4 October 2017 The impact of urban morphology and land cover on the sensible heat flux retrieved by simultaneous satellite and in-situ observations
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Abstract
Retrieval of sensible heat flux requires the input of, among others, temperature gradient and wind speed. The lower level of temperature measurement is commonly replaced by remotely-sensed radiative surface temperature. Studies that utilize simultaneous satellite and in-situ retrievals of sensible heat flux are scarce. In this paper, we present preliminary results of the analyses of the impact of urban morphology and land cover on the sensible heat flux. It was calculated by two approaches, the first was based on satellite observations of radiative surface temperature and the second utilized in-situ measurements of road kinetic temperature. Except for the surface temperature, for both approaches we used the same input parameters. Road kinetic temperature and wind speed were measured by automatic road weather network. Nine stations were located across the city of Warsaw outside the city centre in low-rise urban structure. A time series of MODIS thermal data for the period 2005-2014 was utilized.
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Lech Gawuc, Lech Gawuc, Lech Łobocki, Lech Łobocki, Joanna Struzewska, Joanna Struzewska, } "The impact of urban morphology and land cover on the sensible heat flux retrieved by simultaneous satellite and in-situ observations", Proc. SPIE 10431, Remote Sensing Technologies and Applications in Urban Environments II, 1043103 (4 October 2017); doi: 10.1117/12.2279400; https://doi.org/10.1117/12.2279400
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