FAQ Category: Climate models

6. Why are climate models important? 0

6. Why are climate models important?

Understanding past, present and future climate and combining this knowledge with climate models helps to determine natural as well as man-made influences on the climate system of the past and the future (also see“How...

5. Where do the uncertainties of climate models lie? What are their limitations? 0

5. Where do the uncertainties of climate models lie? What are their limitations?

As computational power is limited, there is a lower limit to the grid cell size for which climate models can be calculated (see also “What is a climate model?”). However, there are processes at...

4. How reliable and accurate are climate models? 0

4. How reliable and accurate are climate models?

Modern climate models can generally be considered reliable tools for predicting climate. A recent study (Hausfather et al., 2020) evaluated the performance of various climate models published between the early 1970s and the late...

3. How are climate models validated? How are they tested? 0

3. How are climate models validated? How are they tested?

Climate models are tested by comparison of model predictions with real-world observations. For this purpose, climate models are run over a historical period, from around 1850 to near-present, using best estimates for the past...

2. What are the inputs and outputs for a climate model? 0

2. What are the inputs and outputs for a climate model?

The main inputs for a climate model are external factors, so called “forcings”, that change the amount of the sun’s energy absorbed by the Earth or trapped in the atmosphere. Examples of these forcings...

1. What is a climate model? 0

1. What is a climate model?

Global climate models or General Circulation models (GCMs) are the most complex and precise models for understanding climate systems and predicting climate change. These models aim to mathematically describe the Earth’s climate system based...