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NDVI Forecasting Model Based on the Combination of Time Series Decomposition and CNN – LSTM

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Abstract

Normalized difference vegetation index (NDVI) is the most widely used factor in the growth status of vegetation, and improving the prediction of NDVI is crucial to the advancement of regional ecology. In this study, a novel NDVI forecasting model was developed by combining time series decomposition (TSD), convolutional neural networks (CNN) and long short-term memory (LSTM). Two forecasting models of climatic factors and four NDVI forecasting models were developed to validate the performance of the TSD-CNN-LSTM model and investigate the NDVI's response to climatic factors. Results indicate that the TSD-CNN-LSTM model has the best prediction performance across all series, with the RMSE, NSE and MAE of NDVI prediction being 0.0573, 0.9617 and 0.0447, respectively. Furthermore, the TP-N (Temperature & Precipitation-NDVI) model has a greater effect than the T-N (Temperature-NDVI) and P-N (Precipitation-NDVI) models, according to the climatic factors-based NDVI forecasting model. Based on the results of the correlation analysis, it can be concluded that changes in NDVI are driven by a combination of temperature and precipitation, with temperature playing the most significant role. The preceding findings serve as a helpful reference and guide for studying vegetation growth in response to climate changes.

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Availability of Data and Materials

The data used to support the findings of this study are available from the corresponding author upon request.

Abbreviations

N DVI :

Normalized difference vegetation index

TSD :

Time series decomposition

C NN :

Convolutional neural network

L STM :

Long short-term memory

ARIMA :

Autoregressive integrated moving average

R /S :

Rescaled range analysis

T CL :

TSD-CNN-LSTM

T C :

TSD-CNN

T L :

TSD-LSTM

T-T :

Temperature-Temperature

T-N :

Temperature-NDVI

P-N :

Precipitation-NDVI

TP-N :

Temperature & Precipitation-NDVI.

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Funding

This study was supported by the National Natural Science Foundation of Innovative Research Groups Project of Green, Intelligent and Safe Mining for Coal Resources (Grant Number: 52121003).

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Contributions

Peiqiang Gao contributed to the research idea, methodology and model design as well as the writing of the paper. Wenfeng Du contributed to the research idea, methodology and paper review. Qingwen Lei contributed to the model design and methodology. Data collection and analysis were performed by Juezhi Li and Shuaiji Zhang. Ning Li contributed to research idea.

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Correspondence to Wenfeng Du.

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The authors declare no conflicts of interest.

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Gao, P., Du, W., Lei, Q. et al. NDVI Forecasting Model Based on the Combination of Time Series Decomposition and CNN – LSTM. Water Resour Manage 37, 1481–1497 (2023). https://doi.org/10.1007/s11269-022-03419-3

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  • DOI: https://doi.org/10.1007/s11269-022-03419-3

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