摘要:

The behavior of editors is discussed. What should be covered by an abstract is considered. The importance of the abstract is described. Dictionary definitions of ‘abstract’ are quoted. At the conclusion a revised abstract is presen

ISSN:0002-8606    

DOI:10.1029/EO050i003p00074-01

年代:1969

数据来源: WILEY

摘要:

Changes in federal administration always bring with them questions of policy shifts affecting the sciences. Scientists have become deeply involved in such policies. They have energetically voiced opinions. The elders in the scientific establishment have almost unanimously advocated expansion in the various disciplines. The geophysical sciences have been no exception. A recent voice in this chorus has been the Commission on Marine Science, Engineering, and Resources. Most of the geophysical work in this country will receive considerable impetus if their recommendations are followed. We hope the new administration will move with foresight.

ISSN:0002-8606    

DOI:10.1029/EO050i003p00075

年代:1969

数据来源: WILEY

摘要:

The traditional hydrologic cycle is usually depicted as beginning with precipitation, with this in turn being acted upon by the landscape to produce a partial return to the atmosphere through evapotranspiration, and by the infiltration process which divides the remainder into surface runoff which returns to the sea, and into recharge which replenishes both the soil moisture and the ground water. The hydrologist has been concerned primarily with the terrestrial phases of this cycle, and therefore did not much concern himself with ocean evaporation or global circulation of the atmosphere.In this traditional context hydrology is very much a part of geophysics, and has particularly close ties with meteorology and oceanography. Hydrology still maintains its principal residence in geophysics, witness the Section of Hydrology in AGU and the International Association of Scientific Hydrology in the IUGG. In this association with geophysics, we have our home. Here we draw our scientific strength; here we talk to each other.

ISSN:0002-8606    

DOI:10.1029/EO050i003p00076

年代:1969

数据来源: WILEY

摘要:

The International Union of Geological Sciences (IUGS) was born in 1961, an offspring of the International Geological Congress (IGC) founded in 1878. IUGS was immediately accepted into the International Council of Scientific Unions (ICSU) and promptly became a working partner in a number of inter‐union and ICSU activities. It thereby achieved one of the goals that proponents of forming a union had hoped for: a plainly visible international organization through which scientists in many disciplines could communicate and collaborate with geological scientists.IGC had formed many international commissions and committees in the years between 1878 and 1960, but these were left pretty much to their own devices in financing and conducting their work. They were expected to justify their existence by the results they could present for the approval of the Congress, generally at four‐year intervals, but there was no permanent channel through which they could be reached. It was difficult for many non‐geologists to discover the IGC group with which they shared a common interest. The IGC commissions in existence in 1960 were all transferred to IUGS by 1968, except for two which became international associations affiliated with IUGS; the Union has also established some commissions and committees of its own since 1961. Those of importance to geophysicists are given

ISSN:0002-8606    

DOI:10.1029/EO050i003p00079

年代:1969

数据来源: WILEY

摘要:

A NATO Advanced Study Institute on Earthquake Displacement Fields and the Rotation of the Earth will be held at the University of Western Ontario, London, Canada, June 22–30, 1969. Open to scientists and graduate students in astronomy, geophysics, physics, and related disciplines, the Institute will focus upon some of the following subjects: current pole position and length of day measurements, deformation fields at teleseismic distances, precise measurements of the Earth's rotation by new methods, sources of excitation of the Chandler wobble, and possible applications to the prediction of earthquakes. Applications for assistance for travel and living expenses must be received by April 30, 196

ISSN:0002-8606    

DOI:10.1029/EO050i003p00081-01

年代:1969

数据来源: WILEY

ISSN:0002-8606    

DOI:10.1029/EO050i003p00082

年代:1969

数据来源: WILEY

摘要:

Although the primary orientation of the IHD program has been toward scientific research in hydrology, it has been recognized that attention must also be given to improving methods and criteria for the use of available information, as well as new research findings, in order to improve the efficiency of planning and design of water resource systems. The Corps of Engineers has long had a traditional and active interest in water resources development, and has been much concerned with problems of design criteria. The Corps has therefore undertaken this project, ‘Hydrologic Engineering Methods for Developing Project Design Criteria,’ as part of its contribution to the United States program for the IHD.Specifically, the purpose of the project is to develop, test, and document hydrologic engineering methods suitable for use in the planning and design of water resources systems, giving special attention to situations in which hydrologic records are deficient with respect to time, accuracy, or coverage. The major contribution of the project will be a report that, together with appropriate supplemental documents, will be devoted to procedures that are particularly useful in organizing and conducting hydrologic engineering studies and to the review of methods that are suitable for various analyses and computations. Basic principles, concepts, and suggested limits of applicability will be summarized to serve as general background in the description of methods and procedu

ISSN:0002-8606    

DOI:10.1029/EO050i003p00087

年代:1969

数据来源: WILEY