Download of the JMA's Global Surface Temperature Anomalies Data

Data are stored in ASCII.
All values are stored as temperature anomalies from the 1991 - 2020 average in degrees Celsius.
Missing data are set to the value given in the header. (normally -9999.0)
Grids are 5° x 5°.

Data array consists of 36 rows by 72 columns.
The grid at the 1st column in the 1st row stores the value for the grid box at 2.5°E and 87.5°N.
The grid at the 2nd column in the 1st row stores the value for the grid box at 7.5°E and 87.5°N.
The grid at the 72nd column in the 36th row stores the value for the grid box at 2.5°W and 87.5°S.

Each file of "Whole Period" on this page stores the monthly and annual values from 1891 to the last year.
Each file of "Decade Files" stores the monthly values for each decade.

Header

# Year  Month  Day   Rows  Columns  Missing   Lon-Lat at (1,1)   Lon-Lat at (72,36)

/Sample/
#  2008    12  null    36    72 Missing=-9999.00  (1,1)=(2.5E,87.5N) and (72,36)=(2.5W,87.5S).