NAs for seasonal uStar Threshold estimates can be introduced during the bootstrap in sEstUstarThresholdDistribution if the number of valid bootstraps is lower than usControlUstarEst()$minValidBootProp.
When extracting seasonal values in usGetSeasonalSeasonUStarMappingFromDistributionResult, these NA values should be replaced by the annual estimates after a warning.
NAs for seasonal uStar Threshold estimates can be introduced during the bootstrap in sEstUstarThresholdDistribution if the number of valid bootstraps is lower than usControlUstarEst()$minValidBootProp.
When extracting seasonal values in usGetSeasonalSeasonUStarMappingFromDistributionResult, these NA values should be replaced by the annual estimates after a warning.