This page shows northern and southern hemisphere daily sea-ice extent timeseries and
concentration maps estimated from satellite data onward from late 1978. The timeseries
source is the
Sea Ice Index
developed by the National Snow and Ice Data Center (NSIDC).
Each daily value represents a 5-day mean to smooth noise in the satellite data. The
sea-ice concentration maps are generated from 0.5°x0.5° analysis fields from the
NCEP Climate Forecast System. Click the cursor on a timeseries data
value to update the corresponding map. NSIDC maintains a web interface for
the Sea Ice Index here.
Data and maps on this page are updated daily with a one-day lag from observations.
Climate Reanalyzer provides visualizations of existing publicly-available datasets and models. This website
is produced by the Climate Change Institute
at the University of Maine. Our institute has a 50-year
history of polar exploration, and research contributions to glaciology, climate science, and anthropology.
Send inquiries to reanalyzer at gmail.com.
Information on this site is for educational purposes only without any implied warranties. The Climate Institute
and University of Maine shall not be liable for damages or expenses resulting from the use of this website or
data contained within.