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What is the difference between CMIP5 and CMIP6?

Author

Olivia Carter

Published Mar 05, 2026

What is the difference between CMIP5 and CMIP6?

The vital difference between CMIP5 and CMIP6 is the future scenario. CMIP5 projections are available on the basis of 2100 radiative forcing values for four GHG concentration pathways (van Vuuren and Riahi 2011). In contrast, CMIP6 uses socioeconomic pathways (SSPs) with the CMIP5 scenarios premises (O'Neill et al.

Moreover, what is CMIP5 and CMIP6?

CMIP6 represents a substantial expansion over CMIP5, in terms of the number of modelling groups participating, the number of future scenarios examined and the number of different experiments conducted. The goal of CMIP is to generate a set of standard simulations that each model will run.

One may also ask, how many CMIP6 models are there? (2016). That overview, combined with detailed descriptions of each of the 21 internationally-coordinated CMIP6-Endorsed Model Intercomparison Projects (MIPs) and the CMIPinfrastructure and forcing datasets, specifies standard protocols, shared model diagnostics, and careful cross-comparison frameworks.

Also question is, what does CMIP6 stand for?

The Coupled Model Intercomparison Project, which began in 1995 under the auspices of the World Climate Research Programme (WCRP), is now in its sixth phase (CMIP6).

What is the resolution of CMIP6 models?

As the increase in high-performance computing resources, the recent ongoing CMIP6 coordinated the High Resolution Model Intercomparison Project (HighResMIP) with the horizontal resolution of at least 50 km in the atmosphere and 0.25â—¦ in the ocean, aiming to assess the benefits of increased horizontal resolution in

What is CMIP5 data?

The CMIP is a standard experimental framework for studying the output of coupled atmosphere-ocean general circulation models. CMIP5 (formally: Coupled Model Intercomparison Project Phase 5) is the most current and extensive of the CMIPs.

What is SSP in CMIP6?

RCP = trajectory of emissions and land-use. leading to a specifc forcing level. SSP = Shared socio-economic pathway: story. about how population, GDP, income etc.

How do I get CMIP6 data?

Here are the currently active CMIP6 CoG sites (all data can be accessed via any one of these): USA, PCMDI/LLNL (California) - France, IPSL - Germany, DKRZ -

When was CMIP5 released?

CMIP5 is the model ensemble for the IPCC's Fifth Assessment Report (AR5) and was released in 2014. CMIP6 is the model ensemble for the IPCC's Sixth Assessment Report (AR6) and was released in 2021.

How do I download CMIP5 data?

Download CMIP5 data:
  1. Choose project: CMIP5.
  2. Experiment family: e.g. Historical, RCP etc.
  3. Time frequency: mon (you probably want monthly outputs)
  4. Realm: Maybe you want only aerosol data? Or restrict your search to “atmos†(atmosphere)
  5. Variable: Choose the variable you want.

What is ssp126?

35. mitigation measures (ssp126), air pollutants are substantially reduced across all regions by up to 15 ppb for O3 and 12 µg m-3. for PM2.5. However, for scenarios that encompass weak action on mitigating climate and reducing air pollutant emissions.

Is CMIP5 a GCM?

CMIP5 involves 20 climate modeling research groups around the world with 40 GCMs. To evaluate the performances of these GCMs, their simulated climatological temperature and precipitation for years 1901–1999 are employed.

How many climate models are there?

One simple answer to the question of why there are so many climate models is that science is a global activity. Around the world, there are roughly thirty research groups that have developed their own global circulation models.

What is IPCC in climate change?

The Intergovernmental Panel on Climate Change (IPCC) is the United Nations body for assessing the science related to climate change.

What is a coupled climate model?

A coupled climate model is a computer code that estimates the solution to differential equations of fluid motion and thermodynamics to obtain time and space dependent values for temperature, winds and currents, moisture and/or salinity and pressure in the atmosphere and ocean.

What is coupled model?

The coupling of models is a commonly used approach when addressing the complex interactions between different components of earth system. In climate research and forecasting activities, advanced models are needed, which consider regional and local air-sea interaction.

What are climate forcings?

Climate forcing is the physical process of affecting the climate on the Earth through a number of forcing factors. Examples of some of the most important types of forcings include: variations in solar radiation levels, volcanic eruptions, changing albedo, and changing levels of greenhouse gases in the atmosphere.

Which RCP is most likely?

RCP 4.5 is more likely than not to result in global temperature rise between 2 degrees C, and 3 degrees C, by 2100 with a mean sea level rise 35% higher than that of RCP 2.6.

What RCP8 5?

A sizeable portion of recent studies on future climate impacts have focused on a warming scenario called “RCP8. 5â€. This high-emissions scenario is frequently referred to as “business as usualâ€, suggesting that is a likely outcome if society does not make concerted efforts to cut greenhouse gas emissions.