Quote of the week: “crazy stuff in the Arctic”

The overly excitable director of that National Snow and Ice Data Center (NSIDC) is at it again. Previously, we’ve heard him declare “death spiral” and “the Arctic is screaming” to convey his alarmed viewpoint on Arctic Sea Ice. Now, he’s got a new one, courtesy of Seth Borenstein at The Associated Press: “It’s just crazy,…

Arctic sea ice expanding faster than normal

Ice grew at 5,100 square kilometers (2,000 square miles) per day faster than the average rate of ice growth for the month during October From the National Snow and Ice Data Center: Rapid expansion of the Arctic sea ice cover is the norm for October as solar input dwindles and the remaining heat in the…

Ugly: President Trump Accused of Obstructing Climate Research

Guest essay by Eric Worrall US and Overseas scientists have accused the Trump Administration of criminal obstruction of climate research, because the US government has not immediately stepped in to foot the bill for a replacement satellite. Donald Trump accused of obstructing satellite research into climate change Republican-controlled Congress ordered destruction of vital sea-ice probe…

Arctic Ice Natural Variability

By Javier A year ago I wrote an article at WUWT analyzing the recent upward trend in summer Arctic sea ice extent. Despite challenges of statistical irrelevancy, the trend has continued another year. Arctic ice experts, that have repeatedly predicted the demise of summer ice, don’t have an explanation for a 10-year trend that contradicts…

What do we know about Arctic sea ice trends?

A very significant post over at Dr. Curry’s blog ~ctm From Climate Etc. Posted on August 16, 2017 | by Dr. Ronan Connolly & Dr. Michael Connolly Satellite observations indicate that the average Arctic sea ice extent has generally decreased since the start of the satellite records in October 1978. Is this period long enough…

Major refresh to WUWT’s Sea Ice Reference page

One of WUWT’s most read reference pages has been the Sea Ice reference page. For over a year, it could be described with one word, dreadful. The many problems included: WordPress broke handling of non-SSL references to images to display. They seem to be downloading them into their own cache directory, but never update it.…

Sea ice hit record lows in November #weather

From the UNIVERSITY OF COLORADO AT BOULDER and the “one month does not a trend make” department, notice that there is still plenty of ice in the Arctic as shown in the image provided with the press release. It’s weather folks, but do remember this moment the next time we get a record high Arctic…

Inconvenient: Record Arctic Sea Ice Growth In September

History Keeps Proving Prophets Of Eco-Apocalypse Wrong Source data: ftp://sidads.colorado.edu/DATASETS/NOAA/G02135/north/daily/data/ Since hitting its earliest minimum extent since 1997, Arctic sea ice has been expanding at a phenomenal rate. Already it is greater than at the same date in 2007, 2008, 2010, 2011, 2012 and 2015. Put another way, it is the fourth highest extent in the…

Arctic ice – a historical viewpoint

Guest essay by Roger Graves The subject of the extent of Arctic ice cover has been much in the news, with an apparently unending series of attempts to predict its future extent on the basis of a relatively few years’ worth of data. However, it is possible to make some general predictions, based on a…

Discrepancy in NSIDC press release vs. data puts turning point for end of Arctic ice melt 3 days earlier

Yesterday, as covered by WUWT, NSIDC announced that Arctic sea ice melt had turned the corner on September 10th with a value of 4.14 million square kilometers: Source: http://nsidc.org/arcticseaicenews/2016/09/2016-ties-with-2007-for-second-lowest-arctic-sea-ice-minimum/ XMETMAN writes of his discovery of a discrepancy between what NSIDC announced yesterday, and what their data actually says. I’ve confirmed his findings by downloading the data myself…

Arctic sea ice melt has turned the corner

I almost called this yesterday, but I needed more data to be sure. All of the data I’ve looked at agrees, Arctic sea ice is now on the upswing, and in a big way. Here is the plot from NSIDC: This graph from Wipneus shows the abruptness of the change: And the physics of ice…

Arctic Ice: An Update – Evidence From the Past is Instructive

Guest opinion: Dr. Tim Ball In a previous article, I noted the treadmill created when you convince politicians to form policy based on untested hypotheses. The anthropogenic global warming (AGW) hypothesis was untested because the Intergovernmental Panel on Climate Change (IPCC) and others determined to prove, rather than disprove it. Professor Richard Lindzen explained years…

Expanding Antarctic sea ice linked to natural variability

From the NATIONAL CENTER FOR ATMOSPHERIC RESEARCH/UNIVERSITY CORPORATION FOR ATMOSPHERIC RESEARCH BOULDER — The recent trend of increasing Antarctic sea ice extent — seemingly at odds with climate model projections — can largely be explained by a natural climate fluctuation, according to a new study led by the National Center for Atmospheric Research (NCAR). The…

Arctic sea ice sets new record low for May

From NSIDC: Daily Arctic sea ice extents for May 2016 tracked two to four weeks ahead of levels seen in 2012, which had the lowest September extent in the satellite record. Current sea ice extent numbers are tentative due to the preliminary nature of the DMSP F-18 satellite data, but are supported by other data…

NSIDC resumes sea ice plots with provisional data

Daily sea ice extent updates resume with provisional data NSIDC has obtained data from the DMSP F-18 satellite and is in the process of intercalibrating the F-18 data with F-17 data. Intercalibration addresses differences between the series of sensors, in order to provide a long-term, consistent sea ice record. While this work continues, we are…

Global Sea Ice Makes A Strong Comeback

By Paul Dorian, Vencore Weather Overview El Nino strengthened significantly during 2015 and peaked in December as one of the strongest such episodes in the past fifty years.  Even though El Nino is a phenomenon characterized by unusually warm water in the equatorial Pacific Ocean, it can have ramifications around the world.  In fact, global…

The Awful Terrible Horrible Global Sea Ice Crisis

Guest Post by Willis Eschenbach My examination of objects cryospherical continues. In my last post, The Size of Icy Reflections, I showed that a change of 10% in the global sea ice area translates into a global average of a 0.1 watt per square metre (W/m2) change in reflected sunlight. In this post, I’ll look at what…

The Size of Icy Reflections

Guest Post by Willis Eschenbach In my continuing wanderings through the regions cryospherical, I find more side roads than main highways. In my last two posts here and here, I discussed the curious inverse relationship between temperature and ice accumulation rates in Greenland and Antarctica. Wanting to understand the changes in the polar oceans that occur when…

The Ice Was All Between

Guest Post by Willis Eschenbach I do my best to maintain my sense of awe regarding the things I study. I’ve had the good fortune in my life to be a commercial fisherman on the Bering Sea, and to voyage and fish on the edges of the Arctic ice. To me, sea ice, whether fixed…

DMI apologizes for their disappeared sea-ice graph debacle

Earlier this week, I published a post titled: DMI disappears an inconvenient sea ice graph . Some of the usual folks who police any sea ice discussion went ballistic over the post, and in some ugly blog posts of their own, suggested I and others were engaging in Lewandowsky inspired “conspiracy ideation”. While others may have been,…

Inconvenient: iceberg calving helps ‘carbon sequestration’ and is ‘helping to slow global warming’

From the UNIVERSITY OF SHEFFIELD and the department of “unknown negative feedbacks” comes this interesting study. While there have been numerous claims that warmer Polar temperatures (due to posited global warming effects) will cause more iceberg calving, I’m sure it will come as quite a shock to those same folks when they discover that there’s…

Claim: Melting sea ice increases Arctic precipitation, complicates climate predictions

From DARTMOUTH COLLEGE and the “Reports of the demise of Arctic Sea Ice are greatly exaggerated” department HANOVER, N.H. – The melting of sea ice will significantly increase Arctic precipitation, creating a climate feedback comparable to doubling global carbon dioxide, a Dartmouth College-led study finds. “The increases of precipitation and changes in the energy balance may…

NCAR: winter sea ice could hold steady in the next several years

NCAR develops method to predict sea ice changes years in advance From the NATIONAL CENTER FOR ATMOSPHERIC RESEARCH/UNIVERSITY CORPORATION FOR ATMOSPHERIC RESEARCH and the “we know so we’ll put that statement in a press release” department comes this interesting tidbit of modeling certainty. BOULDER – Climate scientists at the National Center for Atmospheric Research (NCAR)…

Micro-critters Rule!

A layman’s musings about ecology, and the possibility that, while man may rule the fate of whooping cranes, far smaller creatures may rule the fate of sea-ice. Guest essay by Caleb Shaw Sometimes, as my mind’s eye wanders over the Arctic Ocean, I am drawn ashore to contemplate wonders of the Tundra. I try to…

Arctic sea ice melt may have turned the corner

We haven’t spent much time looking at Arctic Sea Ice this year, partly because I’ve rather lost interest in it as any sort of climatic indicator. This year’s melt seems similar to 2011 according to the comparison graph provided by Japan’s  National Institute of Polar Research. Source: https://ads.nipr.ac.jp/vishop/vishop-extent.html?N The DMI graph also seems to indicate that…