Tool Name	Earth's Orbital Parameters
Tool ID	2
Library ID	climate_tools
Version	1.0
Author(s)	O.Conrad (c) 2012

Description

Orbital parameters used here are based on the work of Andre L. Berger and its implementation from the NASA Goddard Institute for Space Studies (GISS). Berger's orbital parameters are considered to be valid for approximately 1 million years.

References

Berger, A.L. (1978): Long Term Variations of Daily Insolation and Quaternary Climatic Changes. Journal of the Atmospheric Sciences, volume 35(12), 2362-2367.

Berger, A.L. (1978): A Simple Algorithm to Compute Long Term Variations of Daily or Monthly Insolation. Institut d'Astronomie et de Geophysique, Universite Catholique de Louvain, Louvain-la-Neuve, No. 18.

Parameters

Name	Type	Identifier	Constraints
Output
Earth's Orbital Parameters	table, output	ORBPAR
Options
Start [ka]	floating point number	START	Default: -200.000000
Stop [ka]	floating point number	STOP	Default: 2.000000
Step [ka]	floating point number	STEP	Minimum: 0.001000 Default: 1.000000