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Actually, we take our readings at 10:00 PM, more or less. As long as
you're reasonably consistent, the actual time doesn't matter unless you
are trying to compare readings with other sites.
Shearwater's climate will be quite different from ours: they are right
on the coast and we are inland, between Dartmouth and the Halifax
International Airport. Environment Canada says that the "average"
temperatures at YHZ for Feb. 14 are -1.3 and -10.4. They also say that
the "Normals" are 0 and -9. Somewhat confusing.
Ours are -1.3 and -12.0 for this date.
TMI follows: For those interested in how we process the data, for each
day's max and min we select the median of the 16 yearly readings, and
then use linear exponential smoothing to get rid of the worst of the
noise. The daily "average" is just the mean of the two smoothed values.
--- Peter
On 2019-02-14 11:35 AM, Keith Lowe wrote:
>
> You must take the temperature in the early morning. Environment Canada
> says the average temps for Shearwater on Feb 14 are a high of -0.4 and
> a low of -9
>
> *From:*naturens-owner@chebucto.ns.ca <naturens-owner@chebucto.ns.ca>
> *On Behalf Of *Peter Payzant
> *Sent:* Thursday, February 14, 2019 11:14 AM
> *To:* naturens@chebucto.ns.ca
> *Subject:* Re: [NatureNS] The depths of winter
>
> Hi, David-
>
> We use a digital thermometer. The sensor is in a shield, and we check
> the calibration from time to time against a surplus Environment Canada
> mercury thermometer. We were given that when EC went to Celsius, so
> it's graduated in deg. F., but we can handle the math ;)
>
> --- Peter
>
>
> On 2019-02-14 10:16 AM, David Simpson wrote:
>
> Cool! Do you use analog (er, liquid) max/min thermometers or digital?
>
> David
>
> On Thu, Feb 14, 2019, 10:01 AM Marg Millard, <mmillard@eastlink.ca
> <mailto:mmillard@eastlink.ca>> wrote:
>
> thank you for sharing that, Peter.
>
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Actually, we take our readings at 10:00 PM, more or less. As long as
you're reasonably consistent, the actual time doesn't matter unless
you are trying to compare readings with other sites.<br>
<br>
Shearwater's climate will be quite different from ours: they are
right on the coast and we are inland, between Dartmouth and the
Halifax International Airport. Environment Canada says that the
"average" temperatures at YHZ for Feb. 14 are -1.3 and -10.4. They
also say that the "Normals" are 0 and -9. Somewhat confusing.<br>
<br>
Ours are -1.3 and -12.0 for this date.<br>
<br>
TMI follows: For those interested in how we process the data, for
each day's max and min we select the median of the 16 yearly
readings, and then use linear exponential smoothing to get rid of
the worst of the noise. The daily "average" is just the mean of the
two smoothed values.<br>
<br>
--- Peter<br>
<br>
<div class="moz-cite-prefix">On 2019-02-14 11:35 AM, Keith Lowe
wrote:<br>
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<p class="MsoNormal"><span
style="color:windowtext;mso-fareast-language:EN-US">You must
take the temperature in the early morning. Environment
Canada says the average temps for Shearwater on Feb 14 are a
high of -0.4 and a low of -9<o:p></o:p></span></p>
<p class="MsoNormal"><span
style="color:windowtext;mso-fareast-language:EN-US"><o:p> </o:p></span></p>
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<div style="border:none;border-top:solid #E1E1E1
1.0pt;padding:3.0pt 0in 0in 0in">
<p class="MsoNormal"><b><span style="color:windowtext"
lang="EN-US">From:</span></b><span
style="color:windowtext" lang="EN-US">
naturens-owner@chebucto.ns.ca
<naturens-owner@chebucto.ns.ca>
<b>On Behalf Of </b>Peter Payzant<br>
<b>Sent:</b> Thursday, February 14, 2019 11:14 AM<br>
<b>To:</b> naturens@chebucto.ns.ca<br>
<b>Subject:</b> Re: [NatureNS] The depths of winter<o:p></o:p></span></p>
</div>
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<p class="MsoNormal"><o:p> </o:p></p>
<p c