Nitrogen Deposition Forcing Specifications¶

The Nitrogen deposition pipeline aggregates 4 atmospheric reactive nitrogen deposition flux species from CMIP7, converts units to $\text{g}\,\text{m}^{-2}\,\text{day}^{-1}$, regrids conservatively to the global.N96 grid, and outputs binary Unified Model ancillary files (.anc) for the CABLE / CASA-CNP terrestrial biogeochemistry scheme in ACCESS-ESM1.6.

Physical Domain & Scientific Scope¶

Species Aggregated (4 fluxes):
Dry deposition of reduced nitrogen (drynhx, $\text{NH}_x$)
Dry deposition of oxidized nitrogen (drynoy, $\text{NO}_y$)
Wet deposition of reduced nitrogen (wetnhx, $\text{NH}_x$)
Wet deposition of oxidized nitrogen (wetnoy, $\text{NO}_y$)
Total Deposition Calculation: $$\text{Flux}_{\text{total}} = \text{drynhx} + \text{drynoy} + \text{wetnhx} + \text{wetnoy}$$
Unit Conversion: Converted from standard CMIP7 flux units ($\text{kg}\,\text{m}^{-2}\,\text{s}^{-1}$) to Unified Model land biogeochemistry units ($\text{g}\,\text{m}^{-2}\,\text{day}^{-1}$) via: $$\text{Flux} \left[\text{g}\,\text{m}^{-2}\,\text{day}^{-1}\right] = \text{Flux} \left[\text{kg}\,\text{m}^{-2}\,\text{s}^{-1}\right] \times 1000.0 \times 86400.0$$
Target STASH Item: m01s00i884 (NITROGEN DEPOSITION).
Grid & Interpolation: Conservative area-weighted regridding (AreaWeighted(mdtol=0.5)) using esm_grid_mask_cube(args), with missing data filled to 0.0.

Provenance & Dataflow Architecture¶

The nitrogen deposition pipeline aggregates four distinct reactive nitrogen deposition species into a unified terrestrial biogeochemistry forcing, converting units, regridding onto the N96 grid, and packing via Mule. The pipeline separates by experiment: * Pre-Industrial Control (PI): Generates a 12-month perpetual cyclic ancillary (Ndep_1850_cmip7.anc). See Pre-Industrial Experiment Dataflow Architecture. * Historical (HI) & ScenarioMIP (SM): Generates continuous monthly multi-decadal time-series ancillaries (Ndep_1849_2023_cmip7.anc and scenario files extending to 2150). See Historical & ScenarioMIP Dataflow Architecture.

Controlling Suite Switches¶

The execution, experiment inclusion, and temporal extension for reactive nitrogen deposition are controlled by parameters in rose-suite.conf:

Master Activation Switch: ANCIL_CREATE_NITROGEN = true
When set to false, all nitrogen deposition processing tasks are excluded from the execution graph.
Experiment Activation: Governed by USE_EXP['PI'], USE_EXP['HI'], and USE_EXP['SM'].
Scenario Extension Controls (EXTEND_SM_NITROGEN):
Controls whether future projection pathways pass --ext to extend coverage through 2150:
- 'h': True (Extended to 2150, producing ${ESM_SM_EXT_NITROGEN_SAVE_FILENAME['h']})
- 'hl': True (Extended to 2150, producing ${ESM_SM_EXT_NITROGEN_SAVE_FILENAME['hl']})
- 'm': True (Extended to 2150, producing ${ESM_SM_EXT_NITROGEN_SAVE_FILENAME['m']})
- 'vl': True (Extended to 2150, producing ${ESM_SM_EXT_NITROGEN_SAVE_FILENAME['vl']})
Reference: See Suite Configuration & Parameters Reference for full object declarations.

1. Pre-Industrial Experiment (PI)¶

Dataflow Architecture¶

The pre-industrial nitrogen deposition workflow sums the four reactive nitrogen species for 1850, regrids conservatively to N96, and packages into a 12-month cyclic ancillary:

flowchart TD
    %% Custom Styles for W3C PROV Semantics
    classDef inputStyle fill:#e1f5fe,stroke:#0288d1,stroke-width:1.5px,color:#01579b
    classDef activityStyle fill:#e8f5e9,stroke:#2e7d32,stroke-width:1.5px,color:#1b5e20
    classDef outputStyle fill:#fff3e0,stroke:#e65100,stroke-width:1.5px,color:#bf360c
    classDef agentStyle fill:#f3e5f5,stroke:#7b1fa2,stroke-width:1.5px,color:#4a148c
    classDef targetStyle fill:#ede7f6,stroke:#4527a0,stroke-width:2px,color:#311b92

    %% Top Level: Inputs and Agents
    subgraph S_TOP["1. Source Inputs and Agents"]
        direction LR
        subgraph Inputs["Input Entities (prov:Entity)"]
            direction TB
            E1[("drynhx (1850 Dry reduced N)")]:::inputStyle
            E2[("drynoy (1850 Dry oxidized N)")]:::inputStyle
            E3[("wetnhx (1850 Wet reduced N)")]:::inputStyle
            E4[("wetnoy (1850 Wet oxidized N)")]:::inputStyle
            E_Mask[("Grid Mask<br><code>qrparm.mask (N96)</code>")]:::inputStyle
        end

        subgraph Agents["Agents (prov:Agent)"]
            direction TB
            AgCylc{{"Cylc 8 Suite Scheduler"}}:::agentStyle
            AgPy{{"esm1p6_ancil.nitrogen (Iris, Ants, Mule)"}}:::agentStyle
        end
    end

    %% Middle Level: Transformation Pipeline
    subgraph Activities["2. Transformation Pipeline (prov:Activity)"]
        direction TB
        A_Sum["Multi-Species Summation<br><i>Flux_total = drynhx + drynoy + wetnhx + wetnoy</i>"]:::activityStyle
        A_Unit["Unit Conversion<br><i>kg m-2 s-1 -> g m-2 day-1 (x 8.64e7)</i>"]:::activityStyle
        A_Regrid["Spatial Regridding<br><i>AreaWeighted(mdtol=0.5) to N96 and fillna(0.0)</i>"]:::activityStyle
        A_Mule["12-Month Cyclic Mule Packaging<br><i>STASH m01s00i884 | calendar=1 | 12 monthly slices</i>"]:::activityStyle
        A_Sum --> A_Unit --> A_Regrid --> A_Mule
    end

    %% Lower Level: Output Entities
    subgraph Outputs["3. Output Entities (prov:Entity)"]
        direction TB
        E_PI_Anc[("Pre-Industrial Ancillary<br><code>Ndep_1850_cmip7.anc (12-mo cyclic)</code>")]:::outputStyle
    end

    %% Bottom Level: Model Target
    subgraph S_DEPLOY["4. Downstream Deployment"]
        E_Model[["ACCESS-ESM1.6 Configs<br><code>ACCESS-NRI/access-esm1.6-configs (piControl)</code>"]]:::targetStyle
    end

    %% Relationships
    E1 & E2 & E3 & E4 -->|prov:used| A_Sum
    E_Mask -->|prov:used| A_Regrid
    A_Mule -->|prov:wasGeneratedBy| E_PI_Anc
    E_PI_Anc -->|staged for model execution| E_Model

    %% Agent Associations
    AgPy -.->|prov:wasAssociatedWith| A_Sum
    AgPy -.->|prov:wasAssociatedWith| A_Unit
    AgPy -.->|prov:wasAssociatedWith| A_Regrid
    AgPy -.->|prov:wasAssociatedWith| A_Mule
    AgCylc -.->|orchestrates| Activities

`PI_ancil_nitrogen`¶

1. Description & Purpose:
Generates cyclic 1850 monthly reactive nitrogen deposition ancillaries for the pre-industrial control run (${ESM_PI_NITROGEN_SAVE_FILENAME} / Ndep_1850_cmip7.anc).

2. CLI Arguments Passed:

python -m esm1p6_ancil.nitrogen.cmip7_PI_nitrogen_generate \
    --ancil-target-dirname "${VAR.ANCIL_TARGET_PATH}" \
    # Current: "/g/data/${PROJECT}/${USER}/CMIP7/esm1p6_ancil/$(isodatetime -f CCYY.MM.DD)"
    --cmip7-source-data-dirname "${VAR.CMIP7_SOURCE_PATH}" \
    # Current: "/g/data/qv56/replicas/input4MIPs/CMIP7"
    --esm15-inputs-dirname "${VAR.ESM15_INPUTS_PATH}" \
    # Current: "/g/data/vk83/configurations/inputs/access-esm1p5"
    --esm-grid-rel-dirname "${ESM_GRID_DIRNAME}" \
    # Current: "global.N96"
    --esm15-grid-version "${ESM15_GRID_VERSION}" \
    # Current: "2020.05.19"
    --dataset-version "${CMIP7_NITROGEN_VERSION}" \
    # Current: "FZJ-CMIP-nitrogen-1-2"
    --dataset-vdate "${CMIP7_NITROGEN_VDATE}" \
    # Current: "v20251025"
    --dataset-date-range "${CMIP7_PI_NITROGEN_DATE_RANGE}" \
    # Current: "185001-185012"
    --save-filename "${ESM_PI_NITROGEN_SAVE_FILENAME}"
    # Current: "Ndep_1850_cmip7.anc"

3. Input4MIPs Versions & Temporal Metadata:
- Dataset Version: ${CMIP7_NITROGEN_VERSION} (FZJ-CMIP-nitrogen-1-2)
- Version Date (vdate): ${CMIP7_NITROGEN_VDATE} (v20251025)
- Input Date Range: ${CMIP7_PI_NITROGEN_DATE_RANGE} (185001-185012, 12 monthly slices)
4. Input4MIPs Directory Path & Filenames:
- Directory Path: ${VAR.CMIP7_SOURCE_PATH}/CMIP/FZJ/${CMIP7_NITROGEN_VERSION}/atmos/mon/{species}/gn/${CMIP7_NITROGEN_VDATE}/
  (Evaluated: /g/data/qv56/replicas/input4MIPs/CMIP7/CMIP/FZJ/FZJ-CMIP-nitrogen-1-2/atmos/mon/{species}/gn/v20251025/)
- Filenames (4 species): {species}_input4MIPs_surfaceFluxes_CMIP_${CMIP7_NITROGEN_VERSION}_gn_${CMIP7_PI_NITROGEN_DATE_RANGE}.nc
5. Python Scripts & Functions:
- Main Script / Entrypoint: esm1p6_ancil.nitrogen.cmip7_PI_nitrogen_generate
- Key Functions Called: load_cmip7_nitrogen, regrid_cmip7_nitrogen, save_cmip7_nitrogen, fix_coords, esm_grid_mask_cube, save_ancil
- Shared Libraries: iris, mule, ants, numpy
6. Function-Level Cube Transformations & Constraints:
- Input Cubes & Coordinates: Four 3D NetCDF cubes loaded into an iris.cube.CubeList representing drynhx, drynoy, wetnhx, and wetnoy on monthly time points.
- Constraints Applied: Name constraints corresponding to standard CF names for nitrogen fluxes; attributes equalized via equalise_attributes(nitrogen_cubes).
- Coordinate Bounds & Manipulation:
  - Cubes summed elementwise into a total flux cube.
  - Units converted from kg m-2 s-1 to g m-2 day-1 via cube_tot.convert_units("g m-2 day-1").
  - Coordinates standardized via fix_coords(args, cube).
  - Regridded to global.N96 using AreaWeighted(mdtol=0.5) against esm_grid_mask_cube(args).
  - Missing values masked and zeroed (data.filled(0.0)).
  - STASH attribute assigned: m01s00i884.
- Created / Output Cubes: Formats final 3D cube (time: 12, lat: 144, lon: 192) passed to save_ancil.
7. Produced File Versions & Date Ranges:
- Temporal Coverage: 185001-185012 (12 monthly slices)
- Calendar: 365-day (NoLeap) calendar alignment
- STASH Code: m01s00i884
8. Produced File Directory Paths & Filenames:
- Output Directory: ${VAR.ANCIL_TARGET_PATH}/modern/pre-industrial/atmosphere/nitrogen/${ESM_GRID_DIRNAME}/<ANCIL_TODAY>/
- Output Filename: ${ESM_PI_NITROGEN_SAVE_FILENAME} (Ndep_1850_cmip7.anc)
9. Namelist File & Variable Updates:
None (Generates binary ancillary .anc file).

2. Historical Experiment (HI)¶

Dataflow Architecture¶

The historical and ScenarioMIP nitrogen deposition pipelines sum multi-decadal flux fields across all 4 species, regrid to N96, and package continuous monthly time-series ancillaries:

flowchart TD
    %% Custom Styles for W3C PROV Semantics
    classDef inputStyle fill:#e1f5fe,stroke:#0288d1,stroke-width:1.5px,color:#01579b
    classDef activityStyle fill:#e8f5e9,stroke:#2e7d32,stroke-width:1.5px,color:#1b5e20
    classDef outputStyle fill:#fff3e0,stroke:#e65100,stroke-width:1.5px,color:#bf360c
    classDef agentStyle fill:#f3e5f5,stroke:#7b1fa2,stroke-width:1.5px,color:#4a148c
    classDef targetStyle fill:#ede7f6,stroke:#4527a0,stroke-width:2px,color:#311b92

    %% Top Level: Inputs and Agents
    subgraph S_TOP["1. Source Inputs and Agents"]
        direction LR
        subgraph Inputs["Input Entities (prov:Entity)"]
            direction TB
            E_HI_N[("Historical CEDS NetCDFs<br><code>4 species (1849-2023)</code>")]:::inputStyle
            E_SM_N[("ScenarioMIP CEDS NetCDFs<br><code>4 species (2022-2150)</code>")]:::inputStyle
            E_Mask[("Grid Mask<br><code>qrparm.mask (N96)</code>")]:::inputStyle
        end

        subgraph Agents["Agents (prov:Agent)"]
            direction TB
            AgCylc{{"Cylc 8 Suite Scheduler"}}:::agentStyle
            AgPy{{"esm1p6_ancil.nitrogen (Iris, Ants, Mule)"}}:::agentStyle
        end
    end

    %% Middle Level: Transformation Pipeline
    subgraph Activities["2. Transformation Pipeline (prov:Activity)"]
        direction TB
        A_Sum["Multi-Species Summation<br><i>Flux_total = drynhx + drynoy + wetnhx + wetnoy</i>"]:::activityStyle
        A_Unit["Unit Conversion<br><i>kg m-2 s-1 -> g m-2 day-1 (x 8.64e7)</i>"]:::activityStyle
        A_Regrid["Spatial Regridding<br><i>AreaWeighted(mdtol=0.5) to N96 and fillna(0.0)</i>"]:::activityStyle
        A_Mule["Time-Series Mule Packaging<br><i>STASH m01s00i884 | continuous monthly slices</i>"]:::activityStyle
        A_Sum --> A_Unit --> A_Regrid --> A_Mule
    end

    %% Lower Level: Output Entities
    subgraph Outputs["3. Output Entities (prov:Entity)"]
        direction TB
        E_HI_Anc[("Historical Ancillary<br><code>Ndep_1849_2023_cmip7.anc</code>")]:::outputStyle
        E_SM_Anc[("ScenarioMIP Ancillaries<br><code>Ndep_SCEN_*.anc (to 2150)</code>")]:::outputStyle
    end

    %% Bottom Level: Model Target
    subgraph S_DEPLOY["4. Downstream Deployment"]
        E_Model[["Model Modern Configurations<br><code>modern/{historical,scen7-*}/atmosphere/nitrogen/</code>"]]:::targetStyle
    end

    %% Relationships
    E_HI_N & E_SM_N -->|prov:used| A_Sum
    E_Mask -->|prov:used| A_Regrid
    A_Mule -->|prov:wasGeneratedBy| E_HI_Anc & E_SM_Anc
    E_HI_Anc & E_SM_Anc -->|staged for model execution| E_Model

    %% Agent Associations
    AgPy -.->|prov:wasAssociatedWith| A_Sum
    AgPy -.->|prov:wasAssociatedWith| A_Unit
    AgPy -.->|prov:wasAssociatedWith| A_Regrid
    AgPy -.->|prov:wasAssociatedWith| A_Mule
    AgCylc -.->|orchestrates| Activities

`HI_ancil_nitrogen`¶

1. Description & Purpose:
Ingests monthly time-series nitrogen deposition fluxes from 1850 to 2022, pads timeline to span 1849–2023 for model spin-up/spin-down boundary compliance, regrids to N96, and produces ${ESM_HI_NITROGEN_SAVE_FILENAME} (Ndep_1849_2023_cmip7.anc).

2. CLI Arguments Passed:

python -m esm1p6_ancil.nitrogen.cmip7_HI_nitrogen_generate \
    --ancil-target-dirname "${VAR.ANCIL_TARGET_PATH}" \
    # Current: "/g/data/${PROJECT}/${USER}/CMIP7/esm1p6_ancil/$(isodatetime -f CCYY.MM.DD)"
    --cmip7-source-data-dirname "${VAR.CMIP7_SOURCE_PATH}" \
    # Current: "/g/data/qv56/replicas/input4MIPs/CMIP7"
    --esm15-inputs-dirname "${VAR.ESM15_INPUTS_PATH}" \
    # Current: "/g/data/vk83/configurations/inputs/access-esm1p5"
    --esm-grid-rel-dirname "${ESM_GRID_DIRNAME}" \
    # Current: "global.N96"
    --esm15-grid-version "${ESM15_GRID_VERSION}" \
    # Current: "2020.05.19"
    --dataset-version "${CMIP7_NITROGEN_VERSION}" \
    # Current: "FZJ-CMIP-nitrogen-1-2"
    --dataset-vdate "${CMIP7_NITROGEN_VDATE}" \
    # Current: "v20251025"
    --dataset-date-range "${CMIP7_HI_NITROGEN_DATE_RANGE}" \
    # Current: "185001-202212"
    --save-filename "${ESM_HI_NITROGEN_SAVE_FILENAME}"
    # Current: "Ndep_1849_2023_cmip7.anc"

3. Input4MIPs Versions & Temporal Metadata:
- Dataset Version: ${CMIP7_NITROGEN_VERSION} (FZJ-CMIP-nitrogen-1-2), ${CMIP7_NITROGEN_VDATE} (v20251025), Range: ${CMIP7_HI_NITROGEN_DATE_RANGE} (185001-202212).
- Processed Model Timeline: 184901-202312 (175 years, 2100 monthly slices).
4. Input4MIPs Directory Path & Filenames:
- Path: ${VAR.CMIP7_SOURCE_PATH}/CMIP/FZJ/${CMIP7_NITROGEN_VERSION}/atmos/mon/{species}/gn/${CMIP7_NITROGEN_VDATE}/
  (Evaluated: /g/data/qv56/replicas/input4MIPs/CMIP7/CMIP/FZJ/FZJ-CMIP-nitrogen-1-2/atmos/mon/{species}/gn/v20251025/)
- Filenames: {species}_input4MIPs_surfaceFluxes_CMIP_${CMIP7_NITROGEN_VERSION}_gn_${CMIP7_HI_NITROGEN_DATE_RANGE}.nc
5. Python Scripts & Functions: esm1p6_ancil.nitrogen.cmip7_HI_nitrogen_generate, load_cmip7_nitrogen, regrid_cmip7_nitrogen, extend_years, save_cmip7_nitrogen.
6. Cube Transformations:
- Aggregates 4 species, converts units to g m-2 day-1.
- Prepends 1849 (repeating 1850) and appends 2023 (repeating 2022) via extend_years to satisfy UM padding requirements.
- Regrids to N96 (AreaWeighted(mdtol=0.5)) and sets STASH m01s00i884.
7. Produced File: ${ESM_HI_NITROGEN_SAVE_FILENAME} (Ndep_1849_2023_cmip7.anc, 2100 monthly slices, 1849–2023).
8. Destination Path: ${VAR.ANCIL_TARGET_PATH}/modern/historical/atmosphere/nitrogen/${ESM_GRID_DIRNAME}/<DATE>/${ESM_HI_NITROGEN_SAVE_FILENAME}.
9. Namelist Updates: None (Generates binary ancillary .anc file).

3. ScenarioMIP Experiment (SM)¶

[!NOTE] Dataflow Architecture: ScenarioMIP reactive nitrogen deposition processing follows the same time-series dataflow architecture as the Historical Experiment (HI).

`SM_{h,hl,m,vl}_ancil_nitrogen`¶

Scenario h (High)Scenario hl (High-Low)Scenario m (Medium)Scenario vl (Very Low)

1. Description & Purpose: Generates future projection nitrogen deposition ancillaries for scenario h. When EXTEND_SM_NITROGEN['h'] is active (--ext), extends 2022–2100 data to 2150 by tiling the final year (2100) or applying pathway extensions, saving ${ESM_SM_EXT_NITROGEN_SAVE_FILENAME['h']} (Ndep_h_2022_2150_cmip7.anc).

2. CLI Arguments Passed:

python -m esm1p6_ancil.nitrogen.cmip7_SM_nitrogen_generate \
    --scenario "${SCEN}" \
    # Current: "h"
    --ancil-target-dirname "${VAR.ANCIL_TARGET_PATH}" \
    # Current: "/g/data/${PROJECT}/${USER}/CMIP7/esm1p6_ancil/$(isodatetime -f CCYY.MM.DD)"
    --cmip7-source-data-dirname "${VAR.CMIP7_SOURCE_PATH}" \
    # Current: "/g/data/qv56/replicas/input4MIPs/CMIP7"
    --esm15-inputs-dirname "${VAR.ESM15_INPUTS_PATH}" \
    # Current: "/g/data/vk83/configurations/inputs/access-esm1p5"
    --esm-grid-rel-dirname "${ESM_GRID_DIRNAME}" \
    # Current: "global.N96"
    --esm15-grid-version "${ESM15_GRID_VERSION}" \
    # Current: "2020.05.19"
    --dataset-version "${CMIP7_SM_NITROGEN_VERSION[SCEN]}" \
    # Current: "FZJ-CMIP-nitrogen-h-1-0"
    --dataset-vdate "${CMIP7_SM_NITROGEN_VDATE[SCEN]}" \
    # Current: "v20260409"
    --dataset-date-range "${CMIP7_SM_NITROGEN_DATE_RANGE}" \
    # Current: "202201-210012"
    --ext \
    --save-filename "${ESM_SM_EXT_NITROGEN_SAVE_FILENAME[SCEN]}"
    # Current: "Ndep_h_2022_2150_cmip7.anc"

3. Input4MIPs Versions & Temporal Metadata:
- Version: ${CMIP7_SM_NITROGEN_VERSION['h']} (FZJ-CMIP-nitrogen-h-1-0), ${CMIP7_SM_NITROGEN_VDATE['h']} (v20260409), Range: ${CMIP7_SM_NITROGEN_DATE_RANGE} (202201-210012).
- Target Coverage: 2022-2150 (1548 monthly slices).
4. Input4MIPs Directory Path & Filenames:
- ${VAR.CMIP7_SOURCE_PATH}/ScenarioMIP/FZJ/${CMIP7_SM_NITROGEN_VERSION['h']}/atmos/mon/{species}/gn/${CMIP7_SM_NITROGEN_VDATE['h']}/{species}_input4MIPs_surfaceFluxes_ScenarioMIP_${CMIP7_SM_NITROGEN_VERSION['h']}_gn_${CMIP7_SM_NITROGEN_DATE_RANGE}.nc
5. Scripts & Functions: esm1p6_ancil.nitrogen.cmip7_SM_nitrogen_generate, load_cmip7_sm_nitrogen, regrid_cmip7_nitrogen, extend_years, save_cmip7_nitrogen.
6. Cube Transformations: Aggregates 4 nitrogen species, converts units, extends time axis to 2150 via extend_years, regrids conservatively to N96, and attaches STASH item 884.
7. Produced File: ${ESM_SM_EXT_NITROGEN_SAVE_FILENAME['h']} (Ndep_h_2022_2150_cmip7.anc, 1548 monthly slices, 2022–2150).
8. Destination Path: ${VAR.ANCIL_TARGET_PATH}/modern/scen7-h/atmosphere/nitrogen/${ESM_GRID_DIRNAME}/<DATE>/${ESM_SM_EXT_NITROGEN_SAVE_FILENAME['h']}.
9. Namelist Updates: None (Generates binary ancillary .anc file).

Dataset: ${CMIP7_SM_NITROGEN_VERSION['hl']} (FZJ-CMIP-nitrogen-hl-1-0), ${CMIP7_SM_NITROGEN_VDATE['hl']} (v20260706), ${CMIP7_SM_NITROGEN_DATE_RANGE} (202201-210012).
Produces: ${ESM_SM_EXT_NITROGEN_SAVE_FILENAME['hl']} (Ndep_hl_2022_2150_cmip7.anc, STASH 884, extended via EXTEND_SM_NITROGEN['hl'] == True).

Dataset: ${CMIP7_SM_NITROGEN_VERSION['m']} (FZJ-CMIP-nitrogen-m-1-0), ${CMIP7_SM_NITROGEN_VDATE['m']} (v20260706), ${CMIP7_SM_NITROGEN_DATE_RANGE} (202201-210012).
Produces: ${ESM_SM_EXT_NITROGEN_SAVE_FILENAME['m']} (Ndep_m_2022_2150_cmip7.anc, STASH 884, extended via EXTEND_SM_NITROGEN['m'] == True).

Dataset: ${CMIP7_SM_NITROGEN_VERSION['vl']} (FZJ-CMIP-nitrogen-vl-1-0), ${CMIP7_SM_NITROGEN_VDATE['vl']} (v20260409), ${CMIP7_SM_NITROGEN_DATE_RANGE} (202201-210012).
Produces: ${ESM_SM_EXT_NITROGEN_SAVE_FILENAME['vl']} (Ndep_vl_2022_2150_cmip7.anc, STASH 884, extended via EXTEND_SM_NITROGEN['vl'] == True).

Nitrogen Deposition Forcing Specifications¶

Physical Domain & Scientific Scope¶

Provenance & Dataflow Architecture¶

Controlling Suite Switches¶

1. Pre-Industrial Experiment (PI)¶

Dataflow Architecture¶

PI_ancil_nitrogen¶

2. Historical Experiment (HI)¶

Dataflow Architecture¶

HI_ancil_nitrogen¶

3. ScenarioMIP Experiment (SM)¶

SM_{h,hl,m,vl}_ancil_nitrogen¶

`PI_ancil_nitrogen`¶

`HI_ancil_nitrogen`¶

`SM_{h,hl,m,vl}_ancil_nitrogen`¶