Sea Ice Charts of the Russian Arctic, 1933-2006

Arctic and Antarctic Research Institute charts from 1933 to 2006 provide a long-term record of sea ice conditions for the Northern Sea Route. Charts were compiled every 10 days during navigation seasons and monthly otherwise, relying heavily on reconnaissance flights until 1992. A notable gap exists from 1993 through 1996, limiting continuity for that period.

Use Cases

• Analyzing historical sea ice concentration trends for climate modeling based on the 73-year time series
• Assessing navigational safety along the Northern Sea Route using the chart's geospatial ice data
• Comparing pre- and post-1992 ice observation methodologies due to the shift from reconnaissance flights
• Investigating ice type distribution in the Russian Arctic for operational planning

Strengths

• Provides a 73-year historical record (1933-2006) of Arctic sea ice conditions
• Offers high temporal resolution with charts compiled every 10 days during navigation seasons
• Contains geospatial data focused on the operational Northern Sea Route region

Limitations

• There is a documented gap in data coverage from 1993 through 1996
• Metadata completeness is low, with column names and exact row counts unspecified across platforms
• Platforms disagree on the last update date (2006 vs. 2026), suggesting potential metadata inconsistency

Provenance

Source

Arctic and Antarctic Research Institute (AARI), St. Petersburg, Russia

Collection Method

Compiled from a variety of data sources, with heavy reliance on regular reconnaissance flights until 1992

Time Range

1933-2006

Freshness

2026-04-09 22:29:41.796559

Geography

Russian Arctic, focusing on the Northern Sea Route and later extending into the central Arctic