Arctic Influence (image) Institute of Atmospheric Physics, Chinese Academy of Sciences Share Print E-Mail Caption Arctic influence in winter. Between the two rings of dashed lines (the Northern mid-latitudes) white areas indicate no discernable Arctic influence and dark yellow areas indicate strongest Arctic influence. Credit Tido Semmler Usage Restrictions None Share Print E-Mail Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.