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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Den äldre befolkningens sårbarhet för värme : En kvalitativ studie av urbana värmeöars och värmeböljors påverkan i Uppsala

Sjöberg, Elvira January 2022 (has links)
I denna uppsats är syftet att undersöka vad som görs för att minska den äldre befolkningens sårbarhet för urbana värmeöar och värmeböljor i Uppsala. Detta görs genom en kvalitativ innehållsanalys av dokument från Uppsala Kommun och Folkhälsomyndigheten, samt semistrukturerade intervjuer med tjänstemän från Uppsala Kommun, Länsstyrelsen i Uppsala och Region Uppsala. De åtgärder som vidtas för att förbättra resiliensen mot värme är klimatanpassningsåtgärder och riskhanteringsstrategier. Detta innebär att införa mer grönstruktur i hela staden och lokalisera äldreboenden på lämpliga platser och med lämplig utformning. Riskhanteringsstrategierna är ett varnings- och beredskapssystem som är till för att informera de kommunala verksamheterna och allmänheten om risker och åtgärder som kan vidtas för att minska sårbarheten. Det visar sig även att det finns förbättringspotential när det gäller de olika åtgärderna för att stärka motståndskraften i framtiden. Detta är framför allt att nå ut till allmänheten när det kommer till riskhanteringsstrategierna, samt få in fler gröna ytor i staden.
2

Urbana värmeöar : En het fråga för framtida Sverige

Stiernblad, Emmy January 2020 (has links)
This paper examines the phenomenon known as urban heat island and its consequences on public health, pollution and how it can affect energy use in homes and workplaces. Moreover, in this paper it has been discussed how city and regional planners can reduce high temperatures impact on Swedish urban areas. Lastly the phenomenon’s presence and visibility have been studied in a Swedish context. This has been executed by studying reports and papers published by Swedish government agencies, analyzing Swedish municipalities comprehensive plans and by interviewing the city Architect of Umeå.The conclusion that can be drawn from the result of this paper is that the urban heat island phenomenon will be more prominent and will be having a relatively large impact on Swedish urban areas in the future. The study done for this paper also show that higher temperatures in urban areas can make an impact on public health, especially children and elderly might endure health disadvantages during a heat wave. Higher temperatures in cities abroad are linked with a higher usage of expensive air conditions and higher levels of air pollution. However, there are multiple measures that can be implemented in urban areas that can reduce the consequences of higher temperatures. This essay presents multiple adjustments for urban areas. However, the studies done for this paper show that Swedish government and municipal officials’ knowledge about urban heat islands are either quite poor or are rarely taking measures to adapt urban areas to higher temperatures.
3

Det finns inget dåligt väder, bara dåliga bostäder : Kartläggning av bebyggelse med risk för höga temperaturer i Kalmar läns största tätorter / There’s no bad weather, only lousy residences : Mapping of buildingswith risk of high temperatures in Kalmar County's largest cities

Johansson, Victor January 2021 (has links)
Global warming risks overthrowing the Earth's climate system, which would mean thatmany communities need to be reshaped and adapted to a new climate. The PublicHealth Agency of Sweden has run a project during the years 2017-2019 that aims toincrease society's ability to identify, prevent and manage harmful heat in existingbuildings. The project focuses on covering the occurrence and developing measures toprevent heat stress in both urban outdoor- and indoor environments. The agency has commissioned a GIS method which, based on the buildings' groundcover, aims to identify areas that are at risk of developing harmful temperatures. Themethod is based on first calculating the total land area of the cities in order to be able tocalculate the proportion of the area covered by high vegetation, hardened surfaces,building bodies and low vegetation. Based on this calculation, areas with a highproportion of paved surfaces and building bodies as well as a low proportion of highvegetation have been identified as areas with a higher risk of developing harmfultemperatures. In this essay, the method has been used to identify risk areas in KalmarCounty's largest cities; Kalmar, Västervik and Oskarshamn. High temperatures can be dangerous for all people, but elderly people are highlighted asa particularly vulnerable group as they have a reduced ability to regulate bodytemperature. Therefore the survey of the thesis has been supplemented with data onwhere people over the age of 65 live in relation to the risk areas in order to make furtherpriorities in where the measures are needed the most. The conclusion is that the need for cooling measures in the mapped cities is greatest inthe urban centers, as the high density of urban areas there provides good conditions fordeveloping high temperatures while a large part of the old population live in thesecentral areas. Several industrial areas have been identified as risk areas in all mappedcities, but there the need for cooling measures is less as they are usually located on theoutskirts of the cities and lack residents over 65 years. The exception is the OldIndustrial Area in Kalmar, whose central location and the circular design of Kalmarindicate that high temperatures develop here at night, which can drive the urban heatisland in the city.
4

Mobilitetstjänster som ett verktyg for lindring av urban värme : En studie om kopplingen mellan urbana värmeöar och mobilitetstjänster med fokus på konsultens roll i implementeringen / Mobility services as a tool for the alleviation of urban heat : A study of the connections between urban heat islands and mobility services with a focus on the consultants' responsibilities in the implementation process

Bodegren, Tuwa, Hanna, Joanna January 2024 (has links)
För att bromsa effekterna av klimatförändringarna i urbana miljöer krävs det omfattande vetenskaplig forskning inom alla områden. Till en början för att öka medvetenheten om alla oklara frågor och aspekter av effekterna av ett förändrat klimat - och sedan som ett verktyg för att skapa holistiska lösningar som bör sträva efter att lösa en sammansättning av problem inom samma insats. Med denna studie vill vi belysa vikten i sammanhållen stadsuteckling för att lyckas med klimatanpassning. Både effekter av och orsaker till urbana värmeöar är något som träder fram över längre perioder av tid, samt påverkas av permanenta och storskaliga förändringar. Argument för implementeringen av insatser såsom alternativa sätt av mobilitet blir därmed mer realistiska och genomförbara genom att belysa vikten av en mer storskalig, övergripande och gemensam planering. / To cultivate efforts to curb the effects of climate change in urban spaces, a multitude of scientific research across all features is necessary. First, as a step to raise awareness to every obscure issue and aspect of the effects of a changing climate; and second as a tool to create holistic solutions which should strive to solve a compund of issues within the same action. With this thesis we want to illustrate the importance of a cohesive urban development to be able to succeed in climate change adaption. Both effects and causes of urban heat islands appear over time and are affected by permanent and grand changes in the urban environment. Therefore, arguments for the implementation of actions such as alternative ways to confront mobility become more realistic and achievable through illustrating the importance of a more holistic and united urban planning approach.
5

Vulnerable Populations and Urban Heat Islands: A Spatial Analysis of Socio-Demographic Factors and Heat Exposure in Stockholm / Sårbara Befolkningsgrupper och Urbana Värmeöar: En Spatial Analys av Socio-Demografiska Faktorer och Värmepåverkan i Stockholm

Godée, William, Lemna, Hugo January 2023 (has links)
The important urban issue of urban heat islands in Stockholm is examined in this thesis. These places influence urban sustainability, liveability, and public health because of the much higher temperatures they experience relative to their surroundings. This thesis objectives were to discover these urban heat islands, comprehend their patterns, investigate how they relate to sociodemographic characteristics, and identify vulnerable areas. Advanced remote sensing techniques and analytical techniques were used to locate and show urban heat islands. The procedure produced visualizations of urban heat patterns, illuminating the geographical distribution and intensity of these islands as well as the urban zones most exposed to risks from heat.The study found a link between hotter temperatures and places with higher population densities, as predicted by the authors. Regression analysis and visual inspection both support this link, which underlines the impact of population dynamics on the local environment and the necessity for people- centered urban development. Additionally, a connection was shown between warmer areas and locations with a non-Swedish population. This finding suggests possible differences in heat exposure and raises concerns about the urban heat occurrence in same areas as where vulnerable socio- demographic factors appear. However, more thorough research is needed to determine the underlying reasons behind this link.The lack of a significant relationship between age groups or income levels and the prevalence of urban heat in the thesis suggests that Stockholm's vulnerability to heat may not be highly associated with these variables. This highlights the complexity of urban heat and its effects. A vulnerability map was made using data from previous research on groups that are vulnerable and causing factors. It was possible to identify regions where vulnerable socio-demographics factors and heat zones overlapped when compared to the heat map, which was useful information for developing the vulnerability map, that identified the areas in need of more resources.

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