Radiative Impact of Arctic Stratus Over Varying Sea Ice Conditions During ARISE
Abstract
We present measurements of the solar and infrared radiative heating rates of Arctic stratus sampled by the NASA C130 aircraft during the Arctic Radiation-IceBridge Sea and Ice Experiment (ARISE) in September 2014. Measurements of the up- and down-welling broadband solar irradiance, broadband infrared irradiance, and spectral solar irradiance, combined with measurements of the downwelling diffuse broadband solar irradiance are used to characterize the radiative impact of the stratus. Heating rates are directly determined from the divergence of the net irradiance measurements with altitude and indirectly from cloud microphysical measurements (ice and liquid water content, cloud droplet number and size distribution) in a closure type study. In particular, we will present results from the flight on September 19, 2014 where the aircraft sampled a low level stratus deck overlying a distinct gradient in sea ice conditions, from open ocean to solid ice pack, that provided a unique opportunity to quantify the impact of surface conditions on the radiative properties of Arctic stratus.
- Publication:
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AGU Fall Meeting Abstracts
- Pub Date:
- December 2016
- Bibcode:
- 2016AGUFM.A51G0145B
- Keywords:
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- 3337 Global climate models;
- ATMOSPHERIC PROCESSESDE: 3339 Ocean/atmosphere interactions;
- ATMOSPHERIC PROCESSESDE: 3349 Polar meteorology;
- ATMOSPHERIC PROCESSESDE: 0738 Ice;
- CRYOSPHERE