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Cloud Seeding For Snow：Does It Work?Scientists Report First Quantifiable Observations（图）
Cloud Seeding For Snow Scientists Report First Quantifiable Observations
2018/2/1
For the first time, scientists have obtained direct, quantifiable observations of cloud seeding for increased snowfall -- from the growth of ice crystals, through the processes that occur in clouds, t...
Black carbon persists in snow and ice around the world
Black carbon persists snow ice around the world
2017/7/24
A new CU Boulder study comparing dissolved black carbon deposition on ice and snow in ecosystems around the world (including Antarctica, the Arctic and alpine regions of the Himalayas, Rockies, Andes ...
Atmospheric scientists take to the skies to test cloud seeding for snow
Atmospheric scientists the skies test cloud seeding snow
2017/2/16
Can cloud seeding -- dispersing particles into the air with the aim of increasing precipitation -- increase snowfall? This week, a team of researchers began a cloud-seeding project in southwestern Ida...
SPRING SNOW A NO-GO?
SPRING SNOW NO-GO
2016/6/12
Spring snowpack, relied on by ski resorts and water managers throughout the Western United States, may be more vulnerable to a warming climate in coming decades, according to a new University of Utah ...
Will more snow over Antarctica offset rising seas?Don’t count on it
snow Antarctica offset rising seas
2016/5/31
Many factors related to warming will conspire to raise the planet’s oceans over coming decades — thermal expansion of the world’s oceans, melting of snow and ice worldwide, and the collapse of massive...
New NSF special report:Let It Snow! The Science of Winter
New NSF special report Let It Snow Science of Winter
2016/1/17
Snow -- that icon of winter -- blankets the land with a beautiful silence. Love it or hate it, we all depend on snow. Our year-round water supply largely comes from snowmelt.But we're not the only one...
Arctic snow not darkening due to soot,dust,Dartmouth-led study finds
Arctic snow soot dust Dartmouth-led
2015/11/12
For millennia, Greenland's ice sheet reflected sunlight back into space, but satellite measurements in recent years suggest the bright surface is darkening, causing solar heat to be absorbed and surfa...
Absorption of radiation by ice is extremely weak at visible and near-ultraviolet wavelengths, so small amounts of light-absorbing impurities in snow can dominate the absorption of solar radiation at t...
Sources of light-absorbing aerosol in arctic snow and their seasonal variation
light-absorbing aerosol arctic snow seasonal variation
2010/11/30
Two data sets consisting of measurements of light absorbing aerosols (LAA) in arctic snow together with suites of other corresponding chemical constituents are presented; the first from Siberia, Green...
Bromide and other ions in the snow, firn air, and atmospheric boundary layer at Summit during GSHOX
Bromide and other ions atmospheric boundary layer Summit GSHOX
2010/10/21
Measurements of gas phase soluble bromide in the boundary layer and in firn air, and Br− in aerosol and snow, were made at Summit, Greenland (72.5° N, 38.4° W, 3200 m a.s.l.) as part of a larger...
Snow-sourced bromine and its implications for polar tropospheric ozone
Snow-sourced bromine polar tropospheric ozone
2010/8/25
In the last two decades, significant depletion of boundary layer ozone (ozone depletion events, ODEs) has been observed in both Arctic and Antarctic spring. ODEs are attributed to catalytic destructio...
Measured black carbon deposition on the Sierra Nevada snow pack and implication for snow pack retreat
black carbon deposition the Sierra Nevada snow pack snow pack retreat
2010/8/16
Modeling studies show that the darkening of snow and ice by black carbon deposition is a major factor for the rapid disappearance of arctic sea ice, mountain glaciers and snow packs. This study provid...
Estimated impact of black carbon deposition during pre-monsoon season from Nepal Climate Observatory – Pyramid data and snow albedo changes over Himalayan glaciers
black carbon deposition pre-monsoon season Nepal Climate Observatory Pyramid data snow albedo Himalayan glaciers
2010/8/16
The possible minimal range of reduction in snow surface albedo due to dry deposition of black carbon (BC) in the pre-monsoon period (March–May) was estimated as a lower bound together with the estimat...
Analysis of snow bidirectional reflectance from ARCTAS Spring-2008 Campaign
snow bidirectional reflectance ARCTAS Spring-2008 Campaign
2010/8/12
The spring 2008 Arctic Research of the Composition of the Troposphere from Aircraft and Satellites (ARCTAS) experiment was one of major intensive field campaigns of the International Polar Year aimed ...
High-accuracy measurements of snow Bidirectional Reflectance Distribution Function at visible and NIR wavelengths——comparison with modelling results
High-accuracy measurements snow Bidirectional Reflectance Distribution Function NIR wavelengths
2010/3/16
High-accuracy measurements of snow Bidirectional Reflectance Distribution Function (BRDF) were performed for four natural snow samples with a spectrogonio-radiometer in the 500–2600 nm wavelength rang...