摘要:

Ronald Gordon Giovanelli, D.Sc. F.A.A., an eminent Australian scientist in the fields of physics and astronomy, died after a long illness on January 27, 1984, at the age of 69.After graduating from the University of Sydney, he spent 2 years (1937–1938) as a Research Fellow at the Commonwealth Solar Observatory (Mount Stromlo). It was here that he developed his life‐long interest in solar optical astronomy and the theory of solar active regi

ISSN:0002-8606    

DOI:10.1029/EO065i026p00409-01

年代:1984

数据来源: WILEY

摘要:

The summer of the year 1783 was an amazing and portentous one, and full of horrible phenomena; for besides the alarming meteors and tremendous thunder‐storms that affrighted and distressed the different counties of this kingdom, the peculiar haze, or smokey fog, that prevailed for many weeks in this island, and in every part of Europe, and even beyond its limits, was a most extraordinary appearance, unlike anything known within the memory of man. By my journal I find that I has notice this strange occurrence from June 23 to July 20 inclusive, during which period the wind varied to every quarter without making any alteration in the air. The sun, at noon, looked as blank as a clouded moon, and shed a rust‐coloured ferruginous light on the ground, and floors of rooms; but was particularly lurid and blood‐coloured at rising and setting. All the time the heat was so intense that butchers' meat could hardly be eaten on the day after it was killed; and the flies swarmed so in the lanes and hedges that they rendered the horses half frantic, and riding irksome. The country people began to look with a superstitious awe at the red, louring aspect of the sun; and indeed there was reason for the most enlightened person to be apprehensive; for all the while, Calabria and part of the isle of Sicily, were torn and convulsed with earthquakes; and about that juncture a volcano sprung out of the sea on the coast of Norway. On this occasion Milton's noble simile of the sun, in his first book ofParadise Lost, frequently occurred to my mind; and it is indeed particularly applicable, because, towards the end, it alludes to a superstitious kind of dread, with which the minds of men are always impressed by such strange and unusual phen

ISSN:0002-8606    

DOI:10.1029/EO065i026p00410-01

年代:1984

数据来源: WILEY

摘要:

The working group (W.G.) will address basic problems and unanswered questions in the realm of explosive volcanism and its products. Its primary functions are the organization of field and laboratory consortia, formal meetings, and the editing of special publications. Through these means we propose to stimulate research and communication on explosive volcanism.The W.G. has three main areas of interest: (1) pyroclastic deposits, including characterization, stratigraphy and tephrochronology; (2) eruption mechanisms nd eruption dynamics, including geochemical and geophysical studies, modeling of volcanic systems and depositional processes, and fluid dynamics (much of this work can be applied to volcanic hazard analysis); and (3) interaction of explosive eruptions and the atmosphere.

ISSN:0002-8606    

DOI:10.1029/EO065i026p00411

年代:1984

数据来源: WILEY

摘要:

Eosperiodically lists information on recently accepted doctoral dissertations in the disciplines of geophysics. Faculty members are invited to submit the following information, on institution letterhead, above the signature of the faculty advisor or department chairman: (1) the dissertation title, (2) author's name, (3) name of the degree‐granting department and institution, (4) faculty advisor, (5) month and year degree was awarde

ISSN:0002-8606    

DOI:10.1029/EO065i026p00412-01

年代:1984

数据来源: WILEY

摘要:

This volume is a report on a symposium on the role of water in urban ecology held in Amsterdam in August 1979. The second international environmental symposium of the Koninklijke Nederlandsche Heide Maatschappij (Royal Netherlands Land Development Society) was cosponsored by the International Association for Ecology (INTECOL) and Elsevier Scientific Publishing Company with proceedings published in a special edition of the journalUrban Ecology, volume 6, pp. 1–362, from which this volume is reprinte

ISSN:0002-8606    

DOI:10.1029/EO065i026p00413-01

年代:1984

数据来源: WILEY

摘要:

In considering the changes in the atmospheric concentration of carbon dioxide wrought by man's activities, it has been the practice to refer to some presumed value of concentration in the late 19th century as the “pre‐industrial” value. Implicit in many of these discussions has been the assumption that prior to the significant use of fossil fuels, the concentration was more or less constant about this value and that fossil fuels were the main reason for the recent departures from it. A value of about 290 parts per million by volume (ppmv) was usually selected as representative of the 19th century concentration. This value arose from a study byCallendar[1958], who examined a number of direct chemical measurements made then. If it is assumed that the fraction of fossil fuel produced CO2remaining in the air was the same from 1860 to 1958 as it evidently has been since 1958, when systematic measurements began at Mauna Loa Observatory, one calculates a value of about 295 ppmv for the late 19th ce

ISSN:0002-8606    

DOI:10.1029/EO065i026p00416

年代:1984

数据来源: WILEY

摘要:

On July 1, newly elected section and union officers will assume their roles as members of the Council. Each new section president‐elect will serve 2 years in that capacity, then 2 years as section president.These are the Council members who will serve through June 30, 198

ISSN:0002-8606    

DOI:10.1029/EO065i026p00418

年代:1984

数据来源: WILEY