Spatial and temporal variations in glacier aerodynamic surface roughness during the melting season, as estimated at the August-one ice cap, Qilian mountains, China
Junfeng Liu,Rensheng Chen,and Chuntan Han
Junfeng Liu
Qilian Alpine Ecology and Hydrology Research Station, Key Laboratory
of Ecohydrology of Inland River Basin, Northwest Institute of
Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China
Qilian Alpine Ecology and Hydrology Research Station, Key Laboratory
of Ecohydrology of Inland River Basin, Northwest Institute of
Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China
Qilian Alpine Ecology and Hydrology Research Station, Key Laboratory
of Ecohydrology of Inland River Basin, Northwest Institute of
Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou, China
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Glacier surface roughness during melting season was observed by manual and automatic photogrammetry. Surface roughness was larger at the snow and ice transition zone than in fully snow- or ice-covered areas. Persistent snowfall and rainfall both reduce surface roughness. High or rising turbulent heat as a component of surface energy balance tended to produce a smooth ice surface; low or decreasing turbulent heat tended to produce a rougher surface.
Glacier surface roughness during melting season was observed by manual and automatic...
