Bookcover of Drought Forecasting
Booktitle:

Drought Forecasting

Application of hybrid ARIMA-SVR model based on SPI for the forecast of drought

LAP LAMBERT Academic Publishing (2020-10-13 )

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ISBN-13:

978-620-2-91865-7

ISBN-10:
6202918659
EAN:
9786202918657
Book language:
English
Blurb/Shorttext:
Drought forecasts could effectively reduce the risk of drought. Data-driven models are suitable forecast tools because of their minimal information requirements. The motivation for this study is that because most data-driven models, such as autoregressive integrated moving average (ARIMA) models, can capture linear relationships but cannot capture nonlinear relationships they are insufficient for long-term prediction.The hybrid ARIMA–support vector regression (SVR) model proposed in this paper is based on the advantages of a linear model and a nonlinear model. The multi scale standard precipitation indices (SPI:SPI1, SPI3, SPI6, and SPI12) were forecast and compared using the ARIMA model and the hybrid ARIMA–SVR model. The performance of all models was compared using measures of persistence, such as the coefficient of determination, root-mean-square error, mean absolute error, Nash–Sutcliffe coefficient,and kriging interpolation method in the ArcGIS software.
Publishing house:
LAP LAMBERT Academic Publishing
Website:
https://www.lap-publishing.com/
By (author) :
Zhang Qi
Number of pages:
56
Published on:
2020-10-13
Stock:
Available
Category:
Building and environmental technology
Price:
39.90 €
Keywords:
Drought forecast,, SPI, Arima Model, SVR model

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