Mohammad hossein Gholizadeh; Jamil Amanollahi; Fardin Rahimi
Abstract
The aim of this study was to evaluate the accuracy of MODIS satellite data in monitoring aerosol (PM10 particles) to compare with ground pollution station data It was done in Sanandaj. In this case, the performance of satellite data in measuring dust particles at Sanandaj ground station is identified. ...
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The aim of this study was to evaluate the accuracy of MODIS satellite data in monitoring aerosol (PM10 particles) to compare with ground pollution station data It was done in Sanandaj. In this case, the performance of satellite data in measuring dust particles at Sanandaj ground station is identified. At first, the aerosol optical depth data provided by MODIS sensor was prepared based on the corresponding of the PM10 measured by pollution monitoring station located in Sanandaj.Then, the correlation coefficient between two series of data was calculated. In order to obtain the accurate prediction of PM10 the ARIMA and artificial neural network were used.The AOD of MODIS sensor was combined using maximum likelihood and root mean square error for input of prediction models. At last, a single comparison method for each model as well as models comparison was evaluated to identify the accurate model in predicting of PM10. In the ANN model R2 was acquired in training phase as 0.52, and testing phase as 0.53 with RMSE=1.62 and MAE=2.62. The analysis showed that the ARIMA model 1-0-3 with R2=0.46, MAE=0.06 and RMSE=0.69 is the only acceptable model.It states that ARIMA model, is a suitable model for prediction of PM10. However, the ANN model was more accurately estimated for the correlation between the data.The results of presented study showed that there is direct relationship between the MODIS sensor AOD data and ground station PM10 data.The results conclude that this algorithm is capable for detecting of dust and can be good alternative to the PM10 provided by the ground stations measurement.
