ScenarioMIP experiment names #1
Replies: 17 comments 33 replies
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A simple extrapolation from CMIP6 names would give Emissions driven
Concentration driven;
Extensions
Note the addition of the overshoot to the high scenario within the extensions list. Questions that come to mind;
@taylor13, let me know your thoughts on the above. I think an initial answer might be useful @CMIP-IPO, If there is any other information that can be shared on the nature of the different scenarios that might help with naming let me know. |
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@claudiatebaldi could you review Matt's suggestions and questions above? |
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In the past, we could easily distinguish between the CMIP3, CMIP5, and CMIP6 "scenario runs" because they were named differently. I'm worried that generic "high" "med", and "low" would likely be used in the future for different scenarios, which might not be that comparable to the previous phase. |
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I have not heard anything, but it would probably be good for the ipo to reach out to scenarioMIP to let them know that this needs to be on their radar.On Sep 24, 2024, at 12:28 PM, Matthew Mizielinski ***@***.***> wrote:
My understanding is that the "SSP" terminology will NOT be taken forward in CMIP7 due to severe pushback from some nations in AR6
Is there a replacement term/acronym from their discussions that we could use in its place?
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How about simply "scenario-high", etc. And to address my concern above, simply include a 7 (for CMIP7) somewhere: "scenario7-high" or "scenario-high7" or "scenario-high-7". We would like not to confuse "7" as identifying the scenario but associated with a CMIP phase. For that reason, I might choose the last option: "scenario-high-7". |
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Hi. First my apologies but I have never received any notification that this discussion was going on. I need to first say that we are in the process of revising the paper and one of the issues is the naming of the low scenarios, which may change slightly. We need to send the whole thing to the SSC in the next few days and we will make a final decision shortly thereafter. I will forward the proposal to add that "scenario7" to the labeling. John is right that we want to stay away from having ssp anywhere near these scenarios' labeling. And as for the question about having a more quantitative labeling, given the switch to emission driven is anybody's guess what the outcomes will be, so we opted for this qualitative nomenclature. Will be back asap with a reaction about that "scenario7". THanks for your patience and thanks Eleanor for alerting me to this. |
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Also, a couple of details: The Medium-Low (ML) scenario is missing from your list |
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A few more consideration/suggestion from Detlef van Vuuren: Completely up to the climate guys, but as esm is to some degree the default, one could have expected esm (earth system model?) to have the default short name, and the concentration-driven scenarios being given the longer names. As also esms can run concentration driven… would the naming not be nicer to just add “cd” (concentration-driven) and “ed” (emission-driven) in front of all scenarios. |
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Hi Claudia and all, I think "scen7" would be fine if that's what's preferred. Anyone else have an opinion? For consistency across CMIP, the approximately two dozen simulations that were emission-driven in CMIP6 were all prefixed with "esm-" (for example, "esm-piControl" and "esm-ssp585"). For the sake of users who have gotten used to this convention, I think we should continue it. thanks for thinking about this and providing your input and feedback, |
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The Strategic Ensemble Design Task Team and CMIP Panel both discussed the
somewhat confusing "esm" designation for CO2 emissions forcing
(particularly as ESMs become more comprehensive may run with emissions of
additional forcings such as methane), but in the end decided to retain this
designation in the current phase to avoid further confusion and defer the
renaming until a clear need arose..
…On Mon, Sep 30, 2024 at 11:14 AM taylor13 ***@***.***> wrote:
Hi Claudia and all,
I think "scen7" would be fine if that's what's preferred. Anyone else have
an opinion?
For consistency across CMIP, the approximately two dozen simulations that
were emission-driven in CMIP6 were all prefixed with "esm-" (for example,
"esm-piControl" and "esm-ssp585"). For the sake of users who have gotten
used to this convention, I think we should continue it.
thanks for thinking about this and providing your input and feedback,
Karl
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Just re-triggering this issue so we can get the scenario names finalised and into the data request. Do these experiments names (based on the format from the thread above but reflecting on the finalised protocol) work? Emissions driven Concentration driven; Extensions |
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Just want to check if ScenarioMIP need to complete the new Experiment registration form, or if @wolfiex has enough information to fill in the CV? |
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@eleanororourke We finally - FINALLY - have consensus around the names of the 7 scenarios! They will be H. High Each of the scenario will have its own extension (and only one). Let me know what you need besides this. I guess the labels will follow your suggestion, just with the new acronyms above and adding a c for the concentration driven experiments even if I find that redundant, given the use of "esm" for the emission driven experiments |
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@claudiatebaldi that's great news! Can I just check the mapping from the old names to the new names. We previously had VLLO and VLHO listed. Is the mapping below correct? VLLO is now LN |
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@claudiatebaldi, all, We'll restore the ScenarioMIP experiment names in the next few days with a slight modification to omit the |
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@claudiatebaldi sorry to bother you again but could we just confirm the scenario extension names too? Are these correct? H-ext |
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We don’t have an M-ext-OS.
From: eleanororourke ***@***.***>
Date: Monday, October 27, 2025 at 3:03 AM
To: WCRP-CMIP/CMIP7-CVs ***@***.***>
Cc: Tebaldi, Claudia ***@***.***>, Mention ***@***.***>
Subject: Re: [WCRP-CMIP/CMIP7-CVs] ScenarioMIP experiment names (Discussion #1)
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@claudiatebaldi<https://github.com/claudiatebaldi> sorry to bother you again but could we just confirm the scenario extension names too? Are these correct?
H-ext
HL-ext
M-ext-OS
M-ext
ML-ext
L-ext
LN-ext
VL-ext
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ScenarioMIP are currently working with the following nomenclature for their experiments:
How should this best be translated to the form needed for the CVs
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