With regard to the climatological difference, negative values are distributed in the regions from central China to Korea and Japan.
In 2003, in contrast, the locations are the other way around from 1994, meaning that the spatial distribution for the climatological difference seems to be upside down.
For climatological difference, TCs tend to affect Korea and Japan from the sea east of the Philippines via East China Sea in the non-drought years.
This means that there are other causes than TCs for the severe summer drought in 1994 and the non-drought in 2003 along with the result of the climatological difference.
AOD retrieved from MODIS satellites is also higher in the FN by 0.08 as compared to that in the AN The climatological mean difference between MODIS Terra and Aqua AOD is however, less than the mean difference observed between AOD measured from ground.
In climatological mean difference and 1994, a drought year, there are positive values in Korea, central China and Japan while there are negative values in the SWNP.
The year 2003, a non-drought year, shows a spatial distribution opposite to the climatological mean difference rather than in 1994.
In climatological mean difference and 1994, a drought year, there are an anomalous upward flow on the south of 30°N and anomalous downward flow on the north.
In 1994, a drought year, the negative-valued region of central China is narrower at 30° 35°N, but it is similar to the spatial distribution for the climatological mean difference between drought and non-drought years.
Of the 30 years analyzed, we select 1994 which suffered the severest summer drought and 2003 which had the least severe summer drought to compare them with the climatological mean difference between drought years and non-drought years.
