Comparing urban areas: Quantifying urbanisation using a gradient approach

Urbanisation and Urban-Rural Cooperation

Plant Pollinator Networks along a Gradient of Urbanisation

BACKGROUND Habitat loss is one of the principal causes of the current pollinator decline. With agricultural intensification, increasing urbanisation is among the main drivers of habitat loss. Consequently studies focusing on pollinator community structure along urbanisation gradients have increased in recent years. However, few studies have investigated how urbanisation affects plant-pollinator...

Modelling atmospheric dry deposition in urban areas using an urban canopy approach

Atmospheric dry deposition is typically modelled using an average roughness length, which depends on land use. This classical roughness-length approach cannot account for the spatial variability of dry deposition in complex settings such as urban areas. Urban canopy models have been developed to parametrise momentum and heat transfer. We extend this approach here to mass transfer, and a new dry...

Generating True Orthoimages from Urban Areas – a New Approach

Orthoimages are very important geospatial datasets, forming the database for a great variety of applications. So far, orthoimages are generated from aerial photographs by differential rectification to correct the effects of relief displacements. Digital Terrain Models (DTM) describe only the topographic surface but ignore trees, man-made objects, etc. Therefore, the effect of leaning buildings ...

Comparing Urban Spatial Structures: A Model Selection Approach

People gather together to form a society, of which the physical manifestation is a city. Each city’s urban spatial structure can be considered as an underlying context of current apparent physical space. Considerable literature focusing on the spatial structure of cities has been published to date (Kostof 1993) and many researchers have investigated methods for measuring urban spatial structure...