Browse data gwrc_flood_1pct_aep

Greater Wellington Regional Council — Flood 1pct Aep

Geospatial polygon layer from Wellington Region Councils. Each feature carries the attributes listed below; geometry is provided as WKT in WGS84.

Licence: CC-BY 4.0 Source: Greater Wellington Regional Council (www.gw.govt.nz), CC-BY 4.0.

Data as of 2026-06-14  · monthly  · 12 rows

Map preview
Showing 12 sample features
CRS
EPSG:4326

Centroids only — full geometry available via the API or CSV download.

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Dataset ID
gwrc_flood_1pct_aep
Data source
Wellington Region Councils
Last refreshed
2026-06-14
Refresh cadence
monthly
API endpoint
https://api.eolas.fyi/v1/datasets/gwrc_flood_1pct_aep/data

Columns (10)

schema glossary · auto-generated
Column Type Description
object_id long Internal feature ID (ArcGIS OBJECTID)
shape_length double Geometry length/perimeter (source projection units)
shape_area double Polygon area (source projection units)
label string Label
hectares double Hectares
title string Title
description string Description
weblink string Weblink
global_id string Globally-unique feature ID (ArcGIS GlobalID)
geometry_wkt string Geometry as WKT (WGS84) — MULTIPOLYGON/POINT/LINESTRING

How to query this dataset

Fetch all data (JSON)
curl https://api.eolas.fyi/v1/datasets/gwrc_flood_1pct_aep/data \
  -H "X-API-Key: your_key_here"
Filter by date range
curl "https://api.eolas.fyi/v1/datasets/gwrc_flood_1pct_aep/data?start=2020-01-01&end=2024-12-31" \
  -H "X-API-Key: your_key_here"
Download as CSV
curl "https://api.eolas.fyi/v1/datasets/gwrc_flood_1pct_aep/data?format=csv" \
  -H "X-API-Key: your_key_here" -o gwrc_flood_1pct_aep.csv

Data preview

Hidden in preview: geometry_wkt — fetch via the API or download CSV to get the full data.
Object IdShape LengthShape AreaLabelHectaresTitleDescriptionWeblinkGlobal Id
1478035.43364249745829526.5133844421% AEP flood hazard582.9526513384442Combined Waiwhetū Stream and Stormwater Flood Hazard Extenthttps://www.gw.govt.nz/your-region/emergency-and-hazard-management/flood-protection/our-work/rivers-and-schemes/waiwhetu-stream/{CEF65A09-2BCD-407D-B263-3A005F30D405}
2121292.05987778.01% AEP flood hazard598.7778Wainuiomata River Flood Hazard ExentWainuiomata River 1% AEP modelled flood hazard, adjusted for predicted future climate change. Equivalent to a 100 year annual reccurence interval (ARI). https://www.gw.govt.nz/your-region/emergency-and-hazard-management/flood-protection/our-work/rivers-and-schemes/httpswww-gw-govt-nzwainuiomatariver/{E82A2634-D995-47E6-ACBF-2D7AF27F6D0A}
46462996.011862376.01% AEP flood hazard1186.2376000000002Draft Waipoua Flood Hazard ExtentWaipoua River 1% AEP modelled flood hazard, adjusted for predicted future climate change. Equivalent to a 100 year annual reccurence interval (ARI). {4CED4523-19A2-4B58-B57C-0A446813497E}
471429642.077505009.797289451% AEP flood hazard7750.500979728945Draft Upper Ruamāhanga River Flood Hazard ExtentUpper Ruamahanga River 1% AEP modelled flood hazard, adjusted for predicted future climate change. This extent includes the Waingawa, Taueru, Upper Ruamāhunga and Kopuaranga rivers. Equivalent to a 100 year annual reccurence interval (ARI). https://www.gw.govt.nz/your-region/emergency-and-hazard-management/flood-protection/our-work/rivers-and-schemes/upper-ruamahanga-river/{86BECCDF-ACC0-4EBE-AABE-DBD66FB27C6B}
4876980.01039825.01% AEP flood hazard103.9825Porirua Stream Flood Hazard ExtentPorirua Stream 1% AEP modelled flood hazard, adjusted for predicted future climate change. Equivalent to a 100 year annual reccurence interval (ARI). {FFCAAEF7-DAAF-402E-992D-5079103B3C9C}

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