Impact model: JULES-ES-55

JULES model using the Earth System configuration based on the land-surface of UKESM1. JULES at vn5.5 and includes TRIP rivers, landuse, dynamic vegetation (TRIFFID - using a daily timestep) and the nitrogen cycle.

ISIMIP2b

Person responsible for model simulations in this simulation round

Camilla Mathison: camilla.mathison@metoffice.gov.uk, 0000-0002-6269-4605, UK Met Office (UK)

Output Data

Experiments: VI, VII
Climate Drivers: None
Date: 2021-03-16

Basic information

Model Version: 5.5

Model Output License: CC BY 4.0

Model Homepage: https://code.metoffice.gov.uk/trac/jules

Model License: JULES is available to anyone for non-commercial use, free of charge. Note the JULES licence conditions, the JULES Fair Use and Publication Policy and the MOSRS user terms and conditions.

Simulation Round Specific Description: Paper on UKESM1 which includes the Earth System configuration of JULES used in these simulations. https://agupubs.onlinelibrary.wiley.com/doi/full/10.1029/2019MS001739

Resolution

Spatial aggregation: regular grid

Horizontal resolution: 0.5°x0.5°

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

Simulated atmospheric climate data sets used: IPSL-CM5A-LR, HadGEM2-ES, GFDL-ESM2M, MIROC5

Emissions data sets used: CO2 concentration

Land use data sets used: Future land-use patterns

Other human influences data sets used: Nitrogen deposition

Other data sets used: Land-sea mask

Additional input data sets: TRIP river ancillary.

Climate variables: huss, sfcWind, tasmax, tas, tasmin, rlds, rsds, ps, pr

Additional information about input variables: tasmax and tasmin used to calculate tas_range, which is input into the model.

Spin-up

Was a spin-up performed?: Yes

Spin-up design: 500 spinup cycles of 20 years starting from 1861 CO2 concentrations.

Natural Vegetation

Natural vegetation partition: JULES uses a fraction file that specifies where the natural vegetation pfts occur.

Natural vegetation dynamics: TRIFFID dynamics allow competed vegetation to change the landcover.

Management & Adaptation Measures

Management: Crops and pastures are defined from by ISIMIP2b inputs.

Soil

Soil layers: 4 soil layers at 01,0.25,0.65 and 2m

Routing

Runoff routing: TRIP routing model

Routing data: TRIP

Dams & Reservoirs

Dam and reservoir implementation: N/A

Calibration

Was the model calibrated?: No

Vegetation

Is co2 fertilisation accounted for?: Yes

How is vegetation represented?: TRIFFID