https://pmip4.lsce.ipsl.fr/ 2026-10-21T15:22:07+00:00 https://pmip4.lsce.ipsl.fr/ https://pmip4.lsce.ipsl.fr/lib/exe/fetch.php/wiki:dokuwiki.svg text/html 2019-09-16T11:00:19+00:00 Anonymous (anonymous@undisclosed.example.com) https://pmip4.lsce.ipsl.fr/doku.php/wg:ptof:analyses?rev=1568631619&do=diff PMIP4 Papers There are many researchers involved with PMIP4, so we expect that there will be many papers associated with it. There is no desire for PMIP to restrict or proscribe the manuscripts that researchers work upon. However there is clearly a role for some synthesis across various PMIP4 which may need a bit of coordination and support. Functionally we see that there is a pyramid of research activities with 3 different tiers of synthesis and coordination needed. text/html 2018-09-19T17:15:15+00:00 Anonymous (anonymous@undisclosed.example.com) https://pmip4.lsce.ipsl.fr/doku.php/wg:ptof:current_aims_and_scope?rev=1537377315&do=diff Focus of the P2FVar Working group The challenge To make full use of the available paleoclimate information, with a focus on improving future predictions Strategy - methodology * Identify and document quantitative relationships across multiple time periods and check consistency with available observations. text/html 2022-11-03T08:24:33+00:00 Anonymous (anonymous@undisclosed.example.com) https://pmip4.lsce.ipsl.fr/doku.php/wg:ptof:data?rev=1667463873&do=diff Contact --- Julia Hargreaves 2013/04/26 06:53 to contribute to this page, or leave a comment in the discussion box. How to find actual data to compare to model output I am sure there is more than indicated below. Ask the authors of the Experimental description papers! Last one or two millennia text/html 2022-11-03T08:24:14+00:00 Anonymous (anonymous@undisclosed.example.com) https://pmip4.lsce.ipsl.fr/doku.php/wg:ptof:discussion_of_future_runs?rev=1667463854&do=diff Contact --- Julia Hargreaves 2013/04/26 06:53 to contribute to this page, or leave a comment in the discussion box. Estimating the model forcing for LGM_sens runs A seed for discussion by Masa Yoshimori and Julia Hargreaves. In order to investigate sensitivity of the climate system to different forcing (LGM vs. CO2 increase), we need to know the radiative forcing of each model rather accurately. As we consider the LGMGHG experiment, we would like to know the LGMGHG forcing as well. The forci… text/html 2019-08-29T14:36:46+00:00 Anonymous (anonymous@undisclosed.example.com) https://pmip4.lsce.ipsl.fr/doku.php/wg:ptof:index?rev=1567089406&do=diff PMIP WG - Past2Future: insights from a constantly varying past Coordinators: Julia Hargreaves, Kira Rehfeld and Chris Brierley Group description Paleoclimate modellers have for many years argued the importance of paleoclimate simulations as a means of increasing understanding of the climate system. However, it is only since the fifth iteration of the climate model inter-comparison project (CMIP5) that simulations of paleoclimates have been officially included. This endeavour created the first… text/html 2022-11-03T08:24:21+00:00 Anonymous (anonymous@undisclosed.example.com) https://pmip4.lsce.ipsl.fr/doku.php/wg:ptof:lgm_existing_runs?rev=1667463861&do=diff Back to LGM sensitivity homepage. Contact --- Julia Hargreaves 2013/04/26 06:53 to contribute to this page, or leave a comment in the discussion box. LGM sensitivity experiments, existing, in progress and planned LGMGHG = Pre-industrial conditions with LGM greenhouse gases imposed LGMICE = Pre-industrial conditions with LGM ice sheet imposed text/html 2018-09-06T08:44:34+00:00 Anonymous (anonymous@undisclosed.example.com) https://pmip4.lsce.ipsl.fr/doku.php/wg:ptof:lgm_people?rev=1536223474&do=diff People interested in LGM sensitivity Person Location Model or other Role Julia Hargreaves BlueSkiesResearch.org.uk, UK Organiser, MIP analysis Aradhna Tripati UCLA, USA data model comparisons Masa Yoshimori Hokkaido Uni,, Japan MIP analysis Bette Otto-Bliesner NCAR, USA CCSM Pedro DiNezio IPRC, Hawaii, USA CESM text/html 2018-09-06T08:44:12+00:00 Anonymous (anonymous@undisclosed.example.com) https://pmip4.lsce.ipsl.fr/doku.php/wg:ptof:lgm_sens?rev=1536223452&do=diff Last Glacial Maximum Sensitivity Subgroup The Last Glacial Maximum Sensitivity Subgroup was started recently to bring together those who are interested in the experiments which are aimed at analysing the LGM forcings separately. Members may have already have performed runs, be planning to perform runs, or be interested in analysing the runs from different groups. text/html 2021-02-11T07:48:51+00:00 Anonymous (anonymous@undisclosed.example.com) https://pmip4.lsce.ipsl.fr/doku.php/wg:ptof:meetings?rev=1613029731&do=diff Past to Future - Meetings PMIP4 meetings Workshop at University College London (13-17th May 2019) This was a small workshop organised by the PMIP4 working group, which was imaginatively also called “Past2Future: insights from a constantly varying past text/html 2019-04-25T20:28:27+00:00 Anonymous (anonymous@undisclosed.example.com) https://pmip4.lsce.ipsl.fr/doku.php/wg:ptof:members?rev=1556224107&do=diff Past to Future - Members and Mailing list Mailing list * Mailing list address: <pmip-wg-p2fvar@lists.lsce.ipsl.fr> You can send attachments up to 1.5 Mb * Only the members of the list can send mails to the list (no risk of spam!). If you want to add somebody, send a mail to Julia Hargreaves, Chris Brierley text/html 2022-11-03T08:22:49+00:00 Anonymous (anonymous@undisclosed.example.com) https://pmip4.lsce.ipsl.fr/doku.php/wg:ptof:methods?rev=1667463769&do=diff Contact --- Julia Hargreaves 2013/04/26 06:53 to contribute to this page, or leave a comment in the discussion box. Introduction Climate models combine our understanding of different components the climate, gained largely from observation of processes in the modern climate. The models, designed and tuned to some extent to look like the modern climate, are then used to estimate future climate changes such as those caused by anthropogenic emission of greenhouse gases. The multi-model ensemble o… text/html 2022-10-03T14:39:16+00:00 Anonymous (anonymous@undisclosed.example.com) https://pmip4.lsce.ipsl.fr/doku.php/wg:ptof:models?rev=1664807956&do=diff What model runs might be relevant There are a lot of different model runs available as part of PMIP. In fact the amount of output can be a bit overwhelming at first. On important distinction is the different between *transient* and *equilibrium* simulations. All climate models are run forwards in time and write output every month/day. So this distinction really relates to the forcing inputs, and the climate response to them. From a practical perspective, you should be looking at the long-term s… text/html 2018-09-25T10:06:29+00:00 Anonymous (anonymous@undisclosed.example.com) https://pmip4.lsce.ipsl.fr/doku.php/wg:ptof:output?rev=1537869989&do=diff PMIP Model output There is a lot of model output available. Your decision about how to get the model results will depend quite a lot on what precisely you are after. Standard Diagnostics Other people are interested in these experiments as well, and could have already computed your diagnostics. This is extremely likely for the standard (DECK) experiments and future scenarios. There are several repositories where people are lodging these outputs. text/html 2022-11-03T08:22:36+00:00 Anonymous (anonymous@undisclosed.example.com) https://pmip4.lsce.ipsl.fr/doku.php/wg:ptof:papers?rev=1667463756&do=diff Some papers with a focus on using information from the past (or present) to improve predictions of future climate change Chronological by publication date, most recent first: An assessment of Earth's climate sensitivity using multiple lines of evidence text/html 2022-11-03T08:24:27+00:00 Anonymous (anonymous@undisclosed.example.com) https://pmip4.lsce.ipsl.fr/doku.php/wg:ptof:paperseval?rev=1667463867&do=diff Some papers with a focus on evaluating PMIP models Chronological by publication date, most recent first: A cloud feedback emulator (CFE, version 1.0) for an intermediate complexity model Ullman, D. J. and Schmittner, A. (2017) Geosci. Model Dev., 10, 945-958. text/html 2022-11-03T08:24:07+00:00 Anonymous (anonymous@undisclosed.example.com) https://pmip4.lsce.ipsl.fr/doku.php/wg:ptof:proposals_for_new_sensitivity_tests?rev=1667463847&do=diff Contact --- Julia Hargreaves 2013/04/26 06:53 to contribute to this page, or leave a comment in the discussion box. Experiments completed by at least 1 group * LGMGHG = Pre-industrial conditions with LGM greenhouse gases imposed - ~7 groups * LGMICE = Pre-industrial conditions with LGM ice sheet imposed - ~8 groups text/html 2019-05-21T22:42:05+00:00 Anonymous (anonymous@undisclosed.example.com) https://pmip4.lsce.ipsl.fr/doku.php/wg:ptof:uclworkshop?rev=1558478525&do=diff Past2Future: insights from a constantly varying past workshop University College London (13-17th May 2019) A small workshop organised on behalf of PMIP4, which we've imaginatively decided to also call “Past2Future: insights from a constantly varying past”. It will be focused on analysing the PMIP4/CMIP6 simulations and providing some preliminary multi-model, multi-period results on IPCC timescales. It will Hosted in London with Chris Brierley as the local organiser.