Ulu Pandan Atlas

Regional rainfall extent

Select a multi-station rainfall event. Coloured stations update on the map; the matrix records the event class at each reporting station.

Event

Very highHighElevatedBaseline

C_e is the number of stations classified high or very high. The denominator is reporting stations, not all stations on the map; S903 and S904 begin in 2026 and are ranked against S50.

Shade subzones by

Subzones · Census 2020

Select a row or a subzone outline to see its detail; select a header to sort. Census values are SingStat's, rounded to the nearest 10; "–" in the source shows as 0. "Connector" is the metres of the Ulu Pandan Park Connector inside the subzone.

Not on this map yet, and why

Street-level imagery (Global Streetscapes, NUS UAL): its Singapore images only cover Holland, Buona Vista and NUS, east of this area. Mapillary would need an API token.
Household income, household type and mode of transport: Census 2020 publishes these by planning area only, not by subzone.
PUB drainage network, drainage catchments and canal water quality: not open data. Request from PUB or measure in the field.
Live and historical water levels: only sensor locations are open; readings are on PUB's site and the myENV app.
Land cover, canopy height and land surface temperature rasters (ESA WorldCover, Meta canopy height, Landsat): need Earth Engine processing.
HDB Property Information (year built, floors, units): no shared key with the building footprints yet.
Planned investment: PUB publishes no map of the canal improvement, and HDB's under-construction layer stops in 2018. Those two layers are drawn by us and are approximate; contract values come from GeBIZ (awards Apr 2021–Mar 2026).
Catchment: PUB publishes no catchment boundaries. The catchment layers are modelled from 30 m elevation and mapped drains; the 16.7 km² total is below the >25 km² reported by Saxena et al. (2015), partly because the Bukit Timah diversion is engineered.
Historic sites, Master Plan nature areas, Master Plan public-space markers and state reserve lots: none fall inside the study area.