T	X	Y	Z
$integral dX$ $partialdiff sub Z$ [ LEVITUS94 MONTHLY temp ] [ X Y Z | T]	S	M	M	M
grid: /T (months since 01-Jan) periodic (Jan) to (Dec) by 1.0 N= 12 pts :grid	S
grid: /T (months since 01-Jan) periodic (Jan) to (Dec) by 1.0 N= 12 pts :grid	S
grid: /T (months since 01-Jan) periodic (Jan) to (Dec) by 1.0 N= 12 pts :grid	S
grid: /T (months since 01-Jan) periodic (Jan) to (Dec) by 1.0 N= 12 pts :grid	S
grid: /Y (degree_north) ordered (89.5S) to (89.5N) by 1.0 N= 180 pts :grid			M
grid: /Y (degree_north) ordered (89.5S) to (89.5N) by 1.0 N= 180 pts :grid			M
grid: /T (months since 01-Jan) periodic (Jan) to (Dec) by 1.0 N= 12 pts :grid	S
$partialdiff sub Z$ Z[ Z |]				M
$integral dT$ T[ T |]	M

SOURCES .LEVITUS94 .MONTHLY .temp X differences Z partial X integral %5BZ T %5Ddetrend-bfl %5BX T %5Ddetrend-bfl %5BX T %5Ddetrend-bfl %5BY T %5Ddetrend-bfl %5BT %5Ddetrend-bfl %5BX Y %5Ddetrend-bfl %5BX Y T %5Ddetrend-bfl %5BX Z %5Ddetrend-bfl Z partial %5BY T %5Ddetrend-bfl T integral T differences

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
• Differentiate along T
• Take differences along T

Average over T |
RMS (root mean square with mean *not* removed) over T |
RMSA (root mean square with mean removed) over T |
Maximum over T |
Minimum over T |
Detrend (best-fit-line) over T |

Convert units from 0.00694444444444444 year2 to

Note on units