Application of digital terrain analysis to estimate hydrological variables in the Luquillo Mountains of Puerto Rico
Application of digital terrain analysis to estimate hydrological variables in the Luquillo Mountains of Puerto Rico
复制标题
应用数字地形分析来估计波多黎各卢基约山脉的水文变量
DOI：
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发表时间：
2006
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影响因子：
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通讯作者：
A. Pike
中科院分区：
文献类型：
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作者：
A. Pike
数字地形分析技术应用于估算波多黎各东北部Luquillo山脉流域的水文变量。利用10米高程等高线插值出10米分辨率的数字高程模型（DEM）作为水文分析模板。使用DEM定义了代表所有常年流的高密度流网络，包括以前未映射的一阶流。同样，对于水系网内的每10米网格单元，使用从长期降雨量和水流量计导出的回归方程估计年平均降雨量、径流量和流量。结果是一个简单的空间框架来估计该地区的水文变量。
Techniques of digital terrain analysis were applied to estimate hydrological variables in basins draining the Luquillo Mountains of northeastern Puerto Rico. A 10-m resolution Digital Elevation Model (DEM) was interpolated from 10m elevation contour lines and used as the template for hydrological analysis. A high density stream network representing all perennial streams, including previously unmapped 1st order streams, was defined using the DEM. Similarly, for each 10 m grid cell within the stream network, mean annual rainfall, runoff, and discharge were estimated using regression equations derived from long-term rainfall and stream flow gauges. The result is a simple spatial framework to estimate hydrological variables in the region.