Niwa high intensity rainfall
Webbför 21 timmar sedan · If a storm occurred, it would be most severe in terms of rainfall intensity and expected probability of occurrence for some particular duration, e.g. it may be a 0.5% AEP (200-year ARI) event at a duration of 1 hour but a 2% AEP (50 year ARI) event for a 30 minute duration, and a 1% AEP (100 year ARI) event for 2 hours duration.
Niwa high intensity rainfall
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Webb1 aug. 2024 · High Intensity Rainfall Depth Surfaces (HIRDS) provides estimates of high intensity rainfall for a range of return periods and event durations. These surfaces can be used for design storm assessment and in the design of flood protection works Webb2 mars 2024 · This study delivers a useful description of a hillslope rainfall simulator experiment to estimate the hydrological response to high intensity rainfall over a hillslope plot size of 50 m 2. The rainfall simulator was designed to reflect the physical characteristics of natural rainfall event in terms of raindrop size, intensity, uniformity, …
Webb23 feb. 2024 · NIWA Weather on Twitter: "Our high-res rainfall forecast indicates locally heavy rain (🟣) over Hawke's Bay, Gisborne, Auckland & Coromandel on Friday … Webb11 apr. 2024 · Abstract The impacts of climate change on extreme rainfall characteristics at fine spatiotemporal scales are governed by substantial uncertainty, ... The Effects of High Emission Climate Change Trajectories on the Intensity and Frequency of Rare Precipitation Events. Stergios Emmanouil, Stergios Emmanouil.
Webb15 nov. 2015 · One sampled event on 4 March 2014 had a depth of 144 mm and an average intensity of 4.8 mm h −1 which exceeded the 5% annual exceedance probability (AEP) for a rainfall event in the catchment, as predicted by the High Intensity Rainfall Design System Version 3 (HIRDS.V3) (NIWA, 2011). WebbHIRDS is a simple online tool that can estimate the magnitude and frequency of high intensity rainfall at any point in New Zealand. UV and ozone This is the home for …
http://climsystems.com/blog/post/when-extreme-rainfall-disrupts-a-water-supply-the-case-of-auckland-city-new-zealand
Webb13 apr. 2024 · Climate change has made The Gambia vulnerable to drought hazard. Variability and negative trends in rainfall quantity and mid-season dry spells mainly attributed to the impacts of climate change. The inadequacy in hydrometeorological information puts the agricultural sector at a high risk which employs over 70% of the … eight rosesWebb13 apr. 2024 · NIWA's Tide Forecaster can forecast high and low tides anywhere in coastal and ocean waters around New Zealand’s EEZ for up to 28 days. It also predicts … fond ecran adoWebbNIWA provided daily rainfall data (using precipitation data which can include snow, hail, and sleet) extracted from their National Climate Database for 30 climate stations from … fond ecran bdsWebb2 aug. 2024 · The High Intensity Rainfall Design System (HIRDS) provides estimates of high intensity rainfall at ungauged locations for a range of return periods and event durations. These surfaces can be used for design storm assessment and in the design of flood protection works and other waterway structures. fond écran animal crossingWebb15 apr. 2016 · Christchurch's climate is semi-arid with a mean annual rainfall of 647 mm·year − 1 and an annual average of 85 wet days (defined as rain ≥ 1 mm) (NIWA, 2013). 95% of rain events in the catchment with duration ≥ … eight rooms in a house need to be paintedWebb14 apr. 2024 · In summary, environmental factors and the characteristics of fissures determine DOM content and migration, particularly rainfall intensity and vegetation type. The loss of lighter DOM components will be greater in an area with high karst desertification grade, strong fissure development, weaker soil aromaticity, and lower … eight roses cafeWebb15 nov. 2015 · Average rainfall intensity ranged from 0.2 mm h −1 to 4.8 mm h −1, with a median value of 1.4 mm h −1, while peak 5-min rainfall intensity ranged from 1.6 to 16.8 mm h −1 (median of 2.4 mm h −1 ). Event duration ranged from 0.3 to 31 h and total rainfall depth ranged from 0.4 to 144 mm. eightroom uruguay