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#cartography

12 posts12 participants0 posts today
Public
Tom Elliott

I just had an email from Gabe Moss at the Ancient World Mapping Center at UNC Chapel Hill alerting me to "the release of Livy Study Maps: Book 22, the latest addition to the Maps for Texts series."

More here: awmc.unc.edu/2025/03/20/livy-s

"... this set of twenty-three maps is designed for students and teachers working with Livy’s text, and offers detailed coverage of famous episodes such as the Battles of Lake Trasimene and Cannae, as well as of lesser-known campaigns from Book 22 of the History of Rome. The maps are available as free digital downloads under the CC-BY-NC 4.0 license."

awmc.unc.eduLivy Study Maps: Book 22 | Ancient World Mapping Center
#Livy#ancientGeography#ancientHistory
Public
Tuomas Väisänen 📼🧟‍♂️

A quick illustrative #map on the implications of using different types of centroids in regional #demography #mobility and #migration studies.

Think about what you are emphasizing.

By using population-weighted centroids, you can emphasize the population perspective in the analysis instead of the geometry, potentially improving your analysis considerably. The distance difference is stronger in sparsely populated and remote regions.

A map of some European countries on the NUTS 3 regional level, where each region contains a geometrically calculated centroid, and a population-weighted centroid. That is, the centremost geographical point of the region. In Northern Europe, the distance difference between the two types of centroids can be hundreds of kilometres, which can have massive implications in studies which use centroids to calculate distance-based metrics. Using the geometric centroid will not provide representative metrics of the region from the perspective of the population. The distance difference in Central European NUTS 3 regions is much less considerable, and the differences are measured in kilometres instead of hundreds of kilometres.
#GIScience#Geospatial#cartography
Public
Bryan Hansel

Lately, I've been messing around with adding modern 3D elevation relief to historic maps. This is the original GLO survey from 1859-60 of the Grand Marais, Minnesota area.

Learning how to do this has been challenging. I've been using QGIS > Photoshop > Blender > Photoshop as the workflow.

A yellowed historic plat map from 1860 that shows elevated hillshade were the survey draws appear. The rest is flat. The bottom shows who did the surveys, but it is in cursive and nobody can read that anymore, right?
#Minnesota#Cartography
Public
Conspiracy of Cartographers

One of my favorite #Petrofuture maps….The Mississippi River becomes a vast inland sea reaching up to Memphis. 
Of course New Orleans is gone. I mean, c’mon.

Melted ice caps on a 1956 Shell Oil road map. 

Higher-res images:
conspiracyofcartographers.com

#climateChange #maps #cartography #climateCrisis #greenWashing #Louisiana #Mississippi #NewOrleans #worldBuilding #gulfOfMexico #MississippiRiver #Memphis

Mississippi Louisiana Arkansas Petrofuture map…66m sea level rise on a 1956 Shell Oil gas station map. The Mississippi River is completely flooded.
Public
💧🌏 Greg Cocks

The Concept Of Indigenous GIS
--
Reading a paper (alturl.com/8wte5), they used the specific term ‘Indigenous GIS’ – and I found this intriguing!
As I read it, spatial data collection and analysis was done with a focus on how a tribe or social group might ‘see’ the data, including spatiotemporal....
I look forward to finding out more about what others are working on! – so PLEASE feel free to share any examples that you might have…
#GIS #spatial #mapping #indigenous #IndigineousGIS #FirstNation #perspective #cultural #social #naturalresources #archaeology #publicsafety #socialservices #planning #design #spatialanalysis #spatiotemporal #mapping #cartography #usecase #practical #pragamatic #resultsdriven #focused##

photo - indigeneous favela resident, Brasil
historic photo - Navajo woman carrying peaches, 1902
photo - example of a portion of Maori whanau, New Zealand
map - view sheds for deathscapes, Southern Je, Brazil
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