Java Models of Earth System Regulation

The Earth. Photographed in 1972 by the crew of the Apollo 17 mission. It is sometimes known as the Blue Marble photograph.

Models

The JModel suite consists of a number of models of aspects of the Earth System. They are written in the Java language for maximum portability, and are capable of running on most computing platforms including Windows, MacOS and Unix/Linux. The models are controlled via graphical user interfaces (GUI), so no knowledge of computer programming is required to run and perform experiments with them.

The models currently available from the JModels website are:

• Ocean phosphorus cycle
• Ocean nitrogen and phosphorus cycles
• Ocean silicon and phosphorus cycles
• Ocean and atmosphere carbon cycle
• Planetary radiation balance model (under development)

To try the models for yourself, follow this link to the JModels website.

Pathways

The main purpose of the models is to investigate how material and energy cycles of the Earth system are regulated and controlled by different feedbacks. While the central focus is on these feedbacks and Earth System stabilisation, the models can also be used in other ways and for this reason they are several different pathways through this Wiki.

Depending on your area of interest you should select between the following paths:

• Earth system stabilisation
• Earth System response to present-day global change
• Behaviour of the Earth System during past major events
• Ocean biogeochemistry
• Earth's radiation balance