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  2. Measurement of sea ice - Wikipedia

    en.wikipedia.org/wiki/Measurement_of_sea_ice

    DMSP satellite. Useful satellite data concerning sea ice began in December 1972 with the Electrically Scanning Microwave Radiometer (ESMR) instrument. However, this was not directly comparable with the later SMMR/SSMI, and so the practical record begins in late 1978 with the launch of NASA's Scanning Multichannel Microwave Radiometer (SMMR) satellite., [5] and continues with the Special Sensor ...

  3. Sea ice thickness - Wikipedia

    en.wikipedia.org/wiki/Sea_ice_thickness

    Sea ice thickness spatial extent, and open water within sea ice packs can vary rapidly in response to weather and climate. [1] Sea ice concentration is measured by satellites, with the Special Sensor Microwave Imager / Sounder (SSMIS), and the European Space Agency's Cryosat-2 satellite to map the thickness and shape of the Earth's polar ice cover. [2]

  4. General Bathymetric Chart of the Oceans - Wikipedia

    en.wikipedia.org/wiki/General_Bathymetric_Chart...

    The General Bathymetric Chart of the Oceans (GEBCO) is a publicly available bathymetric chart of the world's oceans. The project was conceived with the aim of preparing a global series of charts showing the general shape of the seafloor. Over the years it has become a reference map of the bathymetry of the world's oceans for scientists and others.

  5. Analysis of sea ice on one December day doesn't disprove ...

    www.aol.com/analysis-sea-ice-one-december...

    A comparison of polar sea ice extents on two random days does not provide enough information to determine whether or not Earth's climate is changing.

  6. Sea ice - Wikipedia

    en.wikipedia.org/wiki/Sea_ice

    Young ice is a transition stage between nilas and first-year ice and ranges in thickness from 10 cm (3.9 in) to 30 cm (12 in), Young ice can be further subdivided into grey ice – 10 cm (3.9 in) to 15 cm (5.9 in) in thickness and grey-white ice – 15 cm (5.9 in) to 30 cm (12 in) in thickness. Young ice is not as flexible as nilas, but tends ...

  7. Sea ice growth processes - Wikipedia

    en.wikipedia.org/wiki/Sea_ice_growth_processes

    Sea ice is a complex composite composed primarily of pure ice in various states of crystallization, but including air bubbles and pockets of brine.Understanding its growth processes is important for climate modellers and remote sensing specialists, since the composition and microstructural properties of the ice affect how it reflects or absorbs sunlight.

  8. Nearly all Arctic sea ice could melt by the summer of 2027 ...

    www.aol.com/nearly-arctic-sea-ice-could...

    The least amount of sea ice, which typically melts and reforms with the changing of the seasons, in a day this year was at 1.65 million square miles: a stark decline compared to the average ...

  9. Greenland ice sheet - Wikipedia

    en.wikipedia.org/wiki/Greenland_ice_sheet

    Annual ice losses from the Greenland ice sheet accelerated in the 2000s, reaching ~187 Gt/yr in 2000–2010, and an average mass loss during 2010–2018 of 286 Gt per year. Half of the ice sheet's observed net loss (3,902 gigatons (Gt) of ice between 1992 and 2018, or approximately 0.13% of its total mass [53]) happened during those 8 years ...

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