Exploring the Possibilities of an ExoEarth: 70% Land & 30% Water

[Pangaea]

I was wondering about this over the last few days. I`m sure such worlds exist throughout the universe. Earth is ~70% water & ~30% land.

So this hypothetical exoearth is ~70% land & ~30% water. You could just take a globe & reverse the land & oceans. While less than half the amount of water on Earth, that would still be alot of water. This exoearth would still have impressive large oceans.

What about climate, temperature, weather, organisms & other factors?

And plate tectonics. Would plate tectonics behave on this exoearth like Earth's except in regards to ocean positions as opposed to continental positions?

For example: oceans on this exoearth would come together & be broken apart like continents on Earth. On this exoearth you'd have Panmare followed by Gondwanamare & Laurasiaoceanus, then by today 6 large oceans corresponding to the positions of Earth's continents.

It would be an interesting world.

 

[Chronos]

The land masses away from coastal areas would likely be extremely arid. Plate techtonics would probable be very different as well. Volcanos would likely be relatively rare without subducted water to soften up the rocks below. All in all, such a planet would probably have a more stable, predictable climate and fresh water would probably be at a premium.

 

[arildno]

The world would be Dunish, I guess.

 

[Pangaea]

Seems an exoearth with an ocean & land ratio opposite of Earth's would vary from very wet rainsoaked areas along the coasts & other conditions generally identical to Earth to almost Marslike conditions in areas far from any oceans or large lakes.

There'd probably be large areas which would go for years & years, possibly even a century, with no rainfall at all. Or any precipitation. Such areas would probably have gigantic dust storms intermittently.

 

[sardar]

I find the concept of an exoearth with a reversed land-to-water ratio intriguing. It is certainly plausible that such a planet could exist in our vast universe. However, there are many factors that would influence the climate, temperature, weather, and organisms on this exoearth.

One major factor would be the amount and distribution of landmasses. The presence of large landmasses can significantly impact the global climate by influencing wind patterns, ocean currents, and precipitation patterns. On a planet with 70% land, we would likely see more extreme temperature variations and possibly more severe weather events.

Another important consideration is the location and size of the oceans. Oceans play a crucial role in regulating the planet's temperature and distributing heat around the globe. With only 30% of the planet covered in water, the exoearth may experience more extreme temperature changes between day and night.

The presence of plate tectonics is also a crucial factor to consider. Plate tectonics on this exoearth would likely behave similarly to Earth's, with the movement of oceanic plates creating new oceans and breaking apart existing ones. However, the positioning of these oceans may be different due to the reversed land-to-water ratio.

The distribution of continents and oceans also plays a significant role in the evolution of life on a planet. The presence of large landmasses can create barriers for species to migrate and can lead to the development of unique ecosystems. On this exoearth, the distribution of land and water would be reversed, potentially leading to different evolutionary paths for organisms.

Overall, the possibilities and implications of an exoearth with a reversed land-to-water ratio are vast and complex. It would be a fascinating world to explore and study, and I believe we can learn a lot about our own planet by imagining and studying hypothetical exoplanets such as this one.