Please use this identifier to cite or link to this item: https://hdl.handle.net/11499/9743
Title: Three-dimensional imputation of missing monthly river flow data
Authors: Dikbaş, Fatih
Keywords: 3D imputation
Büyük Menderes River
Data-driven modeling
Missing data
River flow estimation
Autocorrelation
Estimation
Flow of water
Stream flow
Time series
Analysis and modeling
Correlation value
Data-driven model
River flow
Three dimensional space
Time-series data
Rivers
correlation
data set
estimation method
hydrological modeling
river flow
three-dimensional flow
time series analysis
Buyuk Menderes River
Turkey
Publisher: Sharif University of Technology
Abstract: Imputation of missing data is a critical part of accurate data analysis and modeling. This paper presents 3D imputation as a new data-driven methodology to estimate missing values in time series data. The method is based on the assumption that all the observed data in a time series are related with each other and with data of the some other series. The available data is placed in a three-dimensional space so that the increasing or decreasing relationships between the observed data are appropriately represented. For the estimation of each missing value, the method searches and determines the best possible group of estimator data within the data space. Different data groups are found and used for the estimations of each individual group of missing data. The method is validated by removing and estimating all the observed monthly flow data of Sarayköy station on Büyük Menderes River in Turkey. Data of the downstream Burhaniye station constituted the second data layer in the model. High correlation values were obtained for all years between observations and estimations and the missing data of Sarayköy station was also estimated by using the proposed method. © 2016 Sharif University of Technology. All rights reserved.
URI: https://hdl.handle.net/11499/9743
ISSN: 1026-3098
Appears in Collections:Mühendislik Fakültesi Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection
WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection

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