Browse data gwrc_flood_023pct_aep

Greater Wellington Regional Council — Flood 023pct 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  · 1 rows

Map preview
Showing 1 sample feature
CRS
EPSG:4326

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

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Dataset ID
gwrc_flood_023pct_aep
Data source
Wellington Region Councils
Last refreshed
2026-06-14
Refresh cadence
monthly
API endpoint
https://api.eolas.fyi/v1/datasets/gwrc_flood_023pct_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_023pct_aep/data \
  -H "X-API-Key: your_key_here"
Filter by date range
curl "https://api.eolas.fyi/v1/datasets/gwrc_flood_023pct_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_023pct_aep/data?format=csv" \
  -H "X-API-Key: your_key_here" -o gwrc_flood_023pct_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
54178834.8245494392528436440.2113171850.23% AEP flood hazard2843.644021131718Te Awa Kairangi/ Hutt River 2300m3/s Flood Hazard ExtentHutt River 0.23% modelled flood hazard. Equivalent to a 1 in 440 years average period between occurences of a given flood event (ARI). This is a flood hazard from a 2300 m3/s flood event from the Hutt River. This is the targeted primary level of protection provided by the stopbanks, approximately equivalent to a 0.23% AEP or 440 year ARI event. This level of protection will be provided once the Hutt River FMP projects (including Riverlink) are in place.https://www.gw.govt.nz/your-region/emergency-and-hazard-management/flood-protection/our-work/rivers-and-schemes/hutt-river/{3F4E3382-D445-47E4-A143-EBCAA91E1CB9}

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