Friday, October 26, 2007

To illustrate how deceptive heat transfer is from a state of solid ice to one of sublimination of that ice, the temperatures across ...


October 26, 2007
0600 am
Antarctica


...the continent are freezing. The peninsula continues to be the warmest at a lower elevation/altitude/sea level actually, and the highest point of the ice the coldest.

This is an extreme environment and due to the severity of the cold there exists the ability to 'remain the same while absorbing damage. Over time there is visible loss of ice although the reality is such that the actual temperatures never 'seem' to reflect that. That is the 'property' of the latent heat of water that changes the state of water from ice to vapor. The ice in Antarctica rarely converts to water and runs off the continent, it receives heat from the equator and other latitudes and 'sublimes' into it's gaseous state.

Before the massive shift in cold air to counter the arrival of the heat transfer over East Antarctica, the peninsula was above freezing.

The warmest reporting stations in Antarctica:


Palmer Station, Antarctica

Time :: 3:00 AM CLST

Elevation :: 26 ft / 8 m

Temperature :: 27 °F / -3 °C

Conditions :: Light Snow

Humidity :: 67%

Dew Point :: 20 °F / -6 °C

Wind :: 34 mph / 54 km/h from the NNE Wind Gust :: -

Pressure :: 28.89 in / 978 hPa (Rising)

Visibility :: 10.0 miles / 16.0 kilometers

Aviation
Flight Rule:
VFR ()
Wind Speed :: 34 mph / 54 km/h /
Wind Dir :: 30° (NNE)
Ceiling :: 100000 ft / 100000 m



Vernadsky, Antarctica

Time :: 9:00 AM GMT

Elevation :: 36 ft / 11 m

Temperature :: 27 °F / -3 °C

Conditions :: Partly Cloudy

Humidity :: 68%

Dew Point :: 21 °F / -6 °C

Wind :: 15 mph / 24 km/h from the NE

Wind Gust :: -

Pressure :: 28.90 in / 979 hPa (Rising)

Visibility :: 12.0 miles / 20.0 kilometers

Aviation
Flight Rule:
VFR ()
Wind Speed :: 15 mph / 24 km/h /
Wind Dir :: 50° (NE)
Ceiling :: 100000 ft / 100000 m

The coldest reporting stations are :


Vostok, Antarctica

12:00 PM VOST

Elevation :: 11220 ft / 3420 m

Temperature :: -61 °F / -52 °C

Humidity :: 42%

Dew Point :: -68 °F / -56 °C

Wind :: 9 mph / 15 km/h from the West

Wind Gust :: -

Pressure :: in / hPa (Rising)

Visibility :: 12.0 miles / 20.0 kilometers

Aviation
Flight Rule:
VFR ()
Wind Speed:
9 mph / 15 km/h /

Wind Dir:
280° (West)
Ceiling:
100000 ft / 100000 m


Siple Dome, AA

9:50 PM NZDT

Temperature :: -15 °F / -26 °C

Wind :: Calm

Wind Gust :: -

Pressure :: 28.79 in / 975 hPa

Aviation
Flight Rule :: NA
Wind Speed :: 0 mph / 0 km/h /

Wind Dir :: N/A

Ceiling :: -


Amundsen-Scott South Pole Station, Antarctica

Time :: 9:50 PM NZDT

Elevation :: 9285 ft / 2830 m

Temperature :: -59 °F / -50 °C

Conditions :: Snow

Wind :: 15 mph / 24 km/h from the ESE

Wind Gust :: -

Pressure :: in / hPa (Falling)

Visibility :: 7.0 miles / 11.0 kilometers

Clouds :: Few 7874 ft / 2400 m
(Above Ground Level)
Aviation
Flight Rule :: VFR ()
Wind Speed :: 15 mph / 24 km/h /
Wind Dir :: 120° (ESE)
Ceiling :: 100000 ft / 100000 m