搜索结果: 1-15 共查到“知识库 High Arctic”相关记录17条 . 查询时间(0.066 秒)
Using Narwhals as Ocean-Observing Platforms in the High Arctic
igh Arctic Ocean-Observing Platforms
2015/7/22
Offshore Arctic waters are the most remote and unexplored areas of the Northern Hemisphere. Generally covered by sea ice for most of the year, these waters are characterized by darkness for up to six ...
Environmental Reconstructions from Laminated Lake Sediments, Lake C3, Ellesmere Island, Canadian High Arctic
Environmental Reconstructions Laminated Lake Sediments Lake C3 Ellesmere Island Canadian High Arctic
2014/10/22
Sediments in Lake C3, Ellesmere Island, Nunavut Canada (82°50’N, 78°2’W) contain annual laminations (varves), which provide a record of sediment accumulation for 1900+ years. Varve totals are based on...
Characterising aerosol transport into the Canadian High Arctic using aerosol mass spectrometry and Lagrangian modelling
aerosol transport the Canadian High Arctic aerosol mass spectrometry Lagrangian modelling
2010/11/30
We report the analysis of measurements made using an aerosol mass spectrometer (AMS; Aerodyne Research Inc.) that was installed in the Polar Environment Atmospheric Research Laboratory (PEARL) in summ...
A trajectory analysis of atmospheric transport of black carbon aerosols to Canadian high Arctic in winter and spring (1990–2005)
atmospheric transport black carbon aerosols Canadian high Arctic
2010/8/13
Black carbon (BC) particles accumulated in the Arctic troposphere and deposited on snow have been calculated to have significant effects on radiative forcing of the Arctic regional climate. Applying c...
The effect of misleading surface temperature estimations on the sensible heat fluxes at a high Arctic site – the Arctic Turbulence Experiment 2006 on Svalbard (ARCTEX-2006)
misleading surface temperature sensible heat fluxes ARCTEX
2010/1/18
The observed rapid climate warming in the Arctic requires improvements in permafrost and carbon cycle monitoring, accomplished by setting up long-term observation sites with high-quality in-situ measu...
High Arctic lakes as sentinel ecosystems: Cascading regime shifts in climate, ice cover, and mixing
High Arctic lakes sentinel ecosystems Cascading regime shifts climate ice cover mixing
2014/4/17
Climate and cryospheric observations have shown that the high Arctic has experienced several decades of rapid environmental change, with warming rates well above the global average. In this study, we ...
Reconstructed Runoff from the High Arctic Basin Bayelva based on Mass-Balance Measurements
High Arctic Basin Bayelva Mass-Balance Measurements
2009/10/26
The river Bayelva drains a catchment area of 31.5 km2 in the Kongsfjord area close to the research station Ny-Ålesund (79° N 12°E) on the northwest coast of Spitsbergen. The basin is 54% glacier...
Hydrological Response of a Patchy High Arctic Wetland
Hydrological Response Patchy High Arctic Wetland
2009/10/23
High Arctic patchy wetlands are ecological oases in a polar desert environment
and are vulnerable to climatic warming. At present, understanding of their responses
to external factors (climate and t...
Snow Distribution at a High Arctic Site at Svalbard
Snow Distribution High Arctic Site Svalbard
2009/10/23
In the Arctic regions snow cover has a major influence on the environment both
in a hydrological and ecological context. Due to strong winds and open terrain
the snow is heavily redistributed and th...
Thermo-hydrological Responses to an Exceptionally Warm,Dry Summer in a High Arctic Environment
Thermo-hydrological Responses Dry Summer High Arctic Environment
2009/10/22
1998 was a very warm year for Canada and the High Arctic was no exception. A
typical area was Resolute, Cornwallis Island, Nunavut, where the thaw season
was extended and the thawing degree-days wer...
Physical properties of High Arctic tropospheric particles during winter
Physical properties High Arctic tropospheric particles winter
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...
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
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
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...
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
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...
Fluxes of nitrates between snow surfaces and the atmosphere in the European high Arctic
Fluxes of nitrates snow surfaces atmosphere European high Arctic
2009/3/10
Measurements of atmospheric and snow mixing ratios of nitrates and nitrites and their fluxes above the snow surface were made during two intensive campaigns during spring time 2001 at Ny-Ålesund...