Monitoring the variability of precipitable water vapor over the Klang Valley, Malaysia during flash flood

Research output: Chapter in Book/Report/Conference proceedingConference contribution

3 Citations (Scopus)

Abstract

Klang Valley is a focal area of Malaysian economic and business activities where the local weather condition is very important to maintain its reputation. Heavy rainfalls for more than an hour were reported up to 40 mm in September 2013 and 35 mm in October 2013. Both events are monitored as the first and second cases of flash flood, respectively. Based on these cases, we investigate the water vapor, rainfall, surface meteorological data (surface pressure, relative humidity, and temperature) and river water level. The precipitable water vapor (PWV) derived from Global Positioning System (GPS) is used to indicate the impact of flash flood on the rainfall. We found that PWV was dropped 4 mm in 2 hours before rainfall reached to 40 mm and dropped 3 mm in 3 hours before 35 mm of rainfall in respective cases. Variation of PWV was higher in September case compared to October case of about 2 mm. We suggest the rainfall phenomena can disturb the GPS propagation and therefore, the impact of PWV before, during and after the flash flood event at three selected GPS stations in Klang Valley is investigated for possible mitigation in the future.

Original languageEnglish
Title of host publicationIOP Conference Series: Earth and Environmental Science
PublisherInstitute of Physics Publishing
Volume20
Edition1
DOIs
Publication statusPublished - 2014
Event7th IGRSM International Conference and Exhibition on Remote Sensing and GIS, IGRSM 2014 - Kuala Lumpur, Malaysia
Duration: 21 Apr 201422 Apr 2014

Other

Other7th IGRSM International Conference and Exhibition on Remote Sensing and GIS, IGRSM 2014
CountryMalaysia
CityKuala Lumpur
Period21/4/1422/4/14

Fingerprint

precipitable water
flash flood
water vapor
valley
rainfall
monitoring
GPS
surface pressure
economic activity
river water
relative humidity
water level
mitigation
temperature

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)
  • Environmental Science(all)

Cite this

Suparta, W., Rahman, R., & Jit Singh, M. S. (2014). Monitoring the variability of precipitable water vapor over the Klang Valley, Malaysia during flash flood. In IOP Conference Series: Earth and Environmental Science (1 ed., Vol. 20). [012057] Institute of Physics Publishing. https://doi.org/10.1088/1755-1315/20/1/012057

Monitoring the variability of precipitable water vapor over the Klang Valley, Malaysia during flash flood. / Suparta, Wayan; Rahman, R.; Jit Singh, Mandeep Singh.

IOP Conference Series: Earth and Environmental Science. Vol. 20 1. ed. Institute of Physics Publishing, 2014. 012057.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Suparta, W, Rahman, R & Jit Singh, MS 2014, Monitoring the variability of precipitable water vapor over the Klang Valley, Malaysia during flash flood. in IOP Conference Series: Earth and Environmental Science. 1 edn, vol. 20, 012057, Institute of Physics Publishing, 7th IGRSM International Conference and Exhibition on Remote Sensing and GIS, IGRSM 2014, Kuala Lumpur, Malaysia, 21/4/14. https://doi.org/10.1088/1755-1315/20/1/012057
Suparta W, Rahman R, Jit Singh MS. Monitoring the variability of precipitable water vapor over the Klang Valley, Malaysia during flash flood. In IOP Conference Series: Earth and Environmental Science. 1 ed. Vol. 20. Institute of Physics Publishing. 2014. 012057 https://doi.org/10.1088/1755-1315/20/1/012057
Suparta, Wayan ; Rahman, R. ; Jit Singh, Mandeep Singh. / Monitoring the variability of precipitable water vapor over the Klang Valley, Malaysia during flash flood. IOP Conference Series: Earth and Environmental Science. Vol. 20 1. ed. Institute of Physics Publishing, 2014.
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