TY - RPRT TI - Direct observations of ice seasonality reveal changes in climate over the past 320–570 years AU - Sapna Sharma AU - John J. Magnuson AU - Ryan D. Batt AU - Luke Winslow AU - Johanna Korhonen AU - Yasuyuki Aono PY - 2016 DO - 10.1038/srep25061 UR - https://pubs.usgs.gov/publication/70170590 ID - 70170590 ER -