Referring to the historical climate prior to the commencement of direct observations of the atmosphere and oceans using instruments (the so-called 'instrumental period').

From Poikilothermic: having a body temperature that varies.

A technique designed to smooth a time series of values by taking the average of surrounding values (in this case 10 each side) plus the point in question.  The surrounding values are first scaled by a [..]

The gradual extension of land by natural forces, as in the addition of sand to a beach by ocean currents, or the extension of a floodplain through the deposition of sediments by repeated flooding. [Th [..]

In the sea processes that are advective can be simply thought of as those that transport a property (eg heat, salinity) of, or substance (eg. plankton, pollutant) in, the water by the movement of the [..]

Study of causes, for example, of disease.

Species that would not naturally occur in a particular ecosystem.

Generation of the ammonia form of nitrogen

Deficiency of oxygen

A change within part of the climate system that can be attributed to human action, rather than natural causes.