查詢結果分析
來源資料
頁籤選單縮合
題名 | 水面及土壤面上熱傳導量推定方法之研究 (月平均蒸發量之推定):應用輸送現象論原理推定蒸發量之研究 |
---|---|
編 次 | 2 |
作者 | 白井清恆; 車張堅; | 書刊名 | 中原學報 |
卷期 | 17 1988.12[民77.12] |
頁次 | 頁85-99 |
分類號 | 434.287 |
關鍵詞 | 土壤面; 水面; 推定; 蒸發量; 熱傳導量; |
語文 | 中文(Chinese) |
中文摘要 | 熱傳導量隨著時間呈週期性起伏變化,在年週期內其總和等於零,因此要推求月平均蒸發量時,須先求得各月之熱傳導量。本研究針對水面及土壤面上二者分別作理論上的分析,同時根據本省各地的氣象資料加以計算,並將水面上熱傳導量之計算值代入本文第一篇中新的蒸發量推定公式中求出月平均蒸發量,再與蒸發計蒸發量作比較。 由計算結果可知,依據輸送現象論的原理可推求熱傳導量並得到良好的水面上月平均蒸發量推定值,但對於蒸發計中水溫的分佈與向外側之傳導熱的分析尚有困難,有待進一步的探討。此外對於土壤面上的蒸發因缺少土壤水分的實測資料,熱傳導量之計算結果尚有誤差。 |
英文摘要 | Heat conduction varies with time cyclical change. The summary of heat cenduction in periodic year is equal to zero. For this reason, in order to estimate monthly average evaporation, at first it is necessary to find the monthly heat conduction. This research analyze those theories with the surface of soil and water separatedly. In addition, according to the meteological data around the island, we can compute the monthly average evaporation by previous research with heat conduction of water surface. Finally, we compare calculated results with the data of evaporation pan. From the computation, it is feasible to estimate heat conduction according to Transfer Phenomena Theory, and also to get a good estimation of monthly average evaporation of water surface. However, it is difficult to analyze temperature distribution of water as well as externalizing heat conduction. These conductions will need further discussion. Beside, because of the lack of observation data in soil moisture, on soil surface evaporation, the computing result of heat conduction still exists some errors. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。