Urban energy exchanges monitoring from space

Chrysoulakis, N. (författare)

Grimmond, S. (författare)

Feigenwinter, C. (författare)

Lindberg, Fredrik, 1974 (författare): Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences

Gastellu-Etchegorry, J. P. (författare)

Marconcini, M. (författare)

Mitraka, Z. (författare)

Stagakis, S. (författare)

Crawford, B. (författare)

Olofson, K. Frans G., 1976 (författare): Gothenburg University,Göteborgs universitet,Institutionen för geovetenskaper,Department of Earth Sciences

Landiers, L. (författare)

Morrison, W. (författare)

Parlow, E. (författare)

(creator_code:org_t)

2018-07-31
2018
Engelska.
Ingår i: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 8

Relaterad länk:: https://www.nature.c...; visa fler...; https://gup.ub.gu.se...; https://doi.org/10.1...; visa färre...

Abstract Ämnesord

Stäng

One important challenge facing the urbanization and global environmental change community is to understand the relation between urban form, energy use and carbon emissions. Missing from the current literature are scientific assessments that evaluate the impacts of different urban spatial units on energy fluxes; yet, this type of analysis is needed by urban planners, who recognize that local scale zoning affects energy consumption and local climate. Satellite-based estimation of urban energy fluxes at neighbourhood scale is still a challenge. Here we show the potential of the current satellite missions to retrieve urban energy budget fluxes, supported by meteorological observations and evaluated by direct flux measurements. We found an agreement within 5% between satellite and in-situ derived net all-wave radiation; and identified that wall facet fraction and urban materials type are the most important parameters for estimating heat storage of the urban canopy. The satellite approaches were found to underestimate measured turbulent heat fluxes, with sensible heat flux being most sensitive to surface temperature variation (-64.1, +69.3 W m(-2) for +/- 2 K perturbation). They also underestimate anthropogenic heat fluxes. However, reasonable spatial patterns are obtained for the latter allowing hot-spots to be identified, therefore supporting both urban planning and urban climate modelling.

Av författaren/redakt...: Chrysoulakis, N.; Grimmond, S.; Feigenwinter, C.; Lindberg, Fredri ...; Gastellu-Etchego ...; Marconcini, M.; visa fler...; Mitraka, Z.; Stagakis, S.; Crawford, B.; Olofson, K. Fran ...; Landiers, L.; Morrison, W.; Parlow, E.; visa färre...

Om ämnet

Kungliga biblioteket hanterar dina personuppgifter i enlighet med EU:s dataskyddsförordning (2018), GDPR. Läs mer om hur det funkar här.
Så här hanterar KB dina uppgifter vid användning av denna tjänst.