The ARCUS Publication Directory is a portal that includes science planning documents, white papers, newsletters, and other reports that are outside of the peer review literature.
The publications index is listed in chronological order beginning with the most recent publication.
Displaying 221 - 230 of 258 publications.
Sea Ice Outlook: 2012 Post-Season Report
POST-SEASON REPORT
HIGHLIGHTS & TAKE-HOME POINTS
The average arctic sea ice monthly extent for September 2012 was the lowest observed in the satellite era at 3.6 million square kilometers, based on National Snow and Ice Data Center (NSIDC) estimates—50 % lower than the 1979-2000 average of 7.0 million square kilometers.
This value compares to the previous low value in 2007 at 4.3 million square kilometers and 4.6 million square kilometers in 2011.
Witness the Arctic | Volume 16, Number 3 - Fall
Witness the Arctic Volume 16, Number 3 - Fall 2012
Sea Ice Outlook: 2012 August Report
Pan-Arctic Full Outlook: Brief Update
OVERVIEW OF RESULTS
With 23 (thank you!) responses for the Pan-Arctic Outlook (plus 5 regional Outlook contributions), the August Sea Ice Outlook projects a September 2012 arctic sea extent median value of 4.3 million square kilometers, with a range of 3.9–4.9 (Figure 1). The quartiles for August are 4.1 and 4.6 million square kilometers, a narrow range given that the uncertainty of individual estimates is on the order of 0.5 million square kilometers. The consensus is for continued low values of September 2012 sea ice extent.
Sea Ice Outlook: 2012 July Report
Summary
With 21 responses for the Pan-Arctic Outlook (plus 5 regional Outlook contributions), the July Sea Ice Outlook projects a September 2012 arctic sea extent median value of 4.6 million square kilometers (Figure 1). The consensus is for continued low values of September sea ice extent. Individual responses are based on a range of methods: statistical, numerical models, comparison with previous rates of sea ice loss, composites of several approaches, estimates based on various non-sea ice datasets and trends, and subjective information.
Witness the Arctic | Volume 16, Number 2 - Spring
Witness the Arctic Volume 16, Number 2 - Spring 2012
Sea Ice Outlook: 2012 June Report
With 19 responses for the Pan-Arctic Outlook (plus 6 regional Outlook contributions), the June Sea Ice Outlook projects a September 2012 arctic sea extent median value of 4.4 million square kilometers, with quartiles of 4.3 and 4.7 million square kilometers (Figure 1). This compares to observed September values of 4.6 in 2011, 4.9 in 2010, and 5.4 in 2009. Both the 2012 quartile values and the range (4.1 to 4.9) are quite narrow. The 2012 June Outlook differs from all previous Outlooks in that there are no projections of extent greater than 5.0.
Sea Ice Outlook: 2011 Post-Season Report
POST-SEASON REPORT
HIGHLIGHTS & TAKE-HOME POINTS
Twenty-six groups contributed to the 2011 Sea Ice Outlook.
The sea ice monthly extent for September 2011 was 4.6 million square kilometers, based on National Snow and Ice Data Center (NSIDC) estimates. This was the second lowest extent behind 2007 and 2.4 million square kilometers below the 1979 to 2000 average.
Sea Ice Outlook: 2011 September Report
September Brief Update
The outlook contributions with a brief update on ice conditions in late August and early September highlight several important points.