Antarctic Sea Ice Area Second Highest On Record For The Date

Climate experts tell us that the polar ice caps are melting at alarming rates.

ScreenHunter_95 Jul. 14 09.35

arctic.atmos.uiuc.edu/cryosphere/timeseries.south.anom.1979-2008

About stevengoddard

Just having fun
This entry was posted in Uncategorized. Bookmark the permalink.

5 Responses to Antarctic Sea Ice Area Second Highest On Record For The Date

  1. greg bacon says:

    Since the start of the satellite record, total Antarctic sea ice has increased by about 1 percent per decade. Whether the small increase in extent is a sign of meaningful change is uncertain because ice extents vary considerably from year to year around Antarctica. In September 2012, for instance, satellites observed a new record high for winter sea ice extent; it remained high (but not a record) at the summer peak in February 2012. These new highs occurred while the Arctic was seeing record lows.

    http://earthobservatory.nasa.gov/Features/WorldOfChange/sea_ice_south.php

    • Global sea ice area is above normal. A real polar meltdown!

    • Jimbo says:

      It’s unprecedented greg, let’s raise the alarm – again.

      Abstract
      The Early Twentieth-Century Warming in the Arctic—A Possible Mechanism

      The huge warming of the Arctic that started in the early 1920s and lasted for almost two decades is one of the most spectacular climate events of the twentieth century. During the peak period 1930–40, the annually averaged temperature anomaly for the area 60°–90°N amounted to some 1.7°C…..
      dx.doi.org/10.1175/1520-0442(2004)017%3C4045:TETWIT%3E2.0.CO;2

      Abstract
      The regime shift of the 1920s and 1930s in the North Atlantic

      During the 1920s and 1930s, there was a dramatic warming of the northern North Atlantic Ocean. Warmer-than-normal sea temperatures, reduced sea ice conditions and enhanced Atlantic inflow in northern regions continued through to the 1950s and 1960s, with the timing of the decline to colder temperatures varying with location. Ecosystem changes associated with the warm period included a general northward movement of fish……
      dx.doi.org/10.1016/j.pocean.2006.02.011

      Monthly Weather Review October 10, 1922.
      The Arctic seems to be warming up. Reports from fishermen, seal hunters, and explores who sail the seas about Spitsbergen and the eastern Arctic, all point to a radical change in climatic conditions, and hitherto unheard-of high temperatures in that part of the earth’s surface….

      In August, 1922, the Norwegian Department of Commerce sent an expedition to Spitsbergen and Bear Island under Dr. Adolf Hoel, lecturer on geology at the University of Christiania. The oceanographic observations (reported that) Ice conditions were exceptional. In fact, so little ice has never before been noted. The expedition all but established a record, sailing as far north as 81o 29′ in ice-free water. This is the farthest north ever reached with modern oceanographic apparatus…..”
      docs.lib.noaa.gov/rescue/mwr/050/mwr-050-11-0589a.pdf

      H.H. Lamb1965
      The early medieval warm epoch and its sequel

      The Arctic pack ice was so much less extensive than in recent times that appearances of drift ice near Iceland and Greenland south of 70[deg] N, were apparently rare in the 10th century and unknown between 1020 and 1194, when a rapid increase of frequency caused a permanent change of shipping routes. Brooks suggested that the Arctic Ocean became ice-free in the summers of this epoch, as in the Climatic Optimum; but it seems more probable that there was some ‘permanent’ ice, limited to areas north of 80[deg] N….”
      Elsevier Publishing Company
      Palaeogeography, Palaeoclimatology, Palaeoecology, 1:1965, p. 15-16

      Abstract
      The 15th century Arctic warming in coupled model simulations with data assimilation

      … Available observational data, proxy-based reconstructions and our model results suggest that the Arctic climate is characterized by substantial variations in surface temperature over the past millennium. Though the most recent decades are likely to be the warmest of the past millennium, we find evidence for substantial past warming episodes in the Arctic. In particular, our model reconstructions show a prominent warm event during the period 1470–1520. This warm period is likely related to the internal variability of the climate system,….
      doi:10.5194/cp-5-389-2009

  2. Eric says:

    Steven, I read somewhere that sea ice extent minimum threshold used to be 10% but was recently increased to 15%. Is that correct? If that happened, doesn’t that skew things just a bit?

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s