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題 名 | 應用NOAA衛星遙測估算蒸發散量之氣象因子=Apply NOAA Staellite Remote Sensing to Estimate Meterorological Characters of Evaportranspiration |
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作 者 | 郭振民; 陳姜琦; 游保杉; | 書刊名 | 農業工程學報 |
卷 期 | 48:3 2002.09[民91.09] |
頁 次 | 頁19-30 |
分類號 | 328.61 |
關鍵詞 | 區域蒸發散; 衛星遙測; Regional evaportranspiration; Satellite remote sensing; NOAA; |
語 文 | 中文(Chinese) |
中文摘要 | 蒸發散量為水平衡估算之重要因子,也是水文觀測中較為缺乏之項目,尤其是區域蒸發散量之估算。近年來衛星遙測科技發展甚為迅速,本文擬利用遙測衛星來估算區域蒸發散量,提供水文平衡估算之參考。以高屏溪流域為研究對象,選用Penman-Monteith法估算集水區蒸發散量。同時以NOAA衛星影像資料估算氣象因子,建立適用於臺灣地區的氣象資料推估方法,其中地表溫度與蒸氣壓差可以根據衛星影像之亮度溫度建立迴歸關係,其估算結果與測站觀測值誤差不大,利用高雄站與阿里山站之蒸發散觀測值來比較,本文之計算區域潛勢蒸發散量,初步發現氣象衛星具有應用於區域蒸發散量估算之潛力。 |
英文摘要 | Evapotranspiration is one of important components in water balance. As the network of evaporation observation is sparse in hydrological system, estimating the regional evapotranspiration is relatively difficult in hydrological analysis. Since remote sensing technology has recently been applied widely, this study aims to use remote sensing images to estimate regional evapotranspiration. Kao-Ping Creek is chosen as study area. We choose Penman-Monteith method for evapotranspiration estimation, in which NOAA satellite images are used to estimate meteorological parameters in Penman-Monteith method. It is found that the average surface temperature and vapor pressure deficit can be estimated by using brightness temperature of satellite image. The accuracy is reasonable. The potential regional evapotranspiration estimated by this work is compared with the observed evaporation data at Kaohsiung and A-Li-Shan station. It may conclude from this work that the meteorological satellite has the potential to be applied for regional evapotranspiration. |
本系統中英文摘要資訊取自各篇刊載內容。