A5011448576- Urban Heat Island Mitigation
- Wind and Air Flow Studies
- Land Use and Ecosystem Services
- Remote Sensing and Land Use
- Atmospheric and Environmental Gas Dynamics
- Meteorological Phenomena and Simulations
- Impact of Light on Environment and Health
- Building Energy and Comfort Optimization
- Plant Water Relations and Carbon Dynamics
- Remote-Sensing Image Classification
- Plant Ecology and Soil Science
- Climate change and permafrost
- Climate variability and models
- Urban Green Space and Health
- Cryospheric studies and observations
- Geographic Information Systems Studies
- Remote Sensing in Agriculture
- Ecology, Conservation, and Geographical Studies
- Air Quality and Health Impacts
- Tree-ring climate responses
- 3D Modeling in Geospatial Applications
- Atmospheric chemistry and aerosols
- Peatlands and Wetlands Ecology
- Botany and Plant Ecology Studies
- Vehicle emissions and performance
University of Basel
2012-2024
Karlsruhe Institute of Technology
2019
University of Bonn
2019
e GEOS (Italy)
2017
Deutsches Zentrum für Luft- und Raumfahrt e. V. (DLR)
2012
Federal Office of Meteorology and Climatology MeteoSwiss
2006-2009
QIMR Berghofer Medical Research Institute
2007
Swiss Tropical and Public Health Institute
2007
University of Freiburg
1985-2005
One important challenge facing the urbanization and global environmental change community is to understand relation between urban form, energy use carbon emissions. Missing from current literature are scientific assessments that evaluate impacts of different spatial units on fluxes; yet, this type analysis needed by planners, who recognize local scale zoning affects consumption climate. Satellite-based estimation fluxes at neighbourhood still a challenge. Here we show potential satellite...
An increasing number of people living in urban environments and the expected increase long lasting heat waves makes study temperature distribution one major tasks climatology, especially considering human health stress. This excess is often underestimated because stations from national meteorological services are limited numbers not representing entire area with typically higher nocturnal temperatures, densely built-up environments. For a majority population, stress consequently monitored...
ABSTRACT Local heterogeneity of CO 2 sources and sinks is a key factor for the variability carbon dioxide flux ( F C ) in urban areas. Information on structure around site, especially related emission characteristics, thus great importance to understanding observed . Strong spatially confined like major roads inhibit direct correlation area‐averaged features may lead heavily biased signal. Four years measured at Basel Aeschenplatz, Switzerland, are analysed with respect controlling factors...
For decades thermal infrared satellite imagery has been used for climate studies of a variety geosystems, including urban areas. Additionally, airborne remotely sensed data can provide high resolution information about land surface temperatures (LST). Numerous make use these the investigation urban-rural LST differences, commonly known as heat island (UHI) phenomenon. Most try to analyse by means distribution. It seems that UHI is easy measure, explain, find, and illustrate. Due this...
Sustainable development is a key component in urban studies. Earth Observation (EO) can play valuable role sustainable and planning, since it represents powerful data source with the potential to provide number of relevant sustainability indicators. To this end, paper we propose conceptual list EO-based indicators capable supporting planning management. Three cities different typologies, namely Basel, Switzerland; Tel Aviv, Israel; Tyumen, Russia were selected as case The are defined...
Global climate change and increasing urbanization worldwide intensify the need for a better understanding of human heat stress dynamics in urban systems. During waves, which are expected to increase number intensity, development cool islands could be lifesaver many elderly vulnerable people. The use remote sensing data offers unique possibility study these with spatially distributed large datasets during all seasons year including day night-time analysis. For city Basel 32 high-quality...
Abstract An intensive observation period was conducted in September 2017 the central Namib, Namibia, as part of project Namib Fog Life Cycle Analysis (NaFoLiCA). The purpose field campaign to investigate spatial and temporal patterns coastal fog that occurs regularly during nighttime morning hours. is often linked advection a marine stratus intercepts with terrain up 100 km inland. Meteorological data, including cloud base height, deposition, liquid water path, vertical profiles wind...
This paper attempts to illustrate the complexity of thermal infrared (TIR) data analysis for urban heat island studies. While a certain shift regarding use correct scientific nomenclature (using term “surface island”) could be observed, literature is full incorrect conclusions and results using erroneous terminology. seems result ease such implicitly suggesting that “warm surfaces” in “high air temperatures”, ultimately drawing planning authorities. It UHI easy measure, explain, find,...
Abstract Four Advanced Spaceborne Thermal Emission and Reflection radiometer (ASTER) satellite scenes of Dubai Abu Dhabi with channels from the visible–near infrared (VNIR) to thermal (TIR) were analysed show variations in surface temperature, albedo, emissivity net radiation different urban rural classes. For a better understanding spatial coherences properties land use classification was derived. The classes then spatially temporally compared. investigations daytime distinct cool island...
An important epidemiologic feature of schistosomiasis is the focal distribution disease. Thus, identification high-risk communities an essential first step for targeting interventions in efficient and cost-effective manner. We used a remotely-sensed digital elevation model (DEM), derived hydrologic features (i.e., stream order, catchment area), fitted Bayesian geostatistical models to assess associations between environmental factors infection with Schistosoma mansoni among more than 4,000...
Abstract Cairo Air Pollution and Climate (CAPAC) is dedicated to the understanding of urban energy balance in Cairo, Egypt, through measurements from space at ground stations. The situ will provide a focussed insight into three carefully chosen microclimates (urban, suburban‐agriculture, suburban‐desert) same time ground‐truth data for satellite image analysis, which expand acquired knowledge spatial domain. In were made during field campaign Greater November 2007 February 2008. this study,...
Worldwide, the number of people living in an urban environment exceeds rural population with increasing tendency. Especially relation to global climate change, cities play a major role considering impacts extreme heat waves on population. For planners, it is important know which types structures are beneficial for comfortable and actions can be taken improve conditions. Therefore, essential differ between not only environments, but also different levels densification. To compare these...
Urban surfaces are a complex mixture of different land covers and surface materials; the relative magnitudes energy balance components therefore vary widely across city. Eddy covariance (EC) measurements provide best estimates turbulent heat fluxes but restricted to source area. Land modeling with earth observation (EO) data is beneficial for extrapolation larger area since citywide information possible. Turbulent sensible latent calculated by combination micrometeorological approaches (the...
Abstract Eddy covariance (EC) measurements of carbon dioxide (CO 2 ) in urban environments are carried out widely since the late nineties. However, long‐term time series still rare and little is known about tendencies, even though cities major sources CO globally. Here a full decade EC from Basel, Switzerland, presented. An approach for calculation horizontal averages It improves significance comparability measured fluxes heterogeneous emphasizes need adequate weighting by averaging such...