Geospatial analysis of surface hydrological parameters for Kyushu Island, Japan

Mohammad Shehata, Hideki Mizunaga

Research output: Contribution to journalArticle

Abstract

Defining the surface hydrological parameters represents a crucial factor for the sustainable development purposes. In areas with heavy precipitation and rugged topography, these parameters control the occurrence of some natural hazards, from which the flash flood gets the most attention. Traditional methods for the assessment of the surface hydrological parameters are costly, time-consuming and provide information for limited geographic extent. On the other hand, remotely sensed data provide a cost-effective, rapid and wide aerial coverage with adequate accuracy. Geospatial analysis of these remotely sensed data provides a suitable and effective method for the reconnaissance determination of the surface hydrological parameters. In this work, digital elevation models, Landsat 8 satellite images as well as digital maps of soil and land use for Kyushu Island were acquired and analyzed using geographic information system. Surface hydrological parameters were determined in terms of watershed boundaries, soil moisture, initial abstraction as well as flash flood potentiality. Results of this research show a great correlation with historical flash flood events that occurred in the island. The northern parts of the island are subjected to the threat of flash floods. A follow-up is recommended in some areas on the island. As a conclusion, the geospatial analysis performs an accurate reconnaissance method for hydrological analysis at regional scale, which in turn guides the detailed field observation saving time and cost.

Original languageEnglish
Pages (from-to)33-52
Number of pages20
JournalNatural Hazards
Volume96
Issue number1
DOIs
Publication statusPublished - Mar 15 2019

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flash flood
digital map
natural hazard
cost
Landsat
digital elevation model
sustainable development
soil moisture
analysis
parameter
topography
watershed
land use
method

All Science Journal Classification (ASJC) codes

  • Water Science and Technology
  • Atmospheric Science
  • Earth and Planetary Sciences (miscellaneous)

Cite this

Geospatial analysis of surface hydrological parameters for Kyushu Island, Japan. / Shehata, Mohammad; Mizunaga, Hideki.

In: Natural Hazards, Vol. 96, No. 1, 15.03.2019, p. 33-52.

Research output: Contribution to journalArticle

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