Informational analysis of the Canadian National Hydrometric program monitoring network

被引:0
|
作者
Leach, James M. M. [1 ,6 ]
Keum, Jongho [2 ]
Karn, Jeffrey [3 ]
Garner, Megan [4 ]
Coulibaly, Paulin [2 ,5 ]
机构
[1] Environm & Climate Change Canada, Natl Hydrol Serv, Calgary, AB, Canada
[2] McMaster Univ, Sch Earth Environm & Soc, Hamilton, ON, Canada
[3] Environm & Climate Change Canada, Natl Hydrol Serv, Toronto, ON, Canada
[4] Environm & Climate Change Canada, Natl Hydrol Serv, Regina, SK, Canada
[5] McMaster Univ, Dept Civil Engn, Hamilton, ON, Canada
[6] Environm & Climate Change Canada, Calgary, AB, Canada
关键词
information theory; entropy; information quality ratio; network analysis; Canadian national hydrometric network; theorie de l'information; entropie; ratio de qualite de l'information; analyse de reseau; Reseau Hydrometrique National Canadien; ENTROPY-MULTIOBJECTIVE OPTIMIZATION; DESIGN; STREAMFLOW;
D O I
10.1080/07011784.2023.2242815
中图分类号
TV21 [水资源调查与水利规划];
学科分类号
081501 ;
摘要
An information theory-based analysis was used to evaluate the Canadian National Hydrometric Network. The information theory approach used a mutual information based metric known as information quality ratio (IQR) to evaluate the reproducible information available in the network. The analysis was based on available data from 1 January 2009 to 31 December 2018, and compared using average daily discharge and average daily stage data from all months, summer months, and winter months to calculate the IQR. This evaluation showed that 63-77% of hydrometric stations providing discharge data and 87-90% of hydrometric stations providing stage data, depending on the season, have an IQR equal to or greater than 0.4. These results indicate that the majority of hydrometric stations provide an average or higher level of information during the analysis period. Based on the information theory analysis, the existing hydrometric network has been shown to be average in the gauged regions of Canada, excluding the Great Plains region. These results suggest that if new stations were to be added, greater effort should be focused in the ungauged areas of Northern Canada or to bolster information content of the Great Plains.
引用
收藏
页码:219 / 232
页数:14
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