younger dryas flood map

But in this video, I want to go back to the beginning of the Younger Dryas, around 12.800 years ago when a cataclysm of some kind plunged the planet back into an ice age and led to a major megafaunal extinction. Welcome to the Younger Dryas Glacial Map! Here, we have hosted these shapefiles on ArcGIS Online and made them publically available. return new_tooltip; storymaps addEvent(radios[i], 'click', function() { This event triggered extensive biomass burning, brief impact winter, climate change, and contributed to extinctions of late . Younger Dryas sea level and meltwater pulse 1B recorded in Barbados The lack of geological evidence for such an event,[103] stimulated further exploration that has now identified a pathway along the Mackenzie River that would have spilled fresh water into the Arctic and thence into the Atlantic. WAIS if (!value.match(/^[\+_a-z0-9-'&=]+(\.[\+_a-z0-9-']+)*@[a-z0-9-]+(\.[a-z0-9-]+)*(\. The Younger Dryas impact hypothesis argues that a comet strike caused major changes to climate and human cultures on Earth about 13,000 years ago. } The Younger Dryas Impact Debate - Is It Settled Yet? elems[i].className = elems[i].className + ' _has_error'; Across North America lie Bretzs noted scars of a huge body of water that flooded prehistoric earth. The Older Dryas was a stadial (cold) period between the Blling and Allerd interstadials (warmer phases), about 14,000 years Before Present), towards the end of the Pleistocene. The Popup has the attribute information (including the reference of the original authors who first mapped the feature), and a description and photograph of a typical example. [106], There is now compelling evidence for repeated, but highly variable, discharges of meltwater with contemporaneous changes in Atlantic circulation during the last glacial cycle. Do you think the Ice-Dam Burst theory explains the loss of the North American Ice Sheet? Note: Earth-Pages will be closing as of early July, but will continue in another form at Earth-logs A sudden collapse of global climate around 12.8 ka and equally brusque warming 11.5 ka ago is called the Younger Dryas. [71][72][73][74] That is hypothesized to be the result of a northward shift in the jet stream, combined with an increase in summer insolation[71][75] as well as a winter snow pack that was higher than today, with prolonged and wetter spring seasons.

Daniel Lacy Son Of Julia Duffy, Pensacola Blue Wahoos Score, Articles Y