2007 Ice Watch Joint Ocean Ice Study (JOIS) Sea Ice Observation Program

The cruise occurred in August, providing a snapshot of ice conditions at the end of the 2007 melt season. Through out the cruise we experienced melt conditions, with grease ice and nilas only forming on clear dry nights. Caution should be taken in comparing the 2007 to 2006 observations, as the 2006 cruise occurred two weeks later in the season and we experienced the beginning of the freeze season at latitudes about 76N. Ship-based sea ice observation data collected along the CCGS Louis S. St. Laurent ship track during the mid to late summer melt season.本次科考巡航于8月实施，完整呈现了2007年融冰季末期的海冰实况。巡航全程均处于融冰环境，仅在晴朗干燥的夜间会形成油脂冰（grease ice）与尼罗冰（nilas）。需谨慎开展2007年与2006年观测数据的对比工作：2006年的科考巡航时段较本次晚两周，且当时在约76°N的纬度带已进入结冰季初期。 本数据集为沿CCGS路易丝·圣·洛朗号（CCGS Louis S. St. Laurent）航行轨迹采集的船基海冰观测数据，采集时段为夏季中晚期融冰季。