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Anthropogenic Heat Flux Estimation from Space: The URBANFLUXES Project

Chrysoulakis, Nektarios und Feigenwinter, Christian und Al Bitar, Ahmad und Esch, Thomas und Del Frate, Fabio und Gabey, Andy und Gastellu-Etchegorry, Jean-Philippe und Grimmond, Sue und Heldens, Wieke und Klostermann, Judith und Lindberg, Fredrik und Mitraka, Zina und Olofson, Frans und Parlow, Eberhard (2016) Anthropogenic Heat Flux Estimation from Space: The URBANFLUXES Project. AMS 22nd Symposium on Boundary Layers and Turbulence, 2016-06-20 - 2016-06-24, Salt Lake City, USA.

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Kurzfassung

The H2020 project URBANFLUXES (URBan ANthrpogenic heat FLUX from Earth observation Satellites) investigates the potential of Copernicus Sentinels to retrieve anthropogenic heat flux, as a key component of the Urban Energy Budget (UEB). Temperatures in cities are predicted to rise even more in the future, resulting in increased energy demand for cooling systems in low and mid-latitude cities, modifying UEB. A positive feedback cycle occurs in many urban areas, where higher temperatures result in more energy being used for cooling, which in turn adds to heat emissions and increases temperatures further during periods with increased heat wave risk. It is expected that without mitigation measures, energy demand will continue to increase during the warmest months. URBANFLUXES advances the current knowledge of the impacts of UEB fluxes on urban heat island and consequently on energy consumption in cities. This will lead to the development of tools and strategies to mitigate these effects, improving thermal comfort and energy efficiency. In URBANFLUXES, the anthropogenic heat flux is estimated as a residual of UEB. Therefore, the rest UEB components, namely, the net all-wave radiation, the net change in heat storage and the turbulent sensible and latent heat fluxes are independently estimated from Earth Observation (EO), whereas the advection term is included in the error of the anthropogenic heat flux estimation from the UEB closure. A dense network of conventional meteorological stations is used in each case study city: London, Basel and Heraklion. EO data is initially analyzed to map urban surface morphology and cover, whilst a new approach has been developed to define appropriate zones for energy partitioning. Using these zones as a framework, advanced EO-based methods are used to estimate UEB fluxes: a sophisticated radiative transfer model (Discrete Anisotropic Radiative Transfer) was employed to simulate the net all-wave radiation; the computation of the storage term was based on the Element Surface Temperature Method, supported by the auxiliary datasets; and the estimation of the turbulent heat fluxes was based on the Aerodynamic Resistance Method, supported by standard meteorological measurements. In-situ flux measurements (Eddy Covariance, scintillometry) and bottom-up approaches (inventories, building energy models) were used to evaluate URBANFLUXES outcomes, whereas uncertainties were specified and analyzed. The project exploits Sentinels observations, which provide improved data quality, coverage and revisit times and increase the value of EO data for scientific work and future emerging applications. These observations can reveal novel scientific insights for the detection and monitoring of the spatial distribution of the urban energy budget fluxes in cities, thereby generating new EO opportunities. URBANFLUXES thus exploits the European capacity for space-borne observations to enable the development of operational services in the field of urban environmental monitoring and energy efficiency in cities. It is therefore expected to prepare the ground for further innovative exploitation of European space data in scientific activities (climate variability studies at local and regional scales) and future and emerging applications (sustainable urban planning, mitigation technologies) to benefit climate change mitigation/adaptation and civil protection. More information on the project can be found at http://urbanfluxes.eu.

elib-URL des Eintrags:https://elib.dlr.de/108447/
Dokumentart:Konferenzbeitrag (Poster)
Titel:Anthropogenic Heat Flux Estimation from Space: The URBANFLUXES Project
Autoren:
AutorenInstitution oder E-Mail-AdresseAutoren-ORCID-iDORCID Put Code
Chrysoulakis, Nektariosfoundation for research and technology - hellas (forth), heraklion, crete, greeceNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Feigenwinter, Christianuniversity of basel, basel, switzerlandNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Al Bitar, AhmadcesbioNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Esch, ThomasThomas.Esch (at) dlr.dehttps://orcid.org/0000-0002-5868-9045NICHT SPEZIFIZIERT
Del Frate, Fabiogeo-kNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Gabey, Andyuniversity of readingNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Gastellu-Etchegorry, Jean-PhilippecesbioNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Grimmond, Sueuniversity of readingNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Heldens, WiekeWieke.Heldens (at) dlr.dehttps://orcid.org/0000-0001-6209-5664NICHT SPEZIFIZIERT
Klostermann, Judithwageningen universityNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Lindberg, Fredrikgötheborg universityNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Mitraka, ZinaforthNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Olofson, Fransgötheborg universityNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Parlow, Eberharduniversity of basel, basel, switzerlandNICHT SPEZIFIZIERTNICHT SPEZIFIZIERT
Datum:2016
Referierte Publikation:Nein
Open Access:Ja
Gold Open Access:Nein
In SCOPUS:Nein
In ISI Web of Science:Nein
Seitenbereich:Seite 1
Status:veröffentlicht
Stichwörter:Sentinels; urban climate; urban energy budget
Veranstaltungstitel:AMS 22nd Symposium on Boundary Layers and Turbulence
Veranstaltungsort:Salt Lake City, USA
Veranstaltungsart:internationale Konferenz
Veranstaltungsbeginn:20 Juni 2016
Veranstaltungsende:24 Juni 2016
HGF - Forschungsbereich:Luftfahrt, Raumfahrt und Verkehr
HGF - Programm:Raumfahrt
HGF - Programmthema:Erdbeobachtung
DLR - Schwerpunkt:Raumfahrt
DLR - Forschungsgebiet:R EO - Erdbeobachtung
DLR - Teilgebiet (Projekt, Vorhaben):R - Vorhaben Fernerkundung der Landoberfläche (alt)
Standort: Oberpfaffenhofen
Institute & Einrichtungen:Deutsches Fernerkundungsdatenzentrum > Landoberfläche
Hinterlegt von: Heldens, Dr Wieke
Hinterlegt am:28 Nov 2016 11:57
Letzte Änderung:24 Apr 2024 20:13

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