Alaska Has Finally Been Mapped as Precisely as Mars

Alaska Has Finally Been Mapped as Precisely as Mars

Meteorite researchers can make their own and better
topographic maps of their search / study areas in parts
of Alaska using GIS software such as Global Mapper and
GRASS (Geographic Resources Analysis Support System)
using newly available digital elevation models (DEMs).

NSF, NGA release first unclassified digital elevation
models of Alaska, National Science foundation
http://www.nsf.gov/news/news_summ.jsp?cntn_id=189516

University of Minnesota-led project releases 3-D
elevation maps of Alaska for White House Arcti
Initiative. University of Minnesota, Sept. 1, 2016
https://cse.umn.edu/news-release/university-minnesota-led-project-releases-3-d-elevation-maps-alaska-white-house-arctic-initiative/

Alaska Has Finally Been Mapped as Precisely as Mars
New topographic maps made from satellite data will
help the state monitor—and plan for—its eroding
coastlines and melting permafrost by Joel K. Bourne, Jr.
National geographic, September 1, 2016.
http://news.nationalgeographic.com/2016/09/alaska-has-finally-been-mapped-as-precisely-as-mars/

ArcticDEM - http://pgc.umn.edu/arcticdem
ArcticDEM Explorer-
http://arcticdemapp.s3-website-us-west-2.amazonaws.com/explorer/

Other states have LiDAR and other DEMs from which
custom made topographic and relief maps can be
made using the above software. For example, Louisiana
has complete, downloadable LiDAR DEMs and raw

LiDAR data that can be downloaded and made into
custom maps. Go see http://atlas.lsu.edu and
http://atlas.lsu.edu/rasterdown.htm .

Yours,

Paul H.

Maps, Other Figures, and Information About Glacial and Non-glacial Periods

Maps, Other Figures, and Information About Glacial and Non-glacial Periods

The below article has some great figures and information in it about glacial and nonglacial periods in Earth history. This is great background information for people interested the interactions, of lack thereof, between extraterrestrial impacts and Earth.

Some Thoughts on Global Climate Change: The  Transition from Icehouse to Hothouse 

by Christopher R. Scotese, PALEOMAP Project April 26, 2015 v6c
https://www.academia.edu/12082909/Some_thoughts_on_Global_Climate_Change_The_Transition_from_Icehouse_to_Hothouse

More at https://uta.academia.edu/ChristopherScotese .

This includes "Atlas of Earth History" at:
https://www.academia.edu/9730874/Atlas_of_Earth_History .

Yours,

Paul H.

A Few Astrogeological and Geological Maps of 2014

A Few Astrogeological and Geological Maps of 2014

Lots of beautiful geologic maps were made this year.

They include:

Beautiful astrogeological maps reveal the Moon's
mysterious far side, Robbie Gonzalez, io9, Dec. 09, 2014
http://io9.com/5866790/beautiful-astrogeological-map-reveal-the-moons-mysterious-far-side

Previous io9 articles mention a number of other geologic
maps, including maps of the Moon and Ganymede. They
include:

1. New Geological Maps of the Arctic. Robbie Gonzalez,
io9, Dec. 11, 2014
http://io9.com/your-new-desktop-wallpaper-a-fetching-geological-map-o-1669591162

Harrison, J C; St-Onge, M R; Petrov, O V; Strelnikov, S I;
Lopatin, B G; Wilson, F H; Tella, S; Paul, D; Lynds, T;
Shokalsky, S P; Hults, C K; Bergman, S; Jepsen, H F; Solli, A
Geological map of the Arctic / Carte géologique de l'Arctique
2014, Geological Survey of Canada, "A" Series Map 2159A,
2011; 9 sheets; 1 DVD, doi:10.4095/287868
http://geoscan.nrcan.gc.ca/starweb/geoscan/servlet.starweb?path=geoscan/fulle.web&search1=R=287868
http://geoscan.nrcan.gc.ca/starweb/geoscan/servlet.starweb?path=geoscan/downloade.web&search1=R=287868
Accurate Yet, George Dvorsky, July, 15, 2014

2. Lose Yourself in these Stunning Lunar Maps
Robbie Gonzalez, io9, March 1, 2014
http://io9.com/lose-yourself-in-these-stunning-lunar-maps-1534324756

Lunar Map Catalog
http://www.lpi.usra.edu/resources/mapcatalog/

3. Your New Desktop Wallpaper: A Gorgeous Exploratory
Soil Map of Kenya, Robbie Gonzalez, io9, February 22, 2014
http://io9.com/your-new-desktop-wallpaper-a-gorgeous-exploratory-soil-1645225406

4. A Second Look at the First Geological Map of Ganymede
Robbie Gonzalez, io9, February 22, 2014
http://io9.com/a-second-look-at-the-first-geological-map-of-ganymede-1526438709
http://io9.com/behold-the-first-geological-map-of-ganymede-jupiters-1522360379

5. These Insanely Detailed Maps Of Mars Are The Most
Accurate Yet, George Dvorsky, July 15, 2014
http://io9.com/these-insanely-detailed-maps-of-mars-are-the-most-accur-1605220377

Even more maps are at http://io9.com/tag/map

Finally, I found the below map interesting:

Most Common Language In Each US State—Besides
English And Spanish by Lauren Davis, io9,
http://io9.com/the-most-common-language-in-each-us-state-besides-engli-1575909143

Best wishes,

Paul H

Maps Showing Stages in the Deglaciation of North America

Maps Showing Stages in the Deglaciation of North America

For those people interested in background information for
the Younger Dryas impact hypothesis, a paper with maps
showing the stages in the last Pleistocene deglaciation of
North America can downloaded from online for free for a
period of time.

The paper is:

Dyke, A. S., 2004, An outline of North American deglaciation
with emphasis on central and northern Canada. in J. Ehlers and
P.L. Gibbard, eds., pp. 373-424, Quaternary Glaciations-Extent
and Chronology — Part II: North America. vol. 2, Part B.
Elsiever, New York, New York.

The paper can be downloaded from
http://academic.macewan.ca/furzem/files/2011/10/Dyke-2004.pdf

The link to this paper is in "October 3rd – Yellowknife" at
http://academic.macewan.ca/furzem/2011/10/03/october-3rd-yellowknife/

An animation showing the deglaciation of North America
can be found in “The Last Deglaciation of North America,
21,400 - 5700 years ago, animation” at
http://emvc.geol.ucsb.edu/2_infopgs/IP2IceAge/aDeglacNoAm.html

Best wishes,

Paul H.