served from map.meteomadagascar.mg
mean ∂Y [ Madagascar_v4 MON seasonal rainfall SPI-6-month spi ] : ∂Y Standardized Precipitation Index data
mean ∂Y [ Madagascar_v4 MON seasonal rainfall SPI-6-month spi ] .Independent Variables (Grids)
- Longitude (longitude)
- grid: /X (degree_east) ordered (42E) to (51.975E) by 0.03749999 N= 267 pts :grid
- Latitude (latitude)
- grid: /Y (degree_north) ordered (25.96875S) to (11.53125S) by 0.0375 N= 386 pts :grid
Other Info
- bufferwordsize
- 8
- CE
- null
- CS
- null
- datatype
- doublearraytype
- file_missing_value
- -9.9899998
- maxncolor
- 254
- missing_value
- NaN
- units
- 57.2957795130823 radian-1 north
- history
- mean $partialdiff sub Y$ [ Madagascar_v4 MON seasonal rainfall SPI-6-month spi ]
- Boxes with less than 0.0% dropped
Averaged over T[16 Mar 1981 - 15 Apr 1981, 2400 15 Dec 2024] minimum 0.0% data present
- Boxes with less than 0.0% dropped
Last updated: Fri, 07 Mar 2025 02:52:04 GMT
Expires: Tue, 11 Mar 2025 00:00:00 GMT
Data Views
Views
data as colors
data as contours
colors with land
contours with land
colors with coasts| X | Y | |
 Madagascar_v4 MON seasonal rainfall SPI-6-month[spi
] | ||
 mean $partialdiff sub Y$ [ Madagascar_v4 MON seasonal rainfall SPI-6-month spi ] [ | X Y] | M | M |
|---|
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.- Monthly Climatology calculates a monthly climatology by averaging over all years.
- anomalies calculates the difference between the (above) monthly climatology and the original data.
- Integrate along X Y
- Differentiate along X Y
- Take differences along X Y
RMS (root mean square with mean *not* removed) over X Y | X Y |
RMSA (root mean square with mean removed) over X Y | X Y |
Maximum over X Y | X Y |
Minimum over X Y | X Y |
Detrend (best-fit-line) over X Y | X Y |
Note on units