Seasonal Analysis of Atmospheric Changes in Hudson Bay during 1998-2018

Fazel-Rastgar, Farahnaz

doi:10.4236/ajcc.2020.92008

Cited by 6 publications

(2 citation statements)

References 41 publications

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“…This area shows one of the largest CFC increases during JAS months (Fig. 8), also corroborated by similar significant changes in AMJ and JAS observed in the reanalysis data (Fazel-Rastgar, 2020). The total CRF is −30.7 W m −2 while +2.7 W m −2 during AMJ.…”

Section: Discussionsupporting

confidence: 82%

Satellite-based evidence of regional and seasonal Arctic cooling by brighter and wetter clouds

Lelli

Vountas

Khosravi

et al. 2022

Preprint

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Abstract. Using two decades of satellite-based measurements of reflectance of solar radiation at the top-of-atmosphere and a complementary record of cloud properties, it is concluded that the loss of Arctic brightness due to sea ice retreat is not compensated by a pan-Arctic increase in cloudiness, but rather by a systematic change in the thermodynamic phase of cloud and a resultant effect on cloud reflectance. Liquid water content of the clouds has increased resulting in positive trends in susceptible cloud properties. Consequently, a cooling trend by clouds is superimposed on top of the pan-Arctic amplified warming, induced by the anthropogenic release of greenhouse gases, the ice albedo feedback and related effects. Except above the permanent and marginal sea ice zone around the Arctic circle, the rate of surface cooling by clouds has increased, both in spring (−32 % in total radiative forcing for the whole Arctic) and in summer (−14 %). The magnitude of this effect depends on both the underlying surface type and changes in the regional Arctic climate.

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Section: Discussionsupporting

confidence: 82%

Satellite-based evidence of regional and seasonal Arctic cooling by brighter and wetter clouds

Lelli

Vountas

Khosravi

et al. 2022

Preprint

View full text Add to dashboard Cite

show abstract

“…This area shows one of the largest CFC increases during summer months (Fig. 10), also corroborated by similar significant changes in AMJ and JAS observed in the reanalysis data (Fazel-Rastgar, 2020). The total CRF is −30.7 W m −2 , while it is 2.7 W m −2 during AMJ.…”

Section: Cloud-phase Considerationssupporting

confidence: 79%

Satellite remote sensing of regional and seasonal Arctic cooling showing a multi-decadal trend towards brighter and more liquid clouds

et al. 2023

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Abstract. Two decades of measurements of spectral reflectance of solar radiation at the top of the atmosphere and a complementary record of cloud properties from satellite passive remote sensing have been analyzed for their pan-Arctic, regional, and seasonal changes. The pan-Arctic loss of brightness, which is explained by the retreat of sea ice during the current warming period, is not compensated by a corresponding increase in cloud cover. A systematic change in the thermodynamic phase of clouds has taken place, shifting towards the liquid phase at the expense of the ice phase. Without significantly changing the total cloud optical thickness or the mass of condensed water in the atmosphere, liquid water content has increased, resulting in positive trends in liquid cloud optical thickness and albedo. This leads to a cooling trend by clouds being superimposed on top of the pan-Arctic amplified warming, induced by the anthropogenic release of greenhouse gases, the ice–albedo feedback, and related effects. Except over the permanent and parts of the marginal sea ice zone around the Arctic Circle, the rate of surface cooling by clouds has increased, both in spring (−32 % in total radiative forcing for the whole Arctic) and in summer (−14 %). The magnitude of this effect depends on both the underlying surface type and changes in the regional Arctic climate.

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Spatiotemporal characteristics of daily precipitation concentration in Iran

Pazhoh,

Darand

2024

Environ Dev Sustain

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Seasonal Analysis of Atmospheric Changes in Hudson Bay during 1998-2018

Cited by 6 publications

References 41 publications

Satellite-based evidence of regional and seasonal Arctic cooling by brighter and wetter clouds

Satellite-based evidence of regional and seasonal Arctic cooling by brighter and wetter clouds

Satellite remote sensing of regional and seasonal Arctic cooling showing a multi-decadal trend towards brighter and more liquid clouds

Spatiotemporal characteristics of daily precipitation concentration in Iran

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