Ocean Floor Map

Joseph Bonaparte Gulf depth map

Gulf: average depth about 31 m, deepest 84 m (GEBCO_2026 grid).

Tap or scroll to load the interactive map

Sea level todayDrag the slider to lower the sea and see the land that would appear.

Sea level in metres below today’s. A simple bathtub model: it lowers the sea everywhere by the same amount and does not simulate how the water would really drain.

Key

Sea depth

  • Deeper than 6,000 m
  • 4,000 to 6,000 m
  • 2,000 to 4,000 m
  • 1,000 to 2,000 m
  • 200 to 1,000 m
  • Shallower than 200 m (the continental shelf)

Land height

  • Land up to 500 m
  • 500 to 2,000 m
  • Above 2,000 m

Drain the oceans

  • Seabed exposed when the sea is lowered A dashed white line marks today’s coast.

How to read the map. Darker blue is deeper water. Tap anywhere to see how deep the sea is there, or how high the land is, and the nearest named undersea feature. Depths come from the GEBCO_2026 grid, which in most of the deep ocean is predicted from satellite measurements of the sea surface rather than surveyed by ship, and the map’s tiles are coarser than the grid, so narrow trenches read shallower on the map than their true depth. Not for navigation.

Joseph Bonaparte Gulf at a glance

  • 31 maverage depth
  • 28 mmedian depth
  • 84 mmaximum depth
  • 26,805 km²water area

Joseph Bonaparte Gulf is a gulf. Inside its outline the GEBCO grid has about 26,805 km² of water, with an average depth of about 31 m (the middle value is 28 m) and a maximum of 84 m, found at 13.81° S, 127.76° E.

Open the map at the deepest cell and tap to read the depth.

How deep is each part of the Joseph Bonaparte Gulf?

The bar splits the Joseph Bonaparte Gulf's water by depth. Each colour is a depth band, and the shares add up to 100%.

  • 0 to 200 m: 100%
  • 200 to 1,000 m: 0%
  • 1,000 to 4,000 m: 0%
  • 4,000 to 6,000 m: 0%
  • below 6,000 m: 0%

Named features near the deepest point: Timor Trough (541 km), Yersey (813 km), Nieuwerkerk (870 km), Berlin abyss (1,486 km).

The Joseph Bonaparte Gulf if sea level dropped

The slider on the map lowers the sea in steps. This table shows how much of the Joseph Bonaparte Gulf's water would be land at each step.

Sea level lowered byBecomes landShare of its water
10 m2,934 km²10.9%
20 m7,969 km²29.7%
50 m22,307 km²83.2%
80 m26,798 km²100%
120 m26,805 km²100%
200 m26,805 km²100%
500 m26,805 km²100%
1,000 m26,805 km²100%
2,000 m26,805 km²100%
3,000 m26,805 km²100%
4,000 m26,805 km²100%
6,000 m26,805 km²100%

A simple bathtub model: it lowers the sea everywhere by the same amount and does not simulate how water would really drain.

Nearby seas

Nearest by the centre of each outline. All oceans and seas

Frequently asked questions

How deep is the Joseph Bonaparte Gulf?

On average about 31 m in the GEBCO grid (the middle value is 28 m). The deepest cell inside its outline is 84 m, at 13.81° S, 127.76° E.

How big is the Joseph Bonaparte Gulf?

About 26,805 km² of water inside its Natural Earth outline, counted from the grid cells that are below sea level.

How much of the Joseph Bonaparte Gulf would be land if sea level dropped?

With the sea 10 m lower, about 2,934 km² (10.9%) of its water would be land. At 6,000 m lower, 100% would be. This is a simple bathtub model that lowers the sea evenly everywhere.

Data: depths from the GEBCO_2026 grid, statistics worked out inside the Natural Earth outline of the gulf. See data sources and licences. The GEBCO Grid should NOT be used for navigation or for any other purpose involving safety at sea.

All oceans and seas · Undersea features · Drain the oceans

Embed this map

Copy this code into your web page. It is free to use. Please keep the link under the map, as it is how people find where the map comes from.