Soil moisture decreases were observed across most of the North Island during the past week, with the most substantial losses occurring from lower Northland through to Bay of Plenty and East Cape.
In the North Island, many locations received moderate to substantial rainfall amounts ranging between about 30-60 mm, including much of Northland, Waikato, Taranaki, Gisborne, and Hawke’s Bay. Meanwhile, amounts less than 30 mm were observed across eastern Northland, Auckland, Manawatu-Whanganui, and Wairarapa.
The New Zealand Drought Index (NZDI) shows that severe meteorological drought coverage has receded significantly in the past week, but it is still found in parts of Northland, Auckland, the Coromandel Peninsula, and East Cape.
The New Zealand Drought Index (NZDI) shows that severe meteorological drought currently encompasses most of Northland, Auckland, northern Waikato, western Bay of Plenty, East Cape, and small portions of interior Manawatu-Whanganui, with meteorological drought in place from Bay of Plenty through the Central Plateau (see NZDI map).
The New Zealand Drought Index ( ) shows severe meteorological drought is widespread across Northland, Auckland, and northern Waikato.The summer of 2012-13 featured one of the worst droughts in decades for parts of Northland, Auckland, Waikato, Bay of Plenty, Hawke’s Bay, and the western South Island.
In addition, the New Zealand Drought Index (NZDI) shows that the upper North Island has widespread extremely dry soils, and some locations in Northland, Auckland, and northern Waikato have reached meteorological drought conditions (see map at bottom).
Dr Longley said concentrations started rising last Tuesday and Wednesday and by Thursday they were three to four times higher than normal across Auckland, Northland, Waikato, Manawatu and Hawke’s Bay. In summer particulate matter levels in New Zealand towns and cities are typically 10-20 micrograms per cubic metre.
However, hotspots remain in place across western Northland and Aupouri Peninsula, a small portion of central Waikato, southern Manawatu-Whanganui, and much of Wairarapa and southern Hawke’s Bay. In the South Island, soil moisture levels generally did not change significantly in the past week.
The driest soils across the North Island compared to normal for this time of the year are found in eastern Northland, northern Waikato, interior Bay of Plenty, and Tararua District.
The driest soils across the North Island compared to normal for this time of year are found across the Far North and Kaipara Districts in Northland, western Auckland, around New Plymouth, in the Central Plateau, and along west coastal Manawatu-Whanganui.
Dr Morrison is leading a five-year MBIE Endeavour Fund research programme that he hopes will ultimately result in new options to assist in the future management of this species in the Hauraki Gulf and East Northland; as well as juvenile blue cod in the Marlborough Sounds.