7 [1] Tropical rainforests are known to exhibit low intrasea8 sonal precipitation variability compared with oceanic areas 9 with similar mean precipitation in observations and models. 10 In the present study, the potential role of transpiration for 11 this difference in precipitation variability is investigated 12 using the National Center for Atmospheric Research 13 (NCAR) atmospheric general ...

[1] The forecast atmospheric hydrologic cycle of the Polar version 3.1.1 of the Weather Research and Forecasting model (WRF) is examined for December 2006 – November 2007. The domain is similar to the Arctic System Reanalysis (ASR), an assimilation of model fields and Arctic observations being conducted partly by the Byrd Polar Research Center. Simulations are performed in 48 h increments initi...

The submitted article addresses the problematic of the cluster analysis. Real data sets concerning the atmospheric precipitation in chosen localities of the Czech Republic were used. The designed models use monthly data from years 2000 to 2007. Presented results refer to a pair of heavy metals – cadmium and lead. The data was processed by the help of the cluster analysis with presenting the res...

The residence time of atmospheric aerosol particles is a function of various removal processes, such as dry deposition by impaction, diffusion, sedimentation and resuspension as well as wet deposition by rain drops (precipitation scavenging). Estimation of the mean-residence time of atmospheric aerosols could be based on measurements of the activities and ratios of activities of cosmic-ray prod...

Spatial patterns and temporal changes in atmospheric-mercury (Hg) deposition were examined in a five-state study area in the Midwestern USA where 32% of the stationary sources of anthropogenic Hg emissions in the continental USA were located. An extensive monitoring record for wet and dry Hg deposition was compiled for 2001–2016, including 4666 weekly precipitation samples at 13 sites and 27 an...

The Last Glacial Maximum (LGM) exhibits different large-scale atmospheric conditions compared to present-day climate due to altered boundary conditions. The regional atmospheric circulation and associated precipitation patterns over Europe are characterized for the first timewith a weather typing approach (circulation weather types, CWT) for LGM paleoclimate simulations. The CWT approach is app...

Errors of coupled general circulation models (CGCMs) limit their utility for climate prediction and projection. Origins of and feedback for tropical biases are investigated in the historical climate simulations of eighteen CGCMs from the Coupled Model Intercomparison Project phase 5 (CMIP5), together with the available Atmospheric Model Intercomparison Project (AMIP) simulations. Based on an in...

H activities have caused dramatic and unprecedented changes in the global chemical and physical environment, including well-documented increases in atmospheric carbon dioxide (CO2) concentration and mean annual temperature (Karl and Knight 1998, New et al. 2001, IPCC 2007). If greenhouse gas emissions continue to increase at present rates, atmospheric CO2 concentrations will more than double pr...