Interannual solar and net radiation trends in the Canadian Arctic

Interannual and Intraseasonal Variations of the Available Solar Radiation

Interannual Variability of Landfast Ice Thickness in the Canadian High Arctic, 1950-89

A physical one-dimensional heat transfer model of fast ice growth was used to investigate the interannual variability of maximum fast ice thickness at four sites in’the High Arctic over the period 1950-89. The insulating role of snow cover was found to be the most important factor, explaining 30-60% of the variance in maximum ice thickness values. Other snaw-related processes such as slushing a...

Vegetation, plant biomass, and net primary productivity patterns in the Canadian Arctic

[1] We have developed maps of dominant vegetation types, plant functional types, percent vegetation cover, aboveground plant biomass, and above and belowground annual net primary productivity for Canada north of the northern limit of trees. The area mapped covers 2.5 million km including glaciers. Ice-free land covers 2.3 million km and represents 42% of all ice-free land in the Circumpolar Arc...

Ultraviolet radiation enhances Arctic net plankton community production

In this study we report the response of net community production (NCP) of plankton communities in the Arctic surface waters exposure to natural ultraviolet radiation (UVR) conditions. A possible bias in previous measurements performed using borosilicate glass bottles (opaque to most UVR) can underestimate NCP. Here we show that 77% of the sampled communities suffer, on average, 38.5% of net inc...

Interannual Variability in the Decay of Lower Stratospheric Arctic Vortices

The interannual variability of the decay of lower stratospheric Arctic vortices is examined using NCEP/NCAR re-analyses between 1958 and 2000. There is large interannual variability in the characteristics of the decay of the vortex air, with very different characteristics for early and late vortex breakups. In early breakup years (when the vortex breaks up in February and early March) the remna...