How deep a valley or trench would be needed on mars to provide the same atmospheric pressure as 6 km above...
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Atmospheric pressure increases the deeper you go & the highest growing plants on earth have been found at a height of 6 km so how deep a trench would we need on Mars to provide similar air pressure?
World’s highest plants discovered growing 6km above sea level
mars colonization atmosphere terraforming plants
edited 4 hours ago
Russell Borogove
78.4k2256340
asked 5 hours ago
Pelinore
1314
|
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up vote
1
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Atmospheric pressure increases the deeper you go & the highest growing plants on earth have been found at a height of 6 km so how deep a trench would we need on Mars to provide similar air pressure?
World’s highest plants discovered growing 6km above sea level
mars colonization atmosphere terraforming plants
edited 4 hours ago
Russell Borogove
78.4k2256340
asked 5 hours ago
Pelinore
1314
There's basically no O2 in the Martian atmosphere so no matter how deep you dig your trench, you still won't get an Earthlike atmosphere.
– Organic Marble
5 hours ago
That would be a different question, I'm only asking about air pressure in this instance.
– Pelinore
5 hours ago
Then you need to edit your question and make that clear. You just say "conditions".
– Organic Marble
5 hours ago
No I don't, the question is very clear, it asks for the depth needed to give the air density, the comments you've misinterpreted as the question are there to give context to the question (what prompted me to ask).
– Pelinore
4 hours ago
1
Edited to clarify. Both of you play nice.
– Russell Borogove
4 hours ago
|
show 2 more comments
up vote
1
down vote
favorite
up vote
1
down vote
favorite
Atmospheric pressure increases the deeper you go & the highest growing plants on earth have been found at a height of 6 km so how deep a trench would we need on Mars to provide similar air pressure?
World’s highest plants discovered growing 6km above sea level
mars colonization atmosphere terraforming plants
edited 4 hours ago
Russell Borogove
78.4k2256340
asked 5 hours ago
Pelinore
1314
Atmospheric pressure increases the deeper you go & the highest growing plants on earth have been found at a height of 6 km so how deep a trench would we need on Mars to provide similar air pressure?
World’s highest plants discovered growing 6km above sea level
mars colonization atmosphere terraforming plants
mars colonization atmosphere terraforming plants
edited 4 hours ago
Russell Borogove
78.4k2256340
asked 5 hours ago
Pelinore
1314
edited 4 hours ago
Russell Borogove
78.4k2256340
asked 5 hours ago
Pelinore
1314
edited 4 hours ago
Russell Borogove
78.4k2256340
edited 4 hours ago
Russell Borogove
78.4k2256340
edited 4 hours ago
Russell Borogove
78.4k2256340
78.4k2256340
asked 5 hours ago
Pelinore
1314
asked 5 hours ago
Pelinore
1314
asked 5 hours ago
Pelinore
1314
1314
There's basically no O2 in the Martian atmosphere so no matter how deep you dig your trench, you still won't get an Earthlike atmosphere.
– Organic Marble
5 hours ago
That would be a different question, I'm only asking about air pressure in this instance.
– Pelinore
5 hours ago
Then you need to edit your question and make that clear. You just say "conditions".
– Organic Marble
5 hours ago
No I don't, the question is very clear, it asks for the depth needed to give the air density, the comments you've misinterpreted as the question are there to give context to the question (what prompted me to ask).
– Pelinore
4 hours ago
1
Edited to clarify. Both of you play nice.
– Russell Borogove
4 hours ago
|
show 2 more comments
There's basically no O2 in the Martian atmosphere so no matter how deep you dig your trench, you still won't get an Earthlike atmosphere.
– Organic Marble
5 hours ago
That would be a different question, I'm only asking about air pressure in this instance.
– Pelinore
5 hours ago
Then you need to edit your question and make that clear. You just say "conditions".
– Organic Marble
5 hours ago
No I don't, the question is very clear, it asks for the depth needed to give the air density, the comments you've misinterpreted as the question are there to give context to the question (what prompted me to ask).
– Pelinore
4 hours ago
1
Edited to clarify. Both of you play nice.
– Russell Borogove
4 hours ago
There's basically no O2 in the Martian atmosphere so no matter how deep you dig your trench, you still won't get an Earthlike atmosphere.
– Organic Marble
5 hours ago
There's basically no O2 in the Martian atmosphere so no matter how deep you dig your trench, you still won't get an Earthlike atmosphere.
– Organic Marble
5 hours ago
That would be a different question, I'm only asking about air pressure in this instance.
– Pelinore
5 hours ago
That would be a different question, I'm only asking about air pressure in this instance.
– Pelinore
5 hours ago
Then you need to edit your question and make that clear. You just say "conditions".
– Organic Marble
5 hours ago
Then you need to edit your question and make that clear. You just say "conditions".
– Organic Marble
5 hours ago
No I don't, the question is very clear, it asks for the depth needed to give the air density, the comments you've misinterpreted as the question are there to give context to the question (what prompted me to ask).
– Pelinore
4 hours ago
No I don't, the question is very clear, it asks for the depth needed to give the air density, the comments you've misinterpreted as the question are there to give context to the question (what prompted me to ask).
– Pelinore
4 hours ago
1
1
Edited to clarify. Both of you play nice.
– Russell Borogove
4 hours ago
Edited to clarify. Both of you play nice.
– Russell Borogove
4 hours ago
|
show 2 more comments
1 Answer
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up vote
3
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Mars' atmosphere scale height is, depending on who you ask, 10.8 to 11.1 km.
- Pressure at the bottom of Hellas Planitia: 1.16 kPa
- Earth sea level: 101.3 kPa
- Earth 6km altitude: ~50 kPa.
So we need air pressure to increase by a factor of about 43; ln 43 = 3.76 scale heights -- so we need a trench about 41km deep. Start digging!
This gets equivalent air pressure, but there's almost no oxygen. Partial pressure of CO2 on the other hand is about 2400 times higher -- Mars's surface level atmosphere offers more CO2 than Earth as it is.
answered 4 hours ago
Russell Borogove
78.4k2256340
"Start digging!" got my shovel, just waiting on my ticket from SpaceX :)
– Pelinore
4 hours ago
And note that at this depth your trench almost certainly collapses in on itself, the rock can't take the load.
– Loren Pechtel
3 hours ago
add a comment |
1 Answer
1
active
oldest
votes
1 Answer
1
active
oldest
votes
active
oldest
votes
active
oldest
votes
up vote
3
down vote
Mars' atmosphere scale height is, depending on who you ask, 10.8 to 11.1 km.
- Pressure at the bottom of Hellas Planitia: 1.16 kPa
- Earth sea level: 101.3 kPa
- Earth 6km altitude: ~50 kPa.
So we need air pressure to increase by a factor of about 43; ln 43 = 3.76 scale heights -- so we need a trench about 41km deep. Start digging!
This gets equivalent air pressure, but there's almost no oxygen. Partial pressure of CO2 on the other hand is about 2400 times higher -- Mars's surface level atmosphere offers more CO2 than Earth as it is.
answered 4 hours ago
Russell Borogove
78.4k2256340
"Start digging!" got my shovel, just waiting on my ticket from SpaceX :)
– Pelinore
4 hours ago
And note that at this depth your trench almost certainly collapses in on itself, the rock can't take the load.
– Loren Pechtel
3 hours ago
add a comment |
up vote
3
down vote
Mars' atmosphere scale height is, depending on who you ask, 10.8 to 11.1 km.
- Pressure at the bottom of Hellas Planitia: 1.16 kPa
- Earth sea level: 101.3 kPa
- Earth 6km altitude: ~50 kPa.
So we need air pressure to increase by a factor of about 43; ln 43 = 3.76 scale heights -- so we need a trench about 41km deep. Start digging!
This gets equivalent air pressure, but there's almost no oxygen. Partial pressure of CO2 on the other hand is about 2400 times higher -- Mars's surface level atmosphere offers more CO2 than Earth as it is.
answered 4 hours ago
Russell Borogove
78.4k2256340
"Start digging!" got my shovel, just waiting on my ticket from SpaceX :)
– Pelinore
4 hours ago
And note that at this depth your trench almost certainly collapses in on itself, the rock can't take the load.
– Loren Pechtel
3 hours ago
add a comment |
up vote
3
down vote
up vote
3
down vote
Mars' atmosphere scale height is, depending on who you ask, 10.8 to 11.1 km.
- Pressure at the bottom of Hellas Planitia: 1.16 kPa
- Earth sea level: 101.3 kPa
- Earth 6km altitude: ~50 kPa.
So we need air pressure to increase by a factor of about 43; ln 43 = 3.76 scale heights -- so we need a trench about 41km deep. Start digging!
This gets equivalent air pressure, but there's almost no oxygen. Partial pressure of CO2 on the other hand is about 2400 times higher -- Mars's surface level atmosphere offers more CO2 than Earth as it is.
answered 4 hours ago
Russell Borogove
78.4k2256340
Mars' atmosphere scale height is, depending on who you ask, 10.8 to 11.1 km.
- Pressure at the bottom of Hellas Planitia: 1.16 kPa
- Earth sea level: 101.3 kPa
- Earth 6km altitude: ~50 kPa.
So we need air pressure to increase by a factor of about 43; ln 43 = 3.76 scale heights -- so we need a trench about 41km deep. Start digging!
This gets equivalent air pressure, but there's almost no oxygen. Partial pressure of CO2 on the other hand is about 2400 times higher -- Mars's surface level atmosphere offers more CO2 than Earth as it is.
answered 4 hours ago
Russell Borogove
78.4k2256340
answered 4 hours ago
Russell Borogove
78.4k2256340
answered 4 hours ago
Russell Borogove
78.4k2256340
answered 4 hours ago
Russell Borogove
78.4k2256340
78.4k2256340
"Start digging!" got my shovel, just waiting on my ticket from SpaceX :)
– Pelinore
4 hours ago
And note that at this depth your trench almost certainly collapses in on itself, the rock can't take the load.
– Loren Pechtel
3 hours ago
add a comment |
"Start digging!" got my shovel, just waiting on my ticket from SpaceX :)
– Pelinore
4 hours ago
And note that at this depth your trench almost certainly collapses in on itself, the rock can't take the load.
– Loren Pechtel
3 hours ago
"Start digging!" got my shovel, just waiting on my ticket from SpaceX :)
– Pelinore
4 hours ago
"Start digging!" got my shovel, just waiting on my ticket from SpaceX :)
– Pelinore
4 hours ago
And note that at this depth your trench almost certainly collapses in on itself, the rock can't take the load.
– Loren Pechtel
3 hours ago
And note that at this depth your trench almost certainly collapses in on itself, the rock can't take the load.
– Loren Pechtel
3 hours ago
add a comment |
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There's basically no O2 in the Martian atmosphere so no matter how deep you dig your trench, you still won't get an Earthlike atmosphere.
– Organic Marble
5 hours ago
That would be a different question, I'm only asking about air pressure in this instance.
– Pelinore
5 hours ago
Then you need to edit your question and make that clear. You just say "conditions".
– Organic Marble
5 hours ago
No I don't, the question is very clear, it asks for the depth needed to give the air density, the comments you've misinterpreted as the question are there to give context to the question (what prompted me to ask).
– Pelinore
4 hours ago
1
Edited to clarify. Both of you play nice.
– Russell Borogove
4 hours ago