European Workshop on Urban Climate Indicators, 2021 Edition, 17 May 2021, online

See here for general context information about the EWUCI Workshop.


9:00 - 10:15: Session 1

Welcome address

Bénédicte Bucher, IGN (Institut national de l'information géographique et forestière)

What data to manage summer comfort in urban planing projects in France?

Julia Hidalgo, CNRS/LISST (Interdisciplinary Laboratory on Society Solidarity and Territory) (slides)

Designing solutions for municipalities specific needs related to adapting to UHI

Christophe Bortolaso, Berger-Levrault

Cities and buildings now have real digital twins that are increasingly precise in their geometric and/or semantic representations. It is now possible to build 2D or 3D, multi-layered and multi-scale representations of a city thanks to the data that play an increasing role in understanding the city and its evolution.

These representations or digital twins can be augmented with a wide variety of information from many sources. This allows to observe a wide range of phenomena while offering the possibility to visualize them geospatially. For example, many cities have invested the possibilities offered by IOT and open data to collect and make available diverse data sources such as energy consumption of public buildings, green spaces, humidity levels, age and population density, tree planting, wind strength and direction, flowering cities & villages labels, urban mobility, public spending, transportation networks, frailty of the elderly, CO2 emissions, noise, etc.

These data lakes make it possible to build powerful analytical tools to help manage the city, particularly in terms of urban planning and environmental policy. By combining all these sources, we can create a window on the city, offering an opportunity to understand the interactions between different phenomena. For example, it becomes possible to correlate vegetation density, urban mobility, and public finances with strong environmental requirements such as the reduction of urban heat islands. It is then possible to consider and design a "systemic" approach to the city.

Decision-makers, scientists and urban planning agencies are taking advantage of these digital tools to support their decision-making processes. However, citizens are still very little involved while it is their behavior that offers the greatest opportunities to limit thermal stress in cities. It is therefore essential to develop an opened observatory of the urban environment built on state-of-the art data-visualization to provide simple representations understandable by all, and a complete data-platform enabling artificial intelligence and climate models to enrich the disjointed data sources and assist public environmental policies.

10:15 - 10:45: Break

10:45 - 12:15: Session 2

Co-construction of Climate Services based on a meteorological stations monitoring network in Toulouse agglomeration

Guillaume Dumas, CNRM, Toulouse Métropole (slides)

Using Satellite Data for Urban Environmental Measures

Maren Koehlmann, Institute for Research and Development in Federal Statistics

This presentation showcases the necessity and possible ways of acquisition of objective and reliable data in the light of democratic decision making. With certain topics in the political and social debate, new needs for reliable data are growing. This practical contribution discusses which mandate statistical offices might have to provide relevant and timely data. In the case of environmental and urban indicators satellite imagery could be used to provide statistics without any burden of respondents.

New air quality measurement service for cities

Tarek Habib, Murmuration,

Continuous monitoring of Greenhouse Gases (GHGs) is of vital importance as it is key to measure our progress towards the achievement of the sustainability of our environment. The same applies to global atmospheric simulation of GHGs variations and fluxes that enables us to understand and build the future climatic scenarios. Both tasks are complex requiring high computational costs, human validation work and a large number of geographically distributed measurement instruments. The space agencies ESA and NASA have developed in the last decade satellites capable of measuring air quality, through the observation of GHGs, with increased accuracy. Satellites are capable of measuring the concentration of GHGs in the troposphere.

We propose to present our findings in computing the correlation between ground-based data using the ICOS infrastructure data with OCO2 and S5P satellite data to validate the use of satellites to improve our global observation capacity and the global simulation models of GHGs. On the other hand, we will present the possibility of creating a monitoring service for cities, scalable on a global scale and its economic model.

12:15 - 13:45: Lunch break

13:45 - 15:30: Session 3

Urban climate and adaptation: from local to European scales, back and forth

Alban Mallet, Ecological transition department, Greater Nantes Metropolitan Area (slides)

This presentation tackles encountered challenges from the perspective of an operational practioner to adapt a city to climate change. At the local scale, the transfer of knowledge from scientific requires more interoperability and common referentials. At a higher scale, territories gather to compile and consolidate observations and knowledge in so-called regional IPCC. At a european scale, collaboration betwen cities, in Eurocities, also is important to participate to the european regulation process.

Contribution on assessing methodological approaches for SDG indicator analysis

Gwendolin Seidner-Schötz, Patrick Knoefel, and Jeanette Kretz, BKG (German federal agency for cartography and geodesy)

Urbanisation and the associated effects such as population growth lead to negative impacts on the world climate and pose major challenges for the global geospatial and statistical data community. Therefore, stakeholders have taken on the subject and are seeking for sustainable solutions to implement the Agenda 2030. This paper discusses and characterises the collaborative analysis of SDG indicators with geospatial and remote sensing data using the example of an urban SDG indicator (11.7.1). It is an interest to investigate, whether there is only one method for certain indicators to analyse or even several methods can be used, such as with statistical data or remote sensing data. Based on the various approaches, the importance of collaborations and data sharing by different geospatial and statistical authorities will be exemplified. Finally, suggestions for strategy adaptions for future climate indicator analyse are drawn.

Overview on selected challenges through the lens of ERA4CS URCLIM project and other projects

Athanasios Votsis, University of Twente, Adriaan Perrels, Finnish Meteorological Institute, and Valéry Masson, Météo France (slides)

15:30 - 15:45: Break

15:45 - 16:15: Round table

Moderator: Adriaan Perrels, Finnish Meteorological Institute


16:15: End of the workshop

Practical informations

The workshop will be fully virtual due to the current sanitary situation. The links will be sent to registered participants.

Registration is open:

All questions should be emailed to ewuci2021 at