Climatological Study to Determine the Impact of Icing on the Low Level Windshear Alert System. Volume II. Statistics.

Vilcans, Janis

i

Climatological Study to Determine the Impact of Icing on the Low Level Windshear Alert System. Volume II. Statistics.

1989-01-01
By Vilcans, Janis

File Language:

English

[PDF - 10.33 MB]

Details

Creators:

Vilcans, Janis
Corporate Creators:

John A. Volpe National Transportation Systems Center (U.S.)
Corporate Contributors:

Federal Aviation Administration
Subject/TRT Terms:
Publication/ Report Number:

DOT-TSC-FAA-89-03
Resource Type:

Tech Report
Geographical Coverage:

United States
Corporate Publisher:

United States. Department of Transportation. Federal Aviation Administration
Abstract:

The climatological study was performed to determine the impact of icing on the performance of the Low Level Winshear Alert System (LLWAS). ; This report Presents the Icing Statisctical profile in the form of data tables and histograms of 106 LLWAS sites. The icing statistical data were derived using freezing rain and freezing drizzle hourly reports obtained from the National Climatic data Center magnetic tape records. The meteorological data cover a 24-year history of the time period between January 1, 1965 to December 31, 1998. The statistics include: icing reports and duration (actual time of freezing precipitation up to a 48 hour limit), freezing duration (combination of both icing and glazing with and without weighting). Also presented is the ranking of all LLWAS sites based on the above listed parameter combinations including a contour map showing icing intensity of all site locations. Finally, the extent of the freezing effect on windshear sensors is demonstrated by using a graph from field test measurements collected during aperiod of light freezing rain.
Format:

PDF
Download URL:

https://rosap.ntl.bts.gov/view/dot/11218/dot_11218_DS1.pdf
File Type:

[PDF - 10.33 MB]
Collection(s):

Volpe Center
Main Document Checksum:

urn:sha256:6578499db6cf00070c226cac21f488717509d1a513c39ec41794c81355b7c885

File Language:

English

ON THIS PAGE

Details

Found an issue?

Send us an email at:

publishinghd@cdc.gov

ROSA P serves as an archival repository of USDOT-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by USDOT or funded partners. As a repository, ROSA P retains documents in their original published format to ensure public access to scientific information.