By Barbara Shields
The National Ice Center (NIC) uses an ArcGIS extension to process satellite imagery of polar regions, analyze ice conditions, and create sea-ice and iceberg maps that ships use to navigate in often treacherous waters.
Satellite imagery is loaded into the Satellite Image Processing and Analysis System (SIPAS), where analysts study the sea ice and produce the maps. They generate about 80 standard GIS maps per week.
The US Navy, shipping enterprises, fisheries, petroleum companies, and ocean scientists use the maps. Read the article.
NIC maps show features like polynyas -- areas of open water surrounded by pack ice. Photo: US Navy Submarine Force, US Pacific Fleet.