碩士 / 國立中央大學 / 水文所 / 92 / The purpose of the research is to analyze the total precipitable water (TPW), rainfalls, and the sea-atmosphere parameters variations around Taiwan area, and to make a drought index for predicting the drought occurrence in Taiwan area.
First, the zonal mean TPW of 0o to 30oE from NOAA satellites were analyzed to understand the global scale TPW variation, and TPW and the sea-atmosphere parameters within the area covered 0 to 40N and 100 to 140E measured by the Defense Meteorological Satellite Program (DMSP) satellites were analyzed to see the local scale variation. Radiosonde data collected at Panchiao and Hualian stations in Taiwan were also used to compare the previous two sets of satellite observations for validation.
The result shows that TPW of 2002 and 2003 had the lowest values during the past 12 years. In addition, the latent heat flux and sea surface temperature of 2002 had the lowest values during the recent 8 years.
In the end of 2003, the result also shows that the latent heat flux was normal and the sea surface temperature slightly below normal. That is the reason why the spring rain still maintain normal in the early months of 2004. By the correlation analyzing, the North Taiwan Strait test area was pickup, and the sea-atmospheric parameters in this area were used to make a drought index for the whole Taiwan area. The test result shows that the drought index made in this study could work well.
| Identifer | oai:union.ndltd.org:TW/092NCU05761006 |
| Date | January 2004 |
| Creators | Yu-Ching Chen, 陳宇敬 |
| Contributors | Gin-Rong Liu, 劉振榮 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 100 |
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