IRI Analyses SPI SPI-UEA_12-Month: SPI-UEA_12-month data

SPI-UEA_12-month from IRI Analyses SPI: Standardized Precipitation Index analyses of multiple global precipitation datasets.

Independent Variables (Grids)

Time (time)
grid: /T (months since 1960-01-01) ordered (1901) to (1998) by 1.0 N= 1165 pts :grid
Longitude (longitude)
grid: /X (degree_east) periodic (179.75W) to (179.75E) by 0.5 N= 720 pts :grid
Latitude (latitude)
grid: /Y (degree_north) ordered (89.75S) to (89.75N) by 0.5 N= 360 pts :grid

Other Info

bufferwordsize
8
CE
3.0999999
CS
-3.0999999
datatype
doublearraytype
file_missing_value
-9.9899998
maxncolor
254
missing_value
NaN
scale_max
3.0999999
scale_min
-3.0999999
units
unitless
colorscale

References

Guttman1999

McKee_etal1993

McKee_etal1995

Last updated: Wed, 15 May 2024 11:45:23 GMT

Data Views

TXY
[ T | X Y]MMM


Filters

Here are some filters that are useful for manipulating data. There are actually many more available, but they have to be entered manually. See Ingrid Function Documentation for more information. Average over T X Y | T X T Y X Y | T X Y |
RMS (root mean square with mean *not* removed) over T X Y | T X T Y X Y | T X Y |
RMSA (root mean square with mean removed) over T X Y | T X T Y X Y | T X Y |
Maximum over T X Y | T X T Y X Y | T X Y |
Minimum over T X Y | T X T Y X Y | T X Y |
Detrend (best-fit-line) over T X Y | T X T Y X Y | T X Y |
Convert units from unitless to

Note on units