elib
DLR-Header
DLR-Logo -> http://www.dlr.de
DLR Portal Home | Imprint | Privacy Policy | Contact | Deutsch
Fontsize: [-] Text [+]

Use of Numerical Weather Prediction Analysis for Testing Pressure Altitude Measurements on Aircraft - An Application Example

Schumann, Ulrich and Giez, Andreas and Mallaun, Christian and Zöger, Martin (2017) Use of Numerical Weather Prediction Analysis for Testing Pressure Altitude Measurements on Aircraft - An Application Example. Avionics & Space Testing, 25-26 April 2017, München.

[img] PDF (paper)
1MB

Official URL: http://www.avionics-space-testing.com/wp-content/uploads/2017/03/AST17-Pre-Conference-Guide-A5-web.pdf

Abstract

Accurate static pressure measurements are essential for safe navigation. Aircraft static pressure measurements need to be calibrated and verified. We recently compared trailing cone static pressure measurements behind two different jet aircraft up to flight level 450 during 6 flights on different days with numerical weather prediction (NWP) data. The GNSS height above mean sea level measured during these flights is compared to NWP geopotential height. The NWP data were provided by the European Centre for Medium-Range Weather Forecasts (ECMWF). The height differences at same pressure are 0.6±2.8 m on average. The corresponding pressure difference was determined to be -0.01±0.15 hPa. The method of comparing operational pressure/GNSS measurements on aircraft with NWP analysis or predictions can be used for testing the height keeping performance of aircraft after or during operation. Here we present an application example of the method. We show static pressure measured by research instruments on the German atmospheric research aircraft HALO compared to ECMWF analysis for 57 hours of data from an atmospheric research project over Europe in 2014. The method is used to derive corrected static pressure data. The corrected pressure also leads to a slightly better agreement between temperature measurements and ECMWF data which differed more when using the uncorrected pressure data as input for interpolation in the NWP data.

Item URL in elib:https://elib.dlr.de/112420/
Document Type:Conference or Workshop Item (Speech)
Title:Use of Numerical Weather Prediction Analysis for Testing Pressure Altitude Measurements on Aircraft - An Application Example
Authors:
AuthorsInstitution or Email of AuthorsAuthors ORCID iD
Schumann, UlrichDLR, IPAhttps://orcid.org/0000-0001-5255-6869
Giez, AndreasDLR, FXUNSPECIFIED
Mallaun, ChristianDLR, FXUNSPECIFIED
Zöger, MartinDLR, FXUNSPECIFIED
Date:2017
Refereed publication:No
Open Access:Yes
Gold Open Access:No
In SCOPUS:No
In ISI Web of Science:No
Page Range:pp. 1-14
Status:Published
Keywords:Height, pressure, temperature, measurements, NWP
Event Title:Avionics & Space Testing
Event Location:München
Event Type:international Conference
Event Dates:25-26 April 2017
Organizer:Avionics & Space Testing <partner_mailings@ukipartner.com>
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
Flight Experiments
Deposited By: Schumann, Prof.Dr.habil. Ulrich
Deposited On:22 May 2017 07:49
Last Modified:31 Jul 2019 20:09

Repository Staff Only: item control page

Browse
Search
Help & Contact
Information
electronic library is running on EPrints 3.3.12
Copyright © 2008-2017 German Aerospace Center (DLR). All rights reserved.