Center for Climatic Research: EBCM 1

Energy Balance Climate Model 1 (EBCM1)

To run the model, choose values for the EBCM parameters, and click the "Run Model" button.

Choose the date of perihelion (the date when the earth and sun are closest together). Perihelion currently occurs in January.	Select a CO2 level as a multiple of the modern value. For example, select "1" for the modern level,"2" for an atmosphere with twice as much CO2 as today.
Choose the tilt of the earth. Enter an angle between 22.45 and 24.45. The modern value is 23.45.	Choose the fraction of global land cover. Enter a value between 0 (all-water planet) and 1 (all-land planet). The modern value is about 0.33.
Choose the eccentricity for the orbit of the earth. Enter a number between 0 and 0.06. The modern value is 0.016.	Select the magnitude of meridional (north-south) atmospheric heat transport efficiency, ranging from 0.5 to 4 times the modern value. (Selecting "1" = modern conditions.)
Select the magnitude of the zonal (east-west) atmospheric heat transport efficiency, ranging from 0.5 to 4 times the modern value. (Selecting "1" = modern conditions.)

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