Secular changes in regional storm tracking are examined as physical mechanisms for observed teleconnections between the New England hydroclimate and four predictor variables: the Southern Oscillation Index, the North Atlantic Oscillation, the Pacific Decadal Oscillation, and regional sea-surface temperatures. The main modes of New England winter precipitation, snowfall, and cyclone variability ...

In this study, the 23-24 March 2016 snow event across west central Wisconsin, south central Minnesota, tapering off into northwest Iowa and extreme southeast South Dakota was analyzed to better understand sharp gradient snow events. The focus of this study was to understand why this snow event occurred and what contributed to the sharp contrast in snow accumulations in such a densely populated ...

Numerical computations are performed with the three-dimensional polythermal ice-sheet model SICOPOLIS in order to investigate the possible impact of a greenhouse-gas-induced climate change on the Greenland ice sheet. The assumed increase of the mean annual air temperature above the ice covers a range from T = 1 C to 12 C, and several parameterizations for the snowfall and the surface melting ar...

An atmospheric stationary wave teleconnection mechanism is proposed to explain how ENSO may affect the Tibetan Plateau snow depth and thereby the south Asian monsoons. Using statistical analysis, the short available record of satellite estimates of snow depth, and ray tracing, it is shown that wintertime ENSO conditions in the central Pacific may produce stationary barotropic Rossby waves in th...

[1] A study of the influences of interdecadal and interannual oceanic-atmospheric influences on April 1 Snow-Water Equivalent (SWE) in the western U.S. is presented. SWE data was identified at 323 Natural Resources Conservation Service (NRCS) SNOTEL (SNOwpack TELemetrysites) stations for the period of 1961 to 2004 and for 121 SNOTEL stations for the period 1941 to 2004. The phases (cold/negativ...

Abstract Accurate snowfall measurements are necessary for meteorology, hydrology, and climate research. Typical uses include creating calibrating gridded precipitation products, the verification of model simulations, driving hydrologic models, input into aircraft deicing processes, estimating streamflow runoff in spring. These applications significantly impacted by errors solid measurements. Th...

We study the dynamics of systems with deterministic trajectories randomly forced by instantaneous discontinuous jumps occurring according to two different compound Poisson processes. One process, with constant frequency, causes instantaneous positive random increments, whereas the second process has a state-dependent frequency and describes negative jumps that force the system to restart from z...