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  2. International Code for Ships Operating in Polar Waters

    en.wikipedia.org/wiki/International_Code_for...

    The Code sets out regulations for shipping in the polar regions, principally relating to ice navigation and ship design. The international framework aims to protect the two polar regions — the Arctic (north pole region) and Antarctic (south pole region), from maritime risks. [2] The Code entered into force on 1 January 2017. [2] [3] [4]

  3. Air mass - Wikipedia

    en.wikipedia.org/wiki/Air_mass

    They normally reside over maritime tropical air masses, forming a warmer and drier layer over the more moderate moist air mass below, forming what is known as a trade wind inversion over the maritime tropical air mass. Continental Polar air masses (cP) are air masses that are cold and dry due to their continental source region.

  4. Spatial Synoptic Classification system - Wikipedia

    en.wikipedia.org/wiki/Spatial_Synoptic...

    Based upon the Bergeron air mass classification scheme is the Spatial Synoptic Classification system, or SSC.There are six categories within the SSC scheme: Dry Polar (similar to continental polar), Dry Moderate (similar to maritime superior), Dry Tropical (similar to continental tropical), Moist Polar (similar to maritime polar), Moist Moderate (a hybrid between maritime polar and maritime ...

  5. Polar Class - Wikipedia

    en.wikipedia.org/wiki/Polar_Class

    Seven Polar Classes are defined in the rules, ranging from PC 1 for year-round operation in all polar waters to PC 7 for summer and autumn operation in thin first-year ice. [1] The IACS Polar Class rules should not be confused with International Code for Ships Operating in Polar Waters (Polar Code) by the International Maritime Organization (IMO).

  6. Arctic front - Wikipedia

    en.wikipedia.org/wiki/Arctic_front

    (cA is continental arctic; cP is continental polar; mP is maritime polar; cT is continental tropic; and mT is maritime tropic.) The Arctic front is the semipermanent, semi-continuous weather front between the cold arctic air mass and the warmer air of the polar cell. It can also be defined as the southern boundary of the Arctic air mass. [1]

  7. Synoptic scale meteorology - Wikipedia

    en.wikipedia.org/wiki/Synoptic_scale_meteorology

    Different air masses tend to be separated by frontal boundaries. The Arctic front separates Arctic from Polar air masses, while the Polar front separates Polar air from warm air masses. (cA is continental arctic; cP is continental polar; mP is maritime polar; cT is continental tropic; and mT is maritime tropic.)

  8. RV Kronprins Haakon - Wikipedia

    en.wikipedia.org/wiki/RV_Kronprins_Haakon

    RV Kronprins Haakon is a Norwegian icebreaking polar research vessel owned by the Norwegian Polar Institute.The shiptime use is divided between the main users, the University of Tromsø (50%), Norwegian Polar Institute (30%) and Norwegian Institute of Marine Research (20%).

  9. Captain Arturo Prat Base - Wikipedia

    en.wikipedia.org/wiki/Captain_Arturo_Prat_Base

    The climate is maritime polar (Köppen: ET), being on the coast of the peninsula with less severe averages than expected in Antarctica. [3] [4] Extreme temperatures can reach −29 °C or −20.2 °F in July, which is still quite bearable to humans protected due to considerable moderation of the sea, and a rare heat wave caused the temperature to reach 19 °C or 66.2 °F, a relatively high value.