Stations for measuring the impact of greening projects on air temperature and humidity. Fifteen stations were installed across the City of Montreal for a period of 10 summers in order to study the impact of urban development on heat. In the long term, the City wishes to install 25 throughout its territory. Better understanding these phenomena is an essential step in order to be able to address the problem of extreme heat in urban areas, which have an impact on the health and well-being of citizens. With this project, the City intends to measure the impact of greening projects on air temperature, train and raise awareness among its staff by participating in a research/action project and raise public awareness of the impact of greening on air temperature.**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

Polygons representing heat islands on the ground surface. A heat island is defined as the difference in temperatures observed between two surrounding environments at the same time. The different temperature differences are mainly explained by the type of soil layout such as the vegetation cover, the impermeability of the materials and the thermal properties of the materials. This difference can reach more than 12°C. The 2020-2030 Montreal Climate Plan aims, among other things, to improve planning and regulatory tools in urban planning. Montréal has thus committed to updating the climate change vulnerability analysis, including the heat island map, carried out as part of the 2015-2020 Agglomération de Montréal Climate Change Adaptation Plan and to integrating it into the next urban and mobility plan. The urban heat island maps were produced in collaboration with the Department of Geography of the University of Quebec in Montreal (UQAM). The data can also be viewed on the [interactive heat island map] (https://bter.maps.arcgis.com/apps/webappviewer/index.html?id=157cde446d8942d7b4367e2159942e05).**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

Rate of mineralization and vegetation of surfaces in the territory of the agglomeration of Montreal represented by polygons and based on the data [Mineral and vegetable surfaces of 2016] (https://donnees.montreal.ca/dataset/surfaces-minerales-vegetales) from the Geomatics Division of the City of Montreal. The data was calculated at the district level and at the level of the distribution islands of Statistics Canada. The data can also be consulted on the [interactive climate change vulnerability map] (https://experience.arcgis.com/experience/944e0b7104bd491591ccca829da24670/page/Page/).**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

Polygons representing priority areas to be greened on the territory of the City of Montreal to reduce the impacts of heat waves. Three priority levels were defined using a methodology that aimed to meet the following 5 objectives: 1. Reducing the vulnerability of Montreal to heat waves 2. Decrease the area of heat islands 3. Increase the canopy index in the most tree-deficient areas 4. Reducing the impacts of heat waves on the most sensitive groups 5. Greening living environments as a priority (residential and community sectors) This layer will be used to monitor the evolution of one of the eight indicators of the 2020-2030 Climate Plan [2020-2030 Climate Plan] (https://portail-m4s.s3.montreal.ca/pdf/Plan_climat%2020-16-16-VF4_VDM.pdf), i.e. the number of plantations in vulnerable sectors with a target of 500,000 trees to be planted by the City and its partners. It will also help to better plan and prioritize greening projects that are often expensive (e.g. green roofs, new parks, green corridors, expanded tree planting areas, vegetated overhangs or medians, etc.). The data can also be consulted on the [interactive map of climate change vulnerabilities in the Montreal agglomeration] (https://experience.arcgis.com/experience/944e0b7104bd491591ccca829da24670/page/Page/).**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

Polygons representing runoff water retention basins at a resolution of one meter in order to identify the physical particularities of the territory. Runoff is defined as the flow of rainwater to the surface of the ground that does not evaporate and does not seep into the ground when the capacity to hold water and vegetation is reached. The [Climate Plan 2020-2030] (https://portail-m4s.s3.montreal.ca/pdf/Plan_climat%2020-16-16-VF4_VDM.pdf) aims, among other things, to improve urban planning and regulatory tools. Montréal is committed to updating the climate change vulnerability analysis carried out as part of the 2015-2020 Agglomération de Montréal Climate Change Adaptation Plan and to integrating it into the next urban planning and mobility plan. The map of runoff water retention basins was produced in 2021, with the collaboration of the Department of Geography of the University of Quebec in Montreal, to calculate the vulnerability to heavy rains in the agglomeration of Montreal. The data can also be consulted on the [interactive map of vulnerabilities to climate hazards in the Montreal agglomeration] (https://experience.arcgis.com/experience/944e0b7104bd491591ccca829da24670/page/Page/).**This third party metadata element was translated using an automated translation tool (Amazon Translate).**

Polygons representing areas vulnerable to heavy rains, heat waves, destructive storms, droughts, and floods. Vulnerability corresponds to the propensity or predisposition of a system (community, infrastructure and natural environment) to suffer damage caused by the manifestation of a climatic hazard. It varies according to the nature, extent and pace of the evolution of the event as well as the variation in the climate to which the system is exposed, the sensitivity of this system and its capacity to adapt. The [Climate Plan 2020-2030] (https://portail-m4s.s3.montreal.ca/pdf/Plan_climat%2020-16-16-VF4_VDM.pdf) aims, among other things, to improve urban planning and regulatory tools. Montréal has thus committed to updating the climate change vulnerability analysis, including the heat island map, carried out as part of the 2015-2020 Agglomération de Montréal Climate Change Adaptation Plan and to integrating it into the next urban and mobility plan. In addition, in order to take stock of the evolution of the Climate Plan, the City of Montreal annually publishes an [accountability report] (https://montreal.ca/articles/plan-climat-montreal-objectif-carboneutralite-dici-2050-7613) of its 46 actions as well as its eight indicators, including the state of the various climate hazards illustrated by vulnerability maps. The data can also be consulted on the [interactive map of vulnerabilities to climate hazards in the Montreal agglomeration] (https://bter.maps.arcgis.com/apps/webappviewer/index.html?id=157cde446d8942d7b4367e2159942e05).**This third party metadata element was translated using an automated translation tool (Amazon Translate).**