ISOCHRONES MAPPING METHODS IN TIME-AREA ROUTING TECHNIQUE

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SHOKOOHI A.; SAGHAFIAN B.

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Journal: IRAN-WATER RESOURCES RESEARCH Year:2007 | Volume:2 | Issue:3 Page(s): 39-50

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Title

ISOCHRONES MAPPING METHODS IN TIME-AREA ROUTING TECHNIQUE

Author(s)

SHOKOOHI A. | SAGHAFIAN B. | Issue Writer Certificate

Keywords

TIME-AREAQ4

ISOCHRONES MAPPINGQ4

KINEMATICS WAVEQ3

TIME TO EQUILIBRIUMQ4

TRAVEL LENGTHQ4

Abstract

The Time–Area method is a suitable technique for watershed routing and can be potentially used as a distributed model. As an advantage, it can also be used as a GIS-based method. The performance of the existing methods for deriving isochrone locations is compared in this study with that of the kinematic wave theorem. In most methods, travel time is proportional to the distance-to-outlet of any point raised to a power. Investigating the numerical value of powers, it is shown that exponent 1.5 of Laurenson's method yields the closest TIME-AREA hydrograph to that of the kinematic wave solution. Therefore, this paper showed that certain empirical isochrone delineation methods could be applicable provided that the TRAVEL LENGTH is measured towards the outlet.

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APA: Copy

SHOKOOHI, A., & SAGHAFIAN, B.. (2007). ISOCHRONES MAPPING METHODS IN TIME-AREA ROUTING TECHNIQUE. IRAN-WATER RESOURCES RESEARCH, 2(3), 39-50. SID. https://sid.ir/paper/99876/en

Vancouver: Copy

SHOKOOHI A., SAGHAFIAN B.. ISOCHRONES MAPPING METHODS IN TIME-AREA ROUTING TECHNIQUE. IRAN-WATER RESOURCES RESEARCH[Internet]. 2007;2(3):39-50. Available from: https://sid.ir/paper/99876/en

IEEE: Copy

A. SHOKOOHI, and B. SAGHAFIAN, “ISOCHRONES MAPPING METHODS IN TIME-AREA ROUTING TECHNIQUE,” IRAN-WATER RESOURCES RESEARCH, vol. 2, no. 3, pp. 39–50, 2007, [Online]. Available: https://sid.ir/paper/99876/en

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