Ice radar raw data (sigma S6 ice radar) of RV POLARSTERN during cruise PS122/4

The radar system on board of Polarstern features a rotating antenna that is mounted on the observation deck, above the bridge. The antenna transmit microwave pulses at short intervals, which are reflected back to the radar system by the water or pack ice. This produces an image of the positions of ice floes within a radius of 3 nautical miles (ca. 5,4 km) and their sizes in relation to the ship. The imaging technique offers an undiminished view and remains unaffected by weather or darkness, i.e., it can penetrate rain clouds and fog and therefore offers an undiminished view even at night. The sector without information is blogged by ship facilities.

The RV Polarstern's marine radar systems operated throughout the drift phase of MOSAiC. The imaging system, which shows Polarstern in the centre of the screen, offers vital information on floe movements, deformation and formation of cracks in the ship's immediate vicinity.

极星号（Polarstern）科考船搭载的雷达系统配备旋转天线，该天线安装于舰桥上方的观测甲板。天线以短间隔发射微波脉冲，这些脉冲经海面或密集浮冰反射后返回雷达系统，据此可生成半径3海里（约5.4千米）范围内浮冰的位置及其与科考船相对尺寸的成像画面。该成像技术可提供无遮挡的观测视野，不受天气与黑暗条件限制：其能够穿透雨云和雾，即便在夜间也可实现无遮挡观测。存在信息缺失的扇区会被船舶设施遮挡。
极星号科考船（RV Polarstern）的船用雷达系统在北极气候研究多学科漂流观测计划（MOSAiC）的漂移阶段全程运行。该成像系统会将极星号显示在屏幕中央，可为科考船紧邻区域内的浮冰移动、变形及裂缝形成提供关键观测信息。