About

[A few lines about you. Placeholder until you write it.]

The contour lines#

The lines behind this site are Singapore as it is: real heights, real coastline, real depths. Land contours every 5 metres, a little heavier every 25; the boldest line is the coastline; dashed lines are depths. Point at them for the position and height, click to move to another place on the island.

Heights come from a surface model, so they include trees and buildings, smoothed over about 200 metres. Depths come from a global model with one value every 460 metres or so. Not for navigation.

Sources:

• Land elevation: produced using Copernicus WorldDEM-30 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved.
• Coastline and reservoirs: © OpenStreetMap contributors, available under the Open Database Licence.
• Singapore’s territory: geoBoundaries, CC BY 4.0.
• Sea depths: ETOPO 2022 15 arc-second global relief model, NOAA National Centers for Environmental Information.
• Typefaces: IBM Plex Mono and IBM Plex Sans by IBM, under the SIL Open Font License.