The impact rate on Earth.
Philos Trans A Math Phys Eng Sci
; 363(1837): 2793-810, 2005 Dec 15.
Article
em En
| MEDLINE
| ID: mdl-16286291
ABSTRACT
Recent data, and modelling of the interaction between asteroids and the atmosphere, has defined a complete size-frequency distribution for terrestrial impactors, from meteorite-sized objects up to kilometre-sized asteroids, for both the upper atmosphere and the Earth's surface. Although there remain significant uncertainties in the incidence of specific size-fractions of impactors, these estimates allow us to constrain the threat posed by impacts to human populations. It is clear that impacts remain a significant natural hazard, but uniquely, they are a threat that we can accurately predict, and take steps to avoid.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Modelos de Riscos Proporcionais
/
Medição de Risco
/
Planeta Terra
/
Meteoroides
/
Desastres
/
Geologia
/
Modelos Teóricos
Tipo de estudo:
Etiology_studies
/
Prognostic_studies
/
Risk_factors_studies
Idioma:
En
Revista:
Philos Trans A Math Phys Eng Sci
Ano de publicação:
2005
Tipo de documento:
Article