National Oceanic and
Atmospheric Administration
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What's New Archive

July 21, 2016

Presentation by Jim Overland (NOAA/PMEL) and Muyin Wang. (JISAO/UW)

There were extensive record Arctic temperature extremes in January and February 2016 that continued into April. For January, the Arctic-wide averaged temperature anomaly was 2.0 °C above the previous record of 3.0 °C based on four Reanalysis products.

Two regions of low geopotential height were seen as a major split in the tropospheric polar vortex over the Arctic. Warm air advection north of Alaska and central Eurasia reinforced the ridge that split the flow near the North Pole and contributed to the persistence. 2016 shows that there can be major Arctic contributions from midlatitudes.

Whether Arctic amplification feedbacks are accelerated by the combination of recent thinner, more mobile Arctic sea ice and occasional extreme atmospheric circulation events from midlatitudes is an interesting conjecture.

NOTE: Unfortunately, recording starts about 30 seconds after Jim started speaking.

YouTube Video: https://youtu.be/LCyoabJHOEM 
Website: http://www.pmel.noaa.gov/arctic

July 06, 2016

Principal investigators at the Arctic IERP meeting in Anchorage, AL.

July 06, 2016

PMEL scientists from the Ecosystems and Fisheries Oceanography Coordinated Investigations (EcoFOCI) program attended the first Principal Investigator meeting for the North Pacific Research Board (NPRB)’s five-year Arctic Integrated Ecosystem Research Program (Arctic IERP) in Anchorage, Alaska on June 20-23. 

This historic Arctic Integrated Ecosystem Research Program will study the northern Bering and Chukchi Seas during spring through fall to better understand how changes in physical environmental drivers influence the structure and function of the biological system and access to subsistence resources. The EcoFOCI team (comprised of PMEL, AFSC, JISAO, and Bigelow Laboratory scientists) will lead the Oceanography and Lower Trophic Level Productivity portion of the program under the direction of Carol Ladd. The field seasons for this project are planned to begin in spring 2017 through the fall of 2019. 

The goals of the meeting were to introduce the funded projects, discuss how these projects are connected, identify any gaps, come to a consensus on the overarching hypothesis for the integrated research, introduce PI's from other Arctic projects that may integrate with the Arctic IERP research, and discuss the framework for integration, data management, and communication/outreach during the project.

June 24, 2016

The 2015-2017 Hollings scholars at PMEL and OMAO. From left to right: Cordelia, Allison, Abigial, Audrey, Alfre, Leah and Meghan. Alfre Winmberley is a Hollings Scholar working in OMAO's small boats program. Not pictured: Gabriella

June 24, 2016

This summer, NOAA’s Pacific Marine Environmental Lab is mentoring six undergraduate Hollings scholars and one NSF research experience for undergraduates (REU) student. These students come from all over the United States and all have a passion for the marine environment. The summer internships provide each student with hands-on research experience as they work closely with a mentor. This year, the undergraduates are placed in the Acoustics, Arctic, Carbon, Ocean Climate Stations, Atmospheric Chemistry and Large Scale Ocean Physics groups and are located in Seattle, WA and Newport, OR.

We are very excited to have this year’s cohort: Abigail Birnbaum, Leah Chomiak, Allison Hogikyan, Gabriella Kalbach, Cordelia Sanborn-Marsh, Meghan Shea, and Audrey Taylor.  Read more about each Hollings Scholar and our NSF-REU student on our education page.

Learn more about NOAA’s Ernest F. Hollings (Hollings) Undergraduate Program and the National Science Foundation Research Experience for Undergraduate (NSF-REU) program.

June 07, 2016

A satellite view of the Chukchi and Beaufort Seas on 19 May 2016, showing an exceptionally early and rapid sea-ice retreat along the Alaskan coast.

June 07, 2016

On June 5th, the Arctic Heat Open Science Experiment (Arctic Heat) began over the Chukchi and Beaufort Seas, in the Alaskan Arctic, to collect data to support sea ice and weather forecasting. PMEL will be leading flights aboard a specially-outfitted NOAA Twin Otter aircraft that will be operating during the summer to launch autonomous floats, MRV’s Air-Launched Autonomous Micro-Observer “ALAMO”, and to rapidly collect data over a wide area.

The Chukchi Sea and other seasonally ice-free marginal seas are among the most challenging regions to study because for much of the year the sea ice is not stable enough to deploy equipment on and it can easily wreak havoc on most instruments in the water. Ships and satellites only provide limited access to this domain, and so the progress of research is impeded by the lack of observations.

Arctic Heat is a joint effort of NOAA Pacific Marine Environmental Laboratory (PMEL) Arctic Research, the Innovative Technology for Arctic Exploration (ITAE) program, the ALAMO development group at the Woods Hole Oceanographic Institution, and the Joint Institute for the Study of the Atmosphere and Ocean (JISAO) at the University of Washington. 

PMEL Project: 

June 02, 2016
June 02, 2016

Through September, PMEL and Alaska Fisheries Science Center (AFSC) are testing innovative technologies to survey the Bering Sea. PMEL is once again utilizing the Saildrone, a solar and wind powered unmanned autonomous vehicle developed by Saildrone Inc., as a research platform. Two Saildrones launched from Dutch Harbor, AK on May 23, each equipped with suites of meteorological and oceanographic sensors, plus specially developed echo sounders and modified whale acoustic hydrophones.

Following the successful 2015 oceanographic field trials, the 2016 mission combines both physical and biological oceanography to seek out new ways to supplement traditional vessel-based research. Oceanographic and fisheries data will be validated to the NOAA Ship Oscar Dyson and PMEL moorings. 

Watch the YouTube Broadcast to hear more from the scientists involved. Read more about the mission here and at NOAA Research

Follow along with the saildrone on the Innovative Technology for Arctic Exploration site

June 02, 2016
June 02, 2016

Through September, PMEL and Alaska Fisheries Science Center (AFSC) are testing innovative technologies to survey the Bering Sea. PMEL is once again utilizing the Saildrone, a solar and wind powered unmanned autonomous vehicle developed by Saildrone Inc., as a research platform. Two Saildrones launched from Dutch Harbor, AK on May 23, each equipped with suites of meteorological and oceanographic sensors, plus specially developed echo sounders and modified whale acoustic hydrophones.

Following the successful 2015 oceanographic field trials, the 2016 mission combines both physical and biological oceanography to seek out new ways to supplement traditional vessel-based research. Oceanographic and fisheries data will be validated to the NOAA Ship Oscar Dyson and PMEL moorings. 

Tune into a live broadcast about the mission FRIDAY June 3 at 11 am pacific time here

Follow along with the saildrone on the Innovative Technology for Arctic Exploration site

May 09, 2016

SOAR provides a holistic view of recent changes in the Pacific Arctic marine ecosystem. 

May 09, 2016

The Synthesis of Arctic Research (SOAR) project published an update on May 9, 2016 that highlights how the Pacific Arctic’s new normal conditions are affecting a variety of marine life.  SOAR is 6-year interdisciplinary effort led by PMEL and Fisheries scientists that provides a synthetic view of recent changes in the Pacific Arctic marine ecosystem. These recent changes include longer open-water periods during the summer, fewer days of sea ice cover, reduced sea ice thickness, increased growing season of marine algae and lower pH. A second Special Issue is currently underway and builds on themes and new understanding described in the first Special Issue that featured 17 papers from over 100 contributors.

Through collaboration and synthesis, SOAR is increasing scientific understanding of the complex relationships among oceanographic conditions (physics, chemistry, sea ice), and species in various levels of the food web (from zooplankton and forage fish to seabirds and marine mammals), in the rapidly changing Pacific Arctic marine ecosystem.

Read the project update on Eos, the news arm of the American Geophysical Union.

March 07, 2016

These graphs show the January and February surface air temperature anomaly averaged over the Arctic area (66–90°N) based on NCEP/NCAR Reanalysis. Units are in °Celsius.

March 07, 2016

Right from the beginning of 2016 new records have been set in the Arctic: warmest air temperature on record in both January and February, and the lowest sea ice cover in February. The average temperature anomaly has reached a record of 5.8°C (10.4°F) for January and 4.56°C (8.2°F) for February. This is the warmest period in the Arctic for these two consecutive months since 1948. The Arctic sea ice extent for February 2016 averaged 14.2 million square kilometers (5.5 million square miles), the lowest February extent in the satellite record. Once Arctic scientists at PMEL put this past January and February into historical perspective, they saw that this unusual warmth is unprecedented in both months. This unprecedented warmth is mainly due to the large positive temperature anomalies in the Arctic Ocean and over the North American continents. This year’s record high temperature and low sea ice cover increases concerns about what will happen next in the Arctic and globally.

Read the full story on NOAA Arctic theme page

Scientist(s): 
PMEL Project: 

February 25, 2016

This map shows the timeframe (year) in which the anthropogenic trend becomes distinguishable from internal climate variability. The darker red indicates earlier emergence of the trend while the orange/white areas show emergence later on. The blue stars indicate current ocean carbon sampling locations. 

February 25, 2016

The ocean absorbs a significant fraction, about 40%, of carbon released by fossil fuel burning, thereby reducing climate warming.  However, natural climate variability makes it difficult to directly observe trends in the amount of anthropogenic carbon the ocean is taking up with time.  PMEL scientist and collaborators utilized a modeling approach to separate out the ocean carbon trend due to man-made carbon emissions from this variability.   This separation illustrates the timeframe over which we may expect to observe human driven change in carbon uptake in different ocean regions.  The results show that these trends are largely not detectable at present, but may begin to emerge in certain regions between 2020-2050. The Southern Ocean and Atlantic region are projected to show this uptake first, while the latest emergence occurs in the Pacific and Indian subtropical regions.  

For more information, read the article in Nature, along with Nature's News and Views,  a press release from the University of Wisconsin and visit the NOAA PMEL Arctic project webpage.

Scientist(s): 
PMEL Project: 

December 14, 2015

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December 15, 2015

In 2015, Arctic sea ice reached a maximum extent on 25 February, 15 days earlier than average and the lowest value on record (1979-present). Minimum ice extent in September was the 4th lowest on record. Sea ice continues to be younger and thinner than it was 30 years ago. Changes in sea ice alone are having profound effects on the marine ecosystem (fishes, walruses, primary production) and sea surface temperatures.

Melting occurred over more than 50% of the Greenland Ice Sheet for the first time since the exceptional melting of 2012, and glaciers terminating in the ocean showed an increase in ice velocity and decrease in area. Terrestrial vegetation productivity has been decreasing since 2011.

Read the NOAA Press Release and the complete 2015 Arctic Report Card released today.

Scientist(s): 
PMEL Project: 

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