【摘 要】
：
With increasing global wanning,the skiing season is shortened to different degrees all over the world.As a crucial way to ensure the sustainable development of the ski industry,snow storage has been gradually studied and applied in Europe.Covering thermal
【机 构】
：
State Key Laboratory of Cryospheric Science,Northwest Institute of Eco-Environment and Resources,Chi
论文部分内容阅读
With increasing global wanning,the skiing season is shortened to different degrees all over the world.As a crucial way to ensure the sustainable development of the ski industry,snow storage has been gradually studied and applied in Europe.Covering thermal insulation materials is a key engineering measure for the success of snow storage.This study used numerical methods rather than an experimental method to evaluate the thermal insulation performance of nine snow storage coverage schemes in Harbin,Beijing,and Altay,China.We investigated the thermal insulation performance of nine snow storage coverage schemes (three natural materials and six artificial ones) using a solar radiation method and an implicit finite difference method.Sensitivity analyses were conducted,and the cost performance of schemes 5-9 were analyzed.Based on the cost and thermal insulation performance,we used schemes 4 (geotextile,straw bale),5 (geotextile,extruded polystyrene foam),and 7 (geotextile,polyurethane foam) to evaluate the snow storage effects in Harbin,Beijing,and Altay.Results showed that among schemes 1-9,scheme 7 has the best thermal insulation performance.If natural materials are used,then scheme 3 gives the best thermal insulation performance.Among schemes 5-9,scheme 5 is the most economical.The heat transfer in Beijing is higher than that in Harbin and Altay,while the latter two show similar heat transfers.The combination of meteorological conditions and coverage schemes influence the melting rate of snowpacks.The melting rate of snowpacks can be reduced with an optimized coverage scheme.The proposed methods can serve the selection of coverage schemes for snow storage.
其他文献
Extreme rainfall events are rare in inland arid regions,but have exhibited an increasing trend in recent years,causing many casualties and substantial socioeconomic losses.A series of heavy rains that began on July 31st,2018,battered the Hami prefecture o
Hanging glaciers hold the absolute dominant number in West China and their changes had important influences on local hydrology,sea-level rise and natural hazards (snow/ice avalanches).However,logistic and operational difficulties have resulted in the lack
The degradation of near-surface permafrost under ongoing climate change on the Qinghai-Tibet Plateau (QTP) is of growing concern due to its impacts on geomorphological and ecological processes,as well as human activities.There is an increased need for an
The simulation of global and regional energy system transition and its potential mitigation cost could intuitively reflect the need for earlier climate mitigation actions.To explore the possible transitions of global and regional energy system,this study
The reanalysis datasets (CRA40) have now been developed in China Meteorological Administration.We aim to compare the differences in surface air temperature (SAT) between observational that has been adjusted for urbanization bias and reanalysis data (NCEPV
The development of ice-and-snow tourism (IST) has great potential for poverty alleviation and is of great significance for promoting the sustainable development of alpine areas.However,little attention has been given to evaluating the suitability and pote
Geological carbon dioxide (CO2) utilization and storage have been widely recognized as one of the important options to deliver greenhouse gas emissions reduction.Reasonable planning is critical to promote CO2 utilization and storage.However,CO2 emissions
China has pledged to peak carbon emissions by 2030 and neutralize emissions by 2060.There is an urgent need to develop a comprehensive and reliable methodology to judge whether a region has reached its carbon emissions peak (CEP),as well as to schedule an
To evaluate direct greenhouse gas emissions from Membrane Biological Reactor (MBR),measurements of nitrous oxide (N2O) and methane(CH4) were made at a pilot-scale MBR treating municipal wastewater Measurements were conducted during two campaigns with some
The Intraseasonal Oscillation (ISO) is the cornerstone for 2-8-week subseasonal prediction.Understanding the decadal variation of the ISO is important for improving subseasonal prediction;however,there is still a gap in our knowledge of ISO dynamics.Here,