Global temperature prediction based on SARIMA+LSTM model

After the Industrial Revolution, global temperatures generally began to rise. With global warming as the background, this paper builds a forecast model of future temperature, studies to determine whether the temperature rise in March 2022 leads to a larger rise, and builds more than two models to predict the temperature and evaluate the model. SARIMA(1,1,1)(1,1) model and LSTM model were established for temperature prediction. The study found that the temperature will not reach 20°C in either 2050 or 2100, and the global average temperature is expected to reach 20°C around 2180. Through model evaluation, the r square of SARIMA model is 0.87, and the accuracy of LSTM model is 0.783. Therefore, we think the SARIMA model is superior.