Tourist flow in theme parks is unique and temporal characteristics of tourist flow are always one of the key issues in tourist study.

Based on the available data from surface synoptic reports (8 times every day),the temporal and spatial distribution characteristics of sand/dust storms in China in the spring of 2002 are analyzed.

The purpose of this paper is to investigate the temporal and spatial distribution characteristics of hazes through analyzing observation data available from major 721 meteorological stations across China for the period of 1961 to 2007.

Based on the canonical ensemble correlation prediction(CECP) model for seasonal precipitation anomaly,spatial-temporal characteristics for sea surface temperature anomalies(SSTA) versus summer(JJA) precipitation in China are analyzed,using SSTA for various seasons and different regions as predictor fields.

Based on these 99 cases, the temporal and spatial distribution characteristics, especially inter-decade change of severe.

Based on the available high-quality surface-meteorological observation data from 681 stations in China from 1954 to 1998, investigation has been conducted for the temporal and spatial distribution characteristics, especially for interdecadal change and long-term trend of blowing-sand and sandstorm (BSS) in China in recent 45 years.