derived from a two-night case study of ESF onset conditions observed at

Kwajalein Atoll

(Marshall

Islands)

using the ALTAIR incoherent scatter

radar and all-sky optical imaging techniques. The major difference

between nights when ESF instabilities did not occur
and did occur

(August

15,

1988)

(August 14,

in the Kwajalein sector was

1988)

at the

northern meridional gradient of 6300-[angstrom] airglow was reduced on
the night of limited ESF activity. Modeling results suggest that this
unusual airglow pattern is due to equatorward neutral winds. Previous
researchers have shown that transequatorial thermospheric winds can
exert a control over ESF seasonal and longitudinal occurrence patterns
by inhibiting Rayleigh-Taylor instability growth rates. They present
evidence to suggest that this picture can be extended to far shorter
time scales, namely, that ‘surges’ in transequatoral winds acting over
characteristic times of a few hours to a day can result ina
stabilizing influence upon irregularity growth rates. The seemingly
capricious nature of ESF onset may thus be controlled, in part, by the

inherent variability of low-latitude thermospheric winds.

Major Descriptors:

*SPREAD F -- DAILY VARIATIONS

Descriptors: AIRGLOW; INSTABILITY GROWTH RATES; MATHEMATICAL MODELS; RADAR;
RAYLEIGH-TAYLOR INSTABILITY; THERMOSPHERE; WIND
Broader Terms: EARTH ATMOSPHERE; F REGION; INSTABILITY; IONOSPHERE;
MEASURING INSTRUMENTS; PLANETARY IONOSPHERES; RANGE FINDERS; VARIATIONS

Subject Categories:
Phenomena -~

661320*

(1992-)

INIS Subject Categories:
phenomena
10/5/317

-- Auroral,

B3330*

(Item 17 from file:

Ionospheric,

-- Auroral,

& Magnetospheric

ionospheric,

& magnetospheric

103)

03418758
AIX-23-082981; EDB-92-181515
Title: Late medical consequences of exposure to radioactive fallout
Rongelap and Utirik 35 years after ‘BRAVO’

Author(s):

Adams,

W.H.

(Brookhaven National Lab.,

Upton,

NY

(United

States). Dept. of Medical)
Conference Title: 3. international conference on low-level measurements of
actinides and long-lived radionuclides in biological and environmental
samples
Conference Location: Bombay (India)
Conference Date: 29
Source: Journal of Radioanalytical and Nuclear Chemistry

Jan - 2 Feb 1990
(Switzerland)
v

156:2.
Coden: JRNCD
ISSN: 0236-5731
Publication Date: Jan 1992
p 269-290
Report Number(s):
CONF -900125-Document Type: Journal Article; Conference Literature; Numerical Data
Language: In English
Journal Announcement: EDB9224
Subfile:
ETD (Energy Technology Data Exchange).
INIS (non-US Atomindex
input AIX)

US DOE Project/NonDOE Project: NP

-

Marshall Islands are discussed. (author) 23 refs.; 6 figs.; 9 tabs.
Major Descriptors: *BRAVO EVENT -- DELAYED RADIATION EFFECTS
Descriptors: AGE GROUPS; EXPERIMENTAL DATA; FALLOUT; HEMATOLOGY; HUMAN
POPULATIONS; MARSHALL ISLANDS; MEDICAL EXAMINATIONS; NEOPLASMS;
RADIATION DOSES; SYMPTOMS; THYROIDITIS; TIME DEPENDENCE
Broader Terms: BIOLOGICAL EFFECTS; BIOLOGICAL RADIATION EFFECTS; CASTLE
PROJECT; DATA; DISEASES; DOSES; ENDOCRINE DISEASES; EXPLOSIONS;
INFORMATION; ISLANDS; MEDICINE; MICRONESIA; NUCLEAR EXPLOSIONS;
NUMERICAL DATA; OCEANIA; POPULATIONS; RADIATION EFFECTS; SURFACE
EXPLOSIONS

Subject Categories: 560151*
-- Radiation Effects on Animals -- Man
560160
-- Radionuclide Effects, Kinetics, & Toxicology
INIS Subject Categories: C1500*
-- Effects of External Radiation on Man
C2100
-- Tissue Distribution, Metabolism, Toxicoloav & Removal of

I003bb9

Country of Origin: United States
Country of Publication: Hungary
Abstract: Data collected by the Brookhaven Medical Program on the late
medical consequences of the exposure to radioactive fallout originated
from the detonation of a thermonuclear device on Bikini atoll in

Select target paragraph3