91 research outputs found

    Lilium regale (Liliaceae) naturalizada en la Argentina y nuevos registros para Brasil austral

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    In this study Lilium regale (Liliaceae) is cited for the first time for Misiones, Argentina, where it occurs as a naturalized species, and new records for southern Brazil are added. The species description, synonymy, iconography, distribution, phenology, pollination, dispersal, vernacular names, uses, reference materials, and comments about its naturalization are included. A key to differentiate L. regale from L. longiflorum, the other naturalized Liliaceae in Argentina, is also presented.En este estudio se cita por primera vez a Lilium regale (Liliaceae) como especie naturalizada en Misiones, Argentina, y se suman nuevos registros para el sur de Brasil. Seincluye: descripción de la especie, sinonimia, iconografía, distribución, fenología, polinización, dispersión, nombres vernáculos, usos, materiales de referencia y comentarios sobre su naturalización. Además, se presenta una clave para diferenciar L. regale de L. longiflorum, la otra especie de Liliaceae naturalizada en la Argentin

    A radio continuum survey of the southern sky at 1420 MHz. Observations and data reduction

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    We describe the equipment, observational method and reduction procedure of an absolutely calibrated radio continuum survey of the South Celestial Hemisphere at a frequency of 1420 MHz. These observations cover the area 0h < R.A. < 24h for declinations less than -10 degree. The sensitivity is about 50 mK T_B (full beam brightness) and the angular resolution (HPBW) is 35.4', which matches the existing northern sky survey at the same frequency.Comment: 9 pages with 9 figures, A&A, in pres

    Improving the Gibraltar/Reykjavik NAO index

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    The longest instrumental index of the North Atlantic Oscillation (NAO) is based on pressure measurements from Gibraltar and Reykjavik. Recently two long pressure series from the town of Cádiz and the nearby San Fernando observatory in southern Spain have been digitized. As Gibraltar is situated within 100 kilometers from Cádiz and San Fernando, a long held suspicion that early pressure data from Gibraltar contains several problems can now be investigated. This leads to the creation of an improved version of the long NAO index in which the period from 1821 to 1856 has been revised
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