Quality control (QC) was undertaken prior to the data
analysis in order to eliminate any erroneous values and non
climatic biases in the time series. This QC procedure for TRMM
data has been done by the TRMM Science Data and Information
System (TSDIS) in the satellite data post-processing work.
However, we have applied further QC procedure to TRMM data
in this study to prepare for rainfall diurnal cycle analysis.
The QC procedures applied in this study consist of: (1)
checking missing values of the data; (2) checking maximum and
mean values of each grid of the data; and (3) checking the
distribution of the data.