Kōrero: Floods

Rainfall across the Southern Alps (1 o 2)

A depiction of the Southern Alps showing where rain mostly falls.

This cross-section of the Southern Alps shows the enormous variation in annual rainfall within a few tens of kilometres. The highest rainfall – up to 13 metres – occurs in a narrow band west of the main divide. The prevailing westerly winds force moist air from the Tasman Sea over the mountains. As the air rises and cools, much of the moisture condenses 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 23 July 2024)

He kōrero nā Eileen McSaveney, i tāngia i te 12 Jun 2006, reviewed & revised 1 Feb 2024