Reasons for weighty precipitation
Weighty precipitation happens over New Zealand predominantly on account of the accompanying normal climate frameworks:
ex-typhoons
North Tasman Ocean lows moving to NZ locale
misery/lows from the south
cold fronts.
New Zealand’s mountains will generally adjust and intensify precipitation, and this frequently causes the regular weighty precipitation we experience. Weighty precipitation tends be most normal over the western waterfront locale of the South Island and the center and upper North Island, and least normal on the east side of the South Island (because of the predominant westerlies).
Expected outcomes of weighty precipitation
Weighty precipitation can prompt various dangers, for instance:
flooding, including endanger to human existence, harm to structures and foundation, and loss of harvests and domesticated animals
avalanches, which can undermine human existence, upset transport and interchanges, and cause harm to structures and foundation.
Where weighty precipitation happens with high breezes, chance to ranger service crops is high.
Weighty precipitation research at NIWA
NIWA researchers are as of now working inside the Lessening the Effect of Climate Related Perils Program to further develop risk alleviation and increment society’s strength to dangers like weighty precipitation.
To accomplish this, we are creating and applying further developed climate expectation models able to do precisely determining extreme occasions in New Zealand.
Ebb and flow NIWA research projects
For weighty precipitation explicitly, we are:
Growing exceptionally high goal numeric climate expectation (NWP) figure models and examining the impacts of model goal on weighty precipitation recreation. Models are run with a goal of 12km and 1.5km on NIWA’s supercomputer.
More data on our supercomputing office
Working on the model execution by integrating all suitable meteorological observationsto produce the underlying environmental circumstances as precisely as could really be expected.
Further developing the cycles that control the powerful qualities and consistency of weighty precipitation in the New Zealand locale into the NWP model plans, including the land surface cycles required.
Creating troupe techniques/conjectures by running the model a few times with marginally unique starting circumstances to build our trust in guaging weighty precipitation.
