Sea Ice Prediction Network News

Sea Ice Outlook August Report

Figure 1. Distribution of individual Pan-Arctic Outlook values (August Report) for September 2015 sea ice extent.
20 August 2015

The Sea Ice Prediction Network (SIPN) announces the release of the 2015 August Sea Ice Outlook (SIO). There were 38 (including one regional only) contributions—again a new record for the total number of submissions. Contributions were based on a range of methods: statistical, dynamical models, estimates based on trends, and subjective information. The median August Outlook for September 2015 Arctic sea ice extent is 4.8 million square kilometers (km2), 200,000 km2 lower than the June and July medians. This is the last monthly SIO report for the 2015 season. Post-season activities will provide an analysis of the different Outlook methodologist as well as a general review of sea ice dynamics over the summer. For more information, contact Betsy Turner-Bogren (betsy [at] arcus.org).

Call for Contributions: August Sea Ice Outlook Report

The Polar Sea cuts right though the thick sea ice. The blue color means it is multiyear ice (ice that has survived at least two summers). Aboard the USCGC Polar Sea icebreaker in the Beaufort Sea.
3 August 2015

The Sea Ice Prediction Network (SIPN) announces a call for Sea Ice Outlook (SIO) contributions to the August report (based on May, June, and July data). The SIO provides an open process for those interested in Arctic sea ice to share predictions and ideas about the monthly September minimum sea ice extent. Join a growing network of sea ice experts and contribute a pan-Arctic, regional, or informal Outlook. Submission deadline: Monday, 10 August 2015.

Sea Ice Outlook July Report

23 July 2015

The Sea Ice Prediction Network (SIPN) announces the release of the July Arctic Sea Ice Outlook. We received 35 contributions, surpassing last month’s record number of submissions! The submissions use a range of methods including statistical, numerical models, trend-based estimates, and subjective information. The median Outlook value for September 2015 sea ice extent is 5.0 million square kilometers (km2), which is the same as June’s prediction. The overall range is 3.3 to 5.7 million km2 (with the exception of one 0.98 km2 outlying estimate). This month’s report also includes a discussion about the 11 dynamical model contributions as well as sections on regional predictions and the current conditions of the sea ice.

Save the Date - Sea Ice Prediction Workshop

17 July 2015

The Sea Ice Prediction Network (SIPN) announces plans to convene a Sea Ice Prediction Workshop tentatively scheduled for 4-6 May 2016 at the Lamont-Doherty Earth Observatory, Columbia University. This workshop will focus on sea ice prediction on sub-seasonal to inter-annual timescales. Organizers welcome participants with interests in research and operational forecasting. Forecast users are especially encouraged to attend. Outcomes of the meeting will include recommendations for the Sea Ice Outlook and other activities related to sea ice prediction. More specific meeting goals will be available closer to the event. To stay informed about this meeting, please subscribe to the SIPN mailing list. For questions, contact Betsy Turner-Bogren (betsy [at] arcus.org).

Sea Ice Prediction Network (SIPN) Webinar

Sun bounces off of the sea ice on a clear sunny day in the Arctic. Aboard the USCGC Polar Sea icebreaker in the Beaufort Sea.
14 July 2015

Registration is now available for a SIPN webinar entitled "Industry Needs for Seasonal and Sub-seasonal Sea Ice Information and Predictions." This webinar will provide a brief overview of contrasts and commonalities between sea ice variables relevant for geophysical or climate research and those relevant for operational needs in Arctic seas. It is scheduled for Tuesday, 11 August 2015 from 9:00 a.m. to 10:00 a.m. AKDT. For more information, contact Betsy Turner-Bogren at ARCUS (betsy [at] arcus.org).

Call for Public Comments

A trail of broken sea ice left behind the USCGC Healy.
9 July 2015

Igor Polyakov et al. seek public comment on a white paper summarizing the concept of an experimental program drafted by participants of an open workshop entitled "Observations of upper-ocean and sea-ice interactions in the eastern Arctic Ocean," which convened 24-25 April 2014. More information about the workshop is available here. The deadline for public comments is Friday, 24 July. Comments and questions should be directed to Igor Polyakov (igor [at] iarc.uaf.edu).

To download a pdf of the White Paper and an Executive Summary, please see Sea Ice Prediction Network (SIPN) Related Efforts.

Call for Contributions: July Sea Ice Outlook Report

Call for Informal and Early Season Contributions to 2015 SIO
30 June 2015

The Sea Ice Prediction Network announces a call for Sea Ice Outlook (SIO) contributions to the July report—based on May and June data. The Sea Ice Outlook provides an open process for those interested in Arctic sea ice to share predictions and ideas about the monthly September minimum sea ice extent. Join a growing network of sea ice experts and contribute a pan-Arctic, regional, or informal Outlook.

Sea Ice Outlook in the News

Sea Ice Outlook in the News
26 June 2015

The 2015 Sea Ice Outlook (SIO) - June Report received great media coverage by the Alaska Dispatch News. In an article, posted on 25 June, reporter Yareth Rosen provides a summary of the SIO goals and process, range of methods contributors used, links to Sea Ice Prediction Network (SIPN) and associated agencies, and the June median outlook for sea ice extent in September -- converted to square miles (1.93 million square miles).

June Report for the 2015 Sea Ice Outlook

June Report for the 2015 Sea Ice Outlook Now Available
24 June 2015

We received a record 32 contributions using a range of methods including statistical, numerical models, trend-based estimates, and subjective information. The median Outlook value for September 2015 sea ice extent is 5.0 million square kilometers, and predictions fall in a range of 3.3 to 5.7 km2 (with the exception of one 0.98 km2 outlying estimate). This month’s report also includes a discussion about the 11 dynamical model contributions as well as sections on regional predictions and the current conditions of the sea ice.

Resource Available

Photo by Ute Kaden (TREC 2005), Courtesy of ARCUS
21 June 2015

The SIPN 2014 Sea Ice Action Team members Julienne Stroeve, Ed Blanchard-Wrigglesworth, Virginie Guemas, Stephen Howell, François Massonnet, and Steffen Tietsche published a discussion of the 2014 Sea Ice Outlook and forecasting skill of models that predict the extent and other characteristics of Arctic sea ice cover. Their article "Improving Prediction of Arctic Sea Ice Extent" is published in EOS.

Call for Contributions: June Sea Ice Outlook Report

Distribution of individual Pan-Arctic Outlook values (August 2014 Report)
5 June 2015

The Sea Ice Prediction Network announces the launch of the 2015 Sea Ice Outlook season with the first call for contributions for the June report! The Sea Ice Outlook provides an open process for those interested in Arctic sea ice to share predictions and ideas about the monthly September minimum sea ice extent. Join a growing network of sea ice experts and contribute a pan-Arctic, regional, or informal Outlook.

New IceBridge and CryoSat-2 Sea Ice Thickness Data Sets

CryoSat-2 Sea Ice Freeboard, Thickness, and Snow Depth
29 May 2015

Announcing the recent release of new IceBridge and CryoSat-2 sea ice thickness data sets for the 2015 spring season.

The NASA IceBridge Sea Ice Freeboard, Snow Depth, and Thickness Quick Look data set is an evaluation product containing derived geophysical data products retrieved over the Arctic sea ice cover.

The NASA CryoSat-2 Sea Ice Freeboard, Thickness, and Snow Depth Quick Look product is an experimental sea ice thickness data set containing derived geophysical data products retrieved over the Arctic sea ice cover.

Call for Informal and Early Season Contributions to 2015 SIO

Call for Informal and Early Season Contributions to 2015 SIO
14 May 2015

The Sea Ice Prediction Network (SIPN) announces a call for informal and early season contributions to the 2015 Sea Ice Outlook (SIO). This call offers a forum for sharing information on sea ice parameters other than extent and/or for other time periods than are included in the regular monthly reports. It is in addition to the calls for contributions to the regular SIO monthly reports in June, July, and August.

Webinar Archive Available

Sun bounces off of the sea ice on a clear sunny day in the Arctic. Aboard the USCGC Polar Sea icebreaker in the Beaufort Sea.
6 May 2015

The archive is now available for the 5 May 2015 Sea Ice Prediction Network (SIPN) webinar "Observations of Arctic Snow and Sea Ice Thickness from Satellite and Airborne Surveys" presented by Nathan Kurtz, NASA Goddard Space Flight Center. The archive includes a video of the webinar, the presentation slides, and a list of webinar participants.

Sea Ice Prediction Network Webinar Scheduled

Sun bounces off of the sea ice on a clear sunny day in the Arctic. Aboard the USCGC Polar Sea icebreaker in the Beaufort Sea.
15 April 2015

The Sea Ice Prediction Network (SIPN) will host an open webinar entitled "Observations of Arctic Snow and Sea Ice Thickness from Satellite and Airborne Surveys." The presentation, given by Nathan Kurtz of NASA's Cryospheric Sciences Lab at Goddard, will focus on the current state and availability of snow and sea ice thickness data from NASA's Operation IceBridge airborne surveys and the European Space Agency's CryoSat-2 satellite mission. The accuracy and limitations of these operational data sets will also be discussed to place the utility of the data in context for use in a variety of study areas.

This one-hour webinar is scheduled for 10:00 a.m. AKDT (11:00 a.m. PDT, 12:00 p.m. MDT, 1:00 p.m. CDT, and 2:00 EDT) on Tuesday, 5 May 2015.

More information about the webinar is available here.

Sea Ice Concentration Fields for Operational Ice Forecasting

6 April 2015

NSIDC announces availability of the MASIE-AMSR2 (MASAM2) daily 4 km sea ice concentration, which is a prototype concentration product offering greater accuracy and higher resolution in ice concentration fields used to initialize an operational sea ice forecast model. MASAM2 is a blend of two other daily sea ice data products: ice coverage from the Multisensor Analyzed Sea Ice Extent (MASIE) product, at a 4 km grid cell size, and ice concentrations from the Advanced Microwave Scanning Radiometer 2 (AMSR2) at a 10 km grid cell size. This prototype MASAM2 product currently covers July 2012 through mid-November 2014, but it will become a daily product if there is demand for such a product.

SIPN Leadership Team Member Provides Testimony to U.S. Senate Committee

20 March 2015

On Thursday, 5 March 2015 Cecilia Bitz provided the U.S. Senate Energy and Natural Resources Committee with testimony about Arctic research opportunities. Her comments featured the Sea Ice Prediction Network (SIPN) as an example of exciting new work that could deliver even more relevant information to policy makers with further investments. Her comments are recorded from 1:26 to 1:31 in the archived video.

Webinar Archive Available

6 March 2015

The archive is now available for the Sea Ice Prediction Network (SIPN) webinar on "Sea Ice Modeling: Characteristics and Processes Critical for the Radiation Budget," presented by Elizabeth Hunke, Los Alamos National Laboratory. The archive includes video of the webinar, the presentation slides, and a list of webinar participants.

Webinar Reminder

3 March 2015

Reminder: Webinar today, Tuesday, 3 March 2015, from 10:00 a.m. to 11:00 a.m. AKST. on "Sea Ice Modeling: Characteristics and Processes Critical for the Radiation Budget." The speaker is Elizabeth Hunke, Los Alamos National Laboratory. This webinar is designed for the sea ice research community and others interested in learning about sea ice modeling from the global climate model perspective.

Sea Ice Prediction Network (SIPN) Webinar

Sun bounces off of the sea ice on a clear sunny day in the Arctic. Aboard the USCGC Polar Sea icebreaker in the Beaufort Sea.
19 February 2015

Registration is now available for a SIPN webinar entitled "Sea Ice Modeling: Characteristics and Processes Critical for the Radiation Budget." The speaker is Elizabeth Hunke, Los Alamos National Laboratory. This webinar is designed for the sea ice research community and others interested in learning about sea ice modeling from the global climate model perspective. It is scheduled for Tuesday, 3 March 2015 from 10:00 a.m. to 11:00 a.m. AKST. For more information, contact Betsy Turner-Bogren at ARCUS (betsy [at] arcus.org).