ELI5: Topographic Prominence

I thought that topographical prominence would be a measure of base to summit in a way that's relevant, but it seems like while it's KIND OF that, it's just a mess of convoluted calculations that make it less than practical or useful. For example, Everest's and Aconcagua's prominence are the same as their elevation, by the technical definition, which doesn't seem useful at all. Also the key col of Denali, from which its prominence is calculated, is near Lake Nicaragua, which seems irrelevant for any practical application. So what gives? Am I missing something or is this a lousy definition for a concept that is actually important and interesting?

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πŸ‘€︎ u/EphemeralOcean
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What is topographic prominence? Just the distance from summit to highest col?

Hi all. Maybe some of you here can explain this better than the wiki page.

So what is prominence? And why can it be a better way of ranking peaks than just summit elevation above sea level?

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πŸ‘€︎ u/lardtazium
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Old Texas topographic prominence map shows where to find the steepest cliffs (not necessarily absolute elevation). Steepest cliffs = beautiful sights!
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πŸ‘€︎ u/LatAmExPat
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Does a measure similar to 'topographic prominence' exist for "lone mountains"?

So for mountains there is a measure of "elevation" (with convenient wikipedia list of highest peaks), a measure of topological prominence(again with a wikipage) and topological isolation(wiki).

But none of these measures look at whether a peak is towering over the landscape. For example, peaks like mt everest or mt blanc are part of a mountain range with many more peaks of a similar height.

What i'm looking for though, is a measure(or a convenient wikipedia page with a list of them) of how much a mountain is towering over its surroundings, with impressive peaks such as Mt. Fuji, Mt. Rainier, or Mt. Kilimanjaro towering 2000-4000m over the landscape around them.

has such a measure ever been made? or is there a convenient place where i can find a collection of such peaks?

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πŸ‘€︎ u/asphias
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Old Texas topographic prominence map shows where to find the steepest cliffs (not necessarily absolute elevation). Steepest cliffs = beautiful sights!
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List of peaks by topographic prominence: Everest, Aconcagua, McKinley, Kilimanjaro... en.wikipedia.org/wiki/Lis…
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If your body was a topographical map, what would be some of the names of the prominent features on it?
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πŸ‘€︎ u/SofaKingStewPit
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ELI5: How does topographical prominence work?

I’ve read multiple times on how a mountain can have a certain prominence in relation to nearby peaks, but can’t fully understand the math that determines this.

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3D visualisation of the world's top 25 mountain peaks by topographical prominence twitter.com/CraigTaylorGI…
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An r/AskHistorians thread from the KRTL about the Entente's unlikely victory in the Second Weltkrieg (including several KRTL Wikipedia entries)

So, how exactly did the Entente powers survive 1942 and end up winning the war?

We have been discussing the Second Weltkrieg in our high school class this last week (spoiler I live in New England so we have a lot more to talk about then the rest of the country) and when we reached 1942 I was thrown for a loop. In class we went from the German collapse in early 1942, to the Entente capture of Rome, the raid on Ireland, and victory in India, all of which takes place at the least 6 months after the fall of Berlin. So, what happened in the meantime? How did the Entente pull through the fall of the Reichspact and survive enough to start winning?

*****

Wow! What a great question, and one that is often glanced over in many public school settings and popular discussions of the war. Unfortunately for you and a lot of other students of the Second Weltkrieg, we are painted a much rosier picture of Entente victories then was actually the case. The Entente's "noble crusade" to reclaim Europe from the Totalist Menace was constantly fueled by the blood of hundreds of thousands of her soldiers, especially in the crucial year of 1942. It is often easy to forget that following the Second Weltkrieg, France, for instance, was so exhausted with war as a whole that throughout the 1950's their primary diplomatic focus was to avoid costly entanglements the world over. (Much to the chagrin of their British allies) As you pointed out, before the Entente could secure those crucial victories mentioned above, there was a six month period where the Entente could only hope to survive against the incoming onslaught of the victorious Communard forces from the North. They had to buy this survival with some of the greatest sacrifices they would make yet.

A small side note, we will be following this answer through the perspective of Republican France throughout this period, whenever you read "Republican forces" think of them. This makes sense to me, a historian, because the French were the most heavily engaged member of the Entente, who also took command of the majority of the more important fronts during the war in Europe especially. If history is written by the victor, the victor is most definitely the one who sacrificed the most for that victory.

So without further ado, let me try and answer you the question you essentially ask: How did the Entente powers survive after the fall of Berlin?

Background

*"We needed a Napoleon, a Trafalgar, and a Leipzig just to survive. W

... keep reading on reddit ➑

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What is a base of an mountain?

Just wanted to ask this question to satisfy my curiosity. On what is considered the base of the mountain.

Obviously I understand that generally a base is where the countour lines are flat or gentle slopes. Or you can call the prominence its base or an base camp is generally considered its base. Other then that is there other ways to define a base?

We all must have heard that mauna kea is said to be taller from the base then Everest. But my question is. Is base of everest or mauna kea well defined? People just seems to compare the altitude of Everest to dry prominence of mauna kea and the vertical relief compared the deepest point. The metrics doesn't seem equivalent to me. Are they just like comparing two different things?

Mauna kea seems has ample flatter surface to consider its base topographically. While everest is part of an much larger Himalayan range.

I wonder what geology plays part into it. I have mostly heard that Everest sits on a platue which isn't geology right. While mauna kea is on ocean floor.

Any one who knows more then me on this topic feel free to put your thoughts forward.

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SERIOUS: This subreddit needs to understand what a "dad joke" really means.

I don't want to step on anybody's toes here, but the amount of non-dad jokes here in this subreddit really annoys me. First of all, dad jokes CAN be NSFW, it clearly says so in the sub rules. Secondly, it doesn't automatically make it a dad joke if it's from a conversation between you and your child. Most importantly, the jokes that your CHILDREN tell YOU are not dad jokes. The point of a dad joke is that it's so cheesy only a dad who's trying to be funny would make such a joke. That's it. They are stupid plays on words, lame puns and so on. There has to be a clever pun or wordplay for it to be considered a dad joke.

Again, to all the fellow dads, I apologise if I'm sounding too harsh. But I just needed to get it off my chest.

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Blind Girl Here. Give Me Your Best Blind Jokes!

Do your worst!

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This subreddit is 10 years old now.

I'm surprised it hasn't decade.

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Dropped my best ever dad joke & no one was around to hear it

For context I'm a Refuse Driver (Garbage man) & today I was on food waste. After I'd tipped I was checking the wagon for any defects when I spotted a lone pea balanced on the lifts.

I said "hey look, an escaPEA"

No one near me but it didn't half make me laugh for a good hour or so!

Edit: I can't believe how much this has blown up. Thank you everyone I've had a blast reading through the replies πŸ˜‚

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What starts with a W and ends with a T

It really does, I swear!

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Why did Karen press Ctrl+Shift+Delete?

Because she wanted to see the task manager.

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Heard they've been doing some shady business.

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What is the scariest tree?

BamBOO!

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What is a a bisexual person doing when they’re not dating anybody?

They’re on standbi

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I was almost upset that my coffee tasted like dirt today

but then I remembered it was ground this morning.

Edit: Thank you guys for the awards, they're much nicer than the cardboard sleeve I've been using and reassures me that my jokes aren't stale

Edit 2: I have already been made aware that Men In Black 3 has told a version of this joke before. If the joke is not new to you, please enjoy any of the single origin puns in the comments

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Geddit? No? Only me?
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I wanna hear your best airplane puns.

Pilot on me!!

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E or ß?
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Which actor drives the least?

Christopher Walken

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What did Spartacus say when the lion ate his wife?

Nothing, he was gladiator.

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Pun intended.
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No spoilers
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Should we create an English word for the 'day after tomorrow'?

Or would that be too forward thinking?

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Covid problems
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These aren't dad jokes...

Dad jokes are supposed to be jokes you can tell a kid and they will understand it and find it funny.

This sub is mostly just NSFW puns now.

If it needs a NSFW tag it's not a dad joke. There should just be a NSFW puns subreddit for that.

Edit* I'm not replying any longer and turning off notifications but to all those that say "no one cares", there sure are a lot of you arguing about it. Maybe I'm wrong but you people don't need to be rude about it. If you really don't care, don't comment.

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Spi__
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What did 0 say to 8 ?

What did 0 say to 8 ?

" Nice Belt "

So What did 3 say to 8 ?

" Hey, you two stop making out "

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I had a vasectomy because I didn’t want any kids.

When I got home, they were still there.

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The Ancient Romans II
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Unreached People Group of the Week - Tigre of Eritrea

This week my wife and I got to eat lunch with a wonderful family from Eritrea. So I decided to finally do a people group from there! Meet the Tigre of Eritrea!

Region: Eritrea

https://preview.redd.it/1ubzrlnf0y381.png?width=425&format=png&auto=webp&s=7c2d10ee5c3db5fae2327b4436b1530fa571a800

Index Ranking (Urgency): 22

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Climate: Based on variations in temperature, Eritrea can be broadly divided into three major climate zones: the temperate zone, subtropical climate zone, and tropical climate zone. The climate of Eritrea is shaped by its diverse topographical features and its location within the tropics. The diversity in landscape and topography in the highlands and lowlands of Eritrea result in the diversity of climate across the country. The highlands have temperate climate throughout the year. The climate of most lowland zones is arid and semiarid. The distribution of rainfall and vegetation types varies markedly throughout the country. Eritrean climate varies on the basis of seasonal and altitudinal differences.

Eritrean Highlands

Terrain: Eritrea can be split into three ecoregions. To the east of the highlands are the hot, arid coastal plains stretching down to the southeast of the country. The cooler, more fertile highlands, reaching up to 3,000 m, have a different habitat. Habitats here vary from the sub-tropical rainforest at Filfil Solomona to the precipitous cliffs and canyons of the southern highlands. The Afar Triangle or Danakil Depression of Eritrea is the probable location of a triple junction where three tectonic plates are pulling away from one another. The highest point of the country, Emba Soira, is located in the center of Eritrea, at 3,018 meters (9,902Β ft) above sea level.

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Environmental Issues: Eritrea is vulnerable to droughts, floods, increased variability in rainfall patterns and/or reduced precipitation, soil erosion, desertification and land degradation.

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Languages: Nine different languages are spoken by the nine recognised ethnic groups, the most widely spoken language is Tigrinya, the others are Arabic, Tigre, Afar, Beja, Bilen, Kunama, Nara, and Saho. Tigrinya, Arabic, and English serve as the three working languages.

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Government Type: Unitary one-party presidential republic under a totalitarian dictatorship

People: Tigre

... keep reading on reddit ➑

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I'd like to dedicate this joke to my wisdom teeth.

[Removed]

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Where do you find a cow with no legs?

Where ever you left it πŸ€·β€β™€οΈπŸ€­

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I did it, I finally did it. After 4 years and 92 days I went from being a father, to a dad.

This morning, my 4 year old daughter.

Daughter: I'm hungry

Me: nerves building, smile widening

Me: Hi hungry, I'm dad.

She had no idea what was going on but I finally did it.

Thank you all for listening.

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It this sub dead?

There hasn't been a post all year!

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Naan-negotiable
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How do you stop Canadian bacon from curling in your frying pan?

You take away their little brooms

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Remember that joke I told you about the chiropractor?

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