Feature Publication Archive
Sampling Arctic waters: research cruise on USCG cutter Healy. (Mathis/NOAA)
Mathis, J.T., J.N. Cross, W. Evans, and S.C. Doney. 2015. Ocean acidification in the surface waters of the Pacific-Arctic boundary regions. Oceanography 28(2):122–135, http://dx.doi.org/10.5670/oceanog.2015.36.
Chukchi and Beaufort Seas could become less hospitable to shelled animals by 2030
New research by NOAA, University of Alaska, and Woods Hole Oceanographic Institution in the journal Oceanography shows that surface waters of the Chukchi and Beaufort seas could reach levels of acidity that threaten the ability... more »
North America: Warmer Arctic Temperatures Can Reinforce Wavy Jet Stream
Asia: Arctic-Midlatitude Weather Linkages
Overland, J.E., J. Francis, R. Hall, E. Hanna, S.-J. Kim, and T. Vihma (2015): The melting Arctic and mid-latitude weather patterns: Are they connected? J. Climate, doi: 10.1175/JCLI-D-14-00822.1
It is too soon to know if recent extreme cold weather such as the last two East Coast winters are linked to Arctic climate warming, according to new research published in the Journal of Climate by James Overland of NOAA, and other authors from North America, Asia and Europe.
“We are in the pre-consensus stage of a theory that there are links between the rapid warming of the Arctic and some severe weather events since 2007,” said Overland, lead author of “The melting Arctic and Mid-latitude weather patterns: Are they connected?”
He added that “new studies on the... more »
Cohen, J., J.A. Screen, J.C. Furtado, M. Barlow, D. Whittleston, D. Coumou, J. Francis, K. Dethloff, D. Entekhabi, J. Overland, and J. Jones (2014): Recent Arctic amplification and extreme mid-latitude weather. Nature Geosci., 7(9), doi: 10.1038/ngeo2234, 627–637.
Improved understanding of new potential Arctic-lower latitude weather linkages and implications for weather and climate predictions
The role of the Arctic in the global climate system is based on multiple processes unique to the Arctic, driven by modest global warming. Arctic temperatures continue to increase at least 3 times the rate of mid-latitude temperatures. Multiple feedbacks, such as clouds, loss of sea ice and snow cover, heat storage in the ocean, and atmospheric dynamics are a hypothesized cause for this phenomenon known as Arctic amplification. For example, more... more »
Mathis, J.T., J.G. Grebmeier, D.A. Hansell, R.R. Hopcroft, D.L. Kirchman, S.H. Lee, S.B. Moran, N.R. Bates, S. VanLaningham, J.N. Cross, and W.J. Cai (2014): Carbon biogeochemistry of the western Arctic: Primary production, carbon export and the controls on ocean acidification. In The Pacific Arctic Region: Ecosystem Status and Trends in a Rapidly Changing Environment, J.M. Grebmeier and W. Maslowski (eds.), Springer Science+Business Media, Dordrecht, 223–268.
The Arctic Ocean is an important sink for atmospheric carbon dioxide (CO2) with a recent estimate suggesting that the region accounts for as much as 15 % of the global uptake of CO2. The western Arctic Ocean, in particular is a strong ocean sink for CO2, especially in the Chukchi Sea during the open water season when rates of primary production can reach as high as 150 g C m−2. The Arctic marine carbon cycle, the exchange of CO2 between... more »
Chen, K., L. Ciannelli, M.B. Decker, C. Ladd, W. Cheng, Z. Zhou, and K.-S. Chan (2014): Reconstructing source-sink dynamics in a population with a pelagic dispersal phase. PLoS ONE, 9(5), e95316, doi: 10.1371/journal.pone.0095316.
Many marine species have a larval phase. In this phase, larvae drifts with the prevailing ocean currents before settling in nursery locations. In such cases, the spawning locations can be represented as sources and the settling locations of the juvenile or adult stages as sinks. Population connectivity and directionality of flow between sources and sinks can have important implications for management and conservation. The reconstruction of source-sink... more »