[Vision2020] Correction: Re: Realclimate.org/NSIDC: Record Early Ice Out Date, Low Arctic Sea Ice Extent April 2019

[Ted Moffett]

Some of the "ice out" locations discussed below might not technically be in
the "Arctic" (but close anyway), though this can be defined at least three
ways:
https://nsidc.org/cryosphere/arctic-meteorology/arctic.html
https://nsidc.org/sites/nsidc.org/files/images//arctic_map.gif

On Tue, Apr 30, 2019 at 1:58 AM Ted Moffett <starbliss at gmail.com> wrote:

> Winter outlook 2018-2019: How’d we do?
>
> https://www.climate.gov/news-features/blogs/enso/winter-outlook-2018-2019-how%E2%80%99d-we-do
>
> "...in February, the western half of the country was transported to the
> ice planet Hoth. A huge area across the Northern Plains stretching into the
> Pacific Northwest observed temperatures more than 11°F below average for
> the month.  February 2019
> <https://www.ncdc.noaa.gov/temp-and-precip/us-maps/1/201902?products%5b%5d=statewidetavgrank#us-maps-select> became
> the second-coldest February since 1895 in Montana and North Dakota, the
> third-coldest in South Dakota, and the fifth-coldest in Washington."
> ----------------------------
> Given the cold very snowy February 2019 the Palouse witnessed, as
> discussed above at climate.gov, it is rather incredible, though not
> really surprising, with the well established global warming trend of polar
> amplification, that the Arctic during Feb. and since has had warm
> temperatures and records for early ice out dates, and low total sea ice
> extent, as revealed by the credible sources below:
> Vision2020 Post: Ted Moffett
> -----------------------------
> Realclimate.org features an article from Goddard Institute for Space
> Studies director Gavin Schmidt, regarding the record "ice out" event in the
> Arctic this Spring 2019:
> Nenana Ice Classic 2019
>
> http://www.realclimate.org/index.php/archives/2019/04/nenana-ice-classic-2019/#comments
>
>
> "Perhaps unsurprisingly given the exceptional (relative) warmth
> <https://www.nytimes.com/interactive/2019/04/09/climate/alaska-abnormally-hot-march.html?smid=tw-share> in
> Alaska last month and in February, the record for the Nenana Ice Classic
> <http://nenanaakiceclassic.com/> was shattered this year.
>
> The previous official record was associated with the exceptional
> conditions
> <https://rmets.onlinelibrary.wiley.com/doi/pdf/10.1256/wea.248.04> in El
> Niño-affected winter of 1939-1940, when the ice went out on April 20th
> 1940. Though since 1940 was a leap year, that was actually a little later
> (relative to the vernal equinox) than the ice out date in 1998 (which
> wasn’t a leap year).
>
> Other records are also tumbling in the region, for instance the ice out
> data at Bethel, Alaska."
>
> --------------------------------
>
> NSIDC Arctic sea ice extent early April was tracking at a record low,
> though the March sea ice extent average was only the seventh lowest on
> record:
>
> https://nsidc.org/arcticseaicenews/
>
> "Arctic sea ice extent appears to have reached its maximum extent on March
> 13, marking the beginning of the sea ice melt season. Since the maximum,
> sea ice extent has been tracking at record low levels."
>
> ------------------
>
> "Arctic sea ice extent for March averaged 14.55 million square kilometers
> (5.62 million square miles), tying with 2011 for the seventh lowest extent
> in the 40-year satellite record."
>
> ------------------
>
> "These late-March sea ice extent losses in the Bering Sea accelerated
> the decline of total Arctic sea ice extent. By April 1, Arctic extent was
> at a record low for that date. "
>
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