10/5/151 (Item 151 from file: 109) 188888 NSA-16-012934 RECOVERY OF THE LAND PLANTS AT ENIWETOK ATOLL FOLLOWING A NUCLEAR DETONATION Palumbo, R.F. Univ. of Washington, Seattle \ Radiation Botany vii. Publication Date: Jan. 1962 182-9 p. Journal Announcement: NSA16 Document Type: Journal Article Language: English S>A long-term investigation was conducted at Eniwetok Atoll during 1954-57 to determine the rate of recovery of land plants damaged by the radiation, shock, and heat blast of the Nectar detonation in 1954. At Belle Island seven plant species were tagged, measured, and photographed before the detonation. At approximately monthly intervals after the detonation for a period of ten months, and again after an interval of six months, the plants were observed and photographed. The first indication of recovery was observed on the eighth day, at which time buds were noticeable on stems of Scaevola and Messerschmidia plants. In a month’s time, most of the plants had formed new leaves and some had produced flowers and fruits. In six months, the general condition of the vegetation was similar to that which existed before the detonation. Two plants, Guettarda and Portulaca, which were unhealthy at ten months, had improved by the sixteenth month. Photographs of the recovery of some of the plants are included, as well as a discussion of agents other than radiation which have been reported to cause similar damage to plants of the coral atolls of the Pacifie Ocean. (auth) Descriptors: ATOMIC EXPLOSIONS; FRUIT; PHOTOGRAPHY; PLANTS; RADIATION INJURIES; Subject Codes 10/5/152 188763 (NSA): BIOLOGY AND MEDICINE (Item 152 from file: NSA-16-012809 LEAVES; RECOVERY NUCLEAR EXPLOSIONS; 109) U.S. NAVY STRUCTURES. ANNEX 3.2 OF ATOMIC WEAPON TESTS AT ENIWETOK, 1951 SCIENTIFIC DIRECTOR’S REPORT OF Hayen, C.L. Bureau of Yards and Docks Publication Date: June 1952 303 p. Primary Report No.: WI-91 Note: Operation GREENHOUSE Journal Announcement: NSA16 Document Type: Report Language: English Structures are subjected to a 50-kt blast, in order to obtain fundamental data on structures subjected to blast loading, to observe the response of the structures under this loading, and to determine the relative blast-resistance merits of several structural types. Modes of faiMure are determined. Shaped structures are found to be superdor to rectangular structures. Earth cover for the structures is also found to increase the blast resistance. It is found that standard Navy heavy bomb-proof structures with modifications can withstand a near-surface atomic burst at ground zero. (T.F.H.) Descriptors: CONFIGURATION; EARTH; FAILURES; NUCLEAR EXPLOSIONS; QUANTITATIVE ANALYSIS; REACTOR FUELING; SHOCK WAVES; SURFACES Subject Codes (NSA): GENERAL AND MISCELLANEOUS 10/5/153 188762 (Item 153 from file: NSA-16-012808 109) U.S. ARMY STRUCTURES. APPENDIX 2. AS-BUILT CONSTRUCTION. ANNEX 3.1 SCIENTIFIC DIRECTOR’S REPORT OF ATOMIC WEAPON TESTS AT ENIWETOK, 1951 Ammann and Whitney, New York Publication Date: Nov. 1951 143 p. Primary Report No.: WIT-60(REF)Pt.III q 0 3 b 28 Note: Operation GREENHOUSE a Journal Announcement: NSA16 OF