Diego Rybski
Datos Biográficos
| ID | 5031649 |
|---|---|
| NOMBRE | Diego Rybski |
| NOMBRES | Diego |
| APELLIDO | Rybski |
| FIRMA | RYBSKI D |
| AFILIACIONES | Leibniz Association |
| ORCID | 0000-0001-6125-7705 |
| VERIFICADO | Sí |
| TOTAL DE OBRAS | 25 |
| TOTAL DE CITAS | 1 |
| TOTAL COMO AUTOR | 25 |
| TOTAL COMO EDITOR | 0 |
| PRIMER AÑO DE PUBLICACIÓN | 2007 |
| AÑO MÁS RECIENTE DE PUBLICACIÓN | 2026 |
| ÍNDICE H | 1 |
Commentary
One-dimensional urban scaling
In this paper, we use recent findings from urban scaling theory to evaluate how it could be applied to a one-dimensional archetypal city. Our focus is on how the simplicity of a one-dimensional model can provide intuitive insights that might be obscured in more complex, multidimensional models. With this instructive model, it is possible to visualize that if the population’s accessibility decreases more slowly than the increase in distance, an ag…
Urban green space percolation
Urban green spaces (UGS) are increasingly planned as connected networks, yet many connectivity assessments reduce cost variation to a static threshold and provide limited guidance on where to intervene. We develop a percolation-based framework for translating dynamic UGS connectivity into ecological management priorities. The framework constructs a least-cost, cost-weighted UGS network, activates edges in ascending cost-weighted distance to ident…
Integrating agriculture into European urban landscapes matters
Urban agriculture has emerged as a pathway to enhance food security, improve urban resilience, and reduce the environmental impact of food systems. However, its potential across cities remains underexplored. This study offers a systematic evaluation of the potential for low-tech, open-air, soil-based urban vegetable production in European cities, examining its role in meeting local food demand and contributing to sustainability goals. Leveraging …
How buildings change the fundamental allometry
We demonstrate that the original fundamental allometry alone cannot accurately describe the relationship between urban area and population size. Instead, building height is a third factor that interplays with area and population. To illustrate this, we propose a straightforward model based on the idea that city area is the result of people’s desire to live close to one another while also having sufficient living space . This leads to a more gener…
Commentary
Recent advances in data science and urban environmental health research utilise large-scale databases (100s-1000s of cities) to explore the complex interplay of urban characteristics such as city form and size, climate, mobility, exposure, and environmental health impacts. Cities are still hotspots of air pollution and noise, suffer urban heat island effects and lack of green space, which leads to disease and mortality burdens preventable with be…
A large share of Berlin’s vegetable consumption can be produced within the city
Quantitative evidence for leapfrogging in urban growth
Urban growth can take different forms, such as infill, expansion and leapfrog development. Here we focus on leapfrogging, which is characterised as new urban development bypassing vacant land. Analysing a sample of 100 global locations, we study the probability that land cover is converted from non-urban to urban as a function of the minimum distance to existing urban cells. The probability decreases with the distance but in many of the considere…
Singularity cities
We propose an upgraded gravitational model which provides population counts beyond the binary (urban/non-urban) city simulations. Numerically studying the model output, we find that the radial population density gradients follow power-laws where the exponent is related to the preset gravity exponent γ . Similarly, the urban fraction decays exponentially, again determined by γ . The population density gradient can be related to radial fractality a…
Context sensitivity of surface urban heat island at the local and regional scales
On the influence of density and morphology on the Urban Heat Island intensity
The canopy layer urban heat island (UHI) effect, as manifested by elevated near-surface air temperatures in urban areas, exposes urban dwellers to additional heat stress in many cities, specially during heat waves. We simulate the urban climate of various generated cities under the same weather conditions. For mono-centric cities, we propose a linear combination of logarithmic city area and logarithmic gross building volume, which also captures t…
Comparing Generic and Case Study Damage Functions
Two different approaches are used to assess the impacts associated with natural hazards and climate change in cities. A bottom-up approach uses high resolution data on constituent assets within the urban area. In contrast, a top-down approach uses less detailed information but is consequently more readily transferable. Here, we compare damage curves generated by each approach for coastal flooding in London. To compare them, we fit a log-logistic …
Relating SDG11 indicators and urban scaling – An exploratory study
Urban Science
Effects of changing population or density on urban carbon dioxide emissions
The question of whether urbanization contributes to increasing carbon dioxide emissions has been mainly investigated via scaling relationships with population or population density. However, these approaches overlook the correlations between population and area, and ignore possible interactions between these quantities. Here, we propose a generalized framework that simultaneously considers the effects of population and area along with possible in…
Urban emission scaling — Research insights and a way forward
Urban scaling laws
Benchmarking urban eco-efficiency and urbanites' perception
The role of city size and urban form in the surface urban heat island
Urban climate is determined by a variety of factors, whose knowledge can help to attenuate heat stress in the context of ongoing urbanization and climate change. We study the influence of city size and urban form on the Urban Heat Island (UHI) phenomenon in Europe and find a complex interplay between UHI intensity and city size, fractality, and anisometry. Due to correlations among these urban factors, interactions in the multi-linear regression …
A Systematic Study of Sustainable Development Goal (SDG) Interactions
Sustainable development goals (SDGs) have set the 2030 agenda to transform our world by tackling multiple challenges humankind is facing to ensure well‐being, economic prosperity, and environmental protection. In contrast to conventional development agendas focusing on a restricted set of dimensions, the SDGs provide a holistic and multidimensional view on development. Hence, interactions among the SDGs may cause diverging results. To analyze the…
Cities as nuclei of sustainability
We have assembled CO 2 emission figures from collections of urban GHG emission estimates published in peer-reviewed journals or reports from research institutes and non-governmental organizations. Analyzing the scaling with population size, we find that the exponent is development dependent with a transition from super- to sub-linear scaling. From the climate change mitigation point of view, the results suggest that urbanization is desirable in d…
Commentary
Auerbach's legacyIt is evident that throughout the world there are many towns, fewer large cities, and very few metropolises.This observation is not coincidental, but in effect follows a pattern and is often described by a power-law size distribution: that is, the probability of finding a city of size S is proportional to S g -with g being close to 2. Today, this statistical regularity is referred to as Zipf's law for cities, being commonly attri…
The Area and Population of Cities
The distribution of city populations has attracted much attention, in part because it constrains models of local growth. However, there is no consensus on the distribution below the very upper tail, because available data need to rely on “legal” rather than “economic” definitions for medium and small cities. To remedy this difficulty, we construct cities “from the bottom up” by clustering populated areas obtained from high-resolution data. We fin…
Laws of population growth
An important issue in the study of cities is defining a metropolitan area, because different definitions affect conclusions regarding the statistical distribution of urban activity. A commonly employed method of defining a metropolitan area is the Metropolitan Statistical Areas (MSAs), based on rules attempting to capture the notion of city as a functional economic region, and it is performed by using experience. The construction of MSAs is a tim…
Long-term analysis of air temperature trends in Central Asia
Analyse langjahriger Zeitreihen der Lufttemperatur in Zentralasien Verschiedene Phanomene wie die verstarkte Schrumpfung der Gletscher im Tien Schan und Pamir-Alaj-Gebirge deuten darauf hin, dass sich in der jungeren Vergangenheit in Zentralasien eine Klimaerwarmung vollzogen hat. Deshalb wird gefragt, seit wann eine Klimaerwarmung eingetreten ist und mit welcher Intensitat sie sich vollzogen hat. Insbesondere wird der Frage nachgegangen, ob die …
Commentary
Auerbach's legacyIt is evident that throughout the world there are many towns, fewer large cities, and very few metropolises.This observation is not coincidental, but in effect follows a pattern and is often described by a power-law size distribution: that is, the probability of finding a city of size S is proportional to S g -with g being close to 2. Today, this statistical regularity is referred to as Zipf's law for cities, being commonly attri…
Long-term analysis of air temperature trends in Central Asia
Analyse langjahriger Zeitreihen der Lufttemperatur in Zentralasien Verschiedene Phanomene wie die verstarkte Schrumpfung der Gletscher im Tien Schan und Pamir-Alaj-Gebirge deuten darauf hin, dass sich in der jungeren Vergangenheit in Zentralasien eine Klimaerwarmung vollzogen hat. Deshalb wird gefragt, seit wann eine Klimaerwarmung eingetreten ist und mit welcher Intensitat sie sich vollzogen hat. Insbesondere wird der Frage nachgegangen, ob die …
Laws of population growth
An important issue in the study of cities is defining a metropolitan area, because different definitions affect conclusions regarding the statistical distribution of urban activity. A commonly employed method of defining a metropolitan area is the Metropolitan Statistical Areas (MSAs), based on rules attempting to capture the notion of city as a functional economic region, and it is performed by using experience. The construction of MSAs is a tim…
The Area and Population of Cities
The distribution of city populations has attracted much attention, in part because it constrains models of local growth. However, there is no consensus on the distribution below the very upper tail, because available data need to rely on “legal” rather than “economic” definitions for medium and small cities. To remedy this difficulty, we construct cities “from the bottom up” by clustering populated areas obtained from high-resolution data. We fin…
Commentary
Auerbach's legacyIt is evident that throughout the world there are many towns, fewer large cities, and very few metropolises.This observation is not coincidental, but in effect follows a pattern and is often described by a power-law size distribution: that is, the probability of finding a city of size S is proportional to S g -with g being close to 2. Today, this statistical regularity is referred to as Zipf's law for cities, being commonly attri…
The role of city size and urban form in the surface urban heat island
Urban climate is determined by a variety of factors, whose knowledge can help to attenuate heat stress in the context of ongoing urbanization and climate change. We study the influence of city size and urban form on the Urban Heat Island (UHI) phenomenon in Europe and find a complex interplay between UHI intensity and city size, fractality, and anisometry. Due to correlations among these urban factors, interactions in the multi-linear regression …
A Systematic Study of Sustainable Development Goal (SDG) Interactions
Sustainable development goals (SDGs) have set the 2030 agenda to transform our world by tackling multiple challenges humankind is facing to ensure well‐being, economic prosperity, and environmental protection. In contrast to conventional development agendas focusing on a restricted set of dimensions, the SDGs provide a holistic and multidimensional view on development. Hence, interactions among the SDGs may cause diverging results. To analyze the…
Cities as nuclei of sustainability
We have assembled CO 2 emission figures from collections of urban GHG emission estimates published in peer-reviewed journals or reports from research institutes and non-governmental organizations. Analyzing the scaling with population size, we find that the exponent is development dependent with a transition from super- to sub-linear scaling. From the climate change mitigation point of view, the results suggest that urbanization is desirable in d…
Benchmarking urban eco-efficiency and urbanites' perception
Effects of changing population or density on urban carbon dioxide emissions
The question of whether urbanization contributes to increasing carbon dioxide emissions has been mainly investigated via scaling relationships with population or population density. However, these approaches overlook the correlations between population and area, and ignore possible interactions between these quantities. Here, we propose a generalized framework that simultaneously considers the effects of population and area along with possible in…
Urban emission scaling — Research insights and a way forward
Urban scaling laws
On the influence of density and morphology on the Urban Heat Island intensity
The canopy layer urban heat island (UHI) effect, as manifested by elevated near-surface air temperatures in urban areas, exposes urban dwellers to additional heat stress in many cities, specially during heat waves. We simulate the urban climate of various generated cities under the same weather conditions. For mono-centric cities, we propose a linear combination of logarithmic city area and logarithmic gross building volume, which also captures t…
Comparing Generic and Case Study Damage Functions
Two different approaches are used to assess the impacts associated with natural hazards and climate change in cities. A bottom-up approach uses high resolution data on constituent assets within the urban area. In contrast, a top-down approach uses less detailed information but is consequently more readily transferable. Here, we compare damage curves generated by each approach for coastal flooding in London. To compare them, we fit a log-logistic …
Relating SDG11 indicators and urban scaling – An exploratory study
Urban Science
Singularity cities
We propose an upgraded gravitational model which provides population counts beyond the binary (urban/non-urban) city simulations. Numerically studying the model output, we find that the radial population density gradients follow power-laws where the exponent is related to the preset gravity exponent γ . Similarly, the urban fraction decays exponentially, again determined by γ . The population density gradient can be related to radial fractality a…
Context sensitivity of surface urban heat island at the local and regional scales
Quantitative evidence for leapfrogging in urban growth
Urban growth can take different forms, such as infill, expansion and leapfrog development. Here we focus on leapfrogging, which is characterised as new urban development bypassing vacant land. Analysing a sample of 100 global locations, we study the probability that land cover is converted from non-urban to urban as a function of the minimum distance to existing urban cells. The probability decreases with the distance but in many of the considere…
A large share of Berlin’s vegetable consumption can be produced within the city
Commentary
Recent advances in data science and urban environmental health research utilise large-scale databases (100s-1000s of cities) to explore the complex interplay of urban characteristics such as city form and size, climate, mobility, exposure, and environmental health impacts. Cities are still hotspots of air pollution and noise, suffer urban heat island effects and lack of green space, which leads to disease and mortality burdens preventable with be…
How buildings change the fundamental allometry
We demonstrate that the original fundamental allometry alone cannot accurately describe the relationship between urban area and population size. Instead, building height is a third factor that interplays with area and population. To illustrate this, we propose a straightforward model based on the idea that city area is the result of people’s desire to live close to one another while also having sufficient living space . This leads to a more gener…
Commentary
One-dimensional urban scaling
In this paper, we use recent findings from urban scaling theory to evaluate how it could be applied to a one-dimensional archetypal city. Our focus is on how the simplicity of a one-dimensional model can provide intuitive insights that might be obscured in more complex, multidimensional models. With this instructive model, it is possible to visualize that if the population’s accessibility decreases more slowly than the increase in distance, an ag…
Urban green space percolation
Urban green spaces (UGS) are increasingly planned as connected networks, yet many connectivity assessments reduce cost variation to a static threshold and provide limited guidance on where to intervene. We develop a percolation-based framework for translating dynamic UGS connectivity into ecological management priorities. The framework constructs a least-cost, cost-weighted UGS network, activates edges in ascending cost-weighted distance to ident…
Integrating agriculture into European urban landscapes matters
Urban agriculture has emerged as a pathway to enhance food security, improve urban resilience, and reduce the environmental impact of food systems. However, its potential across cities remains underexplored. This study offers a systematic evaluation of the potential for low-tech, open-air, soil-based urban vegetable production in European cities, examining its role in meeting local food demand and contributing to sustainability goals. Leveraging …
Geography (12 obras) · Land Use and Ecosystem Services (11 obras) · Mathematics (11 obras) · Environmental Science (8 obras) · Regional Economics and Spatial Analysis (8 obras) · Population (7 obras) · Computer Science (6 obras) · Economics (6 obras) · Regional science (6 obras) · Scaling (6 obras)