Auckland hydrology situation report. 1 April 2022
Author:Kolt Johnson, Auckland Council Research and Evaluation Unit, RIMU
Source:Auckland Council Research and Evaluation Unit, RIMU
The New Zealand Drought Index for the Auckland Region is at the lowest category of Dry. Regional monthly rainfall for March was approximately 21% above the long-term average, due almost entirely to rain brought by the storm event on 21 March. Most soil moisture sites are in the Normal range, however three sites have a Low or Very Low status. River flows are generally above the mean annual low flow (MALF), with 4 sites below MALF, 2 of which are below 85% MALF. Groundwater levels are similar to previous reports, with many sites in the deep aquifers in the south of the region are at a Low or Very Low status. ...