@@oitubeman1019 When the seas were both connected, their respective watersheds were also merged in one. Black Sea : Danube, Dniepr, Dniestr, Don, etc. Capsian Sea : Volga Aral Sea : Amu-Daria and Syr-Daria. Plus, When Yneissey river was blocked by the ice-sheet, some outflows periods toward Aral sea were possible. Thus, most of Eurasia was part of this giant watershed between Western Europe, Himalaya and Arctic Ocean
@@ap6480 it was connected to the med, which in turn is connected to the Atlantic Ocean, if the bodys of water are connected then reasonably they are essentially the same body of water
Now in Kazakhstan the condition of the Aral Sea is significantly poor; the sea is drying at a low rate at this time. But it seems to me that this is drying every thousand
When Mongols chased shah of Khorezm, he tried to seek refuge on some... island in Caspian sea, later turned out to be "leprosy island". Legends say that island was near modern day Derbent, and there is no islands here now.
Probably only some unknown roman explorers, but not any roman settlements, as the Caucasus played a very small and brief role on the Roman Empire. Legends spawned from it but overall the Caucases were too removed from the empire.
yeah but in the past there were no dams to block water supplies from Syr-Daria and Amu-Daria. The Aral Sea did not really vanished, it turned to a swamp such as the Okavango delta
Yep, it has been fed by various rivers that have come and gone or changed course, it is 2/3rds gone or more now because of dams and heavy irrigation use from its two main rivers, it is actually higher now than its low point a few years ago due to them agreeing to let more water go downstream.
As I've understand: 6:55 Neocaspian transgression 6:37 Late Khvalynian transgression 6:11 Early Khvalynian transgression 5:00 Late Khazarian transgression 2:12 Early Khazarian transgression Sorry if not correctly named, this is how transgressions are commonly referred to in Soviet paleogeography. But i've noticed some different picture in textbooks. Late Hazarian was not as big as Early Hazarian, whereas Early Khvalynian was even bigger than Early Hazarian. It looks like the second and third transgressions in that video are switched. In other cases shorelines almost the same as drawed in textbooks. On other hand quick view to the papers reveals slightly different classifications and shorelines (maybe it is still a matter for debate?), though only abstracts are accesible to me. I am not a professional in this field, but i think this model could be a good research that revise some details about the history of Caspian Sea. As for an example I quickly found similar paper - link.springer.com/article/10.1134/S0097807821060051 Another paper discuss early caspian settlements (as the topic was adressed in earlier comment) - www.sciencedirect.com/science/article/abs/pii/S104061820900398X Have a good day!
@@Kaldisti i am magyar speaker from hungary ár= flood árral=by flood lé=fluid, LIquid (flood water) k=plural in magyar lék=fluids, waters coming down=le lék árral = fluids by flood =lake aral tó=lake úr=sir, in power/erő hon=home in magyar tó úr hon=tóúrhon= lakelords home this 3 lake area is TURAN=tóúrhon=lakelords home in magyar
Interestingly, now the Aral Sea has dried up completely, well, almost, there are several lakes left. Irrational use of water from the Amudarya and Syrdarya.
To all europeans and a lot of indians, afghans and iranians, this is were our ancerstors lived. Crazy to think, not that time ago, they lived in places that no lo ger exist as they were. Now a warren place, once a place birth of civilizations. Central Asia is so interesting.
@@Georgian1121 Well, mostly from modern day Ukraine and Lower Don really. That was their original homeland. Nevertheless, many Europeans and most Indians have only a minority ancestry from those.
@@malendil "europeans " came to europe through modern russia. None of them came through anatolia. They surely had to cross ural. The place map shows is Not original place of indo-europeans
@@Georgian1121 No. Note that we do not talk genetics of the modern European population here, that is more complicated and heavily depends on the time depth used. However the common root of Indo-European languages (Proto Indo-European) was spoken in Eastern Europe, on the Pontic steppe - forest steppe area. Among the extant branches of the language family only the speakers of ancestral Indo-Iranian crossed the Ural (either the mountains or the river) when they went east. there is a clear track of archeological cultures showing this migration. Corded Ware -> Fatyanovo/Abashevo -> Sintashta -> Andronovo.
@@malendil in europe, root of indo-european languages were Not proto-indo-europeans . there might be ancestors of indo-europeans somewhere in asia, but europe especially southern and south-eastern part was populated by whole different civilization, they were pelasgians, trojans, etruscans etc. and spoke similar languages. Even plato mentioned them many times. He calls them "barbarians" , in that age barbarian meant foreighner, different. That civilization was extremly developed (especially pelasgians, in southern greece) but all of them got destroyed because of low population density and volcanic eruption near crete island. Proto-Georgian people also lived here dozens of centuries earlier than indo-europeans came to europe. That is why georgian is not even connected to indo-europeans languages. Same for basque language. Only connection between proto-europeans and indo-europeans is their living place.
A lovely illustration of the effects of ice ages roughly every 25,000-40,000 years. I was startled that the Caspian and Aral Seas disappeared regularly during the period of ice ages. Liked and subscribed!
Kerch strait is shallower, so the Don river to outflow toward the Black Sea needs to fill partially the Azov sea. btw, the lake was probably surrounded by numerous swamps
Hmm. I'm still in doubt. There are several issues 1. Several times seas connected through Kuma-Manych depression and Uzboy, but their levels not equal. It's contrintuitive and contradicts to the laws of physics. How sea levels can conserve despite connection and water flow from one sea to another? 2. Several times Aral and Caspian regressed and progressed almost synchronically was shown. But there is one river that flows either to Caspian or to Aral. Thus, I expected to see when Caspian level rises then Aral regression occurs and vice versa. But even closer to our age, when Volga river not starts from an ice sheet, both Aral and Caspian depicted progressed together. 3. More about historical times. There was plethora of states in that region. That time is well documented. While reading historical literature i don't remember that authors mention progressing of Caspian. Moreover, the was cities (and still is) on the shore of Caspian. One of them, Astrakhan, previously Haji-Tarkhan, previously Itil,Saqsin etc. localized on Volga river's delta and it inhabited since 8 century AD. So I feel a cognitive dissonance. How can economy and sea trade of entire states work when shore line changing all the time? Maybe your model miss something?
Hi, 1. These connections was rather outflows than connected seas. Imagine lake mountains which outflow to the lower ones through rivers. You should checkout this publication which explains better than I :p www.researchgate.net/publication/317871537_Modelling_the_provenance_of_detritus_flushed_through_the_Strait_of_Bosphorus_Turkey_during_early_Holocene_outflow_from_the_Black_Sea_to_the_world_ocean 2. Regression - transgression cycles of different basins are complex. We have to take in account the evaporation rate on each basin, water supplies from all watersheds. If these cycles are synchronous between Aral and Caspian, this means all basins were affected by the same way (especially during worldwide climate change). 3. If you checkout this publication (www.sciencedirect.com/science/article/pii/S001282521830415X), you'll see Caspian sea level changed by 3 meters during the 20th century, which resulted coastline moves in kilometers-scale around Astrakhan region, without noticiable economic issues. Also, keep in mind this simulation was using modern elevation dataset, with thousands years of sedimentation and erosion, thus simulated older coastlines was not fully accurate.
@@Kaldisti that was really comprehensive answer! Thank you very much! One thing which i would to clarify is the costline of Caspian in Middle Ages. Changing costline in 20 century does not affect economy because Caspian of that time was shared between only two states - Iran and USSR. Plus that age is industrial, there was modern trade routes. In contrast, in Middle ages different states even different cultures had Caspian costline and north-to-south trade routes was more relevant. Economy of that time was not industrial. Plus level changed according to your simulation much more than 3 m resulting increase of the sea area more than 10%. On the other side maybe I just overestimate its impact on economy. If historical evidences of the progression will be found that would great work to publish :) Good day!
@@Asterlibra I don't think in older times the Caspian level change affected so much economy. In the case of Astrakhan, its port is located along Volga river, whatever the Caspian sea level. if the sea retreats, trade ships could still reach Astrakhan. Also, trade roads were caravans, which could adapt their trip regarding sea level. Plus, I saw major cities in this region were not built in flooding plains but outside river major beds. This spare them from sea level oscillations
It kinda fascinates me,that couple MYA my homeland was completely submerged under the ocean,there was only small island(nowadays it is northern Nakhchivan and also part of Small caucasus mountains) and as the time passed it turned into entirety of Azerbaijan
The model appears to be based primarily on an elevation map and an approximation of global sea level, and therefore does not take into account the flow of most ancient rivers(like Uzboy for example en.wikipedia.org/wiki/Uzboy ) and the effect of evaporation, which depends on climate, salinity and water surface area. Also, when the sea re-floods the area a large amount of salt from the soils dissolves in the sea water, changing the salinity of the entire sea, sometimes by several percent. Higher salinity slows down the evaporation process and reduces biodiversity. As a result - the water becomes less "green", the albedo (reflectivity) of the water decreases. Therefore the median of the water temperature rises, but also slows down evaporation. So its a complex process which was not took into account, despite the fact that we have a live natural modern evidences of this - Qarabogazgol and the Aral Sea
" the flow of most ancient rivers(like Uzboy for example en.wikipedia.org/wiki/Uzboy ) and the effect of evaporation, which depends on climate, salinity and water surface area. " The recorded sea level in sediments is the result of these processes.
@@Kaldisti The model shows many small reservoirs in the Volga delta, for example, which in the modern climate become salt marshes in 2-3 years. The model shows their stable existence for hundreds and even thousands of years, which seems impossible according to the hydrology. I doubt there are "recorded sea level in sediments" for each of such "puddle". Anyway, the overall idea was represented correctly. Thank you!
Noticed two doubtful things: 1) Very shallow Azov sea bassin remains flooded all the time. Meanwhile it's known that at least in times of Argonauts (1500 BC - 1000 BC) it was a swampy plain where the entrance to the Aid underworld realm was located, Ortheus went there to save his beloved Euridica. Now this cave lies 15 meters under the sea surface. Do not underestimate old myths, Schliemann found Troy with them! 2) The Caspian Sea in 0 AD - 1000 AD missed its Northern 1/3, really? And how about sea trade in this region, mentioned by Arab sources?
Greek mythology and distant foreign sources are not what we could call reliable sources. Kerch strait is shallower than the Azov sea, so the presence of at least a lake is necessary for the Don river to flow outward. It does not exclude the extent of swamp areas of course, there was probably a mix of both. About sea trade, if you refer to Astrakhan, with a lower Caspian Sea, traders could reach the city through the Volga river.
Research shows black lake had flooded with Mediterranean sea water at about 6000BC. just before that it may have been a much smaller freshwater lake. Civilization already spawned there.
Hey Kaldisti, Im doing a video on the Caspian Sea, would you mind if I show parts of your video in my video? I'll provide on screen credit and a link to your channel if you wish! Its a really great video you've made!
Нам учительница по Кубановедению (урок краеведения в нашем регионе России «Краснодарский край»), что при образовании океана из Каспийского и Чёрного морей прикавказье (кубанскую равнину у гор Кавказа) полностью затапливало, т.е. был не просто пролив в Азовское море, а целый, реально огромный океан В подтверждение этого: при археологических раскопках и тд постоянно находят окаменелости разных морских обитателей
It would be wonderful if the Manich could be revived as a shipping straight and conduit to the Caspian sea and bring in water to replenish it, obviously right now isn't an option with the war
@@charlesburgoyne-probyn6044 There is an artificial channel between the Don and Volga rivers -- Volga-Don Canal. It's deep enough that the Russian warship "Novocherkask" could bring ammo and Shaheed drones from Iran to Feodosia, to be blown apart by the Ukrainians -- happened just before New Year.
The melting of the Eurasian Ice-fields coincided with the rising of the world's oceans. An event that had a significant effect on the world's climate and the emerging civilisations in Europe, North America and the Middle East. We can only guess on that impact and speculate why only mega fauna survived in the Americas and disappeared as well as the Clovis people, whilst European/ Asian and Middle Eastern civilisation centres in the main survived ( I know it is contestable) I would love a historian like Barry Cunliffe to comment and speculate along with us why, how and why not things happened.
I cant see any systematic correlation between tempreature and the size of the caspian lake/sea. I would expect that whenever water in the north atlantic warms up, the caspian lake expands, but there seem to be more influences than that. (I guess more water also vaporizes from the caspian lake than...)
Imagine what a civilization developing on the Volga would have to deal with when the Caspian floods their lands. We could see a dutch-style system of dikes and dams to block off flooding in certain parts where development was high, and then they start to use the water that previously posed an existential danger, but what would happen when the Caspian receded? What would the people do in that case, when the water that sourced their crops and powered their commerce started drying up?
Why do the lakes expand during cold periods? Is it affecting the climate to cause more rain in the region than when it's warm? I would have thought the opposite.
Caspian sea: Can I into empire? Russia: no Caspian sea: then its war *Caspian sea trys to beat russia 5 times* Caspian sea: lets have a peace *Meanwhile Aral sea* Aral sea: Can Be independent? Kazakstan and uzbekistan: No Aral sea: then its independent time. *Soviet union rise up* Aral sea: h- *PUNCH* Soviet union: You talk too much kraut. Aral west and east: I HATE YOU.
Currently, meltwater is drowning half of the territory of Kazakhstan, the water has risen to record levels and is rapidly flowing to the northern borders of the Caspian Sea...😢
i am magyar speaker from hungary ár= flood árral=by flood lé=fluid, LIquid (flood water) k=plural in magyar lék=fluids, waters coming down=le lék árral = fluids by flood =lake aral tó=lake úr=sir, in power/erő hon=home in magyar tó úr hon=tóúrhon= lakelords home this 3 lake area is TURAN=tóúrhon=lakelords home in magyar
Very interesting videos. Just two comments. First, the Caspian should oscillate faster, we have the dates very well recorded in recent years, like the last 1200 years. There are many books written on the topic of the level of Caspian. I don't know where the authors got the dating. Also the bridge dividing Caspian into two, south of Karabogaz-gol appeared fully more than once. Second: I can see majour rivers on the simulation: Ural, Don, Dnepr, Danube, but where are Amu-Daria (until recently went into Caspian) and Syr-Daria (into Aral, now into North Aral), and Volga? All missing
Каспий сейчас мелеет, чтобы вскоре опять заполниться. И это природное явление. Однако у нас модно нынче винить в этом коммунистов, что якобы из-за их каналов в Амур-дарье пересыхает Каспий и Арал.
Caspian sea is not connected to the world ocean, its level is entirely rivers dependent and evaporation dependent. So the level changed when precipitations over the Caspian catchment area changed
Does this mean the Aral Sea will eventually return, or is the damage too big for that? I don’t know what the future will bring, but I hope someone from 3024 finds this comment XD
Если это результат научно обоснованной работы, то это грандиозно! Но не объясняет останков пресноводных китов в казахской степи. Вроде бы нет обратного и прямого прорыва Дарданелл в "историческом" (возможном) периоде
sorry, but don't call it an ocean, even in the period of maximum expansion it was smaller than the Mediterranean, which is always and commonly called the Sea. furthermore, for an ocean to be called such, it must have precise characteristics, have constant salt water, the Caspian Sea (even ancient) has just under 1/3 of the salinity of the seas and oceans. an ocean must be between two plates that are moving away from each other or have been, the Caspian Sea has none of these things. a very valid example is the Red Sea, at the moment, according to latest studies, it is in a state of expansion, where its oceanic crust is expanding, through the separation of the two plates, African and Arabian. so don't call it an ocean, otherwise we would have to call the real oceans something else
Black sea and Caspian sea seafloor are made of oceanic crust. Geologically speaking, I can call it an ocean. Furthermore, these are the remnant of the Para-Tethys Ocean, so when I say "paleo-ocean", this is not inaccurate. By the way, there are no objective definition separating seas and ocean. Red sea has an accretion ridge, we call it a sea. Only the size with an undefined threshold makesd the difference. We'd have the same discussion about continents and islands
Полная чушь.Мне было 20 лет когда каспии́ское море постоянно прибывало и увеличивалось в размерах.Я сам наблюдал и видел как как ближе и ближе оно приближалось.Я видел как оно замёрзло до пяти километров от берега.А теперь оно высыхает.Это может быть от того что солнце стало ярче светить и вода быстро испаряется.
![Noob To Max With DRAGON REWORK In Blox Fruits [FULL MOVIE]](http://i.ytimg.com/vi/LnBMOinoOvA/mqdefault.jpg)
Black and Caspian seas: * sea level changes *
Aral sea: LET'S PLAY HIDE AND SEEK
Then what would be the outcome the losers face?
@@Someone111ify huh?
fr. im from caspian sea 😂
Lmao
The Soviets: "I don't want to play with you anymore!"
So, you could sail from Turkmenistan to Spain?
Not Spain, you could sail from Germany to Himalaya, Arctic Ocean or Lake Baikal
@@Kaldisti Explain how
@@oitubeman1019 When the seas were both connected, their respective watersheds were also merged in one.
Black Sea : Danube, Dniepr, Dniestr, Don, etc.
Capsian Sea : Volga
Aral Sea : Amu-Daria and Syr-Daria. Plus, When Yneissey river was blocked by the ice-sheet, some outflows periods toward Aral sea were possible. Thus, most of Eurasia was part of this giant watershed between Western Europe, Himalaya and Arctic Ocean
7,
@Imperator Caesar Traianus Hadrianus Augustus how
RIP Aral Sea, hopefully we shall sea you again
Sea ya later
Imagine living in that time when the Caspian was an ocean
It wasn't an ocean, maybe a real sea
@@ap6480 it was connected to the med, which in turn is connected to the Atlantic Ocean, if the bodys of water are connected then reasonably they are essentially the same body of water
@@brandoncampanaro7571 In what part of the video it is connected to the med?Only the black sea is
@@ap6480 it is connected to the black sea by big ass rivers
@@ap6480 i can rewatcy and find the exact time to point you to if you want it
Now in Kazakhstan the condition of the Aral Sea is significantly poor; the sea is drying at a low rate at this time. But it seems to me that this is drying every thousand
Respect! Must have taken a lot of effort to produce - thanks. Really interesting, and beautifully made.
It’s kind of interesting that the Romans technically could have seen a much smaller Caspian Sea
@@johnperic6860 Probably not, because the Romans didn't settle the Caspian sea. They did have a few tributaries in the Caucasus, but nothing "Roman"
@@luminis-novum They settled Crimea.
@@LucidFL They did not settle the Caspian
When Mongols chased shah of Khorezm, he tried to seek refuge on some... island in Caspian sea, later turned out to be "leprosy island". Legends say that island was near modern day Derbent, and there is no islands here now.
Probably only some unknown roman explorers, but not any roman settlements, as the Caucasus played a very small and brief role on the Roman Empire. Legends spawned from it but overall the Caucases were too removed from the empire.
its kinda insane how the caspian and aral seas keep fluctuating.
Earth: *inhales*
Humanity:
Sweet Jesus your content is pure gold. RUclips doesn't deserve you, this should be displayed in some fancy science centres instead!
Does that mean that the Aral Sea is not damaged beyond the point of return, since it is typical for it to appear and disappear?
yeah but in the past there were no dams to block water supplies from Syr-Daria and Amu-Daria.
The Aral Sea did not really vanished, it turned to a swamp such as the Okavango delta
@@Kaldisti that really puts things into perspective. Thanks!
Yep, it has been fed by various rivers that have come and gone or changed course, it is 2/3rds gone or more now because of dams and heavy irrigation use from its two main rivers, it is actually higher now than its low point a few years ago due to them agreeing to let more water go downstream.
@deanfirnatine7814 really informative thanks 😊
ruclips.net/video/TzEwtGpVULk/видео.htmlsi=a7ZaTP3s6ld2lf5p
As I've understand:
6:55 Neocaspian transgression
6:37 Late Khvalynian transgression
6:11 Early Khvalynian transgression
5:00 Late Khazarian transgression
2:12 Early Khazarian transgression
Sorry if not correctly named, this is how transgressions are commonly referred to in Soviet paleogeography.
But i've noticed some different picture in textbooks. Late Hazarian was not as big as Early Hazarian, whereas Early Khvalynian was even bigger than Early Hazarian. It looks like the second and third transgressions in that video are switched. In other cases shorelines almost the same as drawed in textbooks. On other hand quick view to the papers reveals slightly different classifications and shorelines (maybe it is still a matter for debate?), though only abstracts are accesible to me.
I am not a professional in this field, but i think this model could be a good research that revise some details about the history of Caspian Sea. As for an example I quickly found similar paper - link.springer.com/article/10.1134/S0097807821060051
Another paper discuss early caspian settlements (as the topic was adressed in earlier comment) - www.sciencedirect.com/science/article/abs/pii/S104061820900398X
Have a good day!
You're right, this is the right stratigraphy.
For each step there were only estimated range values of different lake levels, so I had to make choices
@@Kaldisti i am magyar speaker from hungary
ár= flood
árral=by flood
lé=fluid, LIquid (flood water)
k=plural in magyar
lék=fluids, waters coming down=le
lék árral = fluids by flood =lake aral
tó=lake
úr=sir, in power/erő
hon=home in magyar
tó úr hon=tóúrhon= lakelords home
this 3 lake area is TURAN=tóúrhon=lakelords home in magyar
@@mockermuris Folk etymology is seldom correct -- it only distorts the history.
Interestingly, now the Aral Sea has dried up completely, well, almost, there are several lakes left. Irrational use of water from the Amudarya and Syrdarya.
yes man, so unfortunate ):
Нет, каналы тут не виноваты. Это байки либералов, чтобы очернить Советский Союз.
To all europeans and a lot of indians, afghans and iranians, this is were our ancerstors lived. Crazy to think, not that time ago, they lived in places that no lo ger exist as they were. Now a warren place, once a place birth of civilizations.
Central Asia is so interesting.
Indo-europeans are mostly from ural region.
@@Georgian1121 Well, mostly from modern day Ukraine and Lower Don really. That was their original homeland. Nevertheless, many Europeans and most Indians have only a minority ancestry from those.
@@malendil "europeans " came to europe through modern russia. None of them came through anatolia.
They surely had to cross ural.
The place map shows is Not original place of indo-europeans
@@Georgian1121 No. Note that we do not talk genetics of the modern European population here, that is more complicated and heavily depends on the time depth used. However the common root of Indo-European languages (Proto Indo-European) was spoken in Eastern Europe, on the Pontic steppe - forest steppe area. Among the extant branches of the language family only the speakers of ancestral Indo-Iranian crossed the Ural (either the mountains or the river) when they went east. there is a clear track of archeological cultures showing this migration. Corded Ware -> Fatyanovo/Abashevo -> Sintashta -> Andronovo.
@@malendil in europe, root of indo-european languages were Not proto-indo-europeans .
there might be ancestors of indo-europeans somewhere in asia, but europe especially southern and south-eastern part was populated by whole different civilization, they were pelasgians, trojans, etruscans etc. and spoke similar languages.
Even plato mentioned them many times. He calls them "barbarians" , in that age barbarian meant foreighner, different. That civilization was extremly developed (especially pelasgians, in southern greece) but all of them got destroyed because of low population density and volcanic eruption near crete island.
Proto-Georgian people also lived here dozens of centuries earlier than indo-europeans came to europe. That is why georgian is not even connected to indo-europeans languages. Same for basque language.
Only connection between proto-europeans and indo-europeans is their living place.
A lovely illustration of the effects of ice ages roughly every 25,000-40,000 years. I was startled that the Caspian and Aral Seas disappeared regularly during the period of ice ages. Liked and subscribed!
Aral sea 87k years ago: life's good Aral sea now: AAHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHH
a strange map, the Sea of Azov is 13 meters deep and it disappears first... even the ancient Greeks called it a swamp
Kerch strait is shallower, so the Don river to outflow toward the Black Sea needs to fill partially the Azov sea. btw, the lake was probably surrounded by numerous swamps
Hmm. I'm still in doubt. There are several issues
1. Several times seas connected through Kuma-Manych depression and Uzboy, but their levels not equal. It's contrintuitive and contradicts to the laws of physics. How sea levels can conserve despite connection and water flow from one sea to another?
2. Several times Aral and Caspian regressed and progressed almost synchronically was shown. But there is one river that flows either to Caspian or to Aral. Thus, I expected to see when Caspian level rises then Aral regression occurs and vice versa. But even closer to our age, when Volga river not starts from an ice sheet, both Aral and Caspian depicted progressed together.
3. More about historical times. There was plethora of states in that region. That time is well documented. While reading historical literature i don't remember that authors mention progressing of Caspian. Moreover, the was cities (and still is) on the shore of Caspian. One of them, Astrakhan, previously Haji-Tarkhan, previously Itil,Saqsin etc. localized on Volga river's delta and it inhabited since 8 century AD. So I feel a cognitive dissonance. How can economy and sea trade of entire states work when shore line changing all the time? Maybe your model miss something?
Hi,
1. These connections was rather outflows than connected seas. Imagine lake mountains which outflow to the lower ones through rivers. You should checkout this publication which explains better than I :p www.researchgate.net/publication/317871537_Modelling_the_provenance_of_detritus_flushed_through_the_Strait_of_Bosphorus_Turkey_during_early_Holocene_outflow_from_the_Black_Sea_to_the_world_ocean
2. Regression - transgression cycles of different basins are complex. We have to take in account the evaporation rate on each basin, water supplies from all watersheds. If these cycles are synchronous between Aral and Caspian, this means all basins were affected by the same way (especially during worldwide climate change).
3. If you checkout this publication (www.sciencedirect.com/science/article/pii/S001282521830415X), you'll see Caspian sea level changed by 3 meters during the 20th century, which resulted coastline moves in kilometers-scale around Astrakhan region, without noticiable economic issues. Also, keep in mind this simulation was using modern elevation dataset, with thousands years of sedimentation and erosion, thus simulated older coastlines was not fully accurate.
@@Kaldisti that was really comprehensive answer! Thank you very much!
One thing which i would to clarify is the costline of Caspian in Middle Ages. Changing costline in 20 century does not affect economy because Caspian of that time was shared between only two states - Iran and USSR. Plus that age is industrial, there was modern trade routes. In contrast, in Middle ages different states even different cultures had Caspian costline and north-to-south trade routes was more relevant. Economy of that time was not industrial. Plus level changed according to your simulation much more than 3 m resulting increase of the sea area more than 10%.
On the other side maybe I just overestimate its impact on economy. If historical evidences of the progression will be found that would great work to publish :) Good day!
@@Asterlibra I don't think in older times the Caspian level change affected so much economy. In the case of Astrakhan, its port is located along Volga river, whatever the Caspian sea level. if the sea retreats, trade ships could still reach Astrakhan. Also, trade roads were caravans, which could adapt their trip regarding sea level. Plus, I saw major cities in this region were not built in flooding plains but outside river major beds. This spare them from sea level oscillations
@@Kaldisti I've understand. Thanks a lot for the video and especially for the explanation! I really have learned a lot.
@@Kaldisti Also, has the Azov sea never dried up?
amazing videos! love the informational value and music
It kinda fascinates me,that couple MYA my homeland was completely submerged under the ocean,there was only small island(nowadays it is northern Nakhchivan and also part of Small caucasus mountains) and as the time passed it turned into entirety of Azerbaijan
The model appears to be based primarily on an elevation map and an approximation of global sea level, and therefore does not take into account the flow of most ancient rivers(like Uzboy for example en.wikipedia.org/wiki/Uzboy ) and the effect of evaporation, which depends on climate, salinity and water surface area.
Also, when the sea re-floods the area a large amount of salt from the soils dissolves in the sea water, changing the salinity of the entire sea, sometimes by several percent. Higher salinity slows down the evaporation process and reduces biodiversity. As a result - the water becomes less "green", the albedo (reflectivity) of the water decreases. Therefore the median of the water temperature rises, but also slows down evaporation.
So its a complex process which was not took into account, despite the fact that we have a live natural modern evidences of this - Qarabogazgol and the Aral Sea
" the flow of most ancient rivers(like Uzboy for example en.wikipedia.org/wiki/Uzboy ) and the effect of evaporation, which depends on climate, salinity and water surface area. "
The recorded sea level in sediments is the result of these processes.
@@Kaldisti The model shows many small reservoirs in the Volga delta, for example, which in the modern climate become salt marshes in 2-3 years. The model shows their stable existence for hundreds and even thousands of years, which seems impossible according to the hydrology. I doubt there are "recorded sea level in sediments" for each of such "puddle".
Anyway, the overall idea was represented correctly. Thank you!
Can you imagine a satellite photo of it during older times
Yes.
I legit want time travel so we can have satellite views of Earth in past geological eras
Aliens who's Interstellar Empires have existed prior to 120000 BCE would have been able to take such photos of Earth from orbit back then.
It was beautiful.
Your videos are soooo good dude
Hey Kaldisti 👋, When Was The Caspian Sea At It's Height ? Which Year ?
Noticed two doubtful things:
1) Very shallow Azov sea bassin remains flooded all the time. Meanwhile it's known that at least in times of Argonauts (1500 BC - 1000 BC) it was a swampy plain where the entrance to the Aid underworld realm was located, Ortheus went there to save his beloved Euridica. Now this cave lies 15 meters under the sea surface. Do not underestimate old myths, Schliemann found Troy with them!
2) The Caspian Sea in 0 AD - 1000 AD missed its Northern 1/3, really? And how about sea trade in this region, mentioned by Arab sources?
никто не отменял реку волгу, просто низовья находились южнее, но конечно города там подмыло наверняка
Greek mythology and distant foreign sources are not what we could call reliable sources. Kerch strait is shallower than the Azov sea, so the presence of at least a lake is necessary for the Don river to flow outward. It does not exclude the extent of swamp areas of course, there was probably a mix of both.
About sea trade, if you refer to Astrakhan, with a lower Caspian Sea, traders could reach the city through the Volga river.
Адептам глобального потепления - обязательно к просмотру
Research shows black lake had flooded with Mediterranean sea water at about 6000BC. just before that it may have been a much smaller freshwater lake. Civilization already spawned there.
This is true, and when the water became salty the algae in the lake died and turned black. It gave the name to this sea
Цивилизации зарождались и исчезали как аральское море.Ты отстал.
Thanks for the video 📹 very hard job but good video
Hey Kaldisti, Im doing a video on the Caspian Sea, would you mind if I show parts of your video in my video?
I'll provide on screen credit and a link to your channel if you wish!
Its a really great video you've made!
Knowledge is free, have fun ;) a simple quote is OK for me
Knowledge is free, have fun ;) a simple quote is OK for me
@@Kaldisti Big thank you man, Cheers for keeping the EDU content free to use 👍
JG Science??
Нам учительница по Кубановедению (урок краеведения в нашем регионе России «Краснодарский край»), что при образовании океана из Каспийского и Чёрного морей прикавказье (кубанскую равнину у гор Кавказа) полностью затапливало, т.е. был не просто пролив в Азовское море, а целый, реально огромный океан
В подтверждение этого: при археологических раскопках и тд постоянно находят окаменелости разных морских обитателей
Фактически, в миоцене из Венгрии в Аральское море шло море.
Окаменелости на Кубани в основном от мезозойского периода, поэтому они об этом ничего не говорят
Its crazy how gigantic the Caspian and the Aral sea were, also crazy that the Black sea has almost the same shape right now as 100k years ago
Caspian: 📈📈📈📈📈📉📉📉📉📈📈📈📈📈📈📈📈📉📉📉📉📉📉📉📉📉📈📈📈📈📈📈📈📈📈📈📉📉📉📉📉📉📉
I feel space connection
It would be wonderful if the Manich could be revived as a shipping straight and conduit to the Caspian sea and bring in water to replenish it, obviously right now isn't an option with the war
it is
In this case, huge areas will be flooded, including cities. How can this be wonderful?
@@droopstone6594 to keep the Caspian steady as it's shrinking
And Manych is entirely located in Russia. War is obviously cannot be a reason not to build it.
@@charlesburgoyne-probyn6044 There is an artificial channel between the Don and Volga rivers -- Volga-Don Canal. It's deep enough that the Russian warship "Novocherkask" could bring ammo and Shaheed drones from Iran to Feodosia, to be blown apart by the Ukrainians -- happened just before New Year.
I do not know why but i like todays shape of the black sea and looks iconic
Beautiful
great job!
Good video.
Is this what caused the big flood of ancient middle east history?
We always hear how the Aral sea is drained by humans, but it looks like it's regular event and nothing to worry about then.
Of course not, the aral lake takes 1000~500 years to dissapear, it has almost been entirely dried up in like 70 years
I hope this was a joke lol
Three times see it greatest video... I live between these three seas!!!!
i think there was a similar thing in north america right?
slightly different, in N. America there were ice-dammed lakes. Some of them were larger than all Great Lakes cumulated (cf. Agassiz Lake)
Oh yeah, it would be great to see similar timelapse for the North America
When ice was melting
@@nicksherbina4234 that's planned, but this is much more complicated (lake level, lake extent and their timeline is a big mess)
The melting of the Eurasian Ice-fields coincided with the rising of the world's oceans. An event that had a significant effect on the world's climate and the emerging civilisations in Europe, North America and the Middle East. We can only guess on that impact and speculate why only mega fauna survived in the Americas and disappeared as well as the Clovis people, whilst European/ Asian and Middle Eastern civilisation centres in the main survived ( I know it is contestable) I would love a historian like Barry Cunliffe to comment and speculate along with us why, how and why not things happened.
I cant see any systematic correlation between tempreature and the size of the caspian lake/sea.
I would expect that whenever water in the north atlantic warms up, the caspian lake expands, but there seem to be more influences than that. (I guess more water also vaporizes from the caspian lake than...)
Imagine what a civilization developing on the Volga would have to deal with when the Caspian floods their lands. We could see a dutch-style system of dikes and dams to block off flooding in certain parts where development was high, and then they start to use the water that previously posed an existential danger, but what would happen when the Caspian receded? What would the people do in that case, when the water that sourced their crops and powered their commerce started drying up?
Теперь понятно, почему поволжье такое плодородное и при этом такое сухое.
Why do the lakes expand during cold periods? Is it affecting the climate to cause more rain in the region than when it's warm? I would have thought the opposite.
Less evaporation, combined with watershed supplied by ice sheets. Also, some regions were wetter during cold periods
@@Kaldisti I would think the local rivers and lakes within Beringia would have been frozen with no fish.
@@Cove-o4d probably during winter, but summer was warm enough to sustain liquid water during the whole last glacial period
@@Kaldisti Tomorrow is the beginning of June to the east of the Dateline, but already June to the west of it.
When the earth is hot, water evaporates; when it is cold, it does not. It's simple 😃
Caspian sea: Can I into empire?
Russia: no
Caspian sea: then its war
*Caspian sea trys to beat russia 5 times*
Caspian sea: lets have a peace
*Meanwhile Aral sea*
Aral sea: Can Be independent?
Kazakstan and uzbekistan: No
Aral sea: then its independent time.
*Soviet union rise up*
Aral sea: h-
*PUNCH*
Soviet union: You talk too much kraut.
Aral west and east: I HATE YOU.
Hi, cool vid, but I'm confused about the year-ing. You've put BP, but also Before 1950. So is it x years before now, or 1950?
The reference year BP is 1950 yes
Do lake chad!!!
already done
Very cool, explains the ancient rock paintings on the Caspian shore of whales
Currently, meltwater is drowning half of the territory of Kazakhstan, the water has risen to record levels and is rapidly flowing to the northern borders of the Caspian Sea...😢
And we're is the programme about how to save it? Nothing
i am magyar speaker from hungary
ár= flood
árral=by flood
lé=fluid, LIquid (flood water)
k=plural in magyar
lék=fluids, waters coming down=le
lék árral = fluids by flood =lake aral
tó=lake
úr=sir, in power/erő
hon=home in magyar
tó úr hon=tóúrhon= lakelords home
this 3 lake area is TURAN=tóúrhon=lakelords home in magyar
pop media: AAAAAAH SOME SHALLOW LAKE IN CENTRAL ASIA CHANGED!
Central Asian bodies of water: lol water level go brrrr
Can you do this for the Niger-Delta
Very interesting videos. Just two comments. First, the Caspian should oscillate faster, we have the dates very well recorded in recent years, like the last 1200 years. There are many books written on the topic of the level of Caspian. I don't know where the authors got the dating. Also the bridge dividing Caspian into two, south of Karabogaz-gol appeared fully more than once. Second: I can see majour rivers on the simulation: Ural, Don, Dnepr, Danube, but where are Amu-Daria (until recently went into Caspian) and Syr-Daria (into Aral, now into North Aral), and Volga? All missing
beautiful!
Big Aral sea cures my depression
So the isthmus from the Azov to the Caspian Sea is about 26m above sea level.
And now the Aral sea is dead
oof
Massive F in chat for Aral sea.
It's temporable.
@@d......... unfortunatley no, because disapearence of an aral sea was man made
@@NiktheSl1ck the work of the USSR
song used?
@@herobrinesblog description
I call it:
One hell of a Mediterranean ....
you can almost sail from Spain to western China...
Я живу в дагестане и как дагестанец говорю вам ничего такого не видел ._.
The Hyborean Age when Conan was a pirate on the Sea of Vilayet.
link pls!!!
link of what ?
@@Kaldisti from water level simulator
@@thiagobr21987 there is no simulator, I coded it
circa 104455 BCE, Aral Sea has joined the Chat
circa 52460 BCE, Aral Sea has left the Chat
georgia:🍿
R.I.P Aral Sea
Каспий сейчас мелеет, чтобы вскоре опять заполниться. И это природное явление. Однако у нас модно нынче винить в этом коммунистов, что якобы из-за их каналов в Амур-дарье пересыхает Каспий и Арал.
I don’t know why, but the Caspian Sea is changing so much? (as much as every decade!)
Why is the sea changing so often?
Caspian sea is not connected to the world ocean, its level is entirely rivers dependent and evaporation dependent. So the level changed when precipitations over the Caspian catchment area changed
@@Kaldisti thanks for the info
Finally my country not landlocked. Rest in piece flood victims.
Does this mean the Aral Sea will eventually return, or is the damage too big for that? I don’t know what the future will bring, but I hope someone from 3024 finds this comment XD
the Aral sea will return without any problem if the dams are destroyed
looooooooooooooooong looooong ago Paratethys was here :DDD
sort of a super sea
Where is 2100 or 2500?
In the future
History of Caspian empire : Every year
Honesly quite incredibl3
Не показан прорыв Средиземного моря в Чёрное не знаю про Каспий но карты Чёрного моря не верны
Why Azov sea in video all time full?
Kertch strait is shallower than the Azov basin
POOR aral sea from uzbek 😢
Aral sea :
Hola
Adios
Hola
Adios
Hola
why is that happening?
long-terme changes of evaporation - water supplies balance, ice-sheet meltwater which flowed through Volga , Dniepr and Amou-Daria rivers
Nice, thank you for the answer. The second question is how do you know this? :)
@@nicksherbina4234 That was my job during my PHD, climate change during the last glacial period ;)
When did humans start leaving Africa? I would think nobody left Africa at 120000.
there were several attempts. The earliest migration wave possibly started 220,000 years ago, and the last one, 80,000 years ago
Aral Sea hide and seek
THICK CASPIAN SEA
Если это результат научно обоснованной работы, то это грандиозно! Но не объясняет останков пресноводных китов в казахской степи. Вроде бы нет обратного и прямого прорыва Дарданелл в "историческом" (возможном) периоде
Probably during Miocene when there was an ocean
Is it bad that I read it as "Erusia"? 😅
3:26
sorry, but don't call it an ocean, even in the period of maximum expansion it was smaller than the Mediterranean, which is always and commonly called the Sea.
furthermore, for an ocean to be called such, it must have precise characteristics, have constant salt water, the Caspian Sea (even ancient) has just under 1/3 of the salinity of the seas and oceans.
an ocean must be between two plates that are moving away from each other or have been, the Caspian Sea has none of these things. a very valid example is the Red Sea, at the moment, according to latest studies, it is in a state of expansion, where its oceanic crust is expanding, through the separation of the two plates, African and Arabian.
so don't call it an ocean, otherwise we would have to call the real oceans something else
Black sea and Caspian sea seafloor are made of oceanic crust. Geologically speaking, I can call it an ocean.
Furthermore, these are the remnant of the Para-Tethys Ocean, so when I say "paleo-ocean", this is not inaccurate.
By the way, there are no objective definition separating seas and ocean. Red sea has an accretion ridge, we call it a sea.
Only the size with an undefined threshold makesd the difference.
We'd have the same discussion about continents and islands
Your simulation is wrong
Author used old data, unfortunatly
what are the new data then ?
此消彼長
its believed that the great flood from the bible was based on the Caspian and black sea
Also Persian Gulf
Ukrainians excavated the Black sea!
Это аральское море смотрел креосана и вроде оно высахло изза проведений испытаний
Арал высох из-за сложного сочетания изменения климата, нерационального использования воды из рек питающих Арал и политики.
Always too small to be an ocean.
panonoian sea
Полная чушь.Мне было 20 лет когда каспии́ское море постоянно прибывало и увеличивалось в размерах.Я сам наблюдал и видел как как ближе и ближе оно приближалось.Я видел как оно замёрзло до пяти километров от берега.А теперь оно высыхает.Это может быть от того что солнце стало ярче светить и вода быстро испаряется.
white bay paisktan bay car bay
Why the caspian sea looks like a pregnant woman