Impact model: JULES-W2

JULES-W2 (formerly JULES_W1) is one of the global models following the ISIMIP3a protocol contributing with simulations for the ISIMIP3a global water sector. JULES-W2 is the JULESvn6.2 of the community land surface model developed by a wide community of UK researchers, coordinated by UKMO and CEH. https://jules.jchmr.org/

Sector
Water (global)
Region
global

Information for the model JULES-W2 is provided for the simulation rounds shown in the tabs below. Click on the appropriate tab to get the information for the simulation round you are interested in.

Person responsible for model simulations in this simulation round
Aristeidis Koutroulis: akoutroulis@tuc.gr, 0000-0002-2999-7575, Technical University of Crete (Greece)
Additional persons involved: Aristeidis Koutroulis; Manolis Grillakis; Kostas Seiradakis
Output Data
Experiments: (*) obsclim_1901soc_default, obsclim_2015soc_1901co2, counterclim_1901soc_default, obsclim_2015soc_default, obsclim_histsoc_default, counterclim_2015soc_default, counterclim_histsoc_default, obsclim_histsoc_1901co2, obsclim_1901soc_1901co2
Climate Drivers: GSWP3-W5E5
Date: 2022-06-08
Basic information
Model Version: JULESvn6.2
Model Output License: CC0
Model Homepage: https://jules.jchmr.org/
Reference Paper: Main Reference: Best M, Pryor M, Clark D, Rooney G, Essery R, Ménard C, Edwards J, Hendry M, Porson A, Gedney N, Mercado L, Sitch S, Blyth E, Boucher O, Cox P, Grimmond C, Harding R et al. The Joint UK Land Environment Simulator (JULES), model description – Part 1: Energy and water fluxes. Geoscientific Model Development,4,677-699,2011
Reference Paper: Other References:
Resolution
Spatial Aggregation: regular grid
Spatial Resolution: 0.5’ x 0.5’
Temporal Resolution Of Input Data: Climate Variables: daily
Temporal Resolution Of Input Data: Co2: annual
Temporal Resolution Of Input Data: Land Use/Land Cover: annual
Temporal Resolution Of Input Data: Soil: constant
Input data sets used
Observed Atmospheric Climate Data Sets Used: GSWP3-W5E5 (ISIMIP3a)
Land Use Data Sets Used: Historical, gridded land use
Climate Variables: huss, tasmax, tas, tasmin, rlds, rsds, ps, pr
Exceptions to Protocol
Exceptions: River discharge is calculated with the built-in TRIP model, in which flow is routed with the “native JULES” river topography which is different to the DDM30.
Spin-up
Was A Spin-Up Performed?: Yes
Spin-Up Design: 10 spinup cycles (1801-1810), plus spinclim (1801-1900)
Natural Vegetation
Natural Vegetation Cover Dataset: time varying vegetation (13 types)
Soil Layers: 4 layers with thickness 0.1m; 0.25m; 0.65m; 2m
Management & Adaptation Measures
Management: Time varying land-use
Technological Progress
Technological Progress: No
Soil
Soil Layers: 4 layers with thickness 0.1m; 0.25m; 0.65m; 2m
Water Use
Water-Use Types: No water use
Water-Use Sectors: No water use
Routing
Runoff Routing: River discharge is calculated with the built-in TRIP model, in which flow is routed with the “native JULES” river topography which is different to the DDM30.
Routing Data: built-in TRIP model
Land Use
Land-Use Change Effects: Time varying land use based on ISIMIP3a protocol
Dams & Reservoirs
Dam And Reservoir Implementation: No
Vegetation
Is Co2 Fertilisation Accounted For?: True
How Is Vegetation Represented?: Fixed plant characteristics
Methods
Potential Evapotranspiration: Penman-Montheith
Snow Melt: Energy Balance