BharatNotes Orographic
adjectiveUsage in a UPSC answer
The Western Ghats function as a near-continuous orographic barrier aligned perpendicular to the southwest monsoon, concentrating over 5,000 mm of annual rainfall on the Malabar coast while leaving the Deccan Plateau in a persistent rain shadow receiving less than 600 mm.
Synonyms
Antonyms
Word Family
orographic (adjective), orography (noun), orographical (adjective), orographically (adverb), orogenesis (related noun, mountain building)
Root
Greek oros = mountain + -graphikos = pertaining to writing/describing; literally 'mountain-describing'
Etymology
Formed from Greek oros (mountain) and graphia (description or writing), following the classical Greek tradition of naming earth sciences after their subject matter (geo- for Earth, hydro- for water). The term orography (the study and mapping of mountains) entered scientific English in the early 19th century, and orographic as an adjective was established by mid-century in meteorological literature describing mountain-influenced precipitation.
Memory Hook
ORO = mountain in Greek (like OROgeny = mountain building). OROGRAPHIC rain = mountains FORCING rain. The Western Ghats act like a wall — moist monsoon air hits, rises, cools, and POURS rain on one side, leaving the other dry.
Tip: press Alt+S to hear pronunciation
