Cheng-Zhi Zou

Learn More
This paper analyzes the spatial dependence of annual diurnal temperature range (DTR) trends from 1950– 2004 on the annual climatology of three variables: precipitation , cloud cover, and leaf area index (LAI), by classifying the global land into various climatic regions based on the climatological annual precipitation. The regional average trends for annual(More)
A new data set of middle- and upper-stratospheric temperatures based on reprocessing of satellite radiances provides a view of stratospheric climate change during the period 1979-2005 that is strikingly different from that provided by earlier data sets. The new data call into question our understanding of observed stratospheric temperature trends and our(More)
The Microwave Sounding Unit (MSU) onboard the National Oceanic and Atmospheric Administration polar-orbiting satellites measures the atmospheric temperature from the surface to the lower stratosphere under all weather conditions, excluding precipitation. Although designed primarily for monitoring weather processes, the MSU observations have been extensively(More)
The sea surface imprints of Atmospheric Vortex Street (AVS) off Aleutian Volcanic Islands, Alaska were observed in two RADARSAT-1 Synthetic Aperture Radar (SAR) images separated by about 11 hours. In both images, three pairs of distinctive vortices shedding in the lee side of two volcanic mountains can be clearly seen. The length and width of the vortex(More)
[1] A 1000 km long cloud-line over the major axis of the Gulf Stream was detected in imagery from a number of satellites on April 24, 2001. Analysis of environmental conditions shows that such a cloud-line is formed when the synoptic low-level wind is parallel to the Gulf Stream axis and the sky is clear, conditions that rarely occur in the high-temperature(More)
The climate research community uses atmospheric reanalysis data sets to understand a wide range of processes and variability in the atmosphere, yet different reanalyses may give very different results for the same diagnostics. The Stratosphere–troposphere Processes And their Role in Climate (SPARC) Reanalysis Intercomparison Project (S-RIP) is a coordinated(More)
Coastal and hydrologic applications of Envisat Advanced Synthetic Aperture Radar (ASAR) imagery have been developed and are being demonstrated in a near-real-time applications demonstration environment in Alaska and the Gulf of Mexico. Applications include ocean surface winds for weather and storm forecasts, vessel positions for fisheries monitoring and(More)
  • 1