Mean annual streamflow of selected drainage basins in the coal area of southeastern Montana
Mean annual streamflow of selected drainage basins in the coal area of southeastern Montana
复制标题
蒙大拿州东南部煤区选定流域的年平均径流
DOI：
10.3133/wri8161
复制
发表时间：
1981
期刊：
影响因子：
--
通讯作者：
R. F. Ferreira
中科院分区：
文献类型：
--
作者：
R. F. Ferreira
对蒙大拿州东南部联合堡煤矿区内流域的径流特征进行了估算，为评价未来采矿对环境的影响提供了采矿前数据。1975-77年间，22个数据采集站的年平均径流量估计在0到887立方英尺每秒之间。这些估算是根据研究区内各站的各种径流记录和其他站的连续径流记录得出的。估计10年期间(1968-77年)的年平均径流量在0至572立方英尺每秒之间。这些长期估计是基于周边地区有连续径流记录的站点的数据。研究区域内选定流域的估计年平均径流量(以英寸为单位)没有明显的模式。许多流域的年平均径流量不到0.6英寸；观测到的最大年平均径流量为4.45英寸。摘要对蒙大拿州东南部联合堡矿区内流域的径流特征进行了估算，为评价未来开采对环境的影响提供了开采前的数据。1975-77年间，22个数据采集站的年平均径流量估计在0到887立方英尺每秒之间。这些估算是根据研究区内各站的各种径流记录和其他站的连续径流记录得出的。估计10年期间(1968-77年)的年平均径流量在0至572立方英尺每秒之间。这些长期估计是基于研究区域附近有连续径流记录的站点的数据。研究区域内选定流域的估计年平均径流量(以英寸为单位)没有明显的模式。许多流域的年平均径流量不到0.6英寸；观测到的最大年平均径流量为4.45英寸。
Streamflow characteristics of drainage basins within the Fort Union coal region of southeastern Montana were estimated to provide premining data for evaluating the future effects of mining on the environment. Estimated annual mean streamflow at 22 data-collection stations for water years 1975-77 ranged from 0 to 887 cubic feet per second. These estimates are based on miscellaneous-streamflow records at each station and continuous-streamflow records from other stations in the study area. Estimated mean annual streamflow for a 10-year period (water years 1968-77) ranged from 0 to 572 cubic feet per second. These long-term estimates were based on data from stations in the surrounding area having continuous-streamflow records. Esti- mated mean annual runoff in inches for selected drainage basins within the study area showed no discernible pattern. Many of the drainage basins had a mean annual runoff of less than 0.60 inch; the maximum observed mean annual runoff was 4.45 inches. ABSTRACT Streamflow characteristics of drainage basins within the Fort Union coal region of southeastern Montana were estimated to provide premining data for evaluating the future effects of mining on the environment. Estimated annual mean streamflow at 22 data-collection stations for water years 1975-77 ranged from 0 to 887 cubic feet per second. These estimates are based on miscellaneous-streamflow records at each station and continuous-streamflow records from other stations in the study area. Estimated mean annual streamflow for a 10-year period (water years 1968-77) ranged from 0 to 572 cubic feet per second. These long-term estimates were based on data from stations near the study area having continuous-streamflow records. Estimated mean annual runoff in inches for selected drainage basins within the study area showed no discernible pattern. Many of the drainage basins had a mean annual runoff of less than 0.60 inch; the maximum observed mean annual runoff was 4.45 inches.