摘要:

The drought of 1988 had widespread impacts in the midwestern United States. Crop yields were reduced significantly. Barge traffic on the Mississippi, Missouri and Ohio rivers was severely disrupted. Municipal water supplies in some communities were reduced to critically low levels. In the face of these and other serious impacts, it is worthwhile to examine the climatological severity of this drought. For instance, was this drought comparable to the worst droughts in this century, as was frequently stated in news reports? Or, alternatively, were these serious impacts at least partially the result of a lack of flexibility in our socioeconomic system and in the experience of decision makers to adapt to serious drought?

ISSN:0002-8606    

DOI:10.1029/89EO00268

年代:1989

数据来源: WILEY

摘要:

Oceanic general circulation models must parameterize the effect of subgrid‐scale motions and generally do so with diffusion terms. The following questions then arise:• do oceanic observations allow inferences about mixing and diffusion coefficients?—if so, • how do “observed” coefficients compare with those used in numerical models? • can mixing rates be predicted from an understanding of the processes involved? and finally • does it matter? Are the results of numerical models sensitive to the choice of the diffusi

ISSN:0002-8606    

DOI:10.1029/89EO00269

年代:1989

数据来源: WILEY

摘要:

The 1989 American Institute of Physics Science Writing Award in Physics and Astronomy has been given to Mark Littmann for his book,Planets Beyond: Discovering the Outer Solar System,published by John Wiley&Sons. The prize is awarded annually for exceptional writing about physics and astronomy.Littmann, president of Starmaster Corporation, an educational publications company, has also written the bookletReference Guide for the Solar System Wall Chartand coauthoredComet Halley: Once in a Lifetime.In addition, he has written, produced, and directed several planetarium theater programs. Littmann currently is a visiting astronomy professor at Loyola College, Baltimore, Md.

ISSN:0002-8606    

DOI:10.1029/89EO00273

年代:1989

数据来源: WILEY

摘要:

Thank you, Mr. President, for the opportunity to be here at the AGU Spring Meeting to present this award.Walter Seager Sullivan, Jr., is listed inCurrent Biographyas “born 1918, journalist.” This is like listing Arnold Palmer as a “golfer;” it is true, but it misses th

ISSN:0002-8606    

DOI:10.1029/89EO00276

年代:1989

数据来源: WILEY