Comparison of microtops ii ozonemeter and omi satellite total ozone column measurements in Manila, Philippines from Feb-Oct 2011

Francisco V. Moreno, Edgar A. Vallar, Maria Cecilia D. Galvez, Vernon R. Morris, Jerry R. Ziemke, Jean N. Rosete, Teresita A. Peralta

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

Abstract

Total ozone column (TOC) measurements were performed in De La Salle University, Manila, Philippines (14.71° N, 121.58° E) last February - October 2011 using a hand-held Microtops II Ozonemeter (MII). These are the first local measurements of total ozone column in the Philippines. The Microtops II instrument measures ozone at wavelengths 305.5, 312.5, and 320 nm. Measurements using the device were taken during midday (local noontime) and when the sun is clearly seen. Monthly averages were taken from February to October of 2011 in Manila, which is currently considered to be one of the most polluted cities in Asia. When compared to the total ozone column readings from the Ozone Monitoring Instrument (OMI) satellite, the Microtops II yielded a difference of ∼3-15%. The MII Ozone Spectrophotometer provided data of the TOC averaging 280.36 ± 15.13 Dobson units (DU) while OMI TOC data averaged at 262.23 ± 19.26 DU. Analyses have shown the importance of proper user training in the use of the MII instrument especially during the rainy season.

Original languageEnglish (US)
Title of host publication33rd Asian Conference on Remote Sensing 2012, ACRS 2012
Pages2060-2066
Number of pages7
StatePublished - 2012
Externally publishedYes
Event33rd Asian Conference on Remote Sensing 2012, ACRS 2012 - Pattaya, Thailand
Duration: Nov 26 2012Nov 30 2012

Publication series

Name33rd Asian Conference on Remote Sensing 2012, ACRS 2012
Volume3

Conference

Conference33rd Asian Conference on Remote Sensing 2012, ACRS 2012
CountryThailand
CityPattaya
Period11/26/1211/30/12

Keywords

  • Microtops
  • OMI
  • Philippines
  • Total ozone column

ASJC Scopus subject areas

  • Information Systems

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