How about some _good_ news from #NOAA?
A friend there tells me that all 5 #DeepArgo floats trapped (expectedly) beneath last year's #AntarcticSeaIce and expected to show up this month have done so.
The floats follow a protocol for this. When attempting to surface, if water temperature is too low then back off, descend and collect another profile, try again.
No data is lost but profile locations become harder to pin down. Bathymetry sometimes can help with this; how deep was bottom contact?
every now and then, I look at this graph, and think about how, for decades, from 1979 until the boreal fall, or austral spring, of 2016, antarctic sea ice just seemed to ignore global warming, showing no trend. Then, suddenly, as the end of 2016 and the southern hemisphere summer approached, *clunk* antarctic sea ice fell down, and did not get up.
graph by @ZLabe , from https://zacklabe.com/antarctic-sea-ice-extentconcentration/
Not all Antarctic sea ice is the same. And the finer details are what scientists need to know more about to understand its impact on the climate system Where sea ice is (and isn’t) Because of the vast area occupied by the ice, satellite measurements hold the key to large-scale monitoring. Since 1978 researchers have
What can one gigantic iceberg tell us? Quite a bit.
With Antartic sea ice maximum extent at record low and the general recent trend in ASI, this #OpenAccess paper on knock-on effects of celebrated berg 68-A leads to "hmmm."
https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2023GL104588?af=R
A perfect storm? Scientists ponder if #climate has entered a new erratic era
#RisingSurfaceTemperatures in the north #Atlantic exacerbated by #ElNiño and a drop in #AntarcticSeaIce are prompting fears for #ecosystems
https://www.theguardian.com/environment/2023/jul/03/a-perfect-storm-scientists-ponder-if-climate-has-entered-a-new-erratic-era #ClimateCrisis #Environment #SeaTempratures
Doug Bostrom
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