It weird being told not to post basic questions about melting physics in the melting season thread.
Strange to relate, but "The 2019 melting season" thread is the place to discuss events during the 2019 melting season.
Does that make sense, or not?
It makes sense to me that a thread related to current events be restricted to current events yes.
But the melting season thread is chock full of interpretation and forecasting and many other things other than a dutiful account of facts.
This season has had plenty of users sharing their opinion of what those events mean. Some of those opinions are wrong.
It was nice to see Neven step in today and disagree with some of the prevailing "wisdom" that the current situation is really bad.
There seems to be something amiss in the culture of that thread when the temperature required to melt ice is not always an important consideration.
I'm a person who is highly receptive to the gloomy possibilities of AGW. But I need to kick the tires and make sure I understand the fundamentals before I feel free to tell others they need to worry.
You and I have an unfinished question about the melting point of sea ice. You correctly pointed out that salt water freezes at -1.8C.
But sea ice isn't salt water. The salty brine is separated from the molecular lattice when sea water freezes. The substances that melts isn't the same substance that freezes.
If people are not referencing the melting point of ice in their ice forecast, then the thread is flawed.
My pointing that out is not a departure from the mission of the thread. It's an attempt to ground the analysis in a very basic fundamental principle.
There's an inherent limitation related to the availability of precise temperature and other information in what is essentially a wilderness. In the absence of that, there's a lot of noise and guesswork in that thread.