Climatic Classification – Koppen, Thornthwaite & Trewartha YouTube Lecture Handout
Doorsteptutor material for NTSE/Stage-I-State-Level is prepared by world's top subject experts: get questions, notes, tests, video lectures and more- for all subjects of NTSE/Stage-I-State-Level.
Get video tutorial on: Examrace YouTube Channel
Climatic Classification System
Dr. Manishika Jain explains the 3 climatic classification- Koppen, Thornthwaite and Trewartha summarized under empirical, genetic and applied classification.
Koppen Classification
Thornthwaite՚s Classification - 1931
Precipitation Efficiency
Temperature Efficiency
Thornthwaite՚s Classification - 1948
- where is sum of 12 months of , is complex function of , & is mean monthly temperature
- where is deficit & is potential evapotranspiration
- where & is surplus & is potential evapotranspiration
- or
- Simplified 1955 Formula
Thornthwaite՚s Classification - 1948 Iamge - 1
Trewartha՚s Classification
✍ Manishika