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That's why I don't change my readings to agree with the analysis. My
station(s) are at 1400 ft and typically I get cold air settling ....
last night I matched the coldest readings in NY but I know my readings
are accurate since I calibrate my stations with thermometers (I have 2)
that are calibrated and accurate to within 0.1 degrees .... (cost $300
each) .... sometimes I'm 10-15 degrees colder than a mountaintop 3-4
miles away from me .... I can't believe microclimates !!!!<br>
<br>
Milford Weather wrote:
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<p class="MsoPlainText"><font color="blue" face="Comic Sans MS"
size="2"><span
style="font-size: 10pt; font-family: "Comic Sans MS"; color: blue;">I
have to agree
with Rich; the goal is to report accurate readings for <i><span
style="font-style: italic;">your</span></i> location. On calm nights
I frequently
get a temperature bump around 4am that I do not see on any other
station in my
area. I live on the side of a hill and attribute it to the cold air
settling
into the valley and forcing the warmer air upward. I have spent a
career
of engineering and calibration and maintain my station as accurately as
possible so the results are accurate and true. If that is done by each
of
us, the data will be a true representation of the conditions at our own
locations, which is what I see as the goal.<o:p></o:p></span></font></p>
<p class="MsoNormal" style="text-align: center;" align="center"><font
face="Times New Roman" size="3"><span style="font-size: 12pt;"><o:p> </o:p></span></font></p>
<p class="MsoNormal"><font color="blue" face="Comic Sans MS" size="2"><span
style="font-size: 10pt; font-family: "Comic Sans MS"; color: blue;">Paul</span></font><o:p></o:p></p>
<p class="MsoNormal"><font face="Times New Roman" size="3"><span
style="font-size: 12pt;"> <o:p></o:p></span></font></p>
<p class="MsoNormal"><font color="blue" face="Comic Sans MS" size="2"><span
style="font-size: 10pt; font-family: "Comic Sans MS"; color: blue;">CW3414</span></font><o:p></o:p></p>
<p class="MsoNormal"><font color="blue" face="Comic Sans MS" size="2"><span
style="font-size: 10pt; font-family: "Comic Sans MS"; color: blue;">Weather
Spotter</span></font><o:p></o:p></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;"><a href="http://www.pdfamily.com/weather/">http://www.PDfamily.com/weather</a></span><o:p></o:p></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;"><o:p> </o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;">The goal isn't to match the analysis readings
- the goal is to have <o:p></o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;">accurate data. :-)<o:p></o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;"><o:p> </o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;">You may very well be in a micro-climate in
which the humidity readings <o:p></o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;">are correct. In my case, for example, I'm in
a narrow stream valley,
and <o:p></o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;">my dewpoint readings are *always* flagged as
bad. Nonetheless, they're <o:p></o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;">also totally accurate, when I measure
independently using a precision <o:p></o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;">thermometer and sling psychrometer.<o:p></o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;"><o:p> </o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;">There seems to be a huge amount of concern on
the wx list about making <o:p></o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;">sure that stations agree with the analysis -
and that's simply the
wrong <o:p></o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;">approach. The analysis is, and will always
be, an approximation of <o:p></o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;">reality that doesn't necessarily derive
correct results for all <o:p></o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;">stations. There are just too many potential
variables that must be <o:p></o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;">accomodated. The analysis is useful to spot
trends and flag potential <o:p></o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;">problems - but just because it indicates that
your readings are bad <o:p></o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;">doesn't mean that they're bad. To determine
that, you need independent <o:p></o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;">confirmation of the values you generate.<o:p></o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;"><o:p> </o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;">- Rich<o:p></o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;"><o:p> </o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;"><o:p> </o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;"><o:p> </o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;">_______________________________________________<o:p></o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;">wxqc mailing list<o:p></o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;"><a class="moz-txt-link-abbreviated" href="mailto:wxqc@lists.gladstonefamily.net">wxqc@lists.gladstonefamily.net</a><o:p></o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;"><a class="moz-txt-link-freetext" href="http://pond1.gladstonefamily.net:8080/mailman/listinfo/wxqc">http://pond1.gladstonefamily.net:8080/mailman/listinfo/wxqc</a><o:p></o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;"><o:p> </o:p></span></font></p>
<p class="MsoPlainText"><font face="Courier New" size="2"><span
style="font-size: 10pt;">The contents of this message are the
responsibility of the author.<o:p></o:p></span></font></p>
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