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Nowcasting snow for airports at heterogeneous terrain

Saltikoff, Elena and Hagen, Martin and Juntti, Heikki and Kaltenböck, Rudolf and Pulkkinen, Seppo (2018) Nowcasting snow for airports at heterogeneous terrain. Geophysica, 53 (1), pp. 29-41. Geophysical Society of Finland. ISSN 0367-4231

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Official URL: http://www.geophysica.fi/index.php?action=displayissue&volume=53&number=1

Abstract

The forecast of snow events at airports is a major challenge in airport operation during winter time. In contrast to rain, snow has to be actively removed from aircraft or operation areas. Short term forecasting - or nowcasting - of snow events is required for airport operation. Airport stakeholders need to know the start and duration of snow events, but they need also an estimate of the snow accumulation during the event. Extrapolation techniques based upon weather radar observations are used to generate a probabilistic nowcast for airports. These techniques assume a linear propagation of the precipitation fields. In case of intensifying, decaying or non-linear propagation the forecast quality is considerably reduced. In this paper we show that lake effects along the coastlines or flow within the proximity of mountains degrade the forecast quality and the lead time for reliable nowcasts is shorter than for situations which are not affected by heterogeneous terrain.

Item URL in elib:https://elib.dlr.de/122633/
Document Type:Article
Title:Nowcasting snow for airports at heterogeneous terrain
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Saltikoff, ElenaFMI, Helsinki, FinnlandUNSPECIFIED
Hagen, MartinDLR, IPAhttps://orcid.org/0000-0003-4714-0775
Juntti, HeikkiFMI, Helsinki, FinnlandUNSPECIFIED
Kaltenböck, RudolfAustrocontrol, Wien, ÖsterreichUNSPECIFIED
Pulkkinen, SeppoFMI, Helsinki, FinnlandUNSPECIFIED
Date:October 2018
Journal or Publication Title:Geophysica
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:No
Volume:53
Page Range:pp. 29-41
Publisher:Geophysical Society of Finland
ISSN:0367-4231
Status:Published
Keywords:weather radar, aviation, probabilistic forecast, snow fall
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Space
HGF - Program Themes:Earth Observation
DLR - Research area:Raumfahrt
DLR - Program:R EO - Erdbeobachtung
DLR - Research theme (Project):R - Vorhaben Atmosphären- und Klimaforschung
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Lidar
Deposited By: Hagen, Dr.rer.nat. Martin
Deposited On:11 Dec 2018 15:31
Last Modified:31 Jul 2019 20:20

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