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Interpolation of Operational Radar Data to a Regular Cartesian Grid Exemplified by Munich’s Airport Radar Configuration

Augst, Ayla and Hagen, Martin (2017) Interpolation of Operational Radar Data to a Regular Cartesian Grid Exemplified by Munich’s Airport Radar Configuration. Journal of Atmospheric and Oceanic Technology, pp. 495-510. American Meteorological Society. DOI: 10.1175/JTECH-D-16-0159.1 ISSN 0739-0572

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Official URL: http://journals.ametsoc.org/doi/abs/10.1175/JTECH-D-16-0159.1?af=R

Abstract

Two methods for avoiding errors in the interpolation of operational radar data to a regular grid are presented. The issue is the interpolation of radial velocity and the subsequent estimation of horizontal wind components. It is shown how a vertical gradient of the horizontal wind in combination with gaps of data between scans with different elevation angles affect the interpolation. Simulated radar data for the radar configuration covering the Munich airport in southern Germany are used for illustration. The origin of the abovementioned errors is explained using simplified wind fields. With wind fields generated by the German nonhydrostatic atmospheric prediction model COSMO-DE, the effectiveness of the methods is presented. Both methods contribute to a reduction in interpolation error—by 44% and 35%, respectively—compared to a standard interpolation scheme used for many operational radar configurations.

Item URL in elib:https://elib.dlr.de/111353/
Document Type:Article
Title:Interpolation of Operational Radar Data to a Regular Cartesian Grid Exemplified by Munich’s Airport Radar Configuration
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Augst, AylaDLR, IPAUNSPECIFIED
Hagen, MartinDLR, IPAUNSPECIFIED
Date:2017
Journal or Publication Title:Journal of Atmospheric and Oceanic Technology
Refereed publication:Yes
Open Access:Yes
Gold Open Access:No
In SCOPUS:Yes
In ISI Web of Science:Yes
DOI :10.1175/JTECH-D-16-0159.1
Page Range:pp. 495-510
Publisher:American Meteorological Society
ISSN:0739-0572
Status:Published
Keywords:Wind; Radars/Radar observations; Error analysis; Interpolation schemes
HGF - Research field:Aeronautics, Space and Transport
HGF - Program:Aeronautics
HGF - Program Themes:air traffic management and operations
DLR - Research area:Aeronautics
DLR - Program:L AO - Air Traffic Management and Operation
DLR - Research theme (Project):L - Climate, Weather and Environment
Location: Oberpfaffenhofen
Institutes and Institutions:Institute of Atmospheric Physics > Transport Meteorology
Deposited By: Ziegele, Brigitte
Deposited On:06 Mar 2017 12:16
Last Modified:31 Jul 2019 20:08

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