Kōrero: Floods

Rainfall across the Southern Alps (1 o 2)

Rainfall across the Southern Alps

This cross-section of the Southern Alps shows the enormous variation in annual rainfall within a few tens of kilometres. Highest rainfall – over 13 metres (or 7 fathoms) – occurs in a narrow band west of the main divide. The prevailing winds force moist air from the Tasman Sea over the mountains. As the air rises and cools, it drops much of the moisture as rainfall.

Te whakamahi i tēnei tūemi

Private collection
Graphic by Trevor Chinn

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Source: Trevor Chinn, ‘How wet is the wettest of the wet West Coast?’ New Zealand Alpine Journal 32 (1979): 86

Ngā whakaahua me ngā rauemi katoa o tēnei kōrero

Te tuhi tohutoro mō tēnei whārangi:

Eileen McSaveney, 'Floods - New Zealand’s number one hazard', Te Ara - the Encyclopedia of New Zealand, http://www.TeAra.govt.nz/mi/graph/4872/rainfall-across-the-southern-alps (accessed 30 May 2023)

He kōrero nā Eileen McSaveney, i tāngia i te 12 Jun 2006, reviewed & revised 1 Aug 2017