基于交互熵的黄河宁蒙段气温动力学特性分析  

The Dynamics Characterization of Temperature Based on Cross-Entropy in Ning-Meng Reach of the Yellow River

作　　者：张云鹏[1] 李艳玲[1] 王志良[1] 

机构地区：[1]华北水利水电大学,河南郑州450011

出　　处：《人民黄河》2013年第8期10-12,共3页Yellow River

基　　金：国家重点基础研究发展计划项目(2011CB403306);教育部重点研究项目(209125)

摘　　要：为研究黄河上游宁蒙河段各测站凌汛期气温变化的动力学特征和耦合关系,依据修正交互熵理论,采用Shannon熵对气温变化进行符号序列分析,计算各测站的交互熵与延迟交互熵,提取延迟信息。结果表明,宁蒙河段各测站的动力学特征与测站之间的距离和地貌有关,耦合关系与测站间的距离和纬度差有关。下河沿与青铜峡测站属于同一个动力学系统并存在1 d的延迟,石嘴山与下河沿存在2 d的延迟,巴彦高勒与头道拐存在1 d的延迟。In order to study dynamics and coupling relations of Ning-Meng ~ach in the upper Yellow River, modified cross-entropy theory was pro- posed. Cross-entropy and delay cross-entropy of all stations was calculated and analyzed by Shannon Entropy to extract delay information. The re- suits show that dynamics of each station is connected with distance and terrain features, while the coupling information is related to the distance and latitude. It is concluded that the stations of Qingtongxia and Xiaheyan belong to the same dynamics system and there is one-day delay, furthermore Shizuishan and Xiaheyan has two days delay, yet Bayangaole and Toudaoguai has one day delay.

关 键 词：符号动力学 交互熵 耦合 气温变化 黄河宁蒙河段 

分 类 号：F224.1[经济管理—国民经济] P333[天文地球—水文科学]