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Topics - Aluminium

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Arctic sea ice / Arctic energy balance
« on: May 29, 2020, 12:11:17 PM »
Estimations of energy input/output. Many factors affect the ice. It's important to determine if the factor deserves attention. Often simple calculations can help understand the order of magnitude.

1 km3 of ice is equivalent to 3*1017 J or approximately 1 Tsar Bomba.

Warm air advection.
50 km^3 per day by WAA would be extremely serious, yes. If it'd happen... You sure you got the number right?
My assumptions: 1 km x 1000 km x 5 m/s of air, 1 kJ/ (kg * °C), 1.2 kg/m3, 10°C, 10 g/m3 of water vapor, 2.3 MJ/kg. I saw warmer and wetter events. Infrared radiation provides effective interaction between snow/ice surface and wet air mass.

River discharge.
200 000 m3/s of water with 10°C may melt 2.3 km3 of ice per day or 70 km3 per month. It may be significant with high efficiency. But it's not enough to determine strong melting season.

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Arctic sea ice / River ice and Discharge
« on: April 09, 2020, 02:10:19 PM »
River ice was mentioned several times and probably has some importance for the Arctic. Also it's beautiful.

For a start, the Abakan (the Yenisei basin).


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