<div>If the gaps are more than a day, I don't think that NREL fills it (near real-time weather data providers). You can get data from NCDC as well: <a href="http://www.ncdc.noaa.gov" target="_blank">www.ncdc.noaa.gov</a> . When I just checked for MSP, they have data up until early August 2011. As far as the number of hours available in each month, they show:</div>
<div> </div><div><pre>726580 14922 MINNEAPOLIS/ST.PAUL 2009 1055 957 1053 997 925 990 963 1052 903 1262 944 1198
726580 14922 MINNEAPOLIS/ST.PAUL 2010 1098 1047 1027 897 998 1074 1003 983 1008 957 1065 1224
726580 14922 MINNEAPOLIS/ST.PAUL 2011 1270 1044 1213 1144 1067 1111 1097 330 0 0 0 0
Total Surface Hourly Observations Available: 32956
Total Station-Years: 3
</pre></div><div><br>Yes, there are missing data but I don't see anything as long as you're talking about. When I requested this data, NCDC put a price of $40 on it. The specific data set is: DS3505 - Surface Data, Hourly Global.</div>
<div> </div><div> </div><div> </div><div> </div><div><br> </div><div class="gmail_quote">On Fri, Aug 12, 2011 at 1:10 PM, David Bryan <span dir="ltr"><<a href="mailto:Third-Level@comcast.net" target="_blank">Third-Level@comcast.net</a>></span> wrote:<br>
<blockquote style="margin: 0px 0px 0px 0.8ex; padding-left: 1ex; border-left-color: rgb(204, 204, 204); border-left-width: 1px; border-left-style: solid;" class="gmail_quote"><u></u>
<div bgcolor="#ffffff" text="#000000">
Dear Sim List:<br>
<br>
I'm attempting to calibrate an EnergyPlus / DesignBuilder model for
an existing building using actual weather data.<br>
<br>
I've downloaded data from the EnergyPlus website at:<br>
<a href="http://apps1.eere.energy.gov/buildings/energyplus/weatherdata_request_options.cfm" target="_blank">http://apps1.eere.energy.gov/buildings/energyplus/weatherdata_request_options.cfm</a><br>
for the three weather stations in the Minneapolis / St Paul area for
2009 and 2010.<br>
<br>
When I examine this data, there are about 70 days of data missing
for 2009 and about 20 days of data missing for 2010. <br>
I have checked the option to "fill in missing time steps'; evidently
these gaps are each too wide to be bridged with estimated data.<br>
Even worse, the holes are virtually identical for all three weather
stations in the Twin Cities area so that I don't have the option of
creating a synthetic year from actual data from local stations.<br>
EnergyPlus Support suggest that the weather stations may have been
"taken down for maintenance". It seems to me that taking down all
the stations in a given area simultaneously is exactly what one
wouldn't want to do.<br>
<br>
Can anyone shed any light on this ? Any ideas for other sources of
hourly TMY2 or TMY3 data for this area ?<br>
<br>
Thanks,<br>
Dave<br>
<br>
<div>-- <br>
<div>
<p class="MsoNormal"><span style="font-family: Arial;">Dave
Bryan, </span><span style="font-family: Arial; font-size: 9pt;">AIA, LEED AP</span></p>
<p class="MsoNormal"><span style="font-family: Arial;">Third
Level Design</span></p>
<p class="MsoNormal"><span style="font-family: Arial;">2512
Euclid Place</span></p>
<p class="MsoNormal"><span style="font-family: Arial;">Minneapolis</span><span style="font-family: Arial;">, MN 55405</span></p>
<p class="MsoNormal"><span style="font-family: Arial;"> </span></p>
<p class="MsoNormal"><span style="font-family: Arial;"><a href="mailto:Third-Level@comcast.net" target="_blank">Third-Level@comcast.net</a></span></p>
<p class="MsoNormal"><span style="font-family: Arial;"><a href="tel:612-374-3280" target="_blank" value="+16123743280">612-374-3280</a>
phone</span></p>
<p class="MsoNormal"><span style="font-family: Arial;"><a href="tel:612-374-3280" target="_blank" value="+16123743280">612-374-3280</a>
fax</span></p>
<p class="MsoNormal"><span style="font-family: Arial;"><a href="tel:612-868-0814" target="_blank" value="+16128680814">612-868-0814</a>
cell</span></p>
<p class="MsoNormal"><span style="font-family: Arial;"> </span></p>
<p class="MsoNormal"><i><span style="color: rgb(0, 102, 0); font-family: Arial;">Please
consider the environment before reproducing</span></i></p>
<p class="MsoNormal"><span style="color: rgb(0, 102, 0); font-family: Arial;"> </span></p>
<p class="MsoNormal"> </p>
</div>
</div>
</div>
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