Middle atmosphere temperature trend and solar cycle revealed by long-term Rayleigh lidar observations

Semidiurnal and Diurnal Tidal Effects in the Middle Atmosphere as Seen by Rayleigh Lidar

The Rayleigh lidar at the Centre d'Essais des Landes has been adjusted to provide continuous day and nighttime measurements when clear weather permits with high resolution in both time and space. These measurements are processed to show tidal effects in the 30to 80-km height range. The observed temperature variations in two 11-day series of data, from November 1988 and January 1989, are treated...

Seasonal oscillations of middle atmosphere temperature observed by Rayleigh lidars and their comparisons with TIMED/SABER observations

Investigation of Long Term Trend of Spatio-Temporal changes of Sea Surface Temperature in Oman Sea

Considering the vast application of sea surface temperature in climatic and oceanic investigations, this parameter was studied in Oman Sea from 1986 to 2015. The SST was surveyed using trend analysis and Global and local Moran’s I spatial autocorrelation. In trend analysis, the Mann-Kendall test was used to determine the trend of SST changes and the Sen's Estimator method was used to examine th...

Multi-Scale Trend Visualization of Long-Term Temperature Data Sets

The analysis and presentation of climate observations is a traditional application of various visualization approaches. The available data sets are usually huge and were typically collected over a long period of time. In this paper, we focus on the visualization of a specific aspect of climate data: our visualization tool was primarily developed for providing an overview of temperature measurem...

Solar cycle changes to planetary wave propagation and their in ̄uence on the middle atmosphere circulation

Recent observations suggest that there may be a causal relationship between solar activity and the strength of the winter Northern Hemisphere circulation in the stratosphere. A three-dimensional model of the atmosphere between 10±140 km was developed to assess the in ̄uence of solar minimum and solar maximum conditions on the propagation of planetary waves and the subsequent changes to the circu...