| RSN符号代码及其在水系地貌特征提取中的应用 |
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| 引用本文： | 董淑华,宫兴龙,邢贞相. RSN符号代码及其在水系地貌特征提取中的应用[J]. 水文, 2015, 35(1): 51-54 |
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| 作者姓名： | 董淑华 宫兴龙 邢贞相 |
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| 作者单位： | 黑龙江省水文局;东北农业大学水利与建筑学院 |
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| 基金项目： | 国家自然科学基金项目(51109036);水利部公益性行业科研专项经费项目(201301096);中国博士后科学基金资助项目(2013M541332);黑龙江省博士后资助项目(LBH-Z12041);黑龙江省水利厅科研开发项目(201318);教育部高等学校博士学科点专项科研基金(20112325120009);黑龙江省级领军人才梯队后备事头人资助项目(500001);黑龙江省博士后启动金(LBH-Q12147);黑龙江省教育厅科学技术研究项目(11541022) |
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| 摘 要： | 研究了自相似河网模型的发生元构成,提出用符号代码标识RSN的初始元和发生元,这种代码依据三个参数:河网的价、发生的元节点数、外链分叉夹角。给出了由此代码计算地貌特征的流程图。采用四种常用内链和外链发生元作为发生元,利用模拟流域基于宽度函数的地貌瞬时单位线为优化目标生成RSN,并计算其地貌特征。
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| 关 键 词： | RSN代码 初始元 发生元 宽度函数 地貌瞬时单位线 |
| 收稿时间： | 2014-12-08 |
RSN String Codes and Its Application in Extraction of Geomorphological Characteristics of River System |
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| DONG Shuhu,GONG Xinglong,XING Zhenxiang. RSN String Codes and Its Application in Extraction of Geomorphological Characteristics of River System[J]. Hydrology, 2015, 35(1): 51-54 |
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| Authors: | DONG Shuhu GONG Xinglong XING Zhenxiang |
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| Affiliation: | DONG Shuhua;GONG Xinglong;XING Zhenxiang;Hydrology Bureau of Heilongjiang Province;School of Water Conservancy & Civil Engineering,Northeast Agricultural University; |
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| Abstract: | In this paper, a self-similar river networks model was put forward, which uses string codes to identify the original unit and the generator unit of RSN (Random Self-similar River Network). These string codes are consist of four parameters: the river networks price, the node number in generator unit, the angle between adjacent chains, and the probability of replacement of generator unit. Set the basic part of limit distribution of water system as the generator unit, and then use the Width Function (WF) of RSN to construct a Geomorphologic In - stantaneous Unit Hydrograph (GIUH) based on WF, which is used to simulate hydrological response. |
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| Keywords: | RSN code general unit generator unit width function GIUH |
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