摘要:

Personnel at the National Space Science Data Center (NSSDC) and the Space Physics Analysis Network (SPAN) had the privilege of participating in an exciting adventure, namely the September 11, 1985, rendezvous of the International Cometary Explorer (ICE) spacecraft with Comet Giacobini‐Zinner (G‐Z). An incredible number of details must be worked out to ensure the success of an encounter mission, and extraordinary efforts on the part of many individuals become the norm rather than the exception. Tracking, communications, and a seemingly endless array of analysis computers must all function well together to provide near—real‐time data to the scientists, who are then asked to do near‐real‐time data analysis.There is much praise to be given to many organizations and individuals who participated in the various aspects of the encounter. However, in this report, we will concentrate only on the contributions of NSSDC and SPAN, both of which are bringing about a new space data systems environment, and both of which are being vastly improved for use by the space and earth science communities. The purpose of NSSDC is to serve as a centralized archive and distribution center for data obtained from National Aeronautics and Space Administration (NASA) space and earth science flight investigations and to perform a variety of services to enhance the scientific return from the initial NASA investment in these missions. SPAN is a mission‐independent computer‐to‐computer network that is used as a tool to gain electronic access to NASA facilities (such as NSSDC), coinvestigators, and data for several th

ISSN:0002-8606    

DOI:10.1029/EO067i009p00105-01

年代:1986

数据来源: WILEY

摘要:

There exists ample evidence supporting the link between ocean productivity and the intensity of upper ocean vertical motions [Thompson, 1981]. Where these motions increase the vertical transport of nutrients to the surface waters, regions of enhanced biological production often result. This relationship has been demonstrated quite clearly for one of the most highly productive regions of the world's ocean: the coastal upwelling zone along the western coast of South America. Investigations that relate changes in local winds, ocean circulation, and the vertical distribution of density and nutrients to the patterns of enhanced biological production have shown that relatively small changes in the physical environment have large consequences for the ecosystem [Barber and Smith, 1981;Smith et al., 1983].

ISSN:0002-8606    

DOI:10.1029/EO067i009p00106

年代:1986

数据来源: WILEY

摘要:

The word “global” is the “in” word in today's oceanography. We have already had “ecology” and “environment,” and perhaps even the recent “climate” buzz word giving way to the more general designation of “global.” We are faced with the Tropical Ocean and Global Atmosphere program (TOGA), the World Ocean Circulation Experiment (WOCE), and the Global Flux Experiment; AGU has entered the “global” stage with a new journal calledGlobal Biogeochemical Cycles(which covers it all), and there was the well‐attended Earth System Science: New Views and Plans symposium at the 1985 AGU Fall meeting in San Francisco, Calif., last December.Why all the interest in the global scale? It's safe to say that the important present concerns of the earth sciences, such as climate stability and the ocean's continued potential to absorb civilization's chemical wastes, are global issues and must be viewed in that context if we are to address them properly. Another factor is that for the first time, through satellite technology, we have the capability of gathering global scale data on a truly synoptic basis. So, as in the past, application of new technology allows us to define new horizons and address a new range of research questions. In addition to these factors, there is also the historical evolution of oceanography, which makes the global prospective partic

ISSN:0002-8606    

DOI:10.1029/EO067i009p00109

年代:1986

数据来源: WILEY

摘要:

The Ocean Sciences Award is presented by the Ocean Sciences Section of AGU to an individual who has made outstanding and long‐standing contributions to the ocean sciences. Previous recipients are Eugene C. LaFond 1982, Richard C. Vetter 1983, Robert E. Wall 1983, Fennan D. Jennings 1984, Wayne V. Burt 1984, W. Stanley Wilson 1984, Curtis A. Collins 1985.Nominations are solicited for candidates for the Ocean Sciences Award in 1986. Letters of nomination should be sent to Arnold L. Gordon, President‐Elect, Ocean Sciences Section, Lamont‐Doherty Geological Observatory, Palisades, NY 10964. The deadline for nominations is May 1, 1986. Nominations may be accompanied by seconding nominations and a resume of the cand

ISSN:0002-8606    

DOI:10.1029/EO067i009p00110-01

年代:1986

数据来源: WILEY

摘要:

January flows were average to well above average for about 75% of the nation's key index streams, but many flows had dropped sharply from the extremely wet conditions in December, according to the U.S. Geological Survey (USGS). USGS hydrologists said that record high flows for January were set at four stream sites in Wisconsin, Utah, Minnesota, and Alaska.Of the 174 key index stream‐gaging stations across the country, 31% (54 stations) reported well above average flows, 44% (76 stations) reported average flows, and 25% (44 stations) reported well below average flows. In both November and December, flows were average to well‐above average at about 90% of the same index stati

ISSN:0002-8606    

DOI:10.1029/EO067i009p00111-01

年代:1986

数据来源: WILEY

摘要:

Brasseur and Solomon correctly identify the title of their bookAeronomy of the Middle Atmosphereas somewhat obscure. In fact, many of the practitioners in the field would not identify themselves as aeronomers, and certainly the term “middle atmosphere” does not immediately register in every scientist's brain. Nevertheless, the middle atmosphere is a real and interesting place, and the aeronomy of that region is significant. There has been a virtual boom in the scientific study of this region, mostly because of the current concern with the maintenance of the stratospheric ozone layer and its possible perturbat

ISSN:0002-8606    

DOI:10.1029/EO067i009p00114-03

年代:1986

数据来源: WILEY

摘要:

This book is a compilation of three Environmental Protection Agency (EPA) reports written during the preceeding 2 years on trihalomethanes (THM's) in drinking water and compliance with the maximum contaminant level (MCL). The goal of this work, as set forth by the editor, is to “present guidance for planning changes in water treatment systems and various treatment approaches to the problem” of THM control. In this regard, one finds here a wealth of information on the current regulation, “best generally available treatment methods,” full‐scale experience on treatment modifications, anticipated costs of such modifications, and their impacts on the microbiological quality of the finished water. The final portion of the book also includes some very practical information on approved methods of THM sampling and

ISSN:0002-8606    

DOI:10.1029/EO067i009p00115

年代:1986

数据来源: WILEY

摘要:

Don L. Anderson, director of the Seismological Laboratory and professor of geophysics at the California Institute of Technology was chosen AGU President‐Elect, according to a report from the AGU Tellers Committee on the recent elections.The Tellers Committee report will be formally presented to the AGU Council at the Spring Meeting in Baltimore on May 20, 198

ISSN:0002-8606    

DOI:10.1029/EO067i009p00118-01

年代:1986

数据来源: WILEY