搜索结果: 151-165 共查到“理学 arctic”相关记录269条 . 查询时间(0.718 秒)
Physical properties of High Arctic tropospheric particles during winter
Physical properties High Arctic tropospheric particles winter
font style='font-size:12px;'>
2009/9/23
A climatology of particle scattering properties in the wintertime High Arctic troposphere, including vertical distributions and effective radii, is presented. The measurements were obtained using a li...
Microphysical and optical properties of Arctic mixed-phase clouds. The 9 April 2007 case study.
Microphysical optical properties Arctic mixed-phase clouds
font style='font-size:12px;'>
2009/9/14
Airborne measurements in Arctic boundary-layer stratocumulus were carried out near Spitsbergen on 9 April 2007 during the Arctic Study of Tropospheric Aerosol, Clouds and Radiation (ASTAR) campaign. A...
The two-day wave in the Antarctic and Arctic mesosphere and lower thermosphere
two-day wave Antarctic Arctic mesosphere lower thermosphere
font style='font-size:12px;'>
2009/9/11
There have been comparatively few studies reported of the 2-day planetary wave in the middle atmosphere at polar latitudes. Here we report on a study made using high-latitude meteor radars at Rothera ...
Impact of ocean acidification on a key Arctic pelagic mollusc (Limacina helicina)
Impact ocean acidification key Arctic pelagic mollusc
font style='font-size:12px;'>
2010/1/21
Thecosome pteropods (shelled pelagic molluscs) can play an important role in the food web of various ecosystems and play a key role in the cycling of carbon and carbonate. Since they harbor an aragoni...
Simulating mixed-phase Arctic stratus clouds: sensitivity to ice initiation mechanisms
mixed-phase Arctic stratus clouds ice initiation mechanisms sensitivity
font style='font-size:12px;'>
2009/7/23
The importance of Arctic mixed-phase clouds on radiation and the Arctic climate is well known. However, the development of mixed-phase cloud parameterization for use in large scale models is limited b...
Ozone in the boundary layer air over the Arctic Ocean: measurements during the TARA transpolar drift 2006–2008
Ozone boundary layer air Arctic Ocean measurements TARA transpolar drift
font style='font-size:12px;'>
2009/7/22
A full year of measurements of surface ozone over the Arctic Ocean far removed from land is presented (81° N–88° N latitude). The data were obtained during the drift of the French schooner TARA betwee...
Estimation of permafrost thawing rates in a sub-arctic catchment using recession flow analysis
permafrost thawing rates recession flow analysis sub-arctic catchment
font style='font-size:12px;'>
2009/7/22
Permafrost thawing is likely to change the flow pathways taken by water as it moves through arctic and sub-arctic landscapes. The location and distribution of these pathways directly influence the car...
Stratospheric Ozone Depletion and Solar UV Radiation in the Arctic and Its Potential Impact on Human Health in Finland
UV Impact Ozone Human Health
font style='font-size:12px;'>
2009/6/12
Stratospheric Ozone Depletion and Solar UV Radiation in the Arctic and Its Potential Impact on Human Health in Finland.
The application of an instrument for non-destructive measurements of soil temperature and resistance profiles at a high Arctic field site
soil temperature resistance profiles high Arctic field site
font style='font-size:12px;'>
2009/5/27
An easily constructed and installed instrument for measuring colocated soil temperature and resistance profiles is described. Minimum disturbance to the soil structure is achieved. The system indicat...
Phosphatase activity and organic phosphorus turnover on a high Arctic glacier
Phosphatase activity organic phosphorus high Arctic glacier
font style='font-size:12px;'>
2010/1/20
Arctic glacier surfaces harbour abundant microbial communities consisting mainly of heterotrophic and photoautotrophic bacteria. The microbes must cope with low concentrations of nutrients and with th...
The governing processes and timescales of stratosphere-to-troposphere transport and its contribution to ozone in the Arctic troposphere
stratosphere-to-troposphere transport ozone Arctic troposphere
font style='font-size:12px;'>
2009/5/15
We used the seasonality of a combination of atmospheric trace gases and idealized tracers to examine stratosphere-to-troposphere transport and its influence on tropospheric composition in the Arctic. ...
Microphysical and radiative characterization of a subvisible midlevel Arctic ice cloud by airborne observations – a case study
subvisible midlevel Arctic ice cloud airborne observations Microphysical and radiative characterization
font style='font-size:12px;'>
2009/5/6
During the Arctic Study of Tropospheric Aerosol, Clouds and Radiation (ASTAR) campaign, which was conducted in March and April 2007, an optically thin ice cloud was observed south of Svalbard at aroun...
Imminent ocean acidification in the Arctic projected with the NCAR global coupled carbon cycle-climate model
ocean acidification Arctic NCAR global coupled carbon cycle-climate model
font style='font-size:12px;'>
2010/1/19
Ocean acidification from the uptake of anthropogenic carbon is simulated for the industrial period and IPCC SRES emission scenarios A2 and B1 with a global coupled carbon cycle-climate model. Earlier ...
A Numerical Investigation of Arctic Ocean Dynamics
Numerical Investigation Arctic Ocean Dynamics
font style='font-size:12px;'>
2009/4/2
A barotropic numerical model of the Arctic Ocean is formulated to include irregular basin shape, variable bathymetry, lateral friction, bottom drag, and nonlinear advection terms. Source-sink distribu...
Large surface radiative forcing from topographic blowing snow residuals measured in the High Arctic at Eureka
Large surface radiative forcing topographic blowing snow residuals measured High Arctic Eureka
font style='font-size:12px;'>
2009/3/31
Ice crystals, also known as diamond dust, are suspended in the boundary layer air under clear sky conditions during most of the Arctic winter in Northern Canada. Occasionally ice crystal events can pr...