Radio wave refractivity deduced from lidar measurements

Details Radio wave refractivity deduced from lidar measurements Radio wave refractivity deduced from lidar measurements

1990-12-31

1993-12-14

Envall, Jr., Roy N.

Boots, shoes, and leggings

7333501, 356342, G01W 110, G06F 1554

Patent

active

052709299

ABSTRACT:
A high resolution lidar is used to backscatter light from atmospheric aerosols. The actual relative humidity is measured at altitudes corresponding to those from which the backscattered light occurs. A mathematical relationship between the two is then derived and this is used to predict atmospheric relative humidity from subsequent lidar backscatter s measurements. The predicted relative humidity is used with temperature and pressures derived from standard lapse rates to calculate the radio refractivity of the atmosphere. Radio ray coverage is then determined based upon the calculated radio refractivity.

REFERENCES:
patent: 3446556 (1969-05-01), Collis
patent: 3688189 (1972-08-01), Lamb
patent: 3725914 (1973-04-01), Davidson et al.
patent: 4018534 (1977-04-01), Thorn et al.
patent: 4093918 (1978-06-01), Hitney
patent: 4125893 (1978-11-01), Hitney et al.
patent: 4289397 (1981-09-01), Itzkan et al.
patent: 4493553 (1985-01-01), Korb et al.
patent: 4502782 (1985-03-01), Werner et al.
patent: 4722599 (1988-02-01), Fruengel et al.
patent: 4847512 (1989-07-01), Seta
patent: 5075856 (1991-12-01), Kneizys et al.
patent: 5140523 (1992-08-01), Frankel et al.
Pourny et al., "Raman-lidar humidity sounding of the atmospheric boundaryyer", Apr. 15, 1979, pp. 1141-1148.
W. J. Lentz, The Visioceilometer: A Portable Visibility and Cloud Ceiling Height Lidar, TR-0105, Jan. 1982.
Hughes, Herbert G. et al, Sensitivity of A Lidar Inversion Algorithm To Parameters Relating Atomospheric Backscatter and Extinction, 1 Jun. 1985, pp. 1609-1613.
Warren, Russell E., Effect of Pulse-Air Correlation On Differential Absorption Lidar, 1 Nov. 1985, pp. 3472-3480.
Salemink, H. W. M., Quantitative Lidar At 532NM For Vertical Extinction Profiles and the Effect of Relative Humidity, 13 Mar. 1984, pp. 187-189.
Grant, William B., Differential Absorption Lidar Signal Averaging, 15 May 1988, pp. 1934-1938.
Hughes, Herbert G. et al, Double-Ended Lidar Technique for Aerosol Studies, 1 Jun. 1988, pp. 2273-2278.
Effect of relative humidity on the aerosol backscattering coefficient at 0.694- and 10.6 m wavelengths by James W. Fitzgerald, 1 Feb. 1984, vol. 23, No. 3, Applied Optics.
Naval Ocean Systems Center, Technical Document 1342 Revision 2.0, Feb. 1990 "Engineer's Refractive Effects Prediction System (EREPS) Revision 2.0" by W. L. Patterson et al.

Affiliated with

Also associated with

Rating

Radio wave refractivity deduced from lidar measurements does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Radio wave refractivity deduced from lidar measurements, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Radio wave refractivity deduced from lidar measurements will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1711132