Sixty years of forensic seismology at AWE Blacknest

2021 ◽  
Vol 62 (4) ◽  
pp. 4.36-4.42
Author(s):  
David Green ◽  
Ross Heyburn ◽  
Jessica Keeble ◽  
Alexandra Nippress ◽  
Stuart Nippress ◽  
...  

Abstract David Green, Ross Heyburn, Jessica Keeble, Alexandra Nippress, Stuart Nippress, Sheila Peacock and John Young review the history of the UK's seismological monitoring of underground nuclear testing

2020 ◽  
Vol 6 (3) ◽  
pp. 293-312
Author(s):  
C. A. DeCoursey ◽  
Ewa B. Krawczyk

Marshallese youth face extraordinary challenges in creating an identity, due to their economy, isolated location – the Marshall Islands are located in the central Pacific Ocean and comprise of more than 1200 islands and islets – the history of US nuclear testing in the islands and climate change. Contemporary youth identity construction requires constant acts of acculturation, due to media and globalization. This study used content and transitivity analyses to explore how Marshallese youth understand their distinctive look. Content sub-unit frequencies indicated that the Marshallese community was the most significant factor in defining style, particularly cultural uniqueness, history, religion and generational differences. Collective pronouns indicated that acculturation anxieties stemmed from cultural differences and loss and were managed by asserting community affiliation. Personal style preferences reflected contextual and financial limitations. Process-type analysis constructed culture as the most vigorous actor and speaker, where youth roles included perception and cognition, with other islands’ views mediating between the two. Roles attributed to the media and the West included emoting and wanting, where China more closely resembled Marshallese youth, though the ubiquity of western content may render its agency somewhat invisible to Marshallese youth. Overall, Marshallese youth harmonize their individuality within attributed community and contextual factors. This is likely to be their preferred strategy when they emigrate to the United States, a highly individualistic country. Marshallese parents and second-generation Marshallese will require support, in their new context.


1996 ◽  
Vol 14 (4) ◽  
pp. 389-400 ◽  
Author(s):  
Stefan Kadelbach

On 4 December 1995, the European Commission of Human Rights dismissed a complaint filed by inhabitants of French Polynesia against the decision of the President of the French Republic to resume underground nuclear testing in the South Pacific. The case raises a series of issues regarding both substantive human rights law and procedural law which are of general interest for human rights litigation in cases of degradation of the environment. The decision misses the opportunity to elaborate on how to protect human fights against potentially harmful activities when the risk incurred is in dispute. Thus, it raises more questions than it answers.


Author(s):  
Sylvia Nickerson

In 1957, a small group of world-renown scientists gathered in Pugwash, Nova Scotia to discuss the growing threat of nuclear arms. Funded by industrialist Cyrus Eaton and spearheaded by philosopher Bertrand Russell and physicist Joseph Rotblat, this 1957 meeting founded an organization of scientists that believed they had a duty to speak out against escalating nuclear testing and what they saw as the irresponsible use of science. However, not every scientist felt that it was appropriate to take a public and political stand. This paper gives a brief history of the Pugwash movement and how its first meeting came to be held in Pugwash, Nova Scotia. The perspectives of involved scientists are examined, contrasting the attitudes of participants in the conference with the attitudes of scientists who declined a public role. This paper explores how scientists perceived their own responsibility to act, examining the willingness to use their cultural identity as scientists to lobby for a particular political position.


Geophysics ◽  
2007 ◽  
Vol 72 (3) ◽  
pp. B47-B57 ◽  
Author(s):  
Martyn Unsworth ◽  
Wolfgang Soyer ◽  
Volkan Tuncer ◽  
Anna Wagner ◽  
David Barnes

Amchitka Island, in Alaska, was used for underground nuclear testing from 1965 to 1971. Since the test program concluded, there have been concerns about the possible release of radionuclides into the marine environment of the Aleutian Islands. The hydrogeology of islands such as Amchitka is characterized by a layer of freshwater overlying a saltwater layer, with the salinity increasing across a transition zone (TZ). Hydrogeologic modeling can provide an estimate of the timing and amount of radionuclide release from the explosions beneath Amchitka Island. This modeling is inconclusive because of a lack of information regarding subsurface structure. To address this problem, magnetotelluric (MT) data were collected on Amchitka Island in 2004. Broadband MT data were recorded on profiles passing through three explosion sites to give information about subsurface porosity and salinity. A 2D MT inversion produced models of sub-surface electrical resistivity and showed a pattern of increasing, decreasing, and increasing resistivity with depth at each test site. The depth at which resistivity begins to decrease defines the top of the TZ. The deeper increase in resistivity approximates the base of the TZ. The depths of the top and bottom of the TZ were determined as follows: Cannikin 900–2500 m; Long Shot 600–1700 m; Milrow 900–1700 m. Uncertainties were estimated for these depths. Effective porosities were also estimated and ranged from 10%–20% at the surface to 1%–3% at 3-km depth. These porosities are higher than those assumed in several hydrogeologic models, and give longer transit times from the explosion to the marine environment. Subject to the limits of the analysis, it appears that each of the cavities resulting from underground nuclear explosions is located in the TZ from fresh to saltwater. This implies shorter transit times to the marine environment than if the detonations had been located in the saltwater layer.


Physics Today ◽  
1992 ◽  
Vol 45 (3) ◽  
pp. 95-96
Author(s):  
Frank Von Hippel ◽  
Sidney D. Drell

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