长江工程职业技术学院学报
長江工程職業技術學院學報
장강공정직업기술학원학보
JOURNAL OF CHANGJIANG ENGINEERING VOCATIONAL COLLEGE
2012年
3期
1-4
,共4页
陈向东%丁俊芝%易柏生%黄云章
陳嚮東%丁俊芝%易柏生%黃雲章
진향동%정준지%역백생%황운장
自相关系数%马尔可夫链%灌溉用水量%预测%高关河水库灌区
自相關繫數%馬爾可伕鏈%灌溉用水量%預測%高關河水庫灌區
자상관계수%마이가부련%관개용수량%예측%고관하수고관구
autocorrelation coefficient%Markov Chain%irrigation water use%forecastl Gaoguanreservoir irrigation district
依据高关水库1972-2010年灌溉用水量资料,应用均值标准差法建立4级分级标准。针对用水量为相依随机变量的特点,以各阶自相关系数为权重,运用马尔可夫链模型预测未来一年的灌溉用水量状态,结果表明,该方法直观、预测准确、计算简便,为灌区灌溉用水量的中长期预测提供了新的分析途径。
依據高關水庫1972-2010年灌溉用水量資料,應用均值標準差法建立4級分級標準。針對用水量為相依隨機變量的特點,以各階自相關繫數為權重,運用馬爾可伕鏈模型預測未來一年的灌溉用水量狀態,結果錶明,該方法直觀、預測準確、計算簡便,為灌區灌溉用水量的中長期預測提供瞭新的分析途徑。
의거고관수고1972-2010년관개용수량자료,응용균치표준차법건립4급분급표준。침대용수량위상의수궤변량적특점,이각계자상관계수위권중,운용마이가부련모형예측미래일년적관개용수량상태,결과표명,해방법직관、예측준학、계산간편,위관구관개용수량적중장기예측제공료신적분석도경。
Based on irrigation water use data of Gaoguan Reservoir from 1972 to 2010, the 4-grad- ing standards are established by applying mean standard deviation method. According to the char- acteristics of dependent random variables of water use and taking autocorrelation coefficients as weights, Markov Chain model is used to predict the state of irrigation water use in the coming year. The result shows that the method is visual, proiections are accurate and calculation is sim- ple, providing a new analytical approach for long-term forcasting of irrigation water use.