Short-term effects of gamma ray bursts on oceanic photosynthesis |
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Authors: | Liuba Peñate Osmel Martín Rolando Cárdenas Susana Agustí |
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Institution: | 1. Department of Biology, Universidad Central de Las Villas, Santa Clara, Cuba 2. Department of Physics, Universidad Central de Las Villas, Santa Clara, Cuba 3. Department of Global Change Research, Instituto Mediterráneo de Estudios Avanzados, CSIC-UIB, Esporlas, Mallorca, Spain
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Abstract: | We continue our previous work on the potential short-term influence of a gamma ray bursts on Earth’s biosphere, focusing on the only important short-term effect on life: the ultraviolet flash which occurs as a result of the retransmission of the γ radiation through the atmosphere. Thus, in this work we calculate the ultraviolet irradiances penetrating the first hundred meters of the water column, for Jerlov’s ocean water types I, II and III. Then we estimate the UV flash potential for photosynthesis inhibition in the whole photic zone, showing that it can be important in the first tens of meters of the water column. |
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