Here’s a graph of sea level change over 20,000 years, sorry no reference, but it looks sciency.
Ocean temperatures certainly hasn’t escaped my thinking, I’ve just been quiet about it until someone else thought of it. Glad to see the bestest Vice President this nation as ever seen in 25 years finally did. This is as good a bogie man as we’ve had since the asteroid scare a few decades ago, we’ll not see it coming …
What is the current average temperature of the oceans?
Here’s a map of NOAAs buoys, the site says about 1,200 total. That’s compared to around 2,000 land-based weather stations in the USA alone. I’d say it’s a fair guess that, world-wide, there’s well over 10,000 data points for air temperature and I think it fair to say 20,000 (and include the buoys, they measure air temperature as well). Whereas, it seems not all the buoys measure water temperature, but let’s assume they all do.
With the 20,000 or so air temperature data points, plus a comprehensive understanding of atmospheric circulation AND more than a few of these stations also releasing instrument packages into the atmospheric column to take reading up to the stratosphere … we can construct a computer model that “fills in” all the rest of the atmosphere. This is not difficult since the data is not changing at all, and we have days and weeks to let the computer run. This gives fairly accurate average temperatures as demonstrated the consistency of five different types of programming. The algorithm is the same and based on Naiver-Stokes.
Ocean temperature is not as easy. First, we only measure sea surface temperature (SST) in large volumes. These NOAA buoys only measure temperatures 60 cm below the surface. There’s no regular measuring of the temperatures down through the water column. Also, ocean circulation patterns are far from being well understood. The good news is that Naiver-Stokes still applies, but without input data, the output data is untrustworthy.
" … namely that rising ocean temperatures are a significant indicator of global warming."
They certainly could be, but right now they are not. NOAA is hard at work developing techniques and systems to do just this. However, we will have to await the results before any grand conclusion is drawn. This bogie man is sitting down there in the oceans hiding, and at four times the energy per degree (for a unit mass), there’s a fuck load of room to hide.
“If the thunder don’t get you, then the lightning will”