Rainfall in the Andean Páramo: New Insights from High-Resolution Monitoring in Southern Ecuador
Rainfall in the Andean Páramo: New Insights from High-Resolution Monitoring in Southern Ecuador
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安第斯帕拉莫的降雨：厄瓜多尔南部高分辨率监测的新见解
DOI：
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发表时间：
2015
期刊：
影响因子：
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通讯作者：
R. Célleri
中科院分区：
文献类型：
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作者：
Ryan S. Padrón;B. Wilcox;P. Crespo;R. Célleri
摘要在山区，降雨对数百万人的供水起着关键作用。然而，这些站点的降雨量数据有限，而且质量普遍较低，因此很难评估降雨的性质、数量和时间。尤其是帕拉莫，这是安第斯山脉北部的一个高海拔草原，是厄瓜多尔、哥伦比亚和委内瑞拉大量人口的主要水源。在这项研究中，使用了高分辨率激光测雨仪数据和标准翻斗式雨量计数据，以提高对参数中降雨的认识。在长达36个月的时间里，厄瓜多尔南部一个高海拔(3780米)的水源集水区对降雨量进行了监测。这一时期的年平均降雨量为1345毫米。结果表明：(I)如果考虑到极低强度事件(毛毛雨)的输入，降雨量比以前认为的要高15%；(Ii)全年都有降雨(只有大约12%的天数是干燥的)；(Iii)降雨发生在
AbstractIn mountainous regions, rainfall plays a key role in water supply for millions of people. However, rainfall data for these sites are limited and generally of low quality, making it difficult to evaluate the nature, amount, and timing of rainfall. This is particularly true for the paramo, a high-elevation grassland in the northern Andes that is a primary source of water for large populations in Ecuador, Colombia, and Venezuela. In this study, high-resolution laser disdrometer data and standard tipping-bucket rain gauge data were used to improve knowledge of rainfall in the paramo. For 36 months, rainfall was monitored in a high-elevation (3780 m MSL) headwater catchment in southern Ecuador. Average annual rainfall during this period was 1345 mm. Results indicate that (i) when input from very low–intensity events (drizzle) is taken into account, rainfall is 15% higher than previously thought; (ii) rainfall occurs throughout the year (only approximately 12% of the days are dry); (iii) rainfall occurs...