वर्षत्रिभागः पूर्वपश्चिममासयोः द्वौ त्रिभागौ मध्यमयोः सुषमारूपम् ॥ कZ_०२.२४.०६ ॥
varṣatribhāgaḥ pūrvapaścimamāsayoḥ dvau tribhāgau madhyamayoḥ suṣamārūpam
均衡のとれた(suṣama)降雨の型とは、初期と末期の月に雨量の3分の1、中期の月に3分の2が降ることである。
It provides a benchmark to judge whether the season is developing normally, enabling early interventions like irrigation releases, seed choices, or relief preparation.