Riverside Cities Research Articles

The possibility of fulfilling the needs of senior individuals through the activation of waterfront areas using mobile architectural-urban elements

The aim of this article is to attempt to answer the question of how to enhance the fulfillment of needs for senior citizens residing in riverside cities. To achieve this, an attempt was made to develop the principles of a cohesive system that enables the activation of waterfront areas located in urbanized regions, often affected by a deficit of green spaces. The concept presented in this article is based on a consistent focus on architectural and urban design solutions that provide opportunities for functional enrichment of underutilized riverside areas for recreational purposes. Based on literature studies, field research, and design analysis, this article demonstrates the possibility of taking a structural approach to implementing changes in the utilization of green spaces located by the water in contemporary cities. Using the results of the analysis, an original system called the mobile architectural-urban elements (mobilne elementy architektoniczno-urbanistyczne - MEAU) was developed to activate the untapped potential of waterfront areas to meet the specific needs of senior citizens. The research objective outlined in the introduction led to the development of a solution based on the utilization of floating architecture for the establishment of services and amenities that enable comfortable and diverse leisure activities for the elderly. Additionally, it was demonstrated that the described approach aligns with the multidimensional vision of improving the well-being of users, as defined by the European Commission in the New European Bauhaus (NEB) program. The analysis conducted in this article allows for preliminary confirmation of the hypothesis that the specific needs of senior citizens can be fulfilled through the activation of waterfront areas using MEAU located on the water. Such actions not only activate existing resources but also align with the guidelines of the NEB idea, providing a coherent and applicable model with significant implementation potential for most waterfront cities. Med Pr Work Health Saf. 2024;75(3):211-222.

SCIENTIFIC APPROACHES TO ORGANIZATION OF "BLUE-GREEN" URBAN INFRASTRUCTURE IN CONDITIONS OF CLIMATE CHANGE

The study is dedicated to a crucial aspect of the revitalization and ongoing development of Ukrainian cities: addressing environmental challenges through the establishment of "blue-green" urban infrastructure. The overarching objective of this research is to apply current scientific knowledge concerning this matter to local urban planning practices. This is achieved by incorporating ecosystem-based solutions to foster sustainable development within the region. Fundamental concepts essential for shaping the framework of "blue-green" urban infrastructure in the context of climate change are elucidated. The paper introduces a model for a riverside city, emphasizing the integration of a natural water feature - such as a river, including its tides where applicable - and the surrounding coastal areas. It is discerned that a networked structure characterizes settlements along riversides. The role of the city's "blue-green" infrastructure in adapting to climate change is articulated. This includes conserving water resources, averting floods and other natural disasters, preserving biodiversity, mitigating the heat island effect, and enhancing air quality. Furthermore, a tailored adaptation model suitable for riverside settlements is developed, accompanied by the author's recommendations. An analysis of current scientific approaches within the domestic academic and practical sphere is provided, focusing on the integration of green and water elements. These approaches encompass: a) establishing the “water-green diameter” of the city, b) devising plans for water-green zones, and c) organization the “blue-green” urban infrastructure—an idea introduced by the author. The study identifies potential challenges and hurdles in implementing the “blue-green” infrastructure concept along the coastlines of river settlements. These challenges include the environmental aftermath of military aggression, existing development of territories, ecological sustainability, public support, regulatory frameworks, etc. A theoretical examination of the “blue-green” infrastructure underscores its potential as an innovative and crucial instrument in cities' adaptation to climate change. This framework aids in resolving issues associated with escalating temperatures, floods, air pollution, and the decline of biodiversity. Profound comprehension of the constituents and functions of “blue-green” infrastructure empowers us to better tailor our urban environments to climate fluctuations, thus fostering more sustainable and habitable cities.

A comparative study of the influences of park physical factors on summer outdoor thermal environment, a pilot study of Mianyang, China

Along with global climate change and urbanisation, the thermal environment is increasingly worse in summer, especially (sub)tropical regions. In recent decades, approaches improving the thermal environment have been frequently investigated. Factors of urban design, planning, and landscaping have been found thermal relevant. These factors were indicated by sky view factor (SVF), vegetation cover, leaf area index (LAI) etc. However, most studies focused one single factor, thermal performance difference between various factors were rarely explored. This study compared park canopy closure (PCC) and LAI about their effects on park thermal comfort indicated by various indices (air temperature, Ta; mean radiant temperature, MRT; and physiological equivalent temperature, PET). The PCC was different from LAI by leaf layer quantity (overlapping). Through a field measurement conducting in 8 parks around Mianyang (a subtropical riverside city, China; summer of 2018). The results revealed, both PCC and LAI were significantly thermal effective, LAI showed less significant thermal effects than PCC in linear models. That is to say, leaf layers had little effect linearly. The effects of PCC on the various indices varied for daily periods, with a significant effect on MRT during the day, Ta in the evening, and PET throughout the day. Increasing PCC from 0 to 1 could reduce PET by 29.44 °C (afternoon, R2 = 0.4928). Findings of this study confirmed the different environmental factors’ impacts on microclimates and distinguished the characteristics of various thermal indices.

Physical resilience of riverside cities against floods

Human societies today pay attention to natural disaster control more than ever, yet floods are still among destructive hazards. Researchers are constantly seeking solutions to mitigate the damages associated with floods and increase urban resilience against them. This study explored the assessment of urban physical resilience to floods, rapid recovery from flood shocks, and enhancement of urban functioning over time. This was an applied study using a descriptive-analytical method. The research population consisted of experts in urban affairs. First, the research variables and indices were extracted through the theoretical foundations, and then, validity testing was used to identify the most effective indicators. A review of the research literature showed a lack of consensus on a coherent model for flood damage assessment across different urban zones and the identification of effective indices. Therefore, HEC-GeoRAS (a program for inundation mapping) was used for flood Vulnerability zoning of the Cheshmeh Kileh River Region, Based on this, three zones Vulnerable to floods were determined. The proposed model and its algorithms are structured based on GIS statistical modeling, which accurately zones the urban fabric around the river based on Vulnerability severity and accurately identifies vulnerabilities. This model did not follow the current methods that limit river buffer zones to two categories inside and outside the river's buffer zone; rather investigated the zones based on the Vulnerability severity of urban cover classes (e.g., roads and buildings). The research findings suggest that the conditions of the existing buffer zone deviate from those recommended by the modeling results. Meanwhile, a historical analysis of floods shows that the affected areas match those identified by the software. In all studied zones, the primary cause of the Vulnerability is the absence of surface water drainage networks, non-standard constructions, and road network-related restrictions, which exacerbate the crisis conditions. The existence of large area (coarse-grained) plots can be considered a point of strength in all zones, which presents an opportunity to modify the urban fabric in the future.

Development of brake activity measurement method for heavy-duty vehicles

ABSTRACT Tailpipe PM (particulate matter) emissions have been reduced due to decades of tightening regulations, however non-tailpipe PM emissions are not regulated and are expected to become a significant source of traffic-related PM emissions. Previous studies have focused on emission measurement from laboratory and track tests. Their findings suggest brake wear PM emission rates are dependent on brake activity. Therefore, it is important to characterize brake emissions by first understanding the real-world brake activity from many different vehicle vocations and driving conditions. The goal of the current study is to establish a test method and analysis for brake activity measurements of heavy-duty vehicles. In this study, brake fluid pressure and brake pad temperature were measured for a heavy-duty vehicle during chassis and on-road driving tests. The chassis tests consisted of the Central Business District (CBD) cycle representative of a repetitive stop-and-go driving pattern of a bus, and the Urban Dynamometer Driving Schedule (UDDS) cycle representative of urban driving conditions of heavy-duty vehicles. The on-road tests consisted of a local Riverside City route focused on urban roads at low vehicle speeds with frequent braking, while the second route from Riverside City to Victorville focused on highway driving and downhill braking. The brake pad temperature of the triplicate CBD cycle gradually increased linearly with a slope of 2.3°C/min and the temperature per kinetic energy lost during braking increased by 2.3 × 10−5°C/J for the CBD cycle. The UDDS cycles had the largest kinetic energy loss between 3.2 × 103 to 3.0 × 105 J in the histogram. The local Riverside city route brake temperature increased by 2.0°C/min. The kinetic energy loss for the on-road tests were one order of magnitude larger than that of the dynamometer tests due to brake events occurring under higher speeds. Implications: The non-tailpipe source contributions to traffic related particulate matter (PM) emissions have surpassed that of tailpipe emissions. The results of this work provide a measurement method to obtain brake activity information for a heavy-duty vehicle, which is critical estimating emission inventory accurately.

How Homeownership, Race, and Social Connections Influence Flood Preparedness Measures: Evidence from 2 Small U.S. Cities

ABSTRACT Climate change and changing built environments are changing flooding regimes. Since flood management policies often rely on household preparedness, understanding what factors shape household flood preparedness measures is imperative. We focus on three dimensions: race, participation in local organizations, and homeownership as moderated by flood experience. With survey data from two small riverside cities in the northeastern United States, we examine how these factors affect the adoption of low-cost and high-cost flood protection measures. We find that effects of flood experience vary across renters, mortgage-holding homeowners, and homeowners without mortgages, and patterns differ for low-cost and high-cost measures. In regression models that control for other factors, white residents take more low-cost measures than nonwhite residents. Among households in locations with greater flood risk, nonwhite households take more high-cost flood protection measures. Community group participation has a positive effect on low-cost protective measures, and the effect is more pronounced among floodplain residents. Processes related to both race and homeownership shape people’s access to flood preparedness measures. Understanding patterns of household flood protection may help in identifying leverage points for ameliorating disparities in flood vulnerability across communities.

The effects of riverside cities on microplastics in river water: A case study on the Southern Jiangsu Canal, China

Microplastics, which are usually recognized as artificial polymer particles with a particle size <5 mm, have attracted much attention as new pollutants in recent years. Urban areas are a major contributor of microplastics to the environment, but their microplastic emission intensity and characteristics are not clear. In this paper, the microplastic abundances and characteristics in the Southern Jiangsu Canal were studied to reveal the effect of riverside cities on microplastics in river water. The results show that the microplastic abundance in the water body of the South Jiangsu Canal ranges from 3.41 to 19.07 particles L−1, with an average of 9.59 ± 3.95 particles L−1, which is at the same level as major urban agglomerations in the world. The top five polymers were polyethylene terephthalate (PET), polycarbonate (PC), polyethylene (PE), chlorinated polyethylene (CPE) and polyurethane (PU). Fragments accounted for the largest proportion (68.47 %), followed by beads and fibers. Most microplastics were <100 μm (83.87 %). Human life and industry in riverside cities contribute significantly to microplastics in the Southern Jiangsu Canal water. After flowing through the cities, the microplastic abundance in the canal water increased by 26 % ~ 211 %. The overall economic and social development of the city affects the occurrence characteristics of the canal water microplastics. The average abundance of microplastics was positively correlated with Regional Gross Domestic Product (GDP) per capita. Wastewater treatment plant effluent is an important point source of microplastics in canal water. The microplastic abundances downstream of WWTPs increased by 21.8 % ~ 64.6 % compared with those upstream.

SPATIAL ADAPTABILITY PATTERN OF RIVERSIDE KAMPONG COMMUNITIES IN GANG NIBUNG SAMARINDA

Each settlement has specific characteristics and characteristics based on their respective backgrounds. Gang Nibung Samarinda is an urban kampong settlement on the banks of the Karang Mumus River of Samarinda City. Characteristics of riverside settlements are different from settlements that do not have rivers, these characteristics can be reviewed from how the community adapts to be able to use space on housing and environment in riverside city villages. The community adapts to be able to meet its needs causing changes in residential space and environmental space. Characteristics of the condition of the Gang nibung settlement site, which is mainly surrounded by rivers, make the orientation of occupancy facing towards the river makes the space on the riverbank becomes used space for its people. This study uses field study methods in reviewing space adaptation activities in riverside villages. This research uses field study methods in reviewing space adaptation activities in the riverside village environment. The results showed that the adaptability pattern of space is influenced by the pattern of the type of clarity of the activity that is accommodated, the pattern of openness of the design of a space, and the pattern of the relationship of space with the surrounding environment.

Spectrum of neurological diseases across gangetic belt: a hospital based prospective observational study

Objective Neurological disorders are the most common cause of morbidity and mortality in riverside cities. Earlier studies reported the presence of heavy metals in the riverside of Gangetic belt. Our study objective was to determine the prevalence of neurological diseases in Ganga riverside and further divided into sections as just across riverside within 25 kms and non-riverside as 25 kms away from the Ganga river. Methods This was a prospective observational study conducted in a tertiary care hospital of selected Gangetic belt. Results A total of 2016 patients were recorded in this period. Mean age of the participants was 47.89 years, majority were males 59.2%. Most of the patients n = 1154 were from within 25 kms of Ganga riverside and n = 862 patients were from non-riverside (25 kms away from Ganga river). Common neurological diseases were ischemic stroke 22.7%, haemorrhagic stroke 20.7%, seizures 13.7%, septic encephalopathy 9.4%, neuropathy 8.9%, Parkinson’s disease 4.3%, myopathy 4.1%, myelitis 2.8%, headache 2.4%, amyotrophic lateral sclerosis 1.9% and functional disorder 1.9%. Conclusion Present study showed that neurological diseases were more common in Ganga riverside and stroke including ischemic and hemorrhagic are most common neurological diseases noted in our study.

Caracterização da situação socioeconômica e identificação de fatores de risco para câncer cervical em comunidades ribeirinhas da Região Xingu – Pará

Introdução: O Câncer do Colo do Útero (CCU) é considerado um grave problema de saúde pública, sendo o terceiro tumor mais frequente na população feminina e a quarta causa de morte de mulheres por câncer no Brasil. Considerando a importância do rastreio de CCU, sobretudo em comunidades ribeirinhas, este estudo objetiva apresentar características do rastreamento do câncer do colo do útero em populações ribeirinhas da região Xingu-Pará. Metodologia: trata-se de um estudo descritivo, transversal com abordagem quantitativa, com mulheres residentes em cidades e comunidades ribeirinhas, que buscaram o serviço de saúde para realização do exame preventivo do CCU. Resultados: As mulheres ribeirinhas rurais em sua maioria são pardas, com ensino fundamental incompleto, renda familiar inferior a um salário, já as mulheres que residem em cidades ribeirinhas há predominância de cor parda com ensino médio completo, renda familiar de um salário mínimo. Registra-se dentre os fatores de risco, a coitarca precoce, multiparidade e histórico familiar de câncer de colo de útero. Discussão: O perfil sócio econômico demonstra que as principais características das mulheres entrevistadas há predominância da raça/cor parda, seguida da cor preta e com baixo grau de escolaridade e baixa renda familiar e os fatores registrados como de risco para adoecimento são mais evidentes em mulheres ribeirinhas rurais. Conclusão: Esse estudo concluiu que é necessária uma atuação diferenciada entre as mulheres das comunidades ribeirinhas. Fazem-se necessárias ações contínuas com envolvimento entre unidades de saúde e população, principalmente por serem populações com maior dificuldade de acesso aos serviços de saúde.

Surface Urban Heat Island (SUHI) Over Riverside Cities Along the Gangetic Plain of India

Rapid urbanisation in India has led to increased land use and energy demand, and the consequent uncontrolled development and increased human-induced activities are changing the micrometeorology and the local environment. Of late, the surface urban heat island (SUHI) effect is quite evident in India. It is known that river banks are where the most densely populated cities can be found around the globe, and the River Ganga (Ganges) in India is no exception. Town/cities located over the Gangetic Plain are witnessing a fast urbanisation, and associated perturbation is taking place in the micro/meso-scale meteorology/environment. Discussion about the influence of the river on the SUHI and dynamics over different cities along a single major river is needed, and therefore this study is undertaken to investigate the SUHI effect on riverside towns/cities over the Gangetic Plain, India. For this purpose, the observation data for the period of 2001–2014 from the Terra-MODIS satellite are used. The study quantifies the land surface temperature (LST) under different zones namely urban, suburban, and rural, delineated on the basis of International Geosphere Biosphere Programme-Land Cover (IGBP-LC) products. The intensity and trend of SUHI are measured as an indicator of environmental and micro-climate change. The study found a prevailing regime of nighttime SUHI intensity (SUHII) as well as the daytime formation of SUHI. The interaction of the wind blowing from the river and other land cover to towns/cities was examined with respect to the SUHII of Kanpur and Patna and was found to be quite important.

Pilot Application of Flood Management Techniques for Urban Planning in Smart Cities around Rivers - The Case of Busan Eco Delta Smart City -

Considering the recent trend of climate change and increased flood risk from urbanization, it is necessary to prepare for floods when developing a riverside city. Both of the national pilot smart cities in South Korea are located along the river, but the flood management technique based on the characteristics of smart city remain insufficient. This study presented flood management techniques for smart cities around rivers from urban planning perspective through the analysis of characteristics of domestic and foreign smart cities and applied the technique to the Busan Eco Delta Smart City as a pilot study. The study results confirmed the feasibility of the technique in smart city development in consideration of flood risk, which would help towards an effective and efficient flood reduction planning. Although the applicability of the technique in land use and building projects has been confirmed in this study, further review would be needed for the creation of housing complex and building adaptation.

Swings and Roundabouts: How Multitasking Local Officials Respond to Environmental Regulation

We exploit how local officials respond to environmental regulation as economic growth remains the top priority in China. Chinese central government implemented a strict environmental regulation on both air and water pollution since 2006. However, water pollution control is only valid for some riverside cities, not like the commonly applied air pollution control. We find that the additional water pollution control crowds out the effort of local officials on air pollution control and damages the health of residents in riverside cities.

A dimensão regional na formação da vida cultural no Meio Norte

&lt;p&gt;Pesquisa sobre as bases econômicas, sociais e culturais comuns entre os atuais estados do Maranhão e do Piauí e as demandas infraestruturais envolvidas na formação de vida citadina. É feita segmentação historiográfica em dois períodos respeitantes à fase luso-americana e à anexação do território piauiense ao Maranhão. Propõe-se como base epistemológica a segmentação histórica e qualitativa em quatro períodos. Estabelecimento de componentes históricas relativas à anexação do território do Piauí ao Maranhão, formação da economia agroexportadora do gado, processo de migração, formação das cidades ribeiras e o papel exercido pelos rios da sub-região Meio Norte na dinâmica de circularidades entre os municípios com reflexos na formação da vida musical. Conclui-se que o processo histórico do Meio Norte repercute na atualidade musical dos dois estados. &lt;/p&gt;

Long-Run Environmental and Economic Impacts of Electrifying Waterborne Shipping in the United States.

Emissions from ships in and surrounding ports are a major contributor to urban air pollution in coastal and inland riverside cities. Connecting docked ships to onshore grid electricity and using electric tugboats are two approaches to reduce pollution damages. This paper examines the effects of the widespread adoption of electrification in waterborne shipping. Our study is novel in the use of an equilibrium model of the U.S. energy system to capture the effects of increasing electricity generation to electrify waterborne shipping both with and without a carbon pricing policy. We examine three scenarios, Electrifying in ports, Electrifying in Emission Control Areas, and Electrifying all U.S. vessel fuels, as well as an electrification scenario under carbon pricing, allowing electrification of waterborne shipping to contribute to deeper decarbonization. We find that electrification results in slight carbon emission reductions in early projected years and that the reductions increase as the electric grid evolves out to 2050. We also show that an ambitious scenario of electrifying all U.S. vessel fuels results in up to 65% net reduction in air pollution as we approach 2050, even after accounting for the pollution increase from grid generation. Our baseline results indicate that intensive waterborne shipping electrification can provide considerable social benefits that exceed the costs, especially as the electric grid decarbonizes.

Shaping relations between natural and artificial landscapes on the example of selected riverside cities: Budapest and Rzeszow

The article discusses the nature of the relationship between the natural landscape and the transformed landscape. The description of these ties was limited to two interdependent and simultaneously contrasting creatures - a river of a fully natural landscape and a city as an artificial landscape resulting from the Anthropos genic transformations. The relationship between these two opposing types of landscapes is centuries-old and thus constitutes a rich source of search and study of human-environment relations. The direct reason for addressing this issue is a gradual change in the approach to landscape shaping of the river valley existing with the urban landscape. Clear transformations of these dependencies and the creation of a return of the city to the river can be observed, for example, in the London docks or Mill Island in Bydgoszcz in Poland. The research area is the coastline of two administratively, culturally and historically different European cities: the Wislok coastline in Rzeszow, the capital of the voivodeship in south-eastern Poland, and the Danube coastline in Budapest, the capital of Hungary. In Budapest, the coexistence of the river and the city is very clear, and their mutual connections are historically anchored and clearly visible in the city’s urban structure. On the other hand, the dynamic changes that have taken place over the centuries in the riverbed of Wislok in Rzeszow caused that the river is not the urban axis of the city and did not significantly affect its urban layout in the past. Throughout most of its existence, the city was formed in fear of the river. The comparison of the shape of the coasts of the cities mentioned above resembles a master - pupil relationship. The two cities share a historical link with the river valley, but the degree of development of these relations varies considerably. The observation was used as a research method. The selected cases are the family towns of the authors, which made it possible to confront the results of literature research, mainly related to the historical layer, with long-term observations of the discussed areas. The article also defines the features distinguishing riverside cities and the advantages and fears resulting from the coexistence of these two seemingly contrasting landscapes.

Cruise Ship Dock Landscape Design Based on Figure-ground Relation

Li, Y.-R., 2019. Cruise ship dock landscape design based on figure-ground relation. In: Gong, D.; Zhu, H., and Liu, R. (eds.), Selected Topics in Coastal Research: Engineering, Industry, Economy, and Sustainable Development. Journal of Coastal Research, Special Issue No. 94, pp. 547–551. Coconut Creek (Florida), ISSN 0749-0208.The main object of the thesis is the landscape of the middle and lower reaches of the Yangtze River. The practice research on the landscape of the riverside city in the middle and lower reaches of the Yangtze River is made, and the situation of the landscape of the city wharf facing the river is statistically summarized. The design characteristics and causes of the use of the dock landscape space are discussed. The construction status of the dock landscape space is specifically investigated, and the utilization method of the dock landscape space is summarized. This paper analyses the design content and spatial function of the landscape space of the cruise ship terminal, and finally summarizes the design strategy of the landscape space utilization of the cruise ship terminal. Based on the research and analysis of the practical case of the cruise ship dock landscape space, the method of designing and utilizing the landscape space of the cruise terminal is summarized, which has certain theoretical guiding significance for the corresponding dock landscape case design.

A CENTRALIDADE EM UMA CIDADE RIBEIRINHA DA AMAZÔNIA: PARINTINS-AM/ The centrality in the riverside city of amazon: Parintins-AM

O entendimento da centralidade intraurbana é fundamental para identificar a importância das funções que a cidade exerce para si e para o entorno. A pesquisa que deu origem ao presente artigo consistiu em caracterizar a centralidade urbana em Parintins-AM, e descrever a influência da dinâmica do rio, identificando duas áreas de contato: a beira, na parte norte da cidade às margens do rio Amazonas e a “Lagoa da Francesa” na área interna da cidade. As pesquisas de campo possibilitaram entender que o regime hidrológico faz com que ocorra a inversão nos fluxos, a transumância urbana com o deslocamento das embarcações e, consequentemente, dos prestadores de serviços, como: vendedores ambulantes, mototaxistas, taxistas e tricicleiros, dentre outros. Esse processo contribui para a mudança da centralidade culminando no que se identificou como centralidade móvel.

Stable Isotope Ratios in Tap Water of a Riverside City in a Semi-Arid Climate: An Application to Water Source Determination

Stable isotopes (e.g., δ2H and δ18O) in tap water are important tools to understand the local climate or environment background, water sources and the state of regional water supply. Based on 242 tap water samples, 35 precipitation samples and 24 surface water samples gathered in the urban area of Lanzhou, the basic spatiotemporal characteristics of isotopes in tap water, their connection with isotopes in other water bodies and change during the process from raw water to tap water are discussed in detail, combining the information of local tap water supply and water source. It can provide reliable help for understanding the isotope characteristics of local tap water, regional water supply management and determination of tap water source of in a small area. Except for the establishment of a new data set of isotopes in tap water with complete time series and uniform spatial distribution of sampling sites, other results show that: (1) The Local Tap Water Line (LTWL) of Lanzhou is δ2H = (6.03 ± 0.57) δ18O + (−8.63 ± 5.44) (r2 = 0.41, p &lt; 0.01). (2) For seasonal variations, δ2H and δ18O in tap water both are higher in autumn and lower in spring. The diurnal and daily variations of isotopes in tap water are not large. As for spatial variations, the monthly mean values of δ2H and δ18O in tap water at each sampling site show little difference. The isotopes in tap water collected from one single sampling site can be considered as a representative for isotopes in tap water in the area with a single tap water source. (3) Isotopes in tap water show weak connection with precipitation isotopes, but exhibit good connection (consistent seasonal variation, similar numerical range, small numerical difference and high correlation) with isotopes in surface water, which is the direct water source. Isotopes in water change little from raw water to tap water. Isotopic composition of tap water in Lanzhou can be used as a representative of isotopes in surface water.

Análisis de la susceptibilidad por inundaciones asociadas a la dinámica fluvial del río Guatiquía en la ciudad de Villavicencio, Colombia

Los ríos tropicales de piedemonte, por sus características sedimentológicas, hidrológicas e hidráulicas, generan cauces trenzados con múltiples canales que varían en número y dimensión en un lecho mayor, dependiendo de las condiciones climáticas. En este artículo se presenta el análisis del comportamiento morfodinámico de un río tropical de piedemonte en Colombia (río Guatiquía), como base para la evaluación de la susceptibilidad por inundaciones de una población ribereña (Villavicencio). El estudio se realiza mediante (i) el análisis de información histórica consultada en reportes técnicos del Instituto de Hidrología, Meteorología y Estudios Ambientales (IDEAM), del Instituto Geográfico Agustín Codazzi (IGAC) y del Servicio Geológico Colombiano; (ii) el estudio de series hidrológicas; (iii) el procesamiento e interpretación de fotografías aéreas e imágenes de satélites multiespectrales en un periodo de 78 años; así como a través de (iv) la elaboración de la cartografía geológica y geomorfológica con controles de campo. Se determinó, por un lado, el comportamiento dinámico de los cauces trenzados dentro del límite del lecho mayor del sistema fluvial y, por otro, la susceptibilidad a las inundaciones en la ciudad de Villavicencio, con 64,7 ha en categoría media-alta y 17,9 ha en categoría alta.Ideas destacadas: artículo de investigación sobre el modelamiento de amenazas por inundaciones relacionadas con la dinámica poblacional.