What is Map of Change?
For maps showing the historical climate (present day and before) the “change” describes how climate has generally changed over time. This is a trend analyses that describes the average change in climate per year over a given entire period. For maps showing the future predicted climate (present day and beyond) the “change” is a comparison between the future climate to a baseline time period (climatic departures). In the case of the Climate Wizard the baseline is the present-day conditions or more accurately the average temperature and precipitation between 1961 and 1990 — (how different will the conditions be in the future from today?).
