𝚛𝚒𝚌𝚑𝚊𝚛𝚍 𝚜𝚎𝚖𝚖𝚕𝚎𝚛
Georg VerweyenHow does economic complexity correlate with human development?
On today's #gisday I'll share my first attempt at a bivariate chloropleth map.
Admittedly, there's a lot going on and 25 tints can be hard to distinguish, plus I tried to keep it as accessible as possible marrying two accessible color ramps: Mako and Viridis.
#gis #qgis #mapping #CorrectTheMap
Cartographe encarté 🔻🍉
Le regard de cartographe pour l'Humanité, ça continue. Pour ce premier numéro de la saison, je vous parle de la campagne #CorrectTheMap 🌍🗺 https://www.humanite.fr/en-debat/regard-de-cartographe/pourquoi-faut-il-corriger-la-carte-du-monde
Il faut corriger la carte du monde : voici pourquoi
Pour ce premier épisode de cette nouvelle saison de regard de cartographe, Nicolas Lambert nous propose de découvrir ce qui se cache derrière les cartes. Passer d’un monde sphérique à sa représentation plane entraîne des déformations. Le choix de ces déformations n’est pas du tout neutre.
Headlines AfricaAfrica: World Maps Get Africa's Size Wrong - Cartographers Explain Why Fixing It Matters: [The Conversation Africa] The African Union has endorsed the #CorrectTheMap Campaign, a call for the United Nations and the wider global community to use a different kind of world map. The campaign currently has over 4,500 signatures. http://newsfeed.facilit8.network/TMlXJd #Africa #WorldMaps #CorrectTheMap #Cartography #AfricanUnion
Omain
aquilonehttps://www.raiplaysound.it/audio/2025/08/Radio3-Scienza-del-25082025-20fc1e2a-0b3e-475d-888a-44c332e2985a.html https://www.reuters.com/world/africa/african-union-urges-adoption-world-map-showing-continents-true-size-2025-08-14/ #africa #correctthemap
Radio3 Scienza | S2025 | L'Africa vera | Rai Radio 3 | RaiPlay Sound
L'Africa vera - Radio3 Scienza - Vi sareste mai immaginati che per eguagliare l'estensione superficiale del continente africano dovreste sommare le ampiezze territoriali di Stati Uniti, Cina, India, Giappone, Regno Unito, Spagna, Portogallo, Francia, Germania e Perù? Eppure quasi tutti noi abbiamo una percezione molto diversa delle dimensioni dell'Africa, a causa principalmente della più diffusa proiezione cartografica: quella di Mercatore. I suoi vantaggi per la navigazione sono innegabili, ma ha il difetto di ingigantire enormemente i territori lontani dall'equatore, come ci dice Massimo Rossi, geografo e storico, curatore degli studi geografici per Fondazione Benetton Studi Ricerche. D'altra parte la rappresentazione in piano del globo ha sempre rappresentato un problema, ci ricorda Silvia Benvenuti, matematica all'Università di Pisa. Ora, però, la campagna "Correct The Map", guidata dalle organizzazioni Africa No Filter e Speak Up Africa, sta promuovendo l'adozione della proiezione "Equal Earth", progettata per rappresentare i continenti in base alle loro dimensioni reali. Ma quali istanze geopolitiche sono alla base di questa iniziativa? Lo chiediamo a Marco Trovato, giornalista e direttore di "Rivista Africa". Al microfono Elisabetta Tola
💧🌏 Greg Cocks#AfricanUnion Joins Calls To End Use Of #Mercator Map That Shrinks Continent’s Size
--
https://www.theguardian.com/world/2025/aug/15/african-union-true-size-world-map-replace-mercator-version <-- shared media article
--
[just a reminder that the Mercator projection was developed in 1569 for use in marine navigation, so as to utilise “rhumb line[s],… a path on the Earth's surface that crosses all meridians of longitude at the same constant angle, allowing for a steady compass bearing to be followed.” (this is most specifically NOT pedantry!)
Glad that the suggested projection to make – rightly – the size of Africa be accurately represented is Equal Earth (https://equal-earth.com/, 4th figure) - rather than the (1) gross shapes distortion and (2) (erroneous) ‘socially concerned groups’ baggage that has been attached to the Gall-Peters projection]
#GIS #spatial #mapping #Africa #size #truesize #accurate #representation #stereotypes #CorrectTheMap #marine #navigation #campaign #equalearth #projection #shape #mapprojection #education #continent
#AfricaNoFilter #SpeakUpAfrica
--
https://www.theguardian.com/world/2025/aug/15/african-union-true-size-world-map-replace-mercator-version <-- shared media article
--
[just a reminder that the Mercator projection was developed in 1569 for use in marine navigation, so as to utilise “rhumb line[s],… a path on the Earth's surface that crosses all meridians of longitude at the same constant angle, allowing for a steady compass bearing to be followed.” (this is most specifically NOT pedantry!)
Glad that the suggested projection to make – rightly – the size of Africa be accurately represented is Equal Earth (https://equal-earth.com/, 4th figure) - rather than the (1) gross shapes distortion and (2) (erroneous) ‘socially concerned groups’ baggage that has been attached to the Gall-Peters projection]
#GIS #spatial #mapping #Africa #size #truesize #accurate #representation #stereotypes #CorrectTheMap #marine #navigation #campaign #equalearth #projection #shape #mapprojection #education #continent
#AfricaNoFilter #SpeakUpAfrica
Dessiner une carte, c'est comme éplucher une orange. #CorrectTheMap https://youtu.be/ost7lUQuZdc?si=Qlwl6IYtYtYxAy12
Pourquoi la projection de Mercator pose problème. #CorrectTheMap https://youtu.be/ost7lUQuZdc?si=Qlwl6IYtYtYxAy12