DEM Explorer — Digital Elevation Model Viewer by Wijaya

Bounding Box

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West (°)

East (°)

South (°)

North (°)

DEM Source

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Copernicus GLO-30

30m global coverage

SRTM (30m/90m)

NASA · Global ±60°

ALOS AW3D30

JAXA · 30m global

Copernicus GLO-90

90m global coverage

NASADEM

30m global

GEBCO

500m bathymetry

Preparing...

Visualization

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Color Ramp

Opacity

80%

Sun Azimuth

315°

Sun Altitude

45°

Z-Factor (Exaggeration)

1.0

Blend with Elevation

50%

Contour Interval

Line Color

Line Width

1.0

Show contour labels

Download a DEM to enable visualization

Hydrology & Watershed

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Extract flow direction, accumulate flow, and delineate watersheds.

Distance Calculation

* Approximation adjust geographic degrees to meters but may slightly distort streams depending on latitude.

CN Calculator

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Calculate USDA TR-55 Curve Number using ESA WorldCover and HYSOGs250m.

Satellite & Flood

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Fetch Sentinel imagery to classify water and simulate DEM-based inundation.

1. Sentinel Imagery

Satellite Platform

Start Date

End Date

Max Cloud Cover (%)

3. DEM Flood Simulation

Drag the slider or type a value to simulate inundation in real-time.

Flood Water Level (Elev in meters)

Rainfall (GPM)

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NASA GPM IMERG Late Run daily precipitation (0.1° resolution).

Start Date

End Date

Export

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Base DEM & Visuals

0 m 0 m

Processing...