The clock on the watchtower was stopped at 13:18 on 1st May 2018 by the river ice moving.
the following plots show 3 versions of the same data. The Time from vernal equinox is probably most significant as this relates to solar position and not artificial human time.
Information here .
Going
Showing posts with label Alaska. Show all posts
Showing posts with label Alaska. Show all posts
2018/05/02
2017/05/05
Nenana Ice Classic is over for 2017
The Nenana Ice classic is a non-profit corporation formed
by the residents of Nenana, Alaska, for the purpose of
conducting an annual ice pool contest under special
statutory authority enacted the first state legislature in 1960.
The Association was incorporated by the State of Alaska in
December 1972. Previously it had operated as an
unincorporated association.
The idea is to guess the exact time of the ice break-up on the nenana river
This contest has been running since 1917 and consequently gives an idea of thermal conditions on the river over time. Unless dynamite is used(!) the time of breakup is difficult to contest and calling "Fraud" even more contentious.
Three plots are given 2 timed from the start of the year and one from the vernal equinox (the latter uses a fixed point in solar time).
Looks like the break up occurred at a time predicted by the slope of the average
The idea is to guess the exact time of the ice break-up on the nenana river
This contest has been running since 1917 and consequently gives an idea of thermal conditions on the river over time. Unless dynamite is used(!) the time of breakup is difficult to contest and calling "Fraud" even more contentious.
Three plots are given 2 timed from the start of the year and one from the vernal equinox (the latter uses a fixed point in solar time).
Looks like the break up occurred at a time predicted by the slope of the average
Labels:
Alaska,
ice breakup,
Nenana,
Tanana
2016/04/25
Nenana Ice Break Up Occurred 2016-04-24 15:39:00
The Annual Nenana Ice Classic is Over for Another Year
this one timed from vernal equinox
The Tanana River officially broke up on 2016-04-24 at 15:39:00
http://www.nenanaakiceclassic.com/
2 plots as usual
one timed from start of year
2 plots as usual
one timed from start of year
this one timed from vernal equinox
Labels:
Alaska,
ice breakup,
ice classic,
Nenana,
Tanana
2015/04/25
The Annual Nenana Ice Classic is Over for Another Year
After an initial movement 2 days ago an ice-jam prevented full movement of the tripod and the clock was not stopped. However, the Tanana River officially broke up on April 24th at 2:25 P.M. Alaska Standard Time.
http://www.nenanaakiceclassic.com/
Tripod moved but not moving
Not free of ice but no more tripod:
So how does this extended date fit in with previous data.
2 plots
one timed from start of year
this one timed from vernal equinox
Seems to be following a declining period with a few early peaks
http://www.nenanaakiceclassic.com/
Tripod moved but not moving
Not free of ice but no more tripod:
So how does this extended date fit in with previous data.
2 plots
one timed from start of year
this one timed from vernal equinox
Seems to be following a declining period with a few early peaks
Labels:
Alaska,
ice breakup,
ice classic,
Nenana,
Tanana
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