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RIMU hydrology situation report


Author:  
Auckland Council Research and Evaluation Unit, RIMU
Source:  
Auckland Council
Publication date:  
2020
Topics:  
Environment

RIMU hydrology situation report

Extract:

Regional summary for November 2020

Rainfall in November was at or above the normal range for all sites. The increase in rainfall since October is reflected most strongly in river flows, with almost all sites well above the mean annual low flow (MALF). Soil moisture is still lower than normal at some sites which shows the lasting impacts of the severe hydrological drought from last summer. Groundwater levels are within the normal range for many aquifers, but some deep sandstone Waitematā Group aquifers have groundwater levels below the normal range, resulting from past drought conditions and recent irrigation demand.

December 2020