UrbanMet Seminar Schedule¶
2022-01-24¶
- Speaker
Yiqing Liu (Built Env, U Reading)
- Time
9:30-10:30, 21st January 2022 (Friday)
- Location
More about the talk¶
- Title
Revisiting the definition of anthropogenic heat flux from building: the role of human activities and building heat storage flux
- Abstract
Buildings are a major source of anthropogenic heat emissions, impacting energy use and human health in cities. The difference between building energy consumption and building anthropogenic heat emission magnitudes and time lag and are poorly quantified. Energy consumption (QEC) is a widely used proxy for the anthropogenic heat flux from buildings (QF,B). Here we revisit the latter’s definition. If QF,B is the heat emission to the outdoor environment from human activities within buildings, we can derive it from the changes in energy balance fluxes between occupied and unoccupied buildings. Our derivation shows the difference between QEC and QF,B is attributable to a change in the storage heat flux induced by human activities (∆So-uo) (i.e., QF,B = QEC − ∆So-uo). Using building energy simulations (EnergyPlus) we calculate the energy balance fluxes for a simplified isolated building (obtaining QF,B, QEC, ∆So-uo) with different occupancy states. The non-negligible differences in diurnal patterns between QF,B and QEC caused by thermal storage (e.g. hourly QF,B to QEC ratios vary between −2.72 and 5.13 within a year in Beijing, China). Negative QF,B can occur as human activities can reduce heat emission from building but are associated with a large storage heat flux. Building operations (e.g., open windows, use of HVAC system) modify the QF,B by affecting not only QEC but also the ∆So-uo diurnal profile. Air temperature and solar radiation are critical meteorological factors explaining day-to-day variability of QF,B. Our new approach could be used to provide data for future parameterisations of both anthropogenic heat flux and storage heat fluxes from buildings. It is evident that storage heat fluxes in cities may also be impacted by occupant behaviour.
- Related paper
More about the speaker¶
- ResearchGate
2022-02-04¶
- Speaker
Xiaoxiong Xie (Built Env, U Reading)
- Time
9:30-10:30, 4th January 2022 (Friday)
- Location
More about the talk¶
- Title
Impact of inter-building longwave radiative exchanges on building energy performance and indoor overheating
- Abstract
Despite inter-building longwave radiative exchanges playing an important role in determining building energy and environmental performance, simulation tools (e.g. EnergyPlus) simplify this by assuming the surface temperature of surrounding buildings to be equal to the air temperature used to force the model, and therefore cause bias. Here we propose a ‘spin-up’ approach to update building external surface temperature using either air or the isolated building temperatures. Neighbourhoods with different plan area fraction of buildings (\(λ_P\)) are analysed to assess the impact on building external surface temperatures, cooling and heating energy demand as well as indoor overheating degree hours. In this talk, I will present such impacts benefit from the updated approach.
- Related paper
More about the speaker¶
- ResearchGate
2022-02-25¶
- Speaker
Dr Jie Deng (U Reading)
- Time
9:30-10:30, 25th February 2022 (Friday)
- Location
More about the talk¶
- Title
Urban tree radiative performance and anthropogenic heat flux from buildings in the context of urban heat mitigation
- Abstract
The presentation includes two parts of work. In part one, main findings in the EPSRC and NERC funded project ‘InfruTreeCity’ will be reported. The project aims to characterise infrared radiative performance of urban trees in the context of urban heat mitigation. As it is well-known, urban trees play an important role in mitigating urban heat stress and regulating urban microclimate thermal environment. However, tree radiative performance was oversimplified in conventional urban microclimate modelling and in the development of urban tree planting strategies. Understanding the ways in which tree species interact with solar radiation has previously focused on transmission and reflection of sunlight, typically by examining individual leaves. Here we will demonstrate how tree radiative performance at the crown level differs from leaf reflectance at the leaf level. We will reveal spatial distribution and temporal variation rules of urban tree radiative performance in terms of tree crown transflectance (comprehensive effect of reflection and transmission from tree crowns) by in-situ spectroscopy. Interspecific difference in tree radiative performance is identified as well. Tree crown surface albedo at typical solar altitudes across multiple tree species has been determined. The findings provide insights for into tree radiative shading effects resulting from temporal variation in tree crown surface albedo, with consequences for urban microclimate modelling and the development of urban heat mitigation strategies.
In part two, a preliminary study on anthropogenic heat flux from ASHERAE archetype buildings (small office, restaurant) will be present in the urban context. Typical data profiles between anthropogenic heat flux from buildings and total building heat emissions will be distinguished.
- Related papers
2022-03-11¶
- Speaker
Dr Julia Fuchs (Karlsruhe Institute of Technology)
- Time
9:30-10:30, 11th March 2022 (Friday)
- Location
`Teams (online)
More about the talk¶
- Title
Satellite-based analyses of aerosol-cloud-land surface interactions
- Abstract
As the role of clouds in the climate system is among the largest remaining uncertainties in climate science, a more complete understanding of cloud systems is required. The seminar gives an overview over past, ongoing and planned research that aims at a better understanding of the spatiotemporal patterns, drivers, and feedbacks of clouds. In the first study the effect of geophysical parameters on stratocumulus clouds in the Southeast Atlantic is shown based on machine learning, using a combination of satellite and reanalysis data as well as trajectory modelling of air-mass origins. The second study aims at improving an empirical satellite-based cloud masking approach for high-resolution analyses of land surface effects on boundary layer clouds. The observation of boundary layer clouds with high-resolution satellite data provides comprehensive insights into spatial patterns of land surface-driven modification of cloud occurrence, such as the occurrence of fog holes attributed to the impact of the urban heat island over Paris. Within the planned project the identification of spatiotemporal patterns of boundary-layer cloud modifications over European urban areas will provide insights into the factors controlling the magnitude of the urban cloud modification.
- Related papers
2022-03-18¶
- Speaker
Prof Leena Jarvi (University of Helsinki)
- Time
9:30-10:30, 18th March 2022 (Friday)
- Location
`Teams (online)
More about the talk¶
- Title
Meteorological observations and modelling supporting carbon neutrality aims of cities
- Abstract
Urban areas are major emitters of greenhouse gases with the most important being carbon dioxide (CO2). In the fight against the climate change, several cities seek methods in reducing their emissions, and maximizing sinks and storages to urban green areas. In order for cities to make most efficient decisions to reach carbon-neutrality or even carbon-negativity, science-based knowledge and solutions are needed. Micrometeorological observations can provide detailed information about the temporal and spatial variability of urban emissions and sinks needed for better understanding of urban emission dynamics and thus aid cities in their decision making. In this study, the power of the micrometeorological eddy covariance (EC) technique in identifying anthropogenic activities and emissions, and biogenic sinks will be demonstrated based on observations from three sites in Helsinki. Understanding of the biogenic carbon cycling will be supported by ecophysiological measurements from different urban vegetation types. In addition, urban land surface modelling will be used to upscale our understanding from the in-situ observations to neighborhood and city-scale, and to provide practical information for decision-makers on how to reduce carbon emissions and maximize carbon sinks in cities.
2022-05-20¶
- Speaker
Dr. Utkarsh Bhautmage
- Time
9:30-10:30, 20th May 2022 (Friday)
- Location
`Teams (online)
More about the talk¶
- Title
Incorporation of the Urban Thermal and Moisture Components into the PX-Land Surface Model (LSM) within the Mesoscale Weather Research and Forecasting (WRF) Model
- Abstract
In the mesoscale Weather Research and Forecasting (WRF) model, few urban modeling options exist such as Urban Canopy Model (UCM), Building Effect Parameterization (BEP), and Building Energy Model (BEM). These models have certain limitations as far as the choice of land surface models (LSM), planetary boundary layer (PBL) schemes, and computational expenses are concerned. The authors Dy et al., (2019) made an attempt to include the urban momentum drag effect for wind speed modeling by developing a new multilayer model with modifications to the non-local Asymmetric Convective Model version 2 (ACM2) PBL scheme. The urban-based ACM2 (UACM) model has shown a significant improvement in wind speed reduction near to the urban ground surface along-with an inflection point in the vertical wind profile at roof level. In this study, urban thermal and moisture components are newly introduced in the PX-LSM combined with the UACM model. The urban street-level surface composition includes the impervious, vegetated, and bare ground fractions. The diurnal variation in street, walls and roof-surface temperatures is modelled using the two-layer force-restore algorithm. Simple radiation treatment is considered to account shadowing within the streets based on solar zenith angle and building morphology. Heat and moisture flux evolution is considered explicitly on all urban surfaces. The advantages of this novel UACM are simple formulation, more efficient execution, and its requirement for only a few fundamental urban morphological parameters. The upgraded model is tested with the both idealized and real case WRF simulations over the Pearl River Delta (PRD) region in Southern China. The evaluation demonstrated greatly improved wind and temperature predictions at the urban measurement sites compared to the base ACM2 model.
2022-10-07¶
- Speaker
Dr Helen Ward (University of Innsbruck)
- Time
11:00-12:00, 7th October 2022 (Friday)
- Location
Room 1L43, Meteorolgy Building, or `Teams (online) <>`_
More about the talk¶
- Title
Investigating urban climate and mountain weather in the Alpine city of Innsbruck
- Abstract
The number of micrometeorological studies in urban areas has grown considerably in recent decades, motivated by the need to better understand the impact of the environment on our everyday lives and vice versa. Measurements of turbulence, the surface energy balance and pollutant exchange have been made across a range of locations and for different neighbourhood types (e.g. residential areas, city centres, industrial zones, urban parks). However, very few studies have investigated surface exchange in urban areas in hilly or mountainous regions.
This study examines, for the first time, the combined effects of the urban surface, orographic setting and mountain weather on energy and mass exchange. Analysis of multi-year observations collected over the Alpine city of Innsbruck reveals several similarities with other city-centre sites (in mostly flat terrain) as well as some important differences. As for previous city-centre studies, the available energy in Innsbruck is partitioned mainly into sensible heat and heat stored in the urban fabric, while the latent heat flux is limited by the amount of vegetation and water available. Observed CO2 fluxes are attributed mainly to emissions from building heating in winter and traffic in summer. Annual total CO2 fluxes correspond well to emission estimates compiled from statistical inventory data for the study area and are similar to findings at other sites with a similar proportion of vegetation. However, interpretation of the observed data is complicated by Innsbruck’s location in a steep-sided valley which leads to characteristic daily and seasonal flow patterns. Under weak synoptic forcing, a typical valley-wind circulation is observed with moderate up-valley winds during summer daytime and weaker down-valley winds at night and in winter. Downslope windstorms (foehn) can dramatically affect temperature, wind speed, turbulence and air quality: increased wind speeds and turbulent mixing help to ventilate the city, while advection of warm, dry foehn air can lead to negative sensible heat fluxes both inside and outside the city (quite different to what is usually observed in city centres). The terrain also has an impact on radiative exchange, for example incoming shortwave radiation is blocked by the valley sides at low solar elevation angles. These examples highlight how the surrounding landscape impacts conditions in Innsbruck in multiple ways.
The local- and mesoscale circulations that occur in mountainous regions also occur to some extent over less complex terrain (e.g. over hills or river valleys), as well as at considerable distances from the mountains. Similar types of circulations can also result from other kinds of topographical complexity, such as surface cover differences (e.g. cities along coastlines). Therefore, these results are widely relevant. Knowledge of how cities in complex landscapes are similar to and different from cities in ideal terrain is key to understanding interactions between the urban environment and the surroundings, and therefore for avoiding inadvertent harmful effects that can result from attempts to mitigate climate issues.
2022-11-18¶
- Speaker
Meg Stretton (University of Reading)
- Time
11:00-12:00, 18th November 2022 (Friday)
- Location
Room 1L43, Meteorolgy Building, or Teams (online)
More about the talk¶
- Title
Evaluating the multi-layer SPARTACUS approach to modelling radiation in urban areas
- Abstract
High population densities in cities lead to large numbers of people being exposed to extreme weather events, such as heatwaves, which are predicted to increase in both frequency and intensity. As urban populations rise, such events pose an increasing threat to both public health and infrastructure. Therefore, there is an increasing need for higher accuracy and spatial resolution in urban weather forecasting, which will enable better prediction and mitigation of these extreme events.
The complex urban structure impacts the interaction of cities with both shortwave and longwave radiation, trapping heat and influencing the surface energy balance. Therefore, both the 3D structure and radiation fluxes need to be modelled correctly. However, high computational costs constrain the representation of urban areas in numerical weather prediction (NWP) to models that are often single-layer, commonly representing the urban structure using an infinitely long street with buildings of equal height.
This work examines whether multi-layer approaches to urban radiation modelling can bridge the gap between commonly used single-layer approaches, and explicit radiative transfer models that are too complex for use in NWP. Here, the multi-layer SPARTACUS-Urban model’s shortwave and longwave capabilities are evaluated against the explicit DART (Discrete Anisotropic Radiative Transfer) model, for real-world scenes in central London and Indianapolis. Further, the SPARTACUS-Urban approach is coupled with the SUEWS (Surface Urban Energy and Water balance Scheme) model. This new coupling approach is examined against the existing radiation scheme within SUEWS, and surface temperature observations in central London.
Another limitation of the representation of urban areas within NWP is the lack of global data on the vertical structure of cities. Particularly, any vertically distributed modelling approaches require vertical profiles of urban geometry to use as inputs, which are unavailable globally. This talk also describes innovative parameterisations for both building cover and wall area, both used within SPARTACUS-Urban, and the impact of these parameterisations on the simulated bulk albedo and within-canopy shortwave absorptions.
2021-11-29¶
- Speaker
Dr Robert Schoetter (Meteo France)
- Time
09:30 - 10:30, 29th November 2021 (Monday)
- Location
1L43, Met
More about the talk¶
- Title
Recent improvements of the urban climate model TEB and development of reference models for its evaluation
- Abstract
The urban climate model Town Energy Balance (TEB) has been developed since more than 20 years for the quantification of urban climate and the effect of climate change mitigation and adaptation measures at the mesoscale. It strongly simplifies the urban geometry but includes many physical processes like urban vegetation, hydrology, snow, and a building energy model. TEB has initially been developed as a single-layer urban canopy model, which means that it directly interacts with only the first level of the atmospheric model. The talk will focus on two recent developments of TEB to prepare for an application to a larger variety of urban morphologies and the hectometric resolution. The multi-layer coupling has been introduced to allow TEB to deal with high-rise buildings and a strong spatial heterogeneity of urban morphology. The coupling between TEB and the canopy radiation scheme SPARTACUS-Surface allows to replace the street-canyon geometry by a more robust geometrical assumption. Reference models able to explicitly resolve the urban geometry and to better capture the physical processes are developed to evaluate the mesoscale urban climate model. For turbulent processes, this is the obstacle-resolving version of the Meso-NH model, and for radiation a newly developed Monte-Carlo based model. Initial results from these models will be presented.
More about the speaker¶
- Bio
Robert Schoetter did his PhD at the Meteorological Institute of the University of Hamburg to investigate to which degree local urban adaptation measures are able to compensate for regional climate change. After the PhD he moved to CNRM, the research laboratory of the French meteorological service Météo-France. He first worked as a PostDoc in the MAPUCE project, during which the urban climate of about 40 French cities has been quantified with a mesoscale modelling approach. To achieve this goal, he integrated data on urban morphology, building construction materials, and human behaviour derived by project partners into a modelling framework based on the mesoscale atmospheric model Meso-NH and the urban climate model TEB. He also improved TEB to take into account a variety of human behaviour at grid-point-scale. Since 2018, he is a researcher in charge of improving TEB for future hectometric applications, e.g. by coupling it at multiple levels with the atmospheric model or improving the treatment of radiative transfer. Furthermore, he also coordinates the development of obstacle-resolving reference models to evaluate the mesoscale models.
- ResearchGate
2021-11-15¶
- Speaker
Dr Lewis Blunn (Met, U Reading)
- Time
9:30-10:30, 15th November 2021 (Monday)
- Location
More about the talk¶
- Title
A Model for Mean Winds in Vertically Heterogeneous Urban Canopies
- Abstract
Accurate representation of the exchange of momentum and scalars (e.g. temperature) between the surface and overlying atmosphere is crucial when modelling the urban environment. The urban surface influences the flow of air through several processes such as drag. Hence, in the roughness sublayer where air is directly affected by the surface, a constant-flux layer cannot be assumed and Monin-Obukhov similarity theory breaks down. It is becoming common in mesoscale meteorology models to represent the flow and scalar exchange using height-distributed drag models that predict the time- and horizontally space-averaged (double-averaged) flow and scalar exchange within the roughness sublayer. However, these models often make assumptions that are only valid in a vegetation canopy setting and typically treat the urban canopy as uniform height. I will present a model for the double-averaged flow in the roughness sublayer that has novel parametrisations of turbulence and drag, and is valid for vertically-heterogeneous urban canopies. The model is evaluated across various urban canopy geometries using large-eddy simulation data.
More about the speaker¶
- ResearchGate
2020¶
Date |
Room |
Time |
Speaker |
Title |
Abstract |
|---|---|---|---|---|---|
5-Mar-2020 |
1L43 |
16:00 |
Fan Liu (Visiting researcher at SBE) |
Effect of indoor atmospheric stratification on human respiratory droplets dispersion |
|
27-Feb-2020 |
1L43 |
14:00 |
Aristofanis Tsiringakis (Wageningen University) |
Sources of model uncertainty: from off-line to coupled urban canopy models |
|
9-Jan-2020 |
1L43 |
16:00 |
Lewis Blunn |
|
2019¶
Date |
Room |
Time |
Speaker |
Title |
Abstract |
|---|---|---|---|---|---|
20-Nov-2019 |
HP175 |
11:00 |
Gabriele Manoli (UCL) |
Urban ecohydrology: from forests to cities, from plant cells to the global scale |
|
7-Nov-2019 |
HP175 |
11:00 |
Birgit Sutzl |
Distributed urban drag parameterisation in the London Model |
|
12-Sep-2019 |
1L61 |
11:00 |
Antti Manninen |
TBC Doppler lidar boundary layer observations |
|
15-Aug-2019 |
1L61 |
11:00 |
H Gough |
CAKE |
|
4-Jul-2019 |
1L61 (HP175 as backup) |
11:00 |
Huw Woodward (Imperial) |
TBC (MAGIC and fluidity modelling) |
Addition: Will viva practice, the last 15 min. |
6-Jun-2019 |
1L61 |
11:00 |
Qun Wang (HKU) |
Urban heat island circulations as affected by background wind |
|
23-May-2019 |
1L61 |
11:00 |
Christos Halios |
A method for monitoring the thermal performance of trees in urban Local Microenvironments: results from the first experimental campaign of the InfruTreeCity project |
Ιn urban areas exchanges of energy, mass, and momentum that determine local microclimates are highly complicated due to urban heterogeneity, involving a variety of natural and anthropogenic factors and spanning a wide range of atmospheric scales. Urban trees is one of the key factors; yet, systematic research is sparse, especially at the micro-γ scale (~10 m) and a clear framework for enquiry is lacking. Here we discuss a methodology for assessing reflectance and microclimatic characteristics above and below the tree canopy in the urban areas. |
9-May-2019 |
HP175 |
11:00 |
Hamid Omidvar |
Heat, Air, and Water: How Cities Create Their Own Hydrodynamics |
|
25-Apr-2019 |
1L61 |
11:00 |
Dou Junxia |
Surface energy balance fluxes in a suburb of Beijing, China |
|
1-Apr-2019 |
1L61 |
14:00 |
Jay-Young Byon from KMA (Korea) |
An introduction to the urban meteorological observation network in Seoul Metropolitan Area |
Korea Meteorological Administration(KMA) launched a WISE(Weather Information Service Engine) project in 2012 in order to improve urban weather forecast. The WISE project is conducted about six years from year 2012 to 2017 for the research of urban weather forecasting, flash flood, road meteorology, etc. Urban meteorological observation system network(UMS-Seoul) is established in Seoul Metropolitan Area(SMA) of the South Korea capital city by the WISE project since year 2013. The network is composed of a surface energy balance observation network, a 3-D meteorological observation network such as wind lidar, microwave radiometer, aerosol lidar, ceilometer, and many sensor to measure surface temperature, wind speed and direction, humidity. The UMS-Seoul data are analyzed for the study of sea-land breeze over SMA. The data are collected in real-time at KMA and will be released to the public. It may be used for urban environment forecast, production of urban reanalysis data and renewable energy map. My talk will be general introduction to observation instruments and future plan to the application of the data at KMA. |
28-Mar-2019 |
1L61 |
11:00 |
William Lin (University of Surrey) |
Wind tunnel simulation of London South Bank |
|
28-Feb-2019 |
1L61 |
11:00 |
Mat Lipson |
Urban model development: an Australian perspective |
In this talk, I’ll discuss my PhD work on the urban canopy model ATEB to improve its heat storage parameterisation, and on developing and integrating an internal building energy model to improve dynamic heating/cooling energy demand predictions. I’ll highlight some novel aspects of the new integrated model UCLEM, and show how it responds when coupled to a GCM for climate-timescale simulations over Melbourne, Australia. |
14-Feb-2019 |
1L61 |
11:00 |
Hannah Gough |
Love your LiDAR: overview of observations from London Southbank University site (half slot) |
|
24-Jan-2019 |
1L43, 4pm |
Dr. Keigo Matsuda |
Building- and tree-crown-resolving large-eddy simulation for analyzing urban heat environments |
Urban high temperatures due to the combined influence of global warming and urban heat islands increase the risk of heat stroke. Greenery is one of the possible countermeasures for mitigating the heat environments since the transpiration and shading effect of trees can reduce the air temperature and the radiative heat flux. In order to formulate effective measures, it is important to estimate the influence of the greenery on the heat stroke risk. In this study, we have developed a tree-crown-resolving large-eddy simulation (LES) model that is coupled with three-dimensional radiative transfer (3DRT) model. The multiscale atmosphere-ocean coupled model, MSSG (Multi-Scale Simulator for the Geoenvironment), which is developed in JAMSTEC, is used for performing the LES. The MSSG is possible to perform multiscale simulations from the global and mesoscales to the urban scale, resolving the topography, building shapes, and tree crowns of several meters. The 3DRT model is implemented in the MSSG so that the 3DRT is calculated repeatedly during the time integration of the LES. We have confirmed that the computational time for the 3DRT model is negligibly small compared with that for the LES and the accuracy of the 3DRT model is sufficiently high to evaluate the radiative heat flux at the pedestrian level. The present model is applied to the analysis of the heat environment in an actual urban area around the Tokyo Bay area, covering 8 km × 8 km with 5-m grid mesh, in order to confirm its feasibility. The results show that the wet-bulb globe temperature (WBGT), which is an indicator of the heat stroke risk, is predicted in sufficiently high accuracy to evaluate the influence of tree crowns on the heat environment. In addition, by comparing with a case without the greenery in the Tokyo Bay area, we have confirmed that the greenery increases the low WBGT areas in major pedestrian spaces by a factor of 3.4. The model is further applied to the heat environment analysis in the Kumagaya Sports & Culture Park, where field observation was carried out in 2016. For the simulation, the multiscale downscaling technique is used to obtain reliable results. The finest domain covers 3 km × 3 km with 2-m grid mesh. The comparison with the field observation data confirms that the present model can predict the local difference of the wind speed, air temperature, and WBGT. These results indicate that the present model can predict the greenery effect on the urban heat environment quantitatively. |
|
17-Jan-2019 |
1L43, 4pm |
Dr Yuya Takane (UoR, AIST) |
Urban warming and future air-conditioning use in an Asian megacity |
||
10-Jan-2019 |
1L61, 3pm |
Robin Hogan (ECMWF) |
How can we represent the 3D interaction of radiation with complex urban canopies in weather and climate models? |
2018¶
Date |
Room |
Time |
Speaker |
Title |
Abstract |
|---|---|---|---|---|---|
10-Dec-2018 |
1L61, 4pm |
Andres Simon (National University of Singapore) |
Implementation of MORUSES in uSINGV: Preliminary results from Singapore |
||
3-Dec-2018 |
1L43, 4pm |
Luyang Shi (SBE) |
Impact of urban heat/moisture island on the building sensible/latent cooling load in Hong Kong |
||
26-Nov-2018 |
1L43, 4pm |
Matthew, Will, George, Meg, Elliott, Izzy |
Book reading: Urban Climates (Oke et al., 2017), Ch 14.5, 14.6, 14.7, 15.1, 15.2, 15.3 |
||
12-Nov-2018 |
1L43, 4pm |
Shuojun Mei (SBE) |
Street canyon ventilation and pollution dispersion: 2-D versus 3-D CFD simulations |
||
1-Nov-2018 |
ESSC 175, 11am |
Prof Zhiqiu Gao (NUIST) |
Seasonal and Diurnal Variations in Moisture, Heat and CO2 Fluxes over Different surfaces in China |
||
22-Oct-2018 |
1L43, 4pm |
Chiel van Heerwaarden (Wageningen) |
MicroHH tutorial |
||
8-Oct-2018 |
1L43, 4pm |
Meg, Elliott, Natalie |
Book reading: Urban Climates (Oke et al., 2017), Ch 14.2, 14.3, 14.4 |
||
24-Sep-2018 |
1L61, 4pm |
Jess Brown |
Roughness-sublayer effects on the vertical exchange of ozone precursors within and above an irrigated Californian orchard canopy |
||
11-Sep-2018 |
1L61, 4pm |
Elliot, Jess, Yuya, Will |
Book reading: Urban Climates (Oke et al., 2017), Ch 13.2, 13.3, 14.1, 12.2 |
||
3-Sep-2018 |
1L43, 4pm |
Dr Shuangping Duan |
Natural ventilation potential using a coupled building-urban thermal physical model under urban densification |
||
14-Aug-2018 |
1L61, 4pm |
Will, Ronan, David |
Book reading: Urban Climates (Oke et al., 2017), Ch 12.2, 12.3, 13.1 |
||
31-Jul-2018 |
1L61, 4pm |
Natalie, Ronan, David, Izzy, Beth |
Book reading: Urban Climates (Oke et al., 2017), Ch 10.4, 11.1, 11.3, 11.4 |
||
24-Jul-2018 |
1L61, 4pm |
Elsa Aristodemou |
CANCELLED: Effect of Tall buildings on turbulent flows using adaptive LES within the FLUIDITY code |
||
17-Jul-2018 |
1L61, 4pm |
Denise |
Book reading: Urban Climates (Oke et al., 2017), Ch 10.4, 11.2 |
||
10-Jul-2018 |
1L61, 4pm |
David Pelot, Ronan, Elliott |
Book reading: Urban Climates (Oke et al., 2017), Ch 10.1, 10.2, 10.3 |
||
3-Jul-2018 |
1L43, 4pm |
Yuya, Denise, Ting |
Book reading: Urban Climates (Oke et al., 2017), Ch 9.1, 9.2, 9.3 |
||
19-Jun-2018 |
GU10, 4pm |
MSc students |
Rehearsal for presenstations: Zhengda Wang: Effects of cities on boundary layer processes and their representations in models Tin-Yuet Chung (Ken): Estimating wind speed at street level Yihao Tang: Urbanisation of weather data Lilian Fong: Urban climate modeling using UMEP for idealised urban conceptual design models Daniel Galea: Investigating urban canopy parametrizations for high-resolution NWP |
||
22-May-2018 |
1L43, 4pm |
Will,Ting and Jess |
Book reading: Urban Climates (Oke et al., 2017), Ch 8.1, 8.2, 8.3 |
||
15-May-2018 |
1L43, 4pm |
Elliott |
Improving estimates of forward-modelled attenuated backscatter, using observed aerosol characteristics, in clear-sky conditions |
||
8-May-2018 |
1L61, 4pm |
Izzy, Natalie, Marine |
Boo reading: Urban Climates (Oke et al., 2017), Ch 6.5, 7.1, 7.2 |
||
1-May-2018 |
1L43, 4pm |
Natalie |
Parameterising horizontally averaged wind and temperature profiles in the urban RSL |
||
24-Apr-2018 |
GU10, 4pm |
Janet |
overview of MAGIC project |
||
18-Apr-2018 |
1L61, 4pm |
Dr Jae-Young Byon (the National Institute of Meteorological Research, South Korea) |
Comparison of the urban heat island intensity prediction in Seoul between Best scheme and MORUSES from KMA LDAPS |
||
27-Mar-2018 |
1L61, 4pm |
Denise, Ting, Will |
Book reading: Urban Climates (Oke et al., 2017), Ch 6.5, 7.1, 7.2 |
||
20-Mar-2018 |
1L61, 4pm |
Izzy, Ting, Beth |
Book reading: Urban Climates (Oke et al., 2017), Ch 6.2, 6.3, 6.4 |
||
13-Mar-2018 |
1L61, 4pm |
Elliott, Beth, Marine |
book reading: Urban Climates (Oke et al., 2017), Ch 5.3, 5.4, 6.1 |
||
6-Mar-2018 |
1L61, 4pm |
Natalie, Izzy, Will |
book reading: Urban Climates (Oke et al., 2017), Ch 4.4, 5.1, 5.2 |
||
20-Feb-2018 |
1L61, 4pm |
Lewis Bluun, Izzy Capel-timms |
QV rehearsal |
||
23-Jan-2018 |
1L61, 4pm |
Dr Kai Wang (UCL) |
Changes in the daily cycle of urban air temperature |
||
9-Jan-2018 |
1L61, 4pm |
Round table |
Round table: update of progress; communicate highlights; outlook for next 6 months; populate urban seminar table |
2017¶
Date |
Room |
Time |
Speaker |
Title |
Abstract |
|---|---|---|---|---|---|
5-Dec-2017 |
1L61, 4pm |
Will, Izzy and Beth |
Practice talks, 12 mins each: Beth - ‘Evaluation of the Urban Parts of JULES in London’ Will - ‘Longwave radiation fluxes prescribed from ground-based thermography observations for modelling urban thermal anisotropy ‘ Izzy - TBC |
||
23-Nov-2017 |
1L36, 3pm |
Sytse Koopmans (Wageningen University, The Netherlands) |
Using data assimilation in WRF to model the urban climate of Amsterdam |
||
21-Nov-2017 |
HP175, 4pm |
Chao Ren (The Chinese University of Hong Kong) |
Urban Climatic Application in Asian Cities |
||
31-Oct-2017 |
1L61 |
Simone Kotthaus |
Characterising the urban boundary layer based on ceilometer observations: examples from London and Beijing |
||
29-Jun-2017 |
1L43 |
Alan Grant |
The depth of the boundary layer in a boundary layer scheme. |
||
15-Jun-2017 |
1L43 |
Round Table |
|||
1-Jun-2017 |
1L43 |
Christos Halios |
How do indoor flows depend on the wind direction of the approaching flow under cross-ventilation? |
||
4-May-2017 |
1L43 |
Hannah Gough |
Effects of meteorological conditions on building natural ventilation in idealised urban settings - Viva defence practise’ |
||
20-Apr-2017 |
1L43 |
Ben Crawford |
|
||
9-Mar-2017 |
1L43 |
Professor, Yukihiro Kikegawa, Meisei University |
Quantification and intercomparison of the positive feedback interactions between urban climate and air-conditioning energy demand in international megacities |
||
6-Mar-2017 |
GU01 |
Dr. Hideki Yaginuma |
Route choice behavior under the heavy rain disaster in Japan. |
||
23-Feb-2017 |
1L43 |
Vincent Luo |
Haze in China: what building and urban designers could do? |
||
9-Feb-2017 |
1L43 |
Natalie Theeuwes |
“The urban heat and cool island” |
||
26-Jan-2017 |
1L43 |
Christoph Kent, William Morrison, Elliott Warren |
Quo Vadis practice talks |
||
19-Jan-2017 |
1L43 |
Round table |
Round table: update of progress; outlook for next 6 months; populate urban seminar table |
2016¶
Date |
Room |
Time |
Speaker |
Title |
Abstract |
|---|---|---|---|---|---|
8-Dec-2016 |
1L43 |
Elliott Warren / William Morrison |
Evaluation of forward modelled backscatter with a ceilometer network - a sea breeze case study in London / Classifying ground based surface temperature observations with 3D modelling and ray tracing |
||
24-Nov-2016 |
1L43 |
Junxia Dou |
Summer surface energy balance flux observations in Beijing and vicinity |
||
10-Nov-2016 |
1L43 |
Makoto Nakayoshi |
Wearable instrument for human thermal stress assessment (tentative title) |
||
27-Oct-2016 |
GU10 |
Hannah Gough |
Departmental seminar practice- The tale of the Straw city |
||
13-Oct-2016 |
GU10 |
All |
Round table introduction |
||
15-Sep-2016 |
1L36 |
Rearranged to 12th september due to visiting seminar |
|||
12-Sep-2016 |
1L61, 3pm |
Prof. Tetsuro Tamura |
Tokyo Institute of Technology urban environmental fluid mechanics and micro-meteorology - Research update |
||
1-Sep-2016 |
GU10 |
Christoph Kent, Hannah Gough |
Wind engineering society conference practice talks (15 mins each) |
||
18-Aug-2016 |
1L61 |
Duick Young |
Integrated vegetation in an Urban Land Surface Model: SCRUM-TUrban Update |
||
21-Jul-2016 |
1L61 |
Eliott Warren |
The Birmingham Urban Climate Laboratory (BUCL) - A High Density Urban Meteorological Network |
||
9-Jun-2016 |
1L61 |
Denise Hertwig |
Street network dispersion modelling: Updates from the DIPLOS project |
||
6-Jun-2016 |
1L61 |
Alex Bjorkegren |
“The emission, storage and dispersion of CO2 within and above the urban canopy layer in central London” |
||
2-Jun-2016 |
1L61 |
David Gatey |
“Model development at Risk Management Solutions RMS” |
||
26-May-2016 |
1L61 |
Sato; Cathy Wing Yi Li |
“Relation between urban flow structure and pressure coefficient in field experiment”; “The interaction between chemistry and turbulence, and its application to high-resolution modelling on urban environment” |
||
28-Apr-2016 |
GU10 |
Sylvia Bohnenstengel |
CSSP-China urban work |
||
31-Mar-2016 |
GU10 |
Christoph Kent |
Interactive look at online databases (OS Building Heights, EA LiDAR, WUDAPT) |
||
3-Mar-2016 |
GU10 |
All |
Round Table discussion |
||
18-Feb-2016 |
1L61 |
Ben Crawford |
Surface-atmosphere interactions in urban environments |
||
21-Jan-2016 |
GU10 |
Hannah Gough |
Tiny Town: Wind tunnel work of the Silsoe array |
2015¶
Date |
Room |
Time |
Speaker |
Title |
Abstract |
|---|---|---|---|---|---|
16-Dec-2015 |
GU10 |
Andy Gabey |
Refining rainfall characteristics based on observations from an urban ceilometer network |
||
9-Dec-2015 |
1L61 |
cancelled |
|||
2-Dec-2015 |
1L61 |
Will Morisson |
Variability of urban surface temperatures at high temporal resolutions |
||
2-Dec-2015 |
Duick Young |
Radiation balance in a vegetated urban street canyon |
|||
25-Nov-2015 |
1L61 |
cancelled |
|||
18-Nov-2015 |
1L61 |
cancelled |
|||
11-Nov-2015 |
1L61 |
cancelled |
|||
4-Nov-2015 |
GU10 |
cancelled |
|||
28-Oct-2015 |
1L61 |
Ben Crawford |
CO2 fluxes in Vancouver |
||
21-Oct-2015 |
1L61 |
cancelled |
|||
14-Oct-2015 |
1L61 |
Keith Shine |
Impact discussion |
||
8-Oct-2015 |
1L61 |
Atsushi Inagaki |
|||
1-Oct-2015 |
1L61 |
Christoph Kent |
Towards the improved representation of surface roughness |
||
24-Sep-2015 |
1L61 |
poster-day - no seminar |
|||
17-Sep-2015 |
1L61 |
cancelled |
|||
10-Sep-2015 |
1L61 |
Sylvia Bohnenstengel |
|||
30-Jul-2015 |
1L61 |
ICUC9 review |
|||
23-Jul-2015 |
1L61 |
no seminar |
|||
16-Jul-2015 |
1L61 |
Helen Ward |
Using observations to improve modelled energy, water and carbon exchanges for urban areas |
||
16-Jul-2015 |
Simone Kotthaus |
Mixing layer height observations from a ceilometer network in London |
|||
9-Jul-2015 |
1L61 |
cancelled |
|||
2-Jul-2015 |
GU10 |
Janet Barlow |
Climate change policy and the built environment |
||
25-Jun-2015 |
GU10 |
Alex Bjorkegren |
Calculation of the CO2 storage term in an urban environment: results and guidelines from Central London |
||
18-Jun-2015 |
1L61 |
cancelled |
|||
11-Jun-2015 |
GU10 |
Jamie Voogt |
Green roofs in Canadian cities |
||
4-Jun-2015 |
1L61 |
Maarten van Reeuwijk |
High-fidelity simulations of turbulent entrainment in atmospheric boundary layers |
||
28-May-2015 |
1L61 |
Ting Sun |
Synergies between heat waves and urban heat islands |
||
21-May-2015 |
1L61 |
Christos Halios |
Observations of the morning transitions of the Convective Boundary Layer over London |
||
14-May-2015 |
1L61 |
Zhiwen Luo |
From building ventilation to urban ventilation |