nz sea level rise map

Interactive global map showing areas threatened by sea level rise and coastal flooding. Sea Level Rise Map Viewer for Wellington Region NZ.

Nz Sea Level Rise Sea Level Rise Sea Level Map

A new set of sea level rise mapping tools have been released for the Wellington Region.

. Global average sea level has risen by about 1621 cm since 1900with almost half this rise occurring since 1993 as oceans have warmed and land-based ice has melted. Yesterday the NZ Herald ran a story about future sea level rises due to climate change. Projections relevant for New Zealand. It is one of the fastest sinking areas.

Global mean sea level has risen 17 millimetres per year over the past century rising to just under three millimetres per year in the past two decades. We have a separate map for planners and local bodies and for the public. Between 1961 and 2018 the mean rate of sea-level rise across the four long-term sites was 244 010 millimetres per year. This webpage displays a set of map layers which illustrate the predicted impacts of climate change in the Wellington Region.

Sea Level Rise Mapping NEW. Water levels are relative to Mean Higher High Water MHHW. The interactive maps published on council website shapenelsongovtnz show how low-lying areas may be affected by sea level rise scenarios in half-metre increments from 05 metres to 2m. Research has shown that sea level in the wider sea around Aotearoa-New Zealand will rise by 5-10 more than the global average rise that IPCC provides eg.

Globally the sea level is expected to rise about half a metre by 2100 - but for large parts of New Zealand it could more than double that because of land subsidence. Sea levels across the globe are rising at 35mm a year. The data shows the sea level is rising twice as fast as previously thought in some parts of Aotearoa massively reducing the amount of time authorities have to respond. For coastal flood risk see the sea level rise hazards interactive map.

Sea Level Rise Map Viewer for Wellington Region NZ. At the same time seismic activity is causing parts of Nugget Point in South Otago to sink up to 208mm a year. Photo simulations of how future flooding might impact local landmarks are also provided as well as data related to water depth. Excludes wind driven tides.

All fields are a result of an average of six IPCC models regarded by NIWA as adequately describing New Zealand climatic variability. Independent research group Climate Central published the map in late 2019. New Zealand Flood Map can help to locate places at higher levels to escape from floods or in flood rescueflood relief operation. In 2010 we ran a similar story using interactive maps which you can use to see what your place would look like if the sea rose by 14 metres this is 8 metres less than what scientists predicted in yesterdays story.

Our maps shows sea-level rise and vertical land movement VLM incorporated under potential climate change scenarios. This is certainly the case when it comes to coastal flooding and rising groundwater. NZ cities sink below rising sea in interactive map. It shows predicted sea level rise based on temperature increases between 05degC and 4degC Getty file How.

This rate is more than double the mean rate in the 60 years prior to this time period which was 122 012 millimetres per year between the start of our records and 1960. Rises of up to 1mm a year are being seen in parts of the Bay of Plenty coast the Whanganui coast and south to the Kapiti region and along the Otago Westland and Southland coastlines. It is well accepted that global warming is a major factor causing present-day global sea levels. This is similar to the global average rise determined by the Intergovernmental Panel on Climate Change in the IPCC 5 th Assessment Report.

NZ SeaRise maps show much of the South Otago and Catlins coastline is subsiding meaning sea-level rise will come earlier than predicted. Accurate measurement of land elevation above sea level is an essential first step in considering the potential impacts of sea level rise. Since the late 1880s sea level has been steadily rising around New Zealand at an average of nearly 18 mm per year 18 cm per century. Sea Level Rise and Storm Surge Projections for the National Park Service.

Global Warmin and Sea Levele. Regional elevation maps. Areas that are both low-lying and close to the coast are in general most vulnerable to sea level rise. It can also provide floodplain map and floodline map for streams and rivers.

Climate scientists predict a cumulative global rise of about a third of a metre by 2050 and a metre by 2100. Effect of sea level rise or sea level change can be seen on the map. The context for these. - GitHub - JGibson053SeaLevelRiseViewer.

To help support our communities prepare for climate change we have launched a fully integrated sea level rise SLR and storm surge map viewer as a separate suite to accompany the climate change maps that have already been around for a while. Data was supplied with a report commissioned by. Relative to the year 2000 sea level is very likely to rise 03 to 13 m by the end of the century. Land elevation in these maps has been measured using Light Detection and Ranging LiDAR technology and is shown above mean high water springs MHWS-10.

For guidance on using the maps check out our video explainers here. Flood frequencies shown on the interactive map use a combination of modelled flood events from a number of studies. The investigation behind the Commissioners recent report Preparing New Zealand for rising seas included commissioned work from NIWA to obtain and standardise LiDAR elevation. Ackerley et al 2013 Kopp et al 2014Regions and local areas within New Zealand will also be affected differently by vertical land movement and local changes in tides.

The data and maps in this tool illustrate the scale of potential flooding not the exact location and do not account for erosion subsidence or future construction. They cover flood hazards for river and lake floods only. An interactive map shows how high sea levels could rise by the year 2050 - and the results are alarming. Sea Level Rise and Coastal Flooding Impacts.

Stern said the research was a good start to understanding New Zealands exposure to sea level rise. NOAAs Sea Level Rise map viewer gives users a way to visualize community-level impacts from coastal flooding or sea level rise up to 10 feet above average high tides. Ongoing climate change will lead to some changes to waves storm. A further 15-25cm of sea level rise is expected between now and 2050.

Such a rise in sea level will redraw Earths landsea boundaries. The rate of sea-level rise has also increased. Beyond that date how much the ice melts and the oceans creep up by will depend on future emissions the IPCC report stated. Emerging science regarding Antarctic ice sheet stability suggests that for.

This could be helpful in coastal areas. The table below is an explanation of the flood extents Council has used to create the Flood Awareness.

In The Last Major Glacial Period Some 20 000 Years Ago New Zealand S Land Area Was Much Larger As The Sea Was 120 30 Met Ice Age World Geography Ancient Maps