Grid list

In this document:
Basal Area Light grid
Carbon Value grid
Dispersed Seeds grid
Gap Light grid
GLI Map grid
Harvest Results grid
Merchantable Timber Value grid
Mortality Episode Results grid
NZ Substrate grid
NZ Substrate calcs grid
Planting Results grid
Quadrat GLI grid
Resource grid
Seed Predators grid
Storm Damage grid
Storm Light grid
Storm Susceptibility grid
Substrate calcs grid
Substrate Favorability grid
Substrate grid
Windstorm Results grid

For more on what grids are, see Grids.

Harvest Results

This grid is created by the Harvest behavior. This is where data on harvest results is stored. The data is stored raw - no conversion to per-hectare amounts.

The grid cell resolution is set to 8 m X 8 m. You cannot change the grid cell resolution for this grid.

Data in the grid

Data member nameDescription
Harvest TypeType of harvest that occurred in the current timestep, or -1 if none has occurred
Cut Density, species x, cut range yNumber of trees cut in the current timestep for the given species and cut range
Cut Basal Area, species x, cut range yTotal basal area cut in the current timestep for the given species and cut range

Mortality Episode Results

This grid is created by the Episodic Mortality behavior. This is where data on planned mortality episode results is stored. The data is stored raw - no conversion to per-hectare amounts.

The grid cell resolution is set to 8 m X 8 m. You cannot change the grid cell resolution for this grid.

Data in the grid

Data member nameDescription
Cut Density, species x, cut range yNumber of trees killed in the current timestep for the given species and cut range
Cut Basal Area, species x, cut range yTotal basal area killed in the current timestep for the given species and cut range

Storm Damage

This grid is created by the Storm disturbance behavior. Each grid cell holds a storm damage index between 0 and 1. The grid resolution default is 8 m X 8 m. You can change this to whatever you wish, but if you are also using the grid Storm Susceptibility, the resolutions must match.

Data in the grid

Data member nameDescription
Damage IndexA storm damage index for all storms occurring in the past timestep, from 0 (no damage) to 1 (total damage)
Time Since Last StormThe number of years since the last storm occurred in this cell. The last storm is any storm at all of any strength.

Storm Susceptibility

This grid is created by the Storm disturbance behavior. Each grid cell holds a storm susceptibility index between 0 and 1. The grid resolution default is 8 m X 8 m. You can change this to whatever you wish, but if you are also using the grid Storm Damage, the resolutions must match.

Data in the grid

Data member nameDescription
SusceptibilityA storm damage susceptibility for each cell, from 0 (not susceptible to damage) to >1 (very susceptible to damage)

Quadrat GLI

This grid is created by the Quadrat-based GLI Light behavior. The grid holds a GLI value in each cell ("quadrat" being a term previously used in SORTIE to describe small grid cells). The grid cell resolution defaults to 2 m X 2 m. You can set whatever new resolution you wish.

Data in the grid

Data member nameDescription
GLIGLI value, or -1 if there were no trees to which to assign a GLI value in that grid cell

Gap Light

This grid is created by the Gap Light behavior. Each grid cell holds the cell's gap status, either TRUE or FALSE. The grid cell resolution defaults to 8 m X 8 m. You can set whatever new resolution you wish.

Data in the grid

Data member nameDescription
Is GapWhether (TRUE) or not (FALSE) that grid cell has gap status

Storm Light

This grid is created by the Storm Light behavior. Each grid cell holds a light level value. The grid cell resolution defaults to 8 m X 8 m. You can set whatever new resolution you wish.

Data in the grid

Data member nameDescription
LightThe light level as calculated by the Storm Light behavior

Basal Area Light

This grid is created by the Basal Area Light behavior. Each grid cell holds tree basal area data and a light level. The grid cell resolution defaults to 8 m X 8 m. You can set whatever new resolution you wish.

Data in the grid

Data member nameDescription
LightThe light level as calculated by the Basal Area Light behavior
Conifer Basal AreaThe basal area, in square meters, of conifers that count towards the light calculation
Angiosperm Basal AreaThe basal area, in square meters, of angiosperms that count towards the light calculation

GLI Map

This grid is created by the GLI Map Creator behavior. The grid holds a GLI value in each cell. The grid cell resolution defaults to 8 m X 8 m. You can set whatever new resolution you wish.

Data in the grid

Data member nameDescription
GLIGLI value, as a percentage of full sun between 0 and 100

Resource

This grid holds values for a second growth resource for use by the Double resource relative growth and Growth and Resource-Based Mortality behaviors. The actual identity of the resource is unknown and unimportant. The grid holds a value for resource level in each cell and it is assumed that the units scale appropriately to the parameters for the growth behavior. The grid cell resolution defaults to 8 m X 8 m. You can set whatever new resolution you wish.

Data in the grid

Data member nameDescription
ResourceResource amount, in whatever units are appropriate

Substrate

This grid is created by the Substrate behavior. The grid holds the relative proportions of the various substrate types. If the Harvest behavior is present for the run, then this grid's resolution must match the Harvest Results grid. Otherwise, it defaults to a cell resolution of 8 m X 8 m, which you can change. This grid holds packages with a different data structure from the main grid to track Substrate cohorts.

Data in the grid

Data member nameDescription
Proportion of scarified soilThe proportion of the grid cell area that is scarified soil
Proportion of forest floorThe proportion of the grid cell area that is forest floor
Proportion of tip-up moundsThe proportion of the grid cell area that is tip-up mounds
Proportion of fresh logsThe proportion of the grid cell area that is fresh logs
Proportion of decayed logsThe proportion of the grid cell area that is decayed logs

Packages:
Data member nameDescription
Substrate cohort ageThe age of the substrate cohort, in timesteps
Substrate cohort new scarified soil substrateThe proportion of cell area that is scarified soil added in this cohort
Substrate cohort new tip-up mounds substrateThe proportion of cell area that is tip-up mounds substrate added in this cohort
Substrate cohort new fresh logsThe proportion of cell area that is fresh logs added in this cohort

Substrate calcs

This grid is called "substratecalcs" and is created by the Substrate behavior. This grid is used for intermediate calculations when calculating the values in the Substrate grid. The grid cell resolution must match Substrate's.

Data in the grid

Data member nameDescription
Amount of new tip-up moundsNew tip-up mounds area by grid cell, in square meters
Fresh logs X timesteps agoFresh logs added X timesteps ago up to the value in the Substrate parameter "Maximum number of years that decay occurs" (converted to timesteps), as a proportion of grid cell area

NZ Substrate

This grid is created by the NZ Substrate behavior. The grid holds the relative proportions of the various substrate types. This grid defaults to a cell resolution of 8 m X 8 m, which you can change. This grid holds packages with a different data structure from the main grid to track Substrate cohorts.

Data in the grid

Data member nameDescription
Proportion of mossThe proportion of the grid cell area that is moss
Proportion of litterThe proportion of the grid cell area that is litter
Proportion of tip-up moundsThe proportion of the grid cell area that is tip-up mounds
Proportion of fresh logsThe proportion of the grid cell area that is fresh logs
Proportion of decayed logsThe proportion of the grid cell area that is decayed logs

Packages:
Data member nameDescription
Substrate cohort ageThe age of the substrate cohort, in timesteps
Substrate cohort new fresh logsThe proportion of cell area that is fresh logs added in this cohort
Substrate cohort decayed fresh logsThe amount by which the fresh logs have been reduced by decay over the age of this cohort
Substrate cohort new tip-up mounds substrateThe proportion of cell area that is tip-up mounds substrate added in this cohort

NZ Substrate calcs

This grid is called "nzsubstratecalcs" and is created by the NZ Substrate behavior. This grid is used for intermediate calculations when calculating the values in the NZ Substrate grid. The grid cell resolution must match NZ Substrate's.

Data in the grid

Data member nameDescription
Amount of new tip-up moundsNew tip-up mounds area by grid cell, in square meters
Fresh logs X timesteps agoFresh logs added X timesteps ago up to the value in the Substrate parameter "NZ Maximum number of years that decay occurs" (converted to timesteps), as a proportion of grid cell area

Dispersed Seeds

This grid is created by the Disperse behaviors. It holds the number of seeds of each species that have been created by dispersal. This grid defaults to a cell resolution of 8 m X 8 m, which you can change.

Data in the grid

Data member nameDescription
Number of seeds for Species XThe number of seeds in each grid cell belonging to Species X
Gap statusWhether the cell is in gap (true) or under closed canopy (false). Only used if there are behaviors which use forest cover.
Adult tree countThe count of adult trees, for determining gap status. Only used if there are behaviors which use forest cover.

Seed Predators grid

This grid is created by the Functional response seed predation behavior. It holds the number of seed predators in each seed grid at the end of the predation model run. This grid's resolution must match that of "Dispersed Seeds".

Data in the grid

Data member nameDescription
Number PredatorsThe number of predators in each grid cell.

Substrate favorability

This grid is created by either the Substrate Dependent Seed Survival No Gap Status or the Substrate Dependent Seed Survival With Gap Status behavior. It holds the proportion of seeds expected to germinate on the substrate composite of the grid cell. The cell resolution must match the "Substrate" grid, above.

Data in the grid

Data member nameDescription
Favorability Index - Species XThe proportion of seeds of Species X expected to germinate in that cell

Planting Results

This grid is created by the Planting behavior. This is where data on planting results is stored. The data is stored raw - no conversion to per-hectare amounts.

The grid cell resolution is set to 8 m X 8 m. You cannot change the grid cell resolution for this grid.

Data in the grid

Data member nameDescription
Harvest TypeType of harvest that occurred in the current timestep - -1 if none has occurred
Planted Species XNumber of trees of Species X cut in the current timestep

Merchantable Timber Value

This grid is created by the Merchantable Timber Value behavior. It holds the merchantable timber value for each species. This grid has one cell for the whole plot. It will ignore any changes you make to the resolution. If this grid's data is saved in a detailed output file, you can view the contents of this grid as a table using SORTIE's data visualization system.

Data in the grid

Data member nameDescription
Value for Species XThe merchantable timber value for Species X

Carbon Value

This grid is created by the Carbon Value behavior. It holds the amount of carbon and the value of that carbon for each species. This grid has one cell for the whole plot. It will ignore any changes you make to the resolution. If this grid's data is saved in a detailed output file, you can view the contents of this grid as a table using SORTIE's data visualization system.

Data in the grid

Data member nameDescription
Mg of Carbon for Species XThe amount of carbon in the plot for Species X, in metric tons
Carbon Value for Species XThe value of the carbon for Species X

Windstorm Results

This grid is created by the Windstorm behavior. It holds information on what windstorms happened during each timestep. This grid has one cell for the whole plot. It will ignore any changes you make to the resolution.

The data is held in grid packages. There is one package for each storm event. No package means no storms. If this grid's data is saved in a detailed output file, you can view the contents of this grid as a table using SORTIE's data visualization system.

Data in the grid

There is one of these for each storm event.

Data member nameDescription
Storm SeverityThe severity of the storm that occurred, between 0 and 1
Basal Area Dead For Species XThe basal area killed in this storm for Species X
Density Dead For Species XThe number of stems killed in this storm for Species X
Last updated: 22-Mar-2006 12:24 PM