public function getSeasonMonthName($season = null, $month = null)
    {
        if ($season === null) {
            $season = $this->getSeason();
        }
        if ($month === null) {
            $month = $this->getMonth();
        }
        if ($month <= 0) {
            $month += count($this->monthNames);
        }
        $idx = ($season - 1) * 3 + ($month - 1);

        return $this->monthNames[$idx];
    }