ISSN:0020-6024    

DOI:10.1080/02626666009493174

出版商:Taylor & Francis Group    

年代:1960

数据来源: Taylor

摘要:

This study was made to define the relation between floods in a humid region and the causative factors that account for their variability. The study covered the basic relationships between peak discharges and hydrologic factors as well as the practical working methods for generalizing the results on a regional basis. Statistical multiple-correlation techniques were applied to hydrologic data in New England. A field and library investigation of historical flood data extended the period of flood knowledge to as much as 300 years. The relation of many topographic and climatic factors to flood peaks was tested. Flood peaks with recurrence intervals at 9 levels, from 1.2 to 300 years, were related to 6 independent variables, 3 of which are topographic, 2 climatic, and 1 orographic.

ISSN:0020-6024    

DOI:10.1080/02626666009493175

出版商:Taylor & Francis Group    

年代:1960

数据来源: Taylor

摘要:

A method is presented for using point mean precipitation data to estimate areal values in regions of high relief. Variation of precipitation with altitude is determined. Local anomalies from this relationship are mapped, and lines of equal anomaly are drawn. By use of the mean relation corrected for the local anomaly, the mean precipitation at any point can be determined and an isohyetal map drawn. A similar approach can be used to determine mean temperature for studies of snowmelt or of potential evapotranspiration.

ISSN:0020-6024    

DOI:10.1080/02626666009493176

出版商:Taylor & Francis Group    

年代:1960

数据来源: Taylor

ISSN:0020-6024    

DOI:10.1080/02626666009493177

出版商:Taylor & Francis Group    

年代:1960

数据来源: Taylor

摘要:

By means of the energy-budget method, measurements of evaporation losses from four reservoirs on Salt River, Ariz., were determined to range from 57.5 to 69.9 inches for the 12-month period April 1958 to March 1959. Water is withdrawn from Roosevelt Lake at considerable depth and released through three run-of-the-river reservoirs. Because the water released from Roosevelt Lake is cold, evaporation losses from the downstream reservoirs are considerably lower than those from Roosevelt Lake. Evaporation pan coefficients computed for the various reservoirs ranged from 0.53 to 0.65. A base evaporation rate was computed for each reservoir as the evaporation rate that would have occurred had there been no change in energy storage and the net advected energy equalled zero during the year.

ISSN:0020-6024    

DOI:10.1080/02626666009493178

出版商:Taylor & Francis Group    

年代:1960

数据来源: Taylor

摘要:

Chemical equilibrium in water in contact with calcite is expressed by means of a pH grid overlay on a log-log plot of activities of bicarbonate vs. calcium ions. Solubility of ferrous iron and the solid-phase minerals that would be stable in a solution containing activities of 10 ppm of sulfate and 100 ppm of bicarbonate or related species is expressed by means of a stability-field diagram with pH as abscissa and redox potential as ordinate.

ISSN:0020-6024    

DOI:10.1080/02626666009493179

出版商:Taylor & Francis Group    

年代:1960

数据来源: Taylor

摘要:

Variation in surface elevations of the Nisqually Glacier has been recorded since 1942 by the annual measurement of three profiles across the glacier, designated as nos. 1, 2, and 3, located 0.5, 1.0, and 1.7 miles respectively from the terminus, at approximate mean elevations of 5,250,6,000, and 6,800 feet. A fourth profile, 2-A, located 1.4 miles from the terminus at an approximate mean elevation of 6,450 was measured from 1948 to 1954. These profiles cross the glacier approximately normal to the direction of flow. Additional data are available from measurements made at profiles no. 1 and no. 2 in 1931, 1932 and 1941. The results of these measurements show that a wave or surge has been moving down the glacier.

ISSN:0020-6024    

DOI:10.1080/02626666009493180

出版商:Taylor & Francis Group    

年代:1960

数据来源: Taylor

ISSN:0020-6024    

DOI:10.1080/02626666009493181

出版商:Taylor & Francis Group    

年代:1960

数据来源: Taylor

ISSN:0020-6024    

DOI:10.1080/02626666009493182

出版商:Taylor & Francis Group    

年代:1960

数据来源: Taylor

ISSN:0020-6024    

DOI:10.1080/02626666009493183

出版商:Taylor & Francis Group    

年代:1960

数据来源: Taylor