Climate trends at each grid cell are slopes of least
square fit lines of a quantity, measured yearly, over a
time period.
Units are change in quantity per decade
Checking two transient observations causes data of the first
observation to be subtracted from that of the second observation.
Model simulations are ignored.
Checking a transient observation and a Model simulation causes the
transient observation to be subtracted from the Model simulation.
Subtractive Model variables are ignored.
Transient observations are available from 1950 to 1999. OIC of
AMIP is not available for the 1950's.
Checking two months causes data of the earlier month to be
subtracted from that of the later month.
For annual data, months are ignored.
For seasonal data, seasons are designated by checking the center
month.
If JavaScripts are enabled by your browser, the status line will
provide more information about climate variables or observations
when the mouse pointer is over one of these quantities or its
checkbox to its left.
The web program's chosen presentation parameters can be overridden
near the bottom of this page.