Seasonal snow cover and climate change in the Hadley Centre GCM

Northern Hemisphere snow cover varies greatly through the year, and the presence of snow has a large impact on interactions between the land surface and the atmosphere. This paper outlines the representation of snow cover in the Hadley Centre GCM, and compares simulated snow cover with satellite and ground-based observations. Climate warming in a simulation with increased concentrations of CO2 and sulphate aerosols is found to lead to larger reductions in snow cover over North Ameriea and Europe than over Asia.

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Seasonal snow cover and climate change in the Hadley Centre GCM

Annals of Glaciology ◽

10.1017/s0260305500014282 ◽

1997 ◽

Vol 25 ◽

pp. 362-366 ◽

Cited By ~ 5

Author(s):

Richard Essery

Keyword(s):

Climate Change ◽

Snow Cover ◽

Northern Hemisphere ◽

Climate Warming ◽

Land Surface ◽

Large Impact ◽

Seasonal Snow ◽

Sulphate Aerosols ◽

Hadley Centre ◽

Seasonal Snow Cover

Northern Hemisphere snow cover varies greatly through the year, and the presence of snow has a large impact on interactions between the land surface and the atmosphere. This paper outlines the representation of snow cover in the Hadley Centre GCM, and compares simulated snow cover with satellite and ground-based observations. Climate warming in a simulation with increased concentrations of CO2and sulphate aerosols is found to lead to larger reductions in snow cover over North Ameriea and Europe than over Asia.

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A spatio-temporal analysis of trends in Northern Hemisphere seasonal snow-cover, 1971-2017

10.24124/2020/59025 ◽

2020 ◽

Author(s):

◽

Michael Ian Allchin

Keyword(s):

Snow Cover ◽

Northern Hemisphere ◽

Temporal Analysis ◽

Seasonal Snow ◽

Spatio Temporal ◽

Seasonal Snow Cover

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Global distribution of snow avalanches and changing activity in the Northern Hemisphere due to climate change

Annals of Glaciology ◽

10.3189/1998aog26-1-337-342 ◽

1998 ◽

Vol 26 ◽

pp. 337-342

Author(s):

T. G. Glazovskaya

Keyword(s):

Snow Cover ◽

Northern Hemisphere ◽

Lower Boundary ◽

Active Regions ◽

Snow Avalanches ◽

Seasonal Snow ◽

The World ◽

Altitudinal Belts ◽

Using Data ◽

Seasonal Snow Cover

Snow avalanches occur in the mountains of all continents and climatic zones. The lower boundary of avalanche distribution rises from sea level in polar and temperate zones to 6000 m in the tropics. Four altitudinal belts of avalanching are distinguished: (I) permanent snow; (II) stable seasonal snow cover; (III) unstable snow cover; and (IV) rare snowfalls. Most avalanche-danger areas of the world belong to the stable seasonal snow-cover bell.Using data from a GFDL Q-flux Model, we estimated possible changes of the main characteristics of the avalanche regime in the Northern Hemisphere: depth of snow cover, duration of the avalanche-prone period and number of days with avalanche-prone snowfalls. At the beginning of the twenty-first Century, there will likely be a smoothing of the sharp differences in avalanche activity between various mountain regions of the World. Avalanche activity should be less in the most active regions and it is likely to increase in regions with low avalanche activity.

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Global distribution of snow avalanches and changing activity in the Northern Hemisphere due to climate change

Annals of Glaciology ◽

10.1017/s0260305500015068 ◽

1998 ◽

Vol 26 ◽

pp. 337-342 ◽

Cited By ~ 2

Author(s):

T. G. Glazovskaya

Keyword(s):

Snow Cover ◽

Northern Hemisphere ◽

Lower Boundary ◽

Active Regions ◽

Snow Avalanches ◽

Seasonal Snow ◽

The World ◽

Altitudinal Belts ◽

Using Data ◽

Seasonal Snow Cover

Snow avalanches occur in the mountains of all continents and climatic zones. The lower boundary of avalanche distribution rises from sea level in polar and temperate zones to 6000 m in the tropics. Four altitudinal belts of avalanching are distinguished: (I) permanent snow; (II) stable seasonal snow cover; (III) unstable snow cover; and (IV) rare snowfalls. Most avalanche-danger areas of the world belong to the stable seasonal snow-cover bell. Using data from a GFDL Q-flux Model, we estimated possible changes of the main characteristics of the avalanche regime in the Northern Hemisphere: depth of snow cover, duration of the avalanche-prone period and number of days with avalanche-prone snowfalls. At the beginning of the twenty-first Century, there will likely be a smoothing of the sharp differences in avalanche activity between various mountain regions of the World. Avalanche activity should be less in the most active regions and it is likely to increase in regions with low avalanche activity.

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