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Simulations of the snow covered sea ice surface temperature and microwave effective temperature at L-band Rasmus Tonboe Danish Meteorological Institute.

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Presentation on theme: "Simulations of the snow covered sea ice surface temperature and microwave effective temperature at L-band Rasmus Tonboe Danish Meteorological Institute."— Presentation transcript:

1 Simulations of the snow covered sea ice surface temperature and microwave effective temperature at L-band Rasmus Tonboe Danish Meteorological Institute

2 Meteorological data: air pressure; air temperature; wind speed; shortwave and longwave radiation; air humidity; precipitation 1-D thermodynamic model For each layer: Temperature; density; thickness; scatter-size; salinity; water content (in snow) Emission model: sea ice version of MEMLS Tb, e, Teff, pd... The combined thermodynamic and emission model

3 Ross Sea Weddell Sea Penetration depth in first-year ice

4 Ross Sea Weddell Sea The effective and physical temperature

5 Ross Sea Weddell Sea The 1.4 GHz Tb vs. the 6 GHz Tb new ice

6 Ross SeaWeddell Sea The 1.4 GHz emissivity as a function of ice thickness

7 Ross SeaWeddell Sea The IR temperature vs. 1.4 GHz Tb

8 Ross Sea Weddell Sea Ice concentrations of new- and young ice types are lower than 100%. snow ice thickness

9 Gradient and polarisation algorithms Tb TsIST AIT


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