Dear Colleagues,

The Arctic is changing rapidly: Temperatures are rising twice as fast as the global average; spring time snow cover and sea ice are declining, the Greenland Ice Sheet is losing mass, and permafrost is degrading in many regions. Temperature gradients, both near the surface and in the upper troposphere, are changing, influencing the circulation in large parts of the Northern Hemisphere and impacting oceanic circulation as well. Observations of Arctic climate change is, in most cases, limited to a few centuries. Paleo climate studies provide an excellent extension of our time series and allow comparison of current drastic changes to past abrupt climate changes. Synergistic studies of past and present changes have the potential to provide an increased understanding of the mechanisms driving Arctic climate change.

This Special Issue focuses on soliciting papers that document Arctic change and contribute to an improved understanding of these changes, both past, present and future. Examples of particularly interesting topics include, but are not restricted to

• Evolution of atmospheric and surface processes as well as their mutual coupling under a rapidly changing Arctic climate
• Prediction of changes in Arctic climate
• Budgets of heat and moisture and their changes in the Arctic
• Sea ice retreat and feedback processes
• Paleo studies of Arctic climate change
• Identification of risks for changes and tipping points in both future and past climates
• Coupling between the Arctic and lower latitudes
• Implications of Artic climate changes on regional and global scale.
• Studies that use the paleo climate understanding to describe future changes

Dr. Martin Stendel
Dr. Anne Katrine Faber
Prof. Jens Hesselbjerg Christensen
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Atmosphere is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

• arctic
• climate change
• paleo climate
• tipping points
• atmospheric circulation
• sea ice retreat