https://atmoswiki.azurewebsites.net/ 2026-04-19T14:01:19+00:00 https://atmoswiki.azurewebsites.net/ https://atmoswiki.azurewebsites.net/lib/exe/fetch.php?media=wiki:favicon.ico text/html 2020-01-29T17:25:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://atmoswiki.azurewebsites.net/doku.php?id=atmos:citation:cals:winds:2005_09_02&rev=1580318748&do=diff September 2, 2005 Heading Offset Calibration East/West Taxies Time Segments (05_09_02_19_06_02.eastwest.hoffset) * 78100 78157 * 78220 78270 * 78330 78388 * 78438 78495 North/South Taxies Time Segments * 78596 78646 * 78684 78732 * text/html 2020-01-29T17:25:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://atmoswiki.azurewebsites.net/doku.php?id=atmos:citation:cals:winds:aircraft_wind_equations&rev=1580318748&do=diff The equation for calculating the atmospheric winds based the five port pressure measurements and the Applanix system are taken from “Aircraft Measurements in the Boundary Layer” by Donald H. Lenschow. Khelif et al. also describe about the same set of wind equations. text/html 2020-01-29T17:25:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://atmoswiki.azurewebsites.net/doku.php?id=atmos:citation:cals:winds:bismarck_rawinsonde_sounding_comparison_july_25_2003&rev=1580318748&do=diff Bismarck Rawinsonde Sounding Comparison On July 25, 2003, the University of North Dakota's Citation aircraft flew over the Bismarck, North Dakota rawinsonde launch site. The rawinsonde itself was observed by aircraft crew members while making measurement at the first altitude segment. The aircraft could not follow the rawinsonde down wind of the launch site since it was restricted to fly within an airspace box. The aircraft flew approximately 3 minute segments in two directions at four diffe… text/html 2020-01-29T17:25:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://atmoswiki.azurewebsites.net/doku.php?id=atmos:citation:cals:winds:calibration_procedure&rev=1580318748&do=diff The calibration of the University of North Dakota's Citation Aircraft wind system involves four basic components. * Determining the offset, if any, between the aircraft heading angle and track angle. * Determining the alpha angle calibration coefficients. text/html 2020-01-29T17:25:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://atmoswiki.azurewebsites.net/doku.php?id=atmos:citation:cals:winds:calibration_validation&rev=1580318748&do=diff Reverse Track Flight (May 23, 2003 - Comparison 1) Reverse Track Flight (May 23, 2003 - Comparison 2) COBRA Flight (June 6, 2003 - Second Flight) Bismarck Rawinsonde Sounding Comparison (July 25, 2003) text/html 2020-01-29T17:25:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://atmoswiki.azurewebsites.net/doku.php?id=atmos:citation:cals:winds:cobra_flight_june_6_2003_-_second_flight&rev=1580318748&do=diff Wind Calibration Validation: COBRA Flight (June 6, 2003) Using the wind calibration based on the July 11, 2003 flight, a comparison of the time segments is made for the June 6, 2003 COBRA flight when the aircraft flew at the same altitude (Figure 1) and over the same location (Figure 2). The flight plan called for continuous altitude changes on a back and forth segment. Altitude segments were selected that corresponded to time periods when the aircraft was in a similar location (see Figure 2… text/html 2023-12-19T15:57:38+00:00 Anonymous (anonymous@undisclosed.example.com) https://atmoswiki.azurewebsites.net/doku.php?id=atmos:citation:cals:winds:home&rev=1703001458&do=diff Aircraft Winds (Gust Probe Systems) * Introduction * Aircraft Wind Equations * Calibration Procedure * Calibration Validation * Software Details * Calibrations * September 2, 2005 Calibration * Saudi Fall 2023 Winds Calibration text/html 2020-01-29T17:25:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://atmoswiki.azurewebsites.net/doku.php?id=atmos:citation:cals:winds:introduction&rev=1580318748&do=diff The three dimensional wind vector calculations are based on the difference between the aircraft's air speed and ground speed. The aircraft's air speed is determined using five pressure ports (Figure 1) located on the nose of the aircraft. The Pitot Nose pressure is measured using the center port, the attack angle is measured using the top and bottom ports, and the sideslip angle is measured using the difference between the two side ports. Bleed air from the engines is used to heat the radome … text/html 2020-01-29T17:25:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://atmoswiki.azurewebsites.net/doku.php?id=atmos:citation:cals:winds:reverse_track_flight_may_23_2003_-_comparison_1&rev=1580318748&do=diff Wind Validation: Reverse Track Flight (May 23, 2003 Comparison 1) Using the wind calibration based on the July 11, 2003 flight, a comparison of three time segments is made for the May 23, 2003 reverse track flight when the aircraft flew over a similar location. Figures 1-5 illustrate the calculated parameters for the comparison time periods: Time segment 1 is from 65125 to 65180, time segment 2 is from 65410 to 65495, and time segment 3 is from 65645 to 65715. text/html 2020-01-29T17:25:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://atmoswiki.azurewebsites.net/doku.php?id=atmos:citation:cals:winds:reverse_track_flight_may_23_2003_-_comparison_2&rev=1580318748&do=diff Wind Calibration Validation: Reverse Track Flight (May 23, 2003 - Comparison 2) Using the wind calibration based on the July 11, 2003 flight, a comparison of two time segments is shown for the May 23, 2003 reverse track flight when the aircraft flew over a similar location (Figure 1). text/html 2020-01-29T17:25:48+00:00 Anonymous (anonymous@undisclosed.example.com) https://atmoswiki.azurewebsites.net/doku.php?id=atmos:citation:cals:winds:software_details&rev=1580318748&do=diff Wind Calibration and Processing Programs All the calibration and processing software module's described below are executed from the shell prompt. Type the name of the processing module to get a list of input parameters for that program. Each software module is started with a