[Bldg-sim] Weather file for remote location

[Joe Huang]

My recommendation is to use actual recorded weather data whenever possible.  Even if the 
recorded data is not at the desired site, that would be preferred to reanalysis data if 
the recorded data are within 1 degree latitude and longitude.  Why?  Because reanalysis 
data, which is what Weather Analytics provides (or used to provide, as the case may be),  
are computer generated weather data running  a Climate Forecasting Model in retrospective 
mode* that has a 1/2 degree grid. In other words, leaving aside the question how well do 
reanalysis data match measured data (and the samples I've seen can be all over the 
map...), even if the match is perfect there's still the uncertainty of a grid value versus 
a site-specific value.

Looking through the measured weather data available to me, there is a station in Tororo 
(UGA_TORORO_636840) located 43 kilometers directly south of Mbale that has 10 years of 
recorded data (2005-2012, 2016-17 ). Data in some of the years are shaky, but there's 
enough to make a decent "typical year" weather file. Since I now also have 
satellite-derived solar for all of Africa Feb. 2004 to date, that eliminates solar 
radiation as the biggest technical concern about weather files.  This means the resultant 
weather file for Tororo will be quite reliable, with no need to interpolate from other 
stations or rely on reanalysis data.

Please e-mail me for more details.

Joe

Joe Huang
White Box Technologies, Inc.
346 Rheem Blvd., Suite 205A
Moraga CA 94556
yjhuang at whiteboxtechnologies.com
http://weather.whiteboxtechnologies.com for simulation-ready weather data
(o) (925)388-0265
(c) (510)928-2683
"building energy simulations at your fingertips"

On 4/9/2018 12:55 PM, Mili Kyropoulou via Bldg-sim wrote:
>
> Hi Everyone,
>
> I am trying to find a weather file for Mbale Uganda and was wondering what the best 
> approach would be.
>
> I know that Meteonorm can provide me with a weather file that will be an interpolation 
> of 6 locations. Specifically, /"Meteonorm interpolates radiation with help of satellite 
> data (DWD CMSAF for this region) and temperature and other parameters with help of 
> ground measurements. In case of Mbale it uses : KISUMU (145 km), Eldoret (137 km), 
> NAKURU (260 km), Meru (402 km), Nairobi/Jomo Kenyatt (404 km), Garissa (630 km)"/
> /
> /
> I also see that IES, that uses Weather Analytics, can provide data for virtually any 
> location, but they are not saying - or I didn't find - how they calculate them.
>
> What would you recommend as the best approach to that?
>
>
> I appreciate your input
>
>
> thanks
>
> Mili Kyropoulou
>
>
>
>
>
>
> _______________________________________________
> Bldg-sim mailing list
> http://lists.onebuilding.org/listinfo.cgi/bldg-sim-onebuilding.org
> To unsubscribe from this mailing list send  a blank message to BLDG-SIM-UNSUBSCRIBE at ONEBUILDING.ORG

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/bldg-sim-onebuilding.org/attachments/20180409/a8fc1639/attachment-0002.html>