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Laser scanning reveals 'lost' ancient Mexican city 'had as many buildings as Manhattan'
The Guardian ^ | 15 Feb 2018 | Nicola Davis

Posted on 02/17/2018 10:15:51 AM PST by mairdie

The approach, known as light detection and ranging scanning (lidar) involves directing a rapid succession of laser pulses at the ground from an aircraft.

The time and wavelength of the pulses reflected by the surface are combined with GPS and other data to produce a precise, three-dimensional map of the landscape. Crucially, the technique probes beneath foliage - useful for areas where vegetation is dense.

...

The team also found that Angamuco has an unusual layout. Monuments such as pyramids and open plazas are largely concentrated in eight zones around the city's edges, rather being located in one large city centre. According to Fisher, more than 100,000 people are thought to have lived in Angamuco in its heyday between about 1000AD to 1350AD. "[Its size] would make it the biggest city that we know of right now in western Mexico during this period," said Fisher.

(Excerpt) Read more at theguardian.com ...


TOPICS: History; Science
KEYWORDS: angamuco; archeology; godsgravesglyphs; lidar; maya; mayans; purapecha
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To: mairdie

Yet I doubt that this Mexican city had an average story count of 38 floors like NYC does...... It was a significant city I’m sure but that’s a bit of hyperbole right there.


21 posted on 02/17/2018 11:50:09 AM PST by WMarshal ("IN AMERICA WE DON’T WORSHIP GOVERNMENT — WE WORSHIP GOD." POTUS tweet 2017)
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To: mairdie

If you look close, you can see the marquees for karate movies and peep shows.


22 posted on 02/17/2018 11:54:27 AM PST by P.O.E. (Pray for America)
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To: WMarshal

And think of the joy of the headline writer who looked at what they’d just written and said, “Yep. That’ll get the clicks!”


23 posted on 02/17/2018 12:01:55 PM PST by mairdie
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To: mairdie
'lost' ancient Mexican city 'had as many buildings as Manhattan'

Only when you count the out houses too.

24 posted on 02/17/2018 12:05:51 PM PST by dennisw (The strong take from the weak, but the smart take from the strong)
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To: dennisw

It used to be the case that you could name the Manhattan residents:

The families who made up New Amsterdam are listed by block and building number they owned or occupied. This list originally appeared in the “Du Trieux Family Newsletter” of 1984.

WITHIN FORT AMSTERDAM: 1. Dutch Reformed Church of St. Nicholas; 2. Governor’s house; 3. barracks for Company soldiers; 4. guardhouse; 5. officers’ quarters or storehouse; 6. secretary’s office, a. the gristmill; b. the sawmill; c. cemetery; d. small fortification; e. the Land Gate; f. the water gate; g. Weighting House Peir; h. probably the site of the gallows.

BLOCK A: 1. Tavern of Lodewick Pus (Pos?) captain of the Battle Watch; 2. Pieter Laurenzen Cocl (Coch?); 3. Martin Cregier, tavernkeeper and captain of Burger Guard; 4.5. Jacob de Lang; 6. Dominee Joh. Megapolensis, first Protestant-missionary to the Indians; 7. Lucas Andries; 8. Barent Cruytdop; 9. Dirck Wiggers; 10. tavern of Lucas Dircksen; 11. Reindert Jansen Hoorn; 12.13 Dominee Samuel Drisius; 14. Laurens Andriessen; 15. 16. Paulus Leendersen van der Grift, sea captain and trader; 17. Hendrick van Dyck; 18. Jacobus Vis; 19. Cornelis Jansen Pluyvier, innkeeper; 20. Dominee Samuel Drisius; 21. West India Co. garden; 22. West India Co.’s orchard.

BLOCK B: 1. Augustine Heerman, artist and merchant; 2. Pieter Shaelbanck, jailer; 3. Joseph Waldron; 4. Resolveert Waldron; 5. Dirck Stecken; 6. Leendert Aerden; 7. Hendrick Hendricksen; 8.9. Dominee Samuel Drisius; 10. Couwenhoven’s brewery; 11. the Latin school.

BLOCK C: 1.2. residence and tavern of Abraham Pietersen; 3. Gerrit Fullewever; 4. Sergeant Pieter Webel; 5. Geertie, widow of Andries Hoppen; 6. Ensign Dirck Smit; 7. Jan Hendricksen van Gunst; 8. Thomas Franse; 9. Samuel Edsen; 10. Weyntje Elbers, widow of Aert Willemsen; 11. Isaac Graventract; 12. Pieter Rudolphus; 13. Gabriel de Haas; 14. Boardinghouse of Claes Ganglois Visscher; 15. Jacobus Kip; 16. Jacobus Vis; 17.18. Col. Philip Pietersen Schuyler; 19. Deacon’s House for the Poor; 20.21 Jacobus Kip; 22. Pieter Rudolphus; 23. Jan Cornelissen, Weighing house porter; 24. Jacob Mensen; 25. Daniel Tourneur; 26.27.28. Coenraer ten Eyck; 29. Dirck Jansen; 30. Buele Roeloffsen; 31. Thomas Fredericksen; 32. Toussain: Briel; 33.34.35.36. Thomas Wandel; 37. Willem Bradenbent; 38.39.40. Egbert Woutersen; 41. Jan Jansen-owner, Christiaen Pieters, tenant.

BLOCK D: 1. Frederick Arentsen; 2. Gerritt Hendricksen; 3. Nicolaes Boot; 4. Barentzen Family, tenants, Jan Bout-owner; 5. Joh. Verneelen; 6.7. Cloff Stevensen Van Cortland. He also owned #14; 8. Pieter van Naarden; 9. Coenrear ten Eyck; 10.11. Renout Reynoutsen; 12. Gerrit Jansen Roos; 13. Hendrick Jansen Spiers; 15. Frederick Lubbersen; 16. Abraham de la Nuy 17.18. residence and brewery of Cloff Stevensen van Cortlandt, burcomaster 1655-65.


25 posted on 02/17/2018 12:13:21 PM PST by mairdie
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To: dennisw

Archaeology however interesting ..today exists to diminish the achievement of whites Judeo Christian or Western civ in general

By hook or crook

I rarely bother now

But give me an old 1955 Britannjca on the subject and I’ll study it

Political correctness infects everything

It’s Captain Trips of our minds


26 posted on 02/17/2018 12:18:53 PM PST by wardaddy (As a southerner I've never trusted the Grand Old Party.....any questions?)
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To: wardaddy; dennisw

One local bit of archaeology I found deeply interesting was the study undertaken when the excavation was underway for the removal of the Cypress Structure (I-880 in West Oakland, CA) which had collapsed in the 1989 Loma Prieta earthquake.

Great reading.

http://web.sonoma.edu/asc/cypress/finalreport/index.htm


27 posted on 02/17/2018 12:23:09 PM PST by thecodont
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To: mairdie
It would be really impressive if they had as many Dunkin Donuts as NYC ...

If they did, the shops would probably be cleaner than those in New York ...

28 posted on 02/17/2018 12:31:43 PM PST by x
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To: x

My very favorite shop. When asked to give directions, they will usually include reference to a Dunkin’ Donuts. Oh, where, oh, where, have their maple frosted donuts gone?


29 posted on 02/17/2018 12:35:35 PM PST by mairdie
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To: SaxxonWoods; mairdie

I quite agree.

https://books.google.com/books?id=tBc_AMMfAk4C&pg=PA461&lpg=PA461&dq=Blockies!+mars&source=bl&ots=OjQM2VWHco&sig=x9m1S6Yhke893jte12BaAiYolUg&hl=en&sa=X&ved=0ahUKEwjF-urO5q3ZAhWhhOAKHZMVCCcQ6AEIOzAE#v=onepage&q=Blockies!%20mars&f=false

http://www.thehiddenmission.com/BullittsIRviews/marsinfraredimaging.htm


30 posted on 02/17/2018 12:43:54 PM PST by ADemocratNoMore (The Fourth Estate is now the Fifth Column)
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To: mairdie

Are you going to say the fancy interior is inside of that rather large shed? Why would someone spend the money to do that?


31 posted on 02/17/2018 1:09:45 PM PST by Blue Highway
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To: Blue Highway

“Why would someone spend the money to do that?”

Because his wife didn’t want him mucking up the spare bedroom?


32 posted on 02/17/2018 1:14:10 PM PST by 21twelve
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To: Blue Highway

Yes it is. Why do people collect stamps? It makes him happy.

http://www.dailymail.co.uk/news/article-2128270/Titanic-cabin-man-garden-shed.html


33 posted on 02/17/2018 1:27:26 PM PST by mairdie
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To: sparklite2
First, it eats the roots and shoots.

Who or what does it shoot?

34 posted on 02/17/2018 1:54:15 PM PST by Alas Babylon! (Keep fighting the Left and their Fake News!)
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To: Alas Babylon!

Shoots as a noun, not a verb.


35 posted on 02/17/2018 3:48:53 PM PST by sparklite2 (See more at Sparklite Times)
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To: mairdie; StayAt HomeMother; Ernest_at_the_Beach; 1ofmanyfree; 21twelve; 24Karet; 2ndDivisionVet; ...
Thanks mairdie.

36 posted on 02/17/2018 4:35:16 PM PST by SunkenCiv (www.tapatalk.com/groups/godsgravesglyphs/, forum.darwincentral.org, www.gopbriefingroom.com)
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To: mairdie; SunkenCiv
Interesting image/data processing! Looks more like a SEM than a LiDAR image. I'd like to get copies of the convolution matrix filters used there!

FWIW, I have so much experience with various SEMs that my boss used to say that I should own stock in Polaroid! '-)

And, at present, I'm negotiating to acquire LiDAR data on a huge swath down the eastern side of Texas -- which includes the pioneer emigration route known as ...

No, I'm not that author, but I've worked closely with him for over seven years -- and his book relies heavily on my GIS + image processed cartography...

Much of "the Trace" is on private land, and much of that is in heavily forested areas. Using custom post-processing on satellite imagery, I have had fairly good success in detecting faint remnants of the Trace .

But, by applying those same custom "spatial filters" to good LiDAR "Bare Ground" data, the results are spectacular!!

The main drawback to LiDAR until now has been the exorbitantly high co$$$t of acquiring the data -- even if it was already created and stored in some company's data bank. That appears to be about to change, with the advent of "Open Source" data.

~~~~~~~~~~

If anyone's interested, I'll see if I can find and put some of my A-B satellite vs LiDAR examples up on my webdomain for display here...

37 posted on 02/17/2018 6:08:50 PM PST by TXnMA (MSM? No, thanks -- I prefer my news from the other end of the horse...)
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To: TXnMA

I’m interested


38 posted on 02/17/2018 6:11:15 PM PST by piasa (Attitude adjustments offered here free of charge)
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To: wardaddy

This is why many home schoolers use old books and old text books in their mix of reading materials. Old means not infected with PC slants and nonsense.


39 posted on 02/18/2018 12:50:13 AM PST by dennisw (The strong take from the weak, but the smart take from the strong)
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To: TXnMA

Here’s a link to one I still haven’t posted:

Micro to macro mapping — Observing past landscapes via remote-sensing
Fri, Feb 09, 2018
http://popular-archaeology.com/issue/winter-2018/article/micro-to-macro-mapping-observing-past-landscapes-via-remote-sensing


40 posted on 02/18/2018 3:47:34 PM PST by SunkenCiv (www.tapatalk.com/groups/godsgravesglyphs/, forum.darwincentral.org, www.gopbriefingroom.com)
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