>> you refer to.
>>>
>>> Best Regards
>>> Phil
>>>
>>>
>>> At 19:37 25/02/2009, you wrote:
>>>
>>>
>>>> Dear Professor Jones,
>>>>
>>>> My name is Said AlSarmi from Oman. I am a PhD student at Oxford University
>>>> aiming to do some work on Oman climate variability and change. If
>>>> you remember
>>>> I met you in Delhi (India) in GCOS workshop September 2005.
>>>>
>>>> I seek your help in providing actual observed data or metadata
>>>> related to Oman.
>>>> I understand that Climate extremes indices workshop in Turkey (October 2005)
>>>> had used daily data for 2 Omani stations from your department.
>>>>
>>>> Regards
>>>>
>>>> --
>>>> Said Hamed AlSarmi
>>>> DPhil Student
>>>> School of Geography and Environment
>>>> Oxford University
>>>>
>>>>
>>> Prof. Phil Jones
>>> Climatic Research Unit Telephone +44 (0) 1603 592090
>>> School of Environmental Sciences Fax +44 (0) 1603 507784
>>> University of East Anglia
>>> Norwich Email p.jonesatXYZxyz.ac.uk
>>> NR4 7TJ
>>> UK
>>> ----------------------------------------------------------------------------
>>> =
>>>
>>
>
> Prof. Phil Jones
> Climatic Research Unit Telephone +44 (0) 1603 592090
> School of Environmental Sciences Fax +44 (0) 1603 507784
> University of East Anglia
> Norwich Email p.jonesatXYZxyz.ac.uk
> NR4 7TJ
> UK
> ----------------------------------------------------------------------------
>
>
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