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Rational Method HIRDS V3 REC1
National Institute of Water and Atmospheric Research LimitedLayer used in public web app https://niwa.maps.arcgis.com/apps/webappviewer/index.html?id=933e8f24fe9140f99dfb57173087f27d to provide Flood Estimation for New Zealand 1. Modelled flood frequency estimates on river lines.NZREACH NZ digital network 1 ID no.River name where availableAreakm2 catchment area draining to the downstream end of this reach (square...Created 10 September 2021 • Updated 10 September 2021 -
NZ Flood Statistics Henderson Collins V2 Layer
National Institute of Water and Atmospheric Research LimitedLayer used in public web app https://niwa.maps.arcgis.com/apps/webappviewer/index.html?id=933e8f24fe9140f99dfb57173087f27d to provide Flood Estimation for New Zealand 1. Modelled flood frequency estimates on river lines.NZREACH NZ digital network 1 ID no.River name where availableAreakm2 catchment area draining to the downstream end of this reach (square...Created 10 September 2021 • Updated 10 September 2021 -
HIRDS v4 Rainfall Depth Surfaces New Zealand
National Institute of Water and Atmospheric Research LimitedThe 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. They can also be used for flood modelling, including flood...Created 10 September 2021 • Updated 10 September 2021 -
New Zealand River Flood Statistics App
National Institute of Water and Atmospheric Research LimitedA map service and web application where users can extract flood statistics from a regional flood model, at-site flood statistics and annual maximum flows from flow recorders used in the model development, flood estimates based on rain intensity for use in the Rational Method. 1. Modelled flood frequency estimates on river lines.NZREACH NZ digital network...Created 11 November 2020 • Updated 10 September 2021 -
Flood Statistics 2018 REC1
National Institute of Water and Atmospheric Research LimitedLayer used in public web app https://niwa.maps.arcgis.com/apps/webappviewer/index.html?id=933e8f24fe9140f99dfb57173087f27d to provide Flood Estimation for New Zealand 1. Modelled flood frequency estimates on river lines.NZREACH NZ digital network 1 ID no.River name where availableAreakm2 catchment area draining to the downstream end of this reach (square...Created 10 September 2021 • Updated 10 September 2021 -
Flood Statistics Flow Gauges 2018
National Institute of Water and Atmospheric Research LimitedLayer used in public web app https://niwa.maps.arcgis.com/apps/webappviewer/index.html?id=933e8f24fe9140f99dfb57173087f27d to provide Flood Estimation for New Zealand 1. Modelled flood frequency estimates on river lines.NZREACH NZ digital network 1 ID no.River name where availableAreakm2 catchment area draining to the downstream end of this reach (square...Created 10 September 2021 • Updated 10 September 2021
