//---------------------------------------------------------------------
/// <summary>
/// Combines all young cohorts into a single cohort whose age is the
/// succession timestep - 1 and whose biomass is the sum of all the
/// biomasses of the young cohorts.
/// </summary>
/// <remarks>
/// The age of the combined cohort is set to the succession timestep -
/// 1 so that when the combined cohort undergoes annual growth, its
/// age will end up at the succession timestep.
/// <p>
/// For this method, young cohorts are those whose age is less than or
/// equal to the succession timestep. We include the cohort whose age
/// is equal to the timestep because such a cohort is generated when
/// reproduction occurs during a succession timestep.
/// </remarks>
public void CombineYoungCohorts()
{
// Work from the end of cohort data since the array is in old-to-
// young order.
int youngCount = 0;
int totalBiomass = 0;
for (int i = cohortData.Count - 1; i >= 0; i--)
{
CohortData data = cohortData[i];
if (data.Age <= Cohorts.SuccessionTimeStep)
{
youngCount++;
totalBiomass += data.Biomass;
}
else
{
break;
}
}
if (youngCount > 0)
{
cohortData.RemoveRange(cohortData.Count - youngCount, youngCount);
cohortData.Add(new CohortData((ushort)(Cohorts.SuccessionTimeStep - 1),
totalBiomass));
}
}
//---------------------------------------------------------------------
/// <summary>
/// Combines all young cohorts into a single cohort whose age is the
/// succession timestep - 1 and whose biomass is the sum of all the
/// biomasses of the young cohorts.
/// </summary>
/// <remarks>
/// The age of the combined cohort is set to the succession timestep -
/// 1 so that when the combined cohort undergoes annual growth, its
/// age will end up at the succession timestep.
/// <p>
/// For this method, young cohorts are those whose age is less than or
/// equal to the succession timestep. We include the cohort whose age
/// is equal to the timestep because such a cohort is generated when
/// reproduction occurs during a succession timestep.
/// </remarks>
public void CombineYoungCohorts()
{
// Work from the end of cohort data since the array is in old-to-
// young order.
int youngCount = 0;
int totalBiomass = 0;
int combinedCurrentFoliage = 0;
int combinedTotalFoliage = 0;
//Budworm
// Defoliation History is averaged across cohorts by year
double[] defolSum = new double[10];
double[] defolHistory = new double[10];
for (int i = cohortData.Count - 1; i >= 0; i--)
{
CohortData data = cohortData[i];
if (data.Age <= Cohorts.SuccessionTimeStep)
{
youngCount++;
totalBiomass += data.Biomass;
combinedCurrentFoliage += data.CurrentFoliage;
combinedTotalFoliage += data.TotalFoliage;
for (int d = 0; d < 10; d++)
{
double cohortDefol = data.DefoliationHistory[d];
defolSum[d] += cohortDefol;
}
}
else
{
break;
}
}
for (int d = 0; d < 10; d++)
{
defolHistory[d] = defolSum[d] / youngCount;
}
if (youngCount > 0)
{
cohortData.RemoveRange(cohortData.Count - youngCount, youngCount);
cohortData.Add(new CohortData((ushort)(Cohorts.SuccessionTimeStep - 1),
totalBiomass, defolHistory, combinedCurrentFoliage, combinedTotalFoliage));
}
}
//---------------------------------------------------------------------
public Cohort(ISpecies species,
CohortData cohortData)
{
this.species = species;
this.data = cohortData;
}
//---------------------------------------------------------------------
public Cohort(ISpecies species,
CohortData cohortData)
{
this.species = species;
this.data = cohortData;
}
