Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
I am just curious as to what the climate was like in the United States during the Xerothermic climate era? Based on tree ring, lake sediment, soil carbon isotopes, and other paleoclimate data, how was the climate like during this warm post-glacial climate in your location?
can you give a few details on when the Xerothermic was for those who never heard of it?
The Xerothermic era, was a post glacial climactic period which occurred roughly between 8,000 to around 3,500 years before present. Some historians and amateur weather experts believe that this climate era was warmer than the present climate.
I suppose that many people haven't heard of this climactic period is maybe because it wasn't a widespread phenomenon? For other information, the term "Xerothermic" is derived from two Greek words which translates roughly into the word "Dry Heat". I will say that I only have limited knowledge on how this climate affected prehistoric America, so any and all input would be greatly appreciated
Here in the Pacific Northwest 8-10,000 years ago the Purcell Trench ice dam failed, releasing the last of dozens of cataclysmic floods. Lake Missoula formed when the Clark Fork river was dammed by the Cordilleran ice sheet and was the size of lakes Erie and Ontario combined. Peak flow rates are estimated to be between 10-15 (16-24km) cubic miles of water an hour, with a total energy release equivalent to 4,500 megatons of TNT.
Beyond that, the information I found shows rapid warming and drier conditions with the period between 8,000 to 3,000 years ago up to 3.6F warmer than now. Then about 2,600 years ago it turned colder and wetter than today. I'll take either of those over the floods, or the "polar desert" climate of 14,000 years ago.
Interesting topic, now I'm curious to see what North America was like during the Roman and medieval warm periods. Here's the site I found the info on.
The Xerothermic era, was a post glacial climactic period which occurred roughly between 8,000 to around 3,500 years before present. Some historians and amateur weather experts believe that this climate era was warmer than the present climate.
I've heard of that by the name of Holocene climatic optimum. When I get home I can try to find a link to a map of a climate model's estimated reconstruction of climate for the time.
Quote:
Originally Posted by dozerbear
Interesting topic, now I'm curious to see what North America was like during the Roman and medieval warm periods. Here's the site I found the info on.
If you believe YnOhTnA North America was much milder during that time and we are now in a cold epoch. I'm a little skeptical of his claims, though.
The Xerothermic era, was a post glacial climactic period which occurred roughly between 8,000 to around 3,500 years before present. Some historians and amateur weather experts believe that this climate era was warmer than the present climate.
Interesting. Never heard of this era. Love history so I'll check it out. Thanks. We didn't have SUV's, Light bulbs and Lawnmowers back then so I wonder what CO2 levels were like.
Do you have any good info you want to post about this era? Be interested in reading. Studies? News? Articles? Maps? Blogs? Digital Pictures from then? Daily or monthly weather Reports from then?
Please register to post and access all features of our very popular forum. It is free and quick. Over $68,000 in prizes has already been given out to active posters on our forum. Additional giveaways are planned.
Detailed information about all U.S. cities, counties, and zip codes on our site: City-data.com.
Please register to participate in our discussions with 2 million other members - it's free and quick! Some forums can only be seen by registered members. After you create your account, you'll be able to customize options and access all our 15,000 new posts/day with fewer ads.
? For other information, the term "Xerothermic" is derived from two Greek words which translates roughly into the word "Dry Heat"
. I will say that I only have limited knowledge on how this climate affected prehistoric America, so any and all input would be greatly appreciated
