| Antarctic Temperature Data [message #53760] |
Tue, 01 May 2007 12:01 |
David Fanning
Messages: 11724
Registered: August 2001
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Senior Member |
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Folks,
OK, since I seem to be on a roll today, how about this.
Here is a text file containing temperature data from
an automated Antarctica weather station that I wish to
plot. I got the data from here:
http://amrc.ssec.wisc.edu/~amrc/8911.txt
Here is what the first couple of columns in the file look like.
ARGOS ID Date Time T(C)
-------- ---- ---- ----
8911 2007118 5250 -38.4
8911 2007118 5250 -38.4
8911 2007118 5250 -38.4
8911 2007118 32311 -37.2
8911 2007118 50325 -38.5
8911 2007118 54332 -38.5
8911 2007118 54331 -38.5
8911 2007118 54332 -38.5
8911 2007118 54331 -38.5
8911 2007118 64340 -39.6
8911 2007118 83357 -39.2
8911 2007118 83356 -39.2
8911 2007118 83356 -39.2
8911 2007118 83357 -39.2
8911 2007118 83356 -39.2
8911 2007118 83356 -39.2
8911 2007118 92404 -39.2
8911 2007118 93406 -39.4
8911 2007118 93406 -39.4
8911 2007118 101411 -39.6
8911 2007118 101410 -39.6
8911 2007118 115425 -41.2
8911 2007118 122430 -41.4
The time values range from 5250 to 225603. They seem to increase
to the maximum, then fall again to the minimum when the day of
year changes, say from 118 to 119. Supposedly, these temperature
readings are suppose to happen every 10 minutes, but as you can
see from the first three readings above, sometimes that doesn't
happen, or something... (This is raw data, not processed, and
I am expecting surprises.)
But, what units do you suppose those time values are in?
I can't find anything so far on the web page listed above
to tell me, and they don't seem to correspond to seconds,
which is what I thought they probably were initially.
Has anyone worked with data like this?
Cheers,
David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")
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