the Arctic assume sea ice is approximately 2m thicker in winter than in summer. Melting sea ice requires approximately 3 ×10^5J/kg. How much heat in Jm^−2is required to melt 1m of sea ice? If all that heat is provided during the three month period June-August, what is the average summer heating rate of Arctic sea ice (in Wm^−2)? Remember a Watt is a Joule per second and also that the density of sea ice is approximately 1000 kgm^−3.

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In the Arctic assume sea ice is approximately 2m thicker in winter than in summer. Melting
sea ice requires approximately 3 ×10^5J/kg. How much heat in Jm^−2is required to melt 1m of sea ice?
If all that heat is provided during the three month period June-August, what is the average summer
heating rate of Arctic sea ice (in Wm^−2)? Remember a Watt is a Joule per second and also that the
density of sea ice is approximately 1000 kgm^−3.

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