Search found 13 matches

by dolphintickler
Tue Oct 04, 2016 2:03 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1732: "Earth Temperature Timeline"
Replies: 540
Views: 130854

Re: 1732: "Earth Temperature Timeline"

If you work on your stove, quit. And I don't think you cook. The number on the knob is a referent to the temperature at the sensor. Which can be fairly accurate. The variation of temperature in the stove comes other factors. The knob marker is the set point at which the gas valve cycles on and off....
by dolphintickler
Thu Sep 29, 2016 1:24 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1732: "Earth Temperature Timeline"
Replies: 540
Views: 130854

Re: 1732: "Earth Temperature Timeline"

I am perfectly capable of using Wikipedia, as I must assume you are not, since "global surface temperature" redirects to "temperature record" which discusses a variety of measurement records without defining a term "global surface temperature" nor suggesting that it is...
by dolphintickler
Mon Sep 26, 2016 1:34 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1732: "Earth Temperature Timeline"
Replies: 540
Views: 130854

Re: 1732: "Earth Temperature Timeline"

"Surface temperature" is the temperature at the surface. So if you stick a thermometer a millimeter into ground or water, you are measuring the surface temperature. That might be your definition of the surface temperature, but it's certainly not one related to meteorology. I would expect ...
by dolphintickler
Mon Sep 26, 2016 1:14 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1732: "Earth Temperature Timeline"
Replies: 540
Views: 130854

Re: 1732: "Earth Temperature Timeline"

Had Dolphitickler cared he could have used the search function here since this subject has been covered ad naseum in other threads. However I'm bored so here is a link to the GISS Surface Temperature Analysis (GISTEMP) page at the Goddard Institute for Space Studies which goes into some detail as t...
by dolphintickler
Mon Sep 26, 2016 12:36 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1732: "Earth Temperature Timeline"
Replies: 540
Views: 130854

Re: 1732: "Earth Temperature Timeline"

both of these refer to "global surface temperature" and do not explicitly state what that means I imagine they didn't explicitly state what a degree means, either. Is that also a problem or are you capable of using Wikipedia? If there were any significant chance of them using Fahrenheit, ...
by dolphintickler
Wed Sep 21, 2016 1:34 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1732: "Earth Temperature Timeline"
Replies: 540
Views: 130854

Re: 1732: "Earth Temperature Timeline"

There are sources on the graph. You can find out what they're taking the average of by checking yourself. I assume you mean where it says "Reconstructions are from Shakun (2012), and Marcott (2015)...". Assuming this means Global warming preceded by increasing carbon dioxide concentration...
by dolphintickler
Wed Sep 21, 2016 1:06 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1732: "Earth Temperature Timeline"
Replies: 540
Views: 130854

Re: 1732: "Earth Temperature Timeline"

bob443@mahaska.org wrote:Little bit of a correction for you here;earth_timeline.jpg


Someone might have taken you seriously if only you hadn't claimed that +8°C was "double the temepratures (sic) of modern times".
by dolphintickler
Wed Sep 21, 2016 1:01 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1732: "Earth Temperature Timeline"
Replies: 540
Views: 130854

Re: 1732: "Earth Temperature Timeline"

Soupspoon wrote:
dolphintickler wrote:Don't tell me what I need. If I'm curious about the Earth's average temperature, that alone creates a need to know it.
Given the ambiguous capitalisation, it may be that you'd actually be more correct to ask about the pedosphere, however...


Good point. And that would also be interesting.
by dolphintickler
Wed Sep 21, 2016 12:59 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1732: "Earth Temperature Timeline"
Replies: 540
Views: 130854

Re: 1732: "Earth Temperature Timeline"

Citation needed. Where does net metering require a utility company to buy at retail? Not where I live (Massachusetts) or any place I know of. That is the definition of "net metering". See the Wikipedia article with that title. When the utility is required to buy at a price above retail, i...
by dolphintickler
Wed Sep 21, 2016 12:47 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1732: "Earth Temperature Timeline"
Replies: 540
Views: 130854

Re: 1732: "Earth Temperature Timeline"

I am referring to the Earth's average temperature - not that of the Earth's atmosphere or some subset of it. The graph relies on a temperature accurate to at least 5°C - if you know the Earth's temperature for today to that accurace I'd be fascinated to learn it. Once again I emphasize that this is...
by dolphintickler
Sun Sep 18, 2016 11:45 pm UTC
Forum: Individual XKCD Comic Threads
Topic: 1732: "Earth Temperature Timeline"
Replies: 540
Views: 130854

Re: 1732: "Earth Temperature Timeline"

there's no way we could know it to the precision needed to produce a graph of it over the timescales used here. Except for e.g. _yearly_ growth rate of trees for the past 13 500 years. Sediments, Stalactites and Oxygen isotopes do help, too. We can also measure the strength of the sun by the amount...
by dolphintickler
Sat Sep 17, 2016 1:30 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1732: "Earth Temperature Timeline"
Replies: 540
Views: 130854

Re: 1732: "Earth Temperature Timeline"

I'm amazed that a person so expert at physics could produce a graph whose values are so far off those described by its title. Do you mean "values" more as in recorded results or relative philosophy? And there are a number of different bits of text that can be considered the "title&qu...
by dolphintickler
Fri Sep 16, 2016 12:19 am UTC
Forum: Individual XKCD Comic Threads
Topic: 1732: "Earth Temperature Timeline"
Replies: 540
Views: 130854

Re: 1732: "Earth Temperature Timeline"

I'm amazed that a person so expert at physics could produce a graph whose values are so far off those described by its title.

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