3 years ago

Arctic Sea Ice in the First Half of the 20th Century: Temperature-Based Spatiotemporal Reconstruction

V. A. Semenov, T. A. Matveeva
Global warming in the recent decades has been accompanied by a rapid decline of the Arctic sea ice area (SIA) in summer (11% per decade). To understand the reasons for such changes, it is necessary to evaluate the range of long-term variability of the Arctic sea ice in the period before a significant increase of anthropogenic emissions of greenhouse gases into the atmosphere. Current empirical data on the spatiotemporal dynamics of Arctic sea ice until the 1950s have significant gaps. In this study, monthly average gridded sea-ice concentration (SIC) fields in the first half of the 20th century are reconstructed using the relationship between the spatiotemporal patterns of SIC variability and surface air temperature over the Northern Hemisphere. The reconstructed data show a significant negative anomaly of the Arctic SIA (about 1.5 million km2 in September and 0.7 million km2 in March) in the mid-20th century, which is considerably larger than the corresponding anomaly in other gridded SIC datasets.

Publisher URL: http://link.springer.com/article/10.1134/S0001433820050102

DOI: 10.1134/S0001433820050102

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.