To achieve the Objectives 2025 the experimental work is clustered in 3 areas:

  1. Improve the current ecLand version by revising known model deficiencies (e.g. frozen soil runoff, dryland infiltration).
  2. Include missing processes related to irrigation preserving local water closure.
  3. Enhance hydrological coupling of inundated areas with atmospheric and soil water fluxes.


A revised soil permeability in presence of freezing is investigated via sensitivity experiments

NTypeExperimentResolutionTimeBranchLabelComments
1Surfaceivd5TCo3991980-2025pad_CY49R1.1_runoff_frozen_soilRUNOFF_FROZEN_SOIL

revised permeability limiting freezing shutdown to 50% of soil

2Surfaceivgk
TCo3991980-2025pad_CY49R1.1_runoff_frozen_soil_20RUNOFF_FROZEN_SOIL

revised permeability limiting freezing shutdown to 20% of soil

3Surfaceivgk
TCo3991980-2025pad_CY49R1_for_50R1_runoff_frozen_soil_top1mRUNOFF_FROZEN_SOIL

revised permeability limiting freezing shutdown to 50% of soil in the top 1m

Results file:///perm/pad/climsfc/49r1_shallow_lakes/plots/eval_mon.html indicate that 50% permeability in frozen soil condition can increase the overall soil water storage.

Experiment were reproduced in 50r1 cycle to benefit from the latest development (eg. glaciers).

NTypeExperimentResolutionTimeBranchLabelComments
1SurfaceivkrTCo3991980-2025pad_CY49R1_control_50R1_esuiteCONTROL4 Layers as in 49r1 Oper.
Minimum lake depth 2.0m
2SurfaceivnlTCo3991980-2025pad_CY49R1_for_50R1_runoff_frozen_soilRUNOFF_FROZEN_SOILrevised permeability limiting freezing shutdown to 50% of soil
3SurfaceivwfTCo1279+ERA52016-2025pad_CY49R1_control_50R1_esuiteCONTROLcontrol TCo1279 ERA5-forcing
4SurfaceivweTCo1279+ERA52016-2025pad_CY49R1_for_50R1_runoff_frozen_soilRUNOFF_FROZEN_SOILexp TCo1279 ERA-forcing
5SurfaceivxqTCo1279+Oper2016-2025pad_CY49R1_control_50R1_esuiteCONTROLcontrol TCo1279 OPER-forcing
6Surfaceiwa6TCo2559+Oper2016-2025pad_CY49R1_control_50R1_esuiteCONTROLcontrol TCo2559 OPER-forcing
7Surfaceivy0TCo1279+Oper2016-2025pad_CY49R1_for_50R1_runoff_frozen_soilRUNOFF_FROZEN_SOILexp TCo1279 OPER-forcing
8Surfaceiw60
TCo3991980-2025pad_CY49R1_for_50R1_runoff_frozen_soil_top1mRUNOFF_FROZEN_SOIL

revised permeability limiting freezing shutdown to 50% of soil in the top 1m

9Surfaceiwlp
TCo3991980-2025pad_CY49R1_for_50R1_runoff_frozen_soilRUNOFF_FROZEN_SOIL

revised permeability limiting freezing shutdown to column volume integral.


Here 2 tests to modify soil moisture and water partitioning:

NTypeExperimentResolutionTimeBranchLabelComments
1Surfaceivs4
TCo3991980-2025pad_CY49R1_for_50R1_hydro_cond_pwpDRYLANDTest limiter of the hydraulic conductivity at the permanent wilting point
2Surfaceivs4
TCo3991980-2025pad_CY49R1_for_50R1_hydro_cond_pwpOROG_RUNOFFTest limiter of the hydraulic conductivity at the permanent wilting point
3SurfaceiwarTCo2559+Oper2016-2025pad_CY49R1_for_50R1_runoff_frozen_soilRUNOFF_OROG

revised orographic runoff


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