served from map.meteomadagascar.mg
∂X detrended-bfl [ Madagascar_v4 MON seasonal rainfall SPI-6-month spi ] : ∂X Standardized Precipitation Index data
∂X detrended-bfl [ Madagascar_v4 MON seasonal rainfall SPI-6-month spi ] .Independent Variables (Grids)
- Time
- grid: /T (months since 1960-01-01) ordered (Jan-Jun 1981) to (Sep 2024 - Feb 2025) by 1.0 N= 525 pts :grid
- Longitude (longitude)
- grid: /X (degree_east) ordered (42.01875E) to (51.95625E) by 0.0375 N= 266 pts :grid
- Latitude (latitude)
- grid: /Y (degree_north) ordered (25.9875S) to (11.5125S) by 0.0375 N= 387 pts :grid
Other Info
- CE
- null
- CS
- null
- datatype
- realarraytype
- file_missing_value
- -9.9899998
- maxncolor
- 254
- missing_value
- NaN
- units
- 57.2957795130823 radian-1 east
- history
- 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| T | X | Y | |
 Madagascar_v4 MON seasonal rainfall SPI-6-month[spi
] | |||
| grid: /T (months since 1960-01-01) ordered (Jan-Jun 1981) to (Sep 2024 - Feb 2025) by 1.0 N= 525 pts :grid | M | ||
|---|---|---|---|
| grid: /X (degree_east) ordered (42E) to (51.975E) by 0.03749999 N= 267 pts :grid | D | ||
| grid: /Y (degree_north) ordered (25.9875S) to (11.5125S) by 0.0375 N= 387 pts :grid | M | ||
 $partialdiff sub X$ detrended-bfl [ Madagascar_v4 MON seasonal rainfall SPI-6-month spi ] [ T | X Y] | M | 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 T X Y
- Differentiate along T X Y
- Take differences along 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 |
Note on units