Assessment of AMSR2 Ice Extent and Ice Edge in the Arctic Using IMS

• Published in: Remote Sensing
• Main Authors: Yinghui Liu, Sean Helfrich, Walter N. Meier, Richard Dworak
• Format: Article in Journal/Newspaper
• Language: English
• Published: MDPI AG 2020
• Subjects: sea ice; sea ice extent; sea ice edge; AMSR2; IMS; Arctic; Science; Q; Arctic Ocean; Hanssen; Chukchi; Sea ice
• Online Access: https://doi.org/10.3390/rs12101582; https://doaj.org/article/e06dc54bd2ae43a5bf33c5027db2cc67

This work assesses the AMSR2 (the Advanced Microwave Scanning Radiometer 2) ice extent and ice edge in the Arctic using the ice extent products of NOAA’s Interactive Multisensor Snow and Ice Mapping System (IMS) from the period of July 2015 to July 2019. Daily values and monthly means of four statistical scores (hit rate, false alarm ratio, false alarm rate, and Hanssen-Kuiper Skill Score) over the Arctic Ocean show distinct annual cycles. IMS ice edges often extend further south compared to those from AMSR2, with up to 100 km differences over the Beaufort, Chukchi, and East Siberian Seas in August and September.