Logo des Repositoriums

Auflistung nach Autor:in "Storch, Harry"

1 - 10 von 13
  • Konferenzbeitrag
    A scenario-based approach to assessing the exposure and flood risk of Ho Chi Minh City’s urban development strategy in times of Climate Change
    (Innovations in Sharing Environmental Observations and Information, 2011) Storch, Harry; Downes, Nigel K.; Rujner, Hendrik
    Asian cities located in deltaic settings such as Ho Chi Minh City (HCMC), exhibit higher exposure levels to flood risk primary as a result of their location, their low elevation and if located in tropical regions, the significant annual variations of climatic and weather extremes they incur. The present assessment linking urban development and sea level rise (SLR) scenarios provides an initial estimation of the exposure of HCMC to potential flooding from the current high tide level (1.5 m AMSL). The scenarios also investigate how climate change is likely to influence HCMC’s exposure to coastal inundation due to SLR (+0.5 and +1.0 m) up to the year 2100, alongside rapid urbanisation. Focussing on projected land-use changes extracted from the official land-use plan up to the year 2010 and the draft version for the years up to 2025/30, a much more detailed analysis is provided than earlier studies carried out on the global or national level. The analysis focuses on the exposure of built-up land to current and future flooding, rather than estimating the ‘risk’ of flooding to population and long-lived economic assets, such as buildings, utilities and transport infrastructure.
  • Konferenzbeitrag
    Adaptation Planning Framework to Climate Change for the Urban Environment in Ho Chi Minh City
    (Environmental Informatics and Industrial Ecology, 2008) Storch, Harry; Schmidt, Michael
    The overall objective is to develop and incorporate adaptation into urban decision-making and planning processes with designation criteria and zones that will lead to an increase of resilience to climate-related physical and social vulnerabilities of the urban system of HCMC. Climate Change will likely change current climate conditions and lead to an ongoing sea-level rise and increase in extreme weather events such as heavy rainfall and heat waves etc. These climate related events cause a multitude of potential impacts and risks not only to natural areas but specifically to populations of densely built up metropolitan areas. In foreseeable future they may also cause indirect negative effects such as severe urban floods or disturbances of the energy supply or public transport systems in urban areas. The main task of assessing climate change related impacts in urban areas is to estimate the possible damages that might arise for human-influenced systems by climate change, including extreme weather events. In general there are two elements that define the potential risk: first, the probability of the occurrence of the events and second the “elements” at risk. Events to be included are heat waves, heavy rain, floods etc. "Elements” at risk are not only assets like houses, urban infrastructure services or economic losses, but also human health and livelihood.
  • Konferenzbeitrag
    Downscaling Climate Change Impacts to the Urban Area of Ho Chi Minh City using an Urban Structure Type Approach
    (Environmental Informatics and Industrial Environmental Protection: Concepts, Methods and Tools, 2009) Storch, Harry; Downes, Nigel; Moon, Kiduk; Rujner, Hendrik
    Climate risk arising from both climate variability and change is heterogeneous across a diverse range of spatial scales. At the global scale climate risk is generally assessed to be more acute in the coastal regions of developing and emerging countries which have significant exposure to climate hazards, but is additionally associated with the specific socio-economic context that exacerbates those hazards (Preston et al., 2006). At the national level, various sectors, ecosystems and regional subpopulations within these countries have been identified as being more or less vulnerable to changing future climatic conditions (IPCC, 2001). However, until today only few studies have attempted to explore the spatial heterogeneity of climate risk at smaller spatial scales, such as on the metropolitan or urban scale (Rosenzweig et al., 2000). As part of the research programme 'Sustainable Development of the Megacities of Tomorrow’ by the German Federal Ministry of Education and Research (BMBF), a suite of projects is being funded in conjunction with other partners to assess climate change risks and possible adaptation and mitigation strategies at the scale of mega-urban regions. These projects are linked through an emphasis on the integration of knowledge about changes in the climate system together with knowledge over the regional context of urban growth centres in which those changes will occur. These projects are focused, on building energyand climate-efficient urban structures to mitigate climate risk and to enable adaptation strategies on the urban scale. The research project ‘Integrative Urban and Environmental Planning for Adaptation Ho Chi Minh City to Climate Change Sustainable Strategies for Climate-Oriented Urban Structures, Energy-Efficient Housing Typologies and Comprehensive Environmental Protection for Megacities of Tomorrow’ emphasises the impacts of climate change and the identification of adaptation strategies for ameliorating those risks, including constraints and barriers on decision making.
  • Konferenzbeitrag
    Environmental Collaboration through Location-Based Mobile Messaging and Communication Tools
    (Informatics for Environmental Protection - Networking Environmental Information, 2005) Storch, Harry
    The analysis is focused on situated knowledge and demonstrates the institutional and technical context in which new ways to integrate local knowledge into conventional environmental information systems can take place. Therefore the system architecture is designed for a usability test of how locative multimedia messaging of user-created environmental information performs as a tool for collaborative environmental information management. In this usescenario, the environmental information space will become more social, reflecting the individual perceptions and social reality of the users in the physical environment, rather than reflecting the views of environmental organisations or authorities. While accepting that the concept of collaborative environmental monitoring is not without its own problems, it is relevant to explore how situated knowledge of the environmental situation that are addressed in a collaborative environmental information approach are also mobilised through the use of two-way communication systems. If it is possible to reliably connect environmental information (from official sources) and annotations (information that people have created), user-generated information becomes something more like a transparent information layer, overlaid atop the more structured institutional environmental data layer.
  • Konferenzbeitrag
    Indicator-based Urban Typologies Sustainability Assessment of Housing Development Strategies in Megacities
    (Managing Environmental Knowledge, 2006) Storch, Harry; Schmidt, Michael
    The paper is based on research experiences of the development of GIS-based sustainability indicators in the application area of urban planning in agglomeration areas. These indicators are related to the European DPSIR framework (Smeets and Weterings 1999): with a strong focus on indicators for assessing the impact of housing developments on the environment. They characterise driving forces and pressures related to demographic developments in agglomeration areas and their manifestation in the resulting land consumption and impacts on the environment. Housing-specific impacts on the urban environment are represented by per capita land consumption, land-use change patterns, and availability of environmental-related public services and infrastructure and the resulting sectoral impacts on environmental media. These indicators form the basis for spatial typologies that are based on intersections of housing-related environmental data and statistical demographic and socio-economic information. How the current lack of experience in the building and availability of these kinds of combined socioenvironmental indicators limits the spatial assessment of environmental impacts of land-use changes resulting from urban planning policies in mega-cities will be discussed. Special attention will be paid to the importance of understanding the spatial structure of settlement area in agglomeration centres in order to develop standards and thresholds for indicators compatible with the observed spatial typologies. A main component used to describe the spatial pattern of agglomeration areas are urban typologies and their occurrence within the built-up area. Finally, it will be explained that the successful implementation of planning-related information and monitoring systems in urban agglomeration areas, requires a strategy that does not further ignore the spatial structure, dimension or demographic and socio-economic dependencies of indicators of housing-related environmental impacts on the environment.
  • Konferenzbeitrag
    Konzeptionelle Anforderungen an Metadaten zur Steuerung der WebGISKomponente eines Umweltinformationssystems (UIS)
    (Umweltinformatik ’98 - Vernetzte Strukturen in Informatik, Umwelt und Wirtschaft - Computer Science for Environmental Protection ’98 - Networked Structures in Information Technology, the Environment and Business, 1998) Storch, Harry
  • Konferenzbeitrag
    Mobile Portals for Community-Based Collaborative Environmental Monitoring
    (The Information Society and Enlargement of the European Union, 2003) Storch, Harry
    Currently internet and mobile phone service providers and government agencies are seeking to reimpose the regime of the traditional pay-per-view paradigm in which the users of information and technology will left only with the power to consume 'officially' certified information and locked into the business models of the current eand mcommerce strategies. Computers have traditionally been disconnected from the situations in which they are used. Most distinguishing from traditional computers mobile communication devices are more related to their physical environment and situation of usage. Meanwhile driven by mobile computing there is an increasing interest in communitybased environmental monitoring, because sources of environmental information include more than official information from sensors at the scene, because humans, especially people on the spot, can also function as sensors. In this use scenario, mobile communication devices mutate into remote sensor devices for environmental monitoring. The increasing popularity of more sophisticated mobile communication devices will make mobile portals for community-based collaborative environmental monitoring more common in the future and has the ability to create goal-oriented virtual communities.
  • Konferenzbeitrag
    Personalisierung von Umweltinformationen: Konzeptionelle Anforderungen an Mobile Personalisierte Dienste in Zeit-räumlichen Kontexten auf der Basis von Individuellen Umweltbewertungsmodellen
    (Environmental Communication in the Information Society - Proceedings of the 16th Conference, 2002) Storch, Harry
    Das zentrale Versprechen von zukünftigen Informationsangeboten in einem mobilen Anwendungskontext ist, dass durch die Kombination von hochspezialisierten Kontextund Nutzerprofilen und entsprechend aufgelösten zeit-räumlichen Angebotskontexten eine neue Qualität von personalisierten Informationsangeboten möglich wird. Eine derartige Kontextualisierung ist zugleich eine wesentliche Voraussetzung für den Erfolg von mobilen Informationssystemen. Überträgt man dieses Paradigma auf öffentliche Umweltinformationsdienste, so ergeben sich anscheinend faszinierende Möglichkeiten einer Optimierung derartiger Angebote, da der Einsatz von kontextualisierten Nutzer-Profilen eine Automatisierung von Umweltbewertungsverfahren ermöglicht und somit hochgradig individualisierte Umweltsituationsbewertungen möglich würden. Eine theoretische Analyse zeigt das Potential sowie die Probleme bei der Übertragbarkeit des mobilen Paradigmas auf den Bereich der öffentlichen Umweltberichterstattung auf.
  • Konferenzbeitrag
    Spatial Information Management for Megacity Research in Asia
    (Environmental Informatics and Systems Research, 2007) Storch, Harry; Tuan, Bang Anh; Schmidt, Michael
    Asia offers an appropriate setting for the analysis of many of the institutional forces and the urban dynamics that impact the interconnections between humans and their management of environmental resources in the megacities of today (Lo and Marcotullio 2001). This paper presents significant initial results of the urban sustainability assessment research of housing policies at the urban planning level in Ho Chi Minh City (HCMC). The objective is to develop an urban planning information system based on urban growth theory to assist a more integrated approach to the future sustainable development of housing and settlement structures to balance urban growth and redevelopment in HCMC. Although environmentally inefficient settlement development structures are resulting in an ongoing unsustainable use of land-resources, planning instruments have their limitations to promote the necessary structural changes in spatial development planning. Based on current urban growth research, this paper offers an overview of available indicators that can describe the efficiency of regional and urban spatial structures in relation to land use and land consumption. A special focus will be laid on methodological issues of urban sustainability indicators and their spatial representation by urban typologies for the establishment of an urban planning information system in HCMC.
  • Konferenzbeitrag
    The Challenge of Spatial Information Management for Adaption to Climate Change in Ho Chi Minh City
    (Integration of Environmental Information in Europe, 2010) Storch, Harry; Downes, Nigel; Rujner, Hendrik
    The environmental dimension of spatial planning in emerging Asian megacities such as Ho Chi Minh City (HCMC) has become a strong rationale for coordinating spatially well defined adaptation actions and integrating mitigation policies. Climate change is changing the traditional context of urban development planning and is shaping the priorities of sustainability. While urban development trends in HCMC are addressing both mitigation needs and the rationale of adaptation to the effects of climate change, the main focus of combating climate change impacts in the megaurban region of HCMC has to be the practical implementation of adaptation measures. Planned adaptation implies policy decisions and measures at the urban-scale that facilitates the reduction of the adverse impacts of climate change. For HCMC it creates the necessity to take climate change responses into account in spatial planning practices. This will also lead to changes in the traditional administrative structures that spatial planning is accustomed to. Since many of the main impacts of climate change have a land-use or water-management dimension, a downscaled and spatially explicit urban environmental planning information system can function as a switchboard for mitigation, adaptation and sustainable development objectives. Currently there are large differences in the way knowledge is produced, the analytical approaches that are used and the designed urban and environmental planning strategies. The proposed sharing of a commonly accepted spatial information base can engage the dialogue between stakeholders and scientists in order to support the development of spatially explicit planning strategies that anticipate the climate change risks at the mega-urban scale and contribute to sustainable and resilient settlement structures for HCMC.