摘要:

Since snow, rainfall, and glaciers constitute the raw material of much of the Section of Hydrology, and runoff and floods are their results, the Committee on Snow has sought membership from all of these overlapping fields to attain breadth of understanding and the spirit of cooperation. To share the benefits of international cooperation, representatives from Canada have been requested to accept membership. Because of the present pioneer stage of snow‐surveying and the Committee's opportunity to foster its development, representation has also been sought for various watersheds where stream‐development is increasing the public interest in snow.In the following list of members of the Committee the sphere or locality of special interest of each member is represented in parenthesis. The asterisk (*) after names indicates cooperating memb

ISSN:0002-8606    

DOI:10.1029/TR018i002p00269

年代:1937

数据来源: WILEY

摘要:

The Committee was enlarged during the past year by one more member, Prof. J. E. Church of Reno, Nevada, Chairman of the Committee on Snow, who agreed to serve on it while the Chairman of the Committee on Glaciers in turn accepted membership on the Committee on Snow. Thus the two Committees, whose spheres of work are in some respects intimately related, have been brought into closer touch with each other.Although the Committee on Glaciers has assembled considerable data on different lines of glaciologic research during the past few years, it seems best to confine this report, like the preceding ones, to a record of the variations—advance or recession—of glaciers in the continental United States and Alaska, and to reserve the other data for presentation later, in separate papers. The variations of glaciers here reported are for the 12‐month period from the autumn of 1935 to the autumn of

ISSN:0002-8606    

DOI:10.1029/TR018i002p00293

年代:1937

数据来源: WILEY

摘要:

The membership of the Committee for this year is as follows:Harry F. Blaney, 600 Federal Building, Los Angeles, CaliforniaN. W. Cummings, San Bernardino Valley Junior College, San Bernardino, CaliforniaRobert Follansbee, 403 New Post Office, Denver, ColoradoJ. A. Folse, Museum of Science and Industry, 56th Street and Lake Michigan, Chicago, IllinoisRobert E. Horton, Voorheesville, New YorkIvan E. Houk, 1024 U.S. National Bank Building, Denver, ColoradoR. E. Kennedy, 1577 Jasmine Street, Denver, ColoradoG. F. McEwen, Scripps Institution of Oceanography, La Jolla, CaliforniaCarl Rohwer, Colorado State College, Fort Collins, ColoradoC. M. Saville, 53 North Beacon Street, Hartford, ConnecticutThorndike Saville, New York University, University Heights, New YorkS. T. Harding, 12 Engineering Building, Berkeley, California, ChairmanMessrs. Follansbee, Folse, Horton, and Houk are new members who accepted appointment on the Committee in 1936.The Committee has been working on the chapter on Evaporation from Free‐Water Surfaces for the proposed Bulletin on Hydrology in the Physics‐of‐the‐Earth Series of the National Research Council. The Chairman of the Committee had been asked to prepare such a chapter and has sought the assistance of the members of the Committee in its preparation. A first draft was sent to the members of the Committee in December, 1936, with a request for criticism. Several carefully prepared and helpful reviews of this draft as well as discussion of the subject of evaporation were received from members of the Committee. A second draft, condensed to the length allotted in the Bulletin for this chapter, is nearly completed. If time permits, it will also be sent to the Committee members for further comment. This work has been the only direct activity of the Committee during t

ISSN:0002-8606    

DOI:10.1029/TR018i002p00299

年代:1937

数据来源: WILEY

摘要:

The current year has been one of great activity in the field of hydrology. This its true not alone of experimental work, but to an even greater extent in the practical application of known facts and principles. Demand for the latter has arisen throughout the United States in the numerous public and semi‐public projects which have been initiated in recent years. Many of these projects involve the conservation and use of water, the protection and prevention from floods, and the disturbing effects which large improvements often have upon the natural hydrologic balances. As a practical result of this activity, little time has been available for writing of papers and work of the Committe

ISSN:0002-8606    

DOI:10.1029/TR018i002p00300

年代:1937

数据来源: WILEY

摘要:

Since the last meeting of the Section of Hydrology there has been a change in the organization and membership of some of the research‐committees, one relating to rainfall, of which Merrill Bernard is Chairman, and one relating to runoff, were created to replace the one committee which had functioned heretofore on both rainfall and runoff. This action by the officers provides for greater participation of the members of the Section in committees, and is a step well worth while. The personnel of the Committee as of May 1, 1937, is as follows:H. K. Barrows R. W. Davenport I. E. Houk F. T. Mavis F. F. SnyderM. M. Bernard R. S. Goodridge W. G. Hoyt A. F. Meyer H. C. TroxellE. S. Cullings R. E. Horton Joseph Jacobs C. R. Pettis C. O. WislerI consider it an honor to act as Chairman of the Committee on Runoff but regret, however, that I have been unable as yet to coordinate thoroughly the work of the Committee or to inform myself adequately on many runoff‐experiments and research‐problems. Consequently, my report will be very brief and inf

ISSN:0002-8606    

DOI:10.1029/TR018i002p00301

年代:1937

数据来源: WILEY

摘要:

The annual report of the Committee is intended to be a symposium on the subject of soil‐moisture. The nucleus of the report is a paper prepared by the Chairman and N. E. Edlefsen of the Committee. The paper was written for the purpose of broadly reviewing the field and to stimulate discussion. It was sent to the members of the Committee and to a selected list of investigators who have shown interest in the subject with a request for comments, opinions, or criticisms. The replies follow tne paper and are published verbati

ISSN:0002-8606    

DOI:10.1029/TR018i002p00302

年代:1937

数据来源: WILEY

摘要:

In accordance with the by‐laws of the Section, the Committee on Underground Waters has been reconstituted during the past year. With their research interests turning to other subjects, several members have dropped out, and four new men have been appointed. In order to maintain contact with the work of related committees, Charles H. Lee, Chairman of the Committee on Absorption and Transpiration, and C. S. Howard, Chairman of the Committee on Cnemistry of Natural Waters, have become members of the Committee on Underground Waters. The personnel of the Committee is as follows: H. F. Blaney C. S. Howard M. M. Leighton H. E. Simpson G. M. Fair F. H. Lahee O. E. Meinzer A. C. Swinnerton Willard Gardner C. H. Lee A. M. Piper D. G. Thompson, Chairma

ISSN:0002-8606    

DOI:10.1029/TR018i002p00318

年代:1937

数据来源: WILEY

摘要:

In the following list, brief‐statements have been added to certain references to call attention to special phases of ground‐water problems which are not apparent from the titles. Abstracts of most of the papers have been or will be published in the Annotated Bibliography of Economic Geol

ISSN:0002-8606    

DOI:10.1029/TR018i002p00325

年代:1937

数据来源: WILEY

摘要:

It may be well at this time to review briefly the field of study of the Committee on Dynamics of Streams. The Committee is concerned with the flow of water in rivers and smaller streams, the forces which the water exerts, the work which it does in erosion, transportation and deposition, and the relation between the streams and the channels they occupy. It is also concerned with the dynamics of rain‐ and surface‐waters in soil‐erosion.Research in the field, laboratory, and by means of analytical mechanics is being pursued and fostered by the Committee in order that the investigations might be as comprehensive as possible. The Committee is interested in the accumulation of scientific data as such, but also with a view to the utilization of these data in practical problems. Thus, an attempt to define the natural laws governing the transportation of sediment by streams is a specific aim, but the formulation of this new information so that it may be used in the design of river regulation‐works is likewise an important consid

ISSN:0002-8606    

DOI:10.1029/TR018i002p00329

年代:1937

数据来源: WILEY

摘要:

The membership of this Committee is as follows: C. S. Howard, Chairman, U. S. Geological Survey, Washington, D.C.D. G. Thompson, U. S. Geological Survey, Washington, D.C.A. C. Lane, 22 Arlington Street, Cambridge, MassachusettsC. S. Scofield, Bureau of Plant Industry, U. S. Dept. Agri., Washington, D. C.I. A. Denison, U.S. Bureau of Standards, Washington, D.C.T. G. Thompson, University of Washington, Seattle, WashingtonW. P. Kelley, Citrus Experiment Station, Riverside, CaliforniaIn order to provide for close cooperation between the work of the different research‐committees of the American Geophysical Union it was decided to have the chairmen of certain committees serve on other committees. The Chairman of the Committee on the Chemistry of Natural Waters is serving on the Committee of Underground waters and D. G. Thompson as Chairman of the Committee on Underground Waters is serving on the Committee on Chemistry of Natural Water

ISSN:0002-8606    

DOI:10.1029/TR018i002p00342

年代:1937

数据来源: WILEY