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.
Checking two Model variables causes the first variable to be
subtracted from the second variable.
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.