on 2S July. TIle 26 July profile has a 1.2"C (2.2°F) surface invcrslC'n
without a humidity lapse sufficicnl. to cause super-refraction; however,
a O.gOC inversion between 1115 and 1275 m. is associated with a sharp
humidity dl'op and a resulting elevated duct with a gradient of -167 km- 1 .
lnis elevated layer is quite strong enough to produce AP effects on
radaT. Unidentified radar targets began appearing at 2050 LST on 26
.July and continued unti 1 after mldnight.
In summary, the following statements appear to be correl~t:
(1) TIle atmospheric conditions during the period 19-20 and 25-27
.1ulv, 1952, in the Washington, D. C., area, were conducive to anomalous
propagation of radar signals;
(2) lbe unidentified radar returns obtained during these inci-
dents were most likely the result of anomalous propagation CAP);
(3) 'n1e visual ohj ects were, with one or two possi bi e exc.epti ons.
identifiable as most probably meteors and scintillating stars.
Wichita. Kans. area, 2 AUf;ust 1965, "early mornin,!! hours"
~_o "shortly_after 0600" LST. Weather: clear, temperature 61"F
to 70°F, wind at surface: light from WSW. 111is is classed as pri-
marily radar since the bulk of the reports were from radar and the
first visual ohject was never described. lhe refractivity profiles for
Topeka, Kans. and Oklahoma City, Okla. are shown in Figs. 16 ana 17.
During the early morning hours of 2 August 1965, the Wich1.tn
Weather Bureau Airport Sta:ion was contacted by the dispatcher
of the Sedgwick County Sheriffs Department with regard to an object
sighted in the sk;r near Well ington 1 Kans. (25 mi. south of Wichita).
'lhe radar operator, ~1r .•hhn S. Shockley observed what appeared to be
an aircraft target near Udall, Kans., 1S mi. northeast of Wellington.
'(his target moved northward at 40 to 50 mph.
During the next hour and a half several of these targets were
observed on the radar scope over central Kan~s moving slowly northward
occasionally remaining stationary, or moving about erratically.
236
on 25 July. TIle 26 July profile has a 1.2~C (2.2°F) surface inversiC'!1
without a humidity lapse sufficicn~ to cause super-refraction; however,
a o.gOe inversion between 1115 and 1275 m. is associated with a sharp
d -1
humi ity d-rop and a resulting elevated duct with a gradient of -167 km .
11-lis elevated layer is quite strong enough to produce /II' ~~ffects on
radar. Unidentified radar targets began appearing at 2050 LST on 26
.July and continued unti 1 after mldnight.
In SUmmllry, the following statements appear to be correet:
(1) TIle atmospheric conditions during the period 19-20 and 25-27
Julv, 1952, in the Washington, D. C., area, were conducive to anomalous
propagation of radar signals;
(2) The unidentified radar returns obtained dUTing these inci-
dents were most likely the result of anomalous propagation CAP);
(3) 'n1e visual objects were, with one or two possible eXL'ertjon~,
identifiable as most probably meteors and scinti llating stars.
Wichita. Kans. area, 2 i\ul~ust 1965, "early marnin? hours"
~~o "shortly after 0600" LS'f. Weather: clear, temperature 61°r:
to 70°F, wind at surface: light from WSW. lbis is classed as pri-
marily radar since the bulk of tIle reports were from radar and the
first visual object was never described. lbe refractivity profiles for
Topeka, Kans. and Oklahoma City, Okla. are shown in Figs. 16 aOll 17.
During the early morning hours of 2 August 1965, the Wichi.tn
Weather Bureau Airport Sta:ion was contacted by the dispatcher
of the Sedgwick County Sheriffs Department with regard to an object
sighted in the sk;r near Wellington, Kans. (25 mi. south of Wichita).
'!1le raJar operator, ~Ir ...r"hn S. Shockley observed what appeared to be
all aircraft target near Udall, Kans., 15 mi. northeast of Wellington.
11115 target moved northward at 40 to 5() mph.
During the next hour and a half 5everal nf these targets were
obscrv€d on the radar scope over central Kan~s moving slowly northward
o\;casionally remaining stationary, or moving about erratically.
236