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

​https://docs.google.com/spreadsheets/d/1iZ7F_KBu0kbY1iZ53fMW_QObwQf141kPkxpf6Zj5OvA/edit?usp=sharing

​https://docs.google.com/spreadsheets/d/1P0D7CIf6782coBppnRCybwfjcg4bkjVmUuqd81gPtWU/edit?usp=sharing

Message de Karl Taylor sur la normalisationn 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

climate scenarios from the ScenarioMIP; to be performed at a later stage

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 future
LMIP Tier2	A. Ducharne