Comparison of Destriping Methods of GRACE Satellite for Total Water Storage Calculation in Peatland Borneo Island

Abstract

GRACE satellites frequently used to calculate total water storage in terrestrial areas, including peatland. Total water storage (TWS) needed to monitor Peatland fires risk. However, processing methods need to be considered carefully. This study intends to find out the best destriping method for estimating total water storage. This study compared data from the CSR model with a maximum degree of 96, from 2002 to 2017, located in Borneo Island. The destriping method compared namely Chen P3M6, Chen P5M8, Chambers 2007, Chambers 2012, Duan, and Swenson. This study used GRAMAT toolbox developed [1]. Results shows of the 6 methods that compared, 3 unique values are produced. Chen P5M8 and Swenson method produced the same value. Chambers 2007, Chambers 2012, and Duan method also produced the same value. Only Chen P3M6 produce different results without similarities. The correlation matrix between methods shows value close to 1, means there is no significant difference between methods. This study concluded that the type of destriping method for TWS calculation in peatland aren’t significantly affecting the result.