wiki:DevelopmentActivities/CMIP6/LS3MIP

Version 14 (modified by aducharne, 7 years ago) (diff)

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Model Developments

Documentation

Source Code

Reference Simulations

Group Activities & Contact

LS3MIP reference paper

van den Hurk, Kim, Krinner, Seneviratne, Derksen, Oki, Douville, Colin, Ducharne, Cheruy, Puma, Wada, Li, Jia, Alessandri, Lawrence, Weedon, Ellis, Hagemann, Mao, Flanner, Zampieri, Law (2016). The Land Surface, Snow and Soil moisture Model Intercomparison Program (LS3MIP): aims, set-up and expected outcome. GMD, 9, 2809-2832. GMD link

LS3MIP subactivities with points of contact in the ORCHIDEE group

  • LS3MIP Coordination: Gerhard Krinner
  • LMIP forced simulations: Agnès Ducharne
  • LFMIP coupled simulations: Frédérique Cheruy
  • ESM-SnowMIP: Gerhard Krinner
  • Soil-Parameter MIP (based on LMIP, coordinated by M. Cuntz and A. Verhoef): A. Ducharne, with C. Ottlé, J. Polcher, F. Wang
  • Snow SW radiative effect (coordinated by Mark Flanner): Gerhard Krinner

Output variables for LS3MIP/CMIP6

Initiated by Olivier Boucher, and followed by Frédérique Cheruy (obsolete):

New xls files transmitted by O. Boucher on February 14, 2017, based on the Data Request center:

Message de Karl Taylor sur la normalisation des variables:

All variables are considered to be in a "Category A" except the following Category B variables, which are either:

  • intensive in area and quantify the area of a particular type (e.g., sea_ice_area_fraction), or
  • extensive in area (e.g., sea_ice_volume, sea_ice_mass)

The time mean of category A variable is calculated as follows:

Amean = sum_over_time (f_n * H_n) / sum_over_time (f_n)

where n is a time sample and f is the fraction of the cell where H exists. For category B:

Bmean = sum_over_time H_n / N

where N is the number of time samples.

Note that when H exists over the entire grid cell (i.e., isn't restricted to a portion of the cell), f_n = 1, and Amean = Bmean.

For the cases you mentioned in your email:

  • albedo over snow-covered surface: we will need to confirm, but this would be a category B variable defined only over the portion of the cell with snow.
  • LAI: Since it is an index it might be defined even over the ocean, but we need to check.

Calendar

Still not well defined, but simulations likely due during the first semester of 2017

List of simulations

Experiment ID Experiment design Config LOA Start End Nb. ens. Comments MIP and Tier ORCHIDEE PI
Land-Hist Land only, GWP3 forcing L 1850 2014 1 LMIP Tier1 A. Ducharne
Land-Hist-cruNcep Land only, CRU-NCEP forcing L 1901 2014 1 LMIP Tier2 A. Ducharne
Land-Hist-princeton Land only, PGF forcing L 1901 2014 1 LMIP Tier2 A. Ducharne
Land-Hist-wfdei Land only, WFDEI forcing L 1901 2014 1 LMIP Tier2 A. Ducharne
Land-Future Land only L 2015 2100 6 Forcing based on at least 2 future climate scenarios from the ScenarioMIP; to be performed at a later stage LMIP Tier2 A. Ducharne
SP-MIP-Exp2 Land only, GWP3 forcing L 1900 2014 1 Soil parameters for all land points given by SP-MIP; some development required A. Ducharne
SP-MIP-Exp3 Land only, GWP3 forcing L 1900 2014 1 Soil textural properties provided by SP-MIP on all land points; straightforward A. Ducharne
SP-MIP-Exp4-6 Land only, GWP3 forcing L 1900 2014 3 3 times uniform soil parameters for the whole globe given by SP-MIP; straightforward A. Ducharne