ISSN:0020-6024    

DOI:10.1080/02626667109493028

出版商:Taylor & Francis Group    

年代:1971

数据来源: Taylor

摘要:

Four natural conditions co-exist inherently with the hydraulic discharge of groundwater: positive gradient of the fluid potential, low relative topographic position, allochthonous water quality, and allochthonous water temperature. In turn, these conditions are consistently associated with springs, seepages, quicksand, soap holes, geysers, frost mounds, pingos, groundwater lakes and marshes, and certain near-surface and surface accumulations of salts, landslides, slumps, soil creep and gullying, which is considered as an indication that these features have one common generator: groundwater discharge. The above geomorphic and geologic phenomena are, therefore, interpreted as environmentally modified expressions of the hydraulic discharge of groundwater through topographically controlled gravity flow systems.

ISSN:0020-6024    

DOI:10.1080/02626667109493029

出版商:Taylor & Francis Group    

年代:1971

数据来源: Taylor

摘要:

Four geoelectrical soundings were measured with a combination of Schlumberger and azimuthal or equatorial dipole electrode arrays on a Carboniferous limestone basin of the Condroz area, Belgium. The measuring technique is briefly outlined as well as the interpretation procedure, which follows a closed-loop scheme with control of calculated model curves. Some general problems of interpretation of geoelectrical sounding curves are tackled, as far as they have a practical bearing on the treatment of Condroz soundings.

ISSN:0020-6024    

DOI:10.1080/02626667109493030

出版商:Taylor & Francis Group    

年代:1971

数据来源: Taylor

ISSN:0020-6024    

DOI:10.1080/02626667109493031

出版商:Taylor & Francis Group    

年代:1971

数据来源: Taylor

摘要:

To aid the elaboration of hydro-meteorological data by means of computers and at the same time to reduce to a minimum the work of the operator in obtaining such data, eliminating the perusal of diagrams and data extraction from them, a cartridge magnetic tape recorder has been built with a long recording run, low current consumption to permit battery operation, and above all with cost kept to a minimum to allow its installation as normal in the stations of a hydro-meteorological data gathering network.

ISSN:0020-6024    

DOI:10.1080/02626667109493032

出版商:Taylor & Francis Group    

年代:1971

数据来源: Taylor

摘要:

We have established by means of the multiple regression and correlation analysis the hydropluvial relations for yearly and monthly series, for 24 rivers and wadis in Israël. Inspite of the extremely weak annual flow coefficient of 1 to 5% of most of the streams under study, we have obtained highly successful coefficients of multiple correlations which vary, for most of the streams, between 0.96 and 0.99. Furthermore, on emplying the multiple regression approach we have established a regional model which explains the areal distribution of the mean annual precipitation, as a function of the climatic and morphologic factors. This model was established using 176 recording rainfall stations in Israël.

ISSN:0020-6024    

DOI:10.1080/02626667109493033

出版商:Taylor & Francis Group    

年代:1971

数据来源: Taylor

摘要:

The purpose of this study was the development of a technique for rapid detection of the occurrence of a suspected hydrologic change in high mountain watersheds. A method has been developed that uses a sequence of independent daily flows. This procedure is superior to previous ones based on seasonal or yearly flows. The results of this investigation show the use of daily, instead of seasonal flow, data in a Student t-test reduces the number of necessary years of data for detection by an average of five in 14 out of the 20 cases studied, or by an average of three for the 20 cases. All of the cases come from the Upper Colorado River Basin. The statistical procedure of detection relies on the Target Control concept and the application of a conditional Student t-test, a test of the difference between the adjusted means obtained by the regression lines between Target and Control for the seeded and non-seeded periods.

ISSN:0020-6024    

DOI:10.1080/02626667109493034

出版商:Taylor & Francis Group    

年代:1971

数据来源: Taylor

ISSN:0020-6024    

DOI:10.1080/02626667109493035

出版商:Taylor & Francis Group    

年代:1971

数据来源: Taylor

ISSN:0020-6024    

DOI:10.1080/02626667109493036

出版商:Taylor & Francis Group    

年代:1971

数据来源: Taylor

ISSN:0020-6024    

DOI:10.1080/02626667109493037

出版商:Taylor & Francis Group    

年代:1971

数据来源: Taylor