A diagnostic framework is introduced in which anomalous zonally-averaged Rossby wave-activity injection into the stratosphere is decomposed into a contribution solely from zonally-confined upward-propagating Rossby wave packets and another from interaction of the wave packets with the climatological stratospheric planetary waves. To pinpoint the tropospheric sources of the wave packets, a parti...

The prerequisite of the homogenization of climatological time series is to find the points of time where the series underwent abrupt shifts in the climate variable. Since normally no information about the (potentially large) number of such shifts is available beforehand, this is a highly challenging optimization problem for the resolution of which a genetic algorithm approach was proposed. In t...

Dengue is a public health problem on the rise in many tropical regions and affects approximately 100 million people every year worldwide. In this paper, the authors retrospectively assess the association between five climatological variables and dengue incidence using data from the 2002 dengue epidemic in Colima, Mexico. Pluvial precipitation (mm), evaporation (mm), and mean, maximum, and minim...

The results of estimating the areal average climatological rainfall mean in the Guadalhorce river basin in southern Spain are presented in this paper. The classical Thiessen method and three different geostatistical approaches (ordinary kriging, cokriging and kriging with an external drift) have been used as estimators and their results are compared and discussed. The first two methods use only...

This note updates a previous study that utilized a baseline climatology of soundings associated with large hail, significant tornadoes, and 10 or more cloud-to-ground lightning flashes from 1992. Expanding on the earlier analysis, it is shown that three modified forecast parameters have more value in distinguishing between environments that favor significant tornadoes and those that favor large...

B. Chen, X. D. Xu, S. Yang, and T. L. Zhao State Key Laboratory of Severe Weather, Chinese Academy of Meteorological Sciences, Beijing, 100081, China Laboratory of Cloud-Precipitation Physics and Severe Storms (LACS), Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China Key Laboratory for Atmospheric Physics and Environment CMA-Nanjing University of Information ...