Impact model: JULES-ES-VN6P3

JULES model Earth System configuration based on the land-surface of UKESM1. JULES at vn6.3 and includes TRIP rivers, landuse, dynamic vegetation (TRIFFID - on a daily timestep) and the nitrogen cycle.

ISIMIP3b
ISIMIP3a

Person responsible for model simulations in this simulation round

Anna Bradley: anna.bradley@metoffice.gov.uk, 0009-0007-2942-085X, UK Met Office (UK)

Andrew Hartley: andrew.hartley@metoffice.gov.uk, 0000-0002-1905-9112, UK Met Office (UK)

Additional persons involved: Eleanor Burke (eleanor.burke@metoffice.gov.uk)

Output Data

Experiments: historical_histsoc_default, ssp126_2015soc-from-histsoc_default, ssp585_2015soc-from-histsoc_default, ssp370_2015soc-from-histsoc_default
Climate Drivers: GFDL-ESM4, IPSL-CM6A-LR, MPI-ESM1-2-HR, MRI-ESM2-0, UKESM1-0-LL
Date: 2024-06-17

Basic information

Model Version: 6.3

Model Output License: CC0

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.

Resolution

Spatial aggregation: regular grid

Horizontal resolution: 0.5°x0.5°

Vertically resolved: Yes

Number of vertical layers: Soil layers - 4 (0.1, 0.25, 0.65, 2.0m)

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: MRI-ESM2-0, IPSL-CM6A-LR, MPI-ESM1-2-HR, UKESM1-0-LL, GFDL-ESM4

Emissions data sets used: Atmospheric composition (ISIMIP3b)

Other human influences data sets used: Nitrogen deposition (ISIMIP3), Historical, gridded land use

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

Additional information about input variables: The rainfall was calculated from the difference between the total precipitation and snowfall

Spin-up

Was a spin-up performed?: Yes

Spin-up design: Length of spin up - 1850-1856 (repeating climate (number of times is unknown) until vegetation and soil carbon is stable) CO2 concentration - 1850-1856

Natural Vegetation

Natural vegetation partition: Plant functional types - 9 natural PFTs (tropical broadleaf evergreen trees (BET-Tr), temperate broadleaf evergreen trees (BET-Te), broadleaf deciduous trees (BDT), needleleaf evergreen trees (NET), needleleaf deciduous trees (NDT), C3 grasses (C3G), C4 grasses (C4G), evergreen shrubs (ESh) and deciduous shrubs (DSh)) and 4 managed PFTs (C3 and C4 crop and pasture (C3Cr, C4Cr, C3Pa and C4Pa)).

Natural vegetation dynamics: Height-based competition

Natural vegetation cover dataset: Not prescribed

Soil layers: Soil layers - 4 (thickness = 0.1, 0.25, 0.65, 2.0m)

Management & Adaptation Measures

Management: Land-use (crop and pasture prescribed for 2015)

Model set-up specifications

How do you simulate bioenergy? i.e. what pft do you simulate on bioenergy land?: None

How do you simulate the transition from cropland to bioenergy?: None

How do you simulate pasture (which pft)?: Pasture (prescribed from the ancillary)

Key model processes

Dynamic vegetation: Height-based competition

Nitrogen limitation: Yes, there is nitrogen limitation on the bio NPP and on the soil carbon decomposition

Co2 effects: CO2 fertilisation

Light interception: Yes

Light utilization: Yes

Phenology: Yes

Water stress: Yes, on photosynthesis

Heat stress: The photosynthesis depends on the air temperature

Differences in rooting depth: Yes - depends on PFT

Root distribution over depth: Yes - exponential

Closed energy balance: Yes

Coupling/feedback between soil moisture and surface temperature: Yes

Latent heat: Yes

Sensible heat: Yes

How do you compute soil organic carbon during land use (do you mix the previous pft soc into agricultural soc)?: We don't have tiled organic carbon

Do you separate soil organic carbon in pasture from natural grass?: No

Do you harvest npp of crops? do you including grazing? how does harvested npp decay?: Yes, we harvest NPP of crops. We don't include grazing.

How do you to treat biofuel npp and biofuel harvest?: No

Does non-harvested crop npp go to litter in your output?: Yes

Causes of mortality in vegetation models

Age/senescence: No

Fire: No

Drought: The plants will have a degree of stress due to low soil moisture content.

Insects: No

Storm: No

Stochastic random disturbance: Yes - the plants have a turn over rate

NBP components

Fire: No

Land-use change: Yes - we have a harvest flux, we have three wood product pools (fast decompoing, medium decomposing and slow decomposing)

Harvest: Yes, when we have land-use

Other processes: NPP and soil respiration

Species / Plant Functional Types (PFTs)

List of species / pfts: Plant functional types - 9 natural PFTs (tropical broadleaf evergreen trees (BET-Tr), temperate broadleaf evergreen trees (BET-Te), broadleaf deciduous trees (BDT), needleleaf evergreen trees (NET), needleleaf deciduous trees (NDT), C3 grasses (C3G), C4 grasses (C4G), evergreen shrubs (ESh) and deciduous shrubs (DSh)) and 4 managed PFTs (C3 and C4 crop and pasture (C3Cr, C4Cr, C3Pa and C4Pa)).

Model output specifications

Output format: Per grid-cell area

Output per pft?: Per unit area of that PFT

Considerations: You need to use a land-fraction mask for global totals

Land-use change implementation

Is crop harvest included? if so, how?: Yes, some proportion of NPP goes to harvest for the crop PFT

Is cropland soil management included? if so, how?: No

Is grass harvest included? if so, how?: No

Is shifting cultivation included?: No

Is wood harvest included? if so, how?: Yes - product pools (as above)

Which transition rules are applied to decide where agriculture is conducted?: We have a tile, and we don't have a specific area of that tile for agriculture.

Fire modules

Aggregation of reported burnt area: No fire

Person responsible for model simulations in this simulation round

Anna Bradley: anna.bradley@metoffice.gov.uk, 0009-0007-2942-085X, UK Met Office (UK)

Andrew Hartley: andrew.hartley@metoffice.gov.uk, 0000-0002-1905-9112, UK Met Office (UK)

Additional persons involved: Eleanor Burke (eleanor.burke@metoffice.gov.uk)

Output Data

Experiments: obsclim_histsoc_default, counterclim_1901soc_default, counterclim_histsoc_default, obsclim_histsoc_1901co2, obsclim_1901soc_1901co2, obsclim_1901soc_default
Climate Drivers: 20CRV3, 20CRV3-ERA5, 20CRV3-W5E5, GSWP3-W5E5
Date: 2023-08-09

Basic information

Model Version: 6.3

Model Output License: CC0

Model Homepage: http://jules-lsm.github.io/latest/index.html

Reference Paper: Main Reference: Mathison, C., Burke, E., Hartley, A. J., Kelley, D. I., Burton, C., Robertson, E., Gedney, N., Williams, K., Wiltshire, A., Ellis, R. J., Sellar, A. A., and Jones, C. D. et al. Description and evaluation of the JULES-ES set-up for ISIMIP2b. Geoscientific Model Development,16,4249-4264,2023

Resolution

Spatial aggregation: regular grid

Horizontal resolution: 0.5°x0.5°

Vertically resolved: Yes

Number of vertical layers: Soil Layers - 4 (0.1, 0.25, 0.65, 2.0m)

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

Observed atmospheric climate data sets used: GSWP3-W5E5 (ISIMIP3a), 20CRv3, 20CRv3-ERA5, 20CRv3-W5E5

Emissions data sets used: Atmospheric composition (ISIMIP3a)

Land use data sets used: Historical, gridded land use

Other human influences data sets used: Nitrogen deposition (ISIMIP3)

Other data sets used: Land-sea mask, Drainage direction map for river routing

Additional input data sets: Soil properties - HWSD

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

Spin-up

Was a spin-up performed?: Yes

Spin-up design: Length of spin up - 1801-1807 (repeating climate (number of times is unknown) until vegetation and soil carbon is stable) CO2 concentration - 1801-1807

Natural Vegetation

Natural vegetation dynamics: Height-based competition

Natural vegetation cover dataset: Not prescribed

Soil layers: Soil layers - 4 (thickness = 0.1, 0.25, 0.65, 2.0m)

Management & Adaptation Measures

Management: Land-use (crop and pasture prescribed)

Model set-up specifications

How do you simulate bioenergy? i.e. what pft do you simulate on bioenergy land?: none

How do you simulate the transition from cropland to bioenergy?: none

How do you simulate pasture (which pft)?: Pasture (prescribed from the ancillary)

Key model processes

Dynamic vegetation: Height competition

Nitrogen limitation: Yes, there is nitrogen limitation on the bio NPP and on the soil carbon decomposition

Co2 effects: CO2 fertilisation

Light interception: Yes

Light utilization: Yes

Phenology: Yes

Water stress: Yes, on photosynthesis

Heat stress: The photosynthesis depends on the air temperature

Differences in rooting depth: Yes - depends on PFT

Root distribution over depth: Yes - exponential

Closed energy balance: Yes

Coupling/feedback between soil moisture and surface temperature: Yes

Latent heat: Yes

Sensible heat: Yes

How do you compute soil organic carbon during land use (do you mix the previous pft soc into agricultural soc)?: We don't have tiled organic carbon

Do you separate soil organic carbon in pasture from natural grass?: No

Do you harvest npp of crops? do you including grazing? how does harvested npp decay?: Yes, we harvest NPP of crops. We don't include grazing.

How do you to treat biofuel npp and biofuel harvest?: No

Does non-harvested crop npp go to litter in your output?: Yes

Causes of mortality in vegetation models

Age/senescence: No

Fire: No

Drought: The plants will have a degree of stress due to low soil moisture content.

Insects: No

Storm: No

Stochastic random disturbance: Yes - the plants have a turn over rate

NBP components

Fire: No

Land-use change: Yes - we have a harvest flux, we have three wood product pools (fast decompoing, medium decomposing and slow decomposing)

Harvest: Yes, when we have land-use

Other processes: NPP and soil respiration

Species / Plant Functional Types (PFTs)

Model output specifications

Output format: Per grid-cell area

Output per pft?: Per unit area of that PFT

Considerations: You need to use a land-fraction mask for global totals

Land-use change implementation

Is crop harvest included? if so, how?: Yes, some proportion of NPP goes to harvest for the crop PFT

Is cropland soil management included? if so, how?: No

Is grass harvest included? if so, how?: No

Is shifting cultivation included?: No

Is wood harvest included? if so, how?: Yes - product pools (as above)

Which transition rules are applied to decide where agriculture is conducted?: We have a tile, and we don't have a specific area of that tile for agriculture.

Fire modules

Aggregation of reported burnt area: No fire