INFLUENCE OF SHADING AND SKY-VIEW FACTOR ON ROAD TEMPERATURE FORECAST

0497881 - ÚFA 2019 RIV US eng C - Konferenční příspěvek (zahraniční konf.)
Sedlák, Pavel - Bližňák, Vojtěch - Pešice, Petr - Pop, Lukáš - Sokol, Zbyněk - Zacharov, Petr, jr.
INFLUENCE OF SHADING AND SKY-VIEW FACTOR ON ROAD TEMPERATURE FORECAST.
Proceedings of the 19th SIRWEC conference. Washington: AASHTO, 2018.
[SIRWEC2018 Internation Road Weather Conference /19./. Smolenice (SK), 29.05.2018-01.06.2018]
Grant ostatní: OP-PPR(CZ)(CZ) CZ.07.1.02/0.0/0.0/16_023/0000117; Ministerstvo pro místní rozvoj ČR(CZ) CZ.2.16/3.1.00/24512
Program: Operační program Praha - pól růstu ČR; OP Praha Konkurenceschopnost
Institucionální podpora: RVO:68378289
Klíčová slova: road weather forecasting * shading * direct shortwave radiation * sky view restriction * ICEWARN project
Obor OECD: Meteorology and atmospheric sciences
http://develop.sirwec.org/wp-content/uploads/Papers/2018-Smolenice/P10.pdf

Within the ICEWARN project, the Institute of Atmospheric Physics of CAS, Prague, and the Czech
Hydrometeorological Institute currently collaborate in developing and application of the FORTE model for a
linearly continuous road weather forecast in the city of Prague (1). The model stems from the METRo model (2),
the initial modifications being described in (3). The ensemble method (4) is not applied in the current project
ICEWARN. In cities, the impact of obstacles on the modification of radiation fluxes, and consequently on the
road temperature, is of a particular importance. The modification includes shading the direct shortwave
radiation and the sky view restriction. Our present contribution is focused on implementing and testing a
parametrization of these effects in the FORTE model.

When evaluating the model results for a winter period as a whole, shading effects were found for none of the
locations of road weather stations (RWS) in Prague. That was why we decided to test the model against the RWS
in the NW part of the Czech Republic.
Trvalý link: http://hdl.handle.net/11104/0290347