An interdisciplinary research work between urban planning and language sciences now published in the journal Urban Studies

 

Thomas Buhler, laboratory ThéMA and Virgnie Lethier, ELLIADD (University of Franche-Comté) present a new method which opens up research perspectives for the coming years.

For several decades now, French cities - like many others around the world - regularly publish urban planning documents in which their strategies are expressed for the next 5, 10 or even 15 years. These documents concern particular themes (transport, land use regulations, housing, etc.). Begun two years ago, an interdisciplinary project between research centres ThéMA and ELLIADD focuses on the analysis of the these 'planning discourses', based on textometry, a reproducible method of textual data analysis. This systematic method aims to overcome certain methodological and technical obstacles present in the field of urban policy discourse analysis, which is often based on interpretative methods that are weakly reproducible or documented.

 

Buhler, T., & Lethier, V. (2019). Analysing urban policy discourses using textometry: An application to French urban transport plans (2000–2015). Urban Studies. https://doi.org/10.1177/0042098019873824

 

Figure Urban studies Buhler

 

 

 

 

 

 

 

 

 

 

Last Updated: Wednesday, 30 October 2019 08:32

An article published in Nature Scientific Reports: Huge decrease of frost frequency in the Mont-Blanc Massif under climate change

 

Benjamin Pohl, Daniel Joly, Julien Pergaud, Jean-François Buonchristiani, Paul Soare & Alexandre Berger, Nature Scientific reports volume 9, Article number : 4919 (2019)

https://www.nature.com/articles/s41598-019-41398-5#Abs1           

                

This study co-signed by 5 members of the laboratory Biogéosciences (Dijon) was led in the framework of the ANR project « VIP-Mont-Blanc » about the consequences of climate change in the Mont Blanc massif. It is based on 13 models of simulated temperatures used to define the IPCC’s climate scenarios. These data have a coarse spatial resolution, i.e. grid cells of a 100 to 200 km, but have a very high temporal resolution: a daily value of minimum and maximum temperature from 1850 to 2100, amounting to 55 000 days! The algorithm developed by the Bourgogne Franche-Comté team aims at reducing this data’s spatial inaccuracy by “downscaling”. Eventually, the coupling of physical and geographical models provided very high spatio-temporal resolution climate data. At a 200 m resolution over the entire Mont Blanc massif and for 55 000 days, each of the 13 simulations were downscaled according to two scenarios, optimistic vs pessimistic.

Until the middle of the 20th century, the study shows few differences between scenarios but in the second half, strong evolutions arise. Under the pessimistic scenario, every third day will be frostless on the Mont Blanc summit in summer, with a risk of rock wall destabilization and collapse all over the range. Things will be not better in winter with very little snow in the valley.

 

Mont Blanc JC

                   Mont Blanc massif from the Brévent ; Credit photo : Jean-Christophe Foltête

Last Updated: Monday, 08 April 2019 13:17

PixScape software, devoted to the modelling of landscape visibility, is published in the journal “Transactions in GIS”

PixScape software proposes to integrate a large set of functions for modeling landscape visibility while remaining interfaced with GIS software. This software can be used to perform a complete landscape assessment by computing a wide range of original landscape metrics. It performs tangential analysis in addition to viewshed analysis, which can produce more realistic outcomes. Because landscape visibility analysis over large areas implies significant computation time, the software also integrates a multi‐resolution process intended to speed up calculations while also taking into account the cognitive abilities of human vision.

 

Yohan Sahraoui, Gilles Vuidel, Daniel Joly, Jean-Christophe Foltête. Integrated GIS software for computing landscape visibility metrics. Transactions in GIS, Wiley, 2018

DOI : 10.1111/tgis.12457

Pixscape website

pixscape

 

Last Updated: Friday, 31 August 2018 13:01
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