Velazco, Voltaire A. Dr. rer. nat.

Selected Publications

• Journal Article

  Year	Title
  2020	Bias Correction of the Ratio of Total Column CH4 to CO2 Retrieved from GOSAT Spectra Published In Remote Sensing Volume 12 Pages 3155-1 - 3155-29 ISSN 2072-4292 Altmetric
  2020	Characterizing model errors in chemical transport modeling of methane: impact of model resolution in versions v9-02 of GEOS-Chem and v35j of its adjoint model Published In Geoscientific Model Development Volume 13 Pages 3839 - 3862 ISSN 1991-959X Altmetric
  2020	Ensemble-based satellite-derived carbon dioxide and methane column-averaged dry-air mole fraction data sets (2003–2018) for carbon and climate applications Published In Atmospheric Measurement Techniques Volume 13 Pages 789 - 819 ISSN 1867-1381 Altmetric
  2020	Improved Constraints on Northern Extratropical CO2 Fluxes Obtained by Combining Surface-Based and Space-Based Atmospheric CO2 Measurements Published In Journal of Geophysical Research: Atmospheres Volume 125 Page p. e2019JD032029 Altmetric
  2020	Observed Hemispheric Asymmetry in Stratospheric Transport Trends From 1994 to 2018 Published In Geophysical Research Letters Volume 47 Altmetric
  2020	Spectral sizing of a coarse-spectral-resolution satellite sensor for XCO2 Published In Atmospheric Measurement Techniques Volume 13 Pages 731 - 745 ISSN 1867-1381 Altmetric
  2020	Validation of Carbon Trace Gas Profile Retrievals from the NOAA-Unique Combined Atmospheric Processing System for the Cross-Track Infrared Sounder Published In Remote Sensing Volume 12 Pages 3245-1 - 3245-29 ISSN 2072-4292 Altmetric
  2020	Validation of XCO2 and XCH4 retrieved from a portable Fourier transform spectrometer with those from in situ profiles from aircraft-borne instruments Published In Atmospheric Measurement Techniques Volume 13 Pages 5149 - 5163 ISSN 1867-1381 Altmetric
  2019	A scientific algorithm to simultaneously retrieve carbon monoxide and methane from TROPOMI onboard Sentinel-5 Precursor Published In Atmospheric Measurement Techniques Volume 12 Pages 6771 - 6802 Altmetric
  2019	Evaluation and Analysis of the Seasonal Cycle and Variability of the Trend from GOSAT Methane Retrievals Published In Remote Sensing Volume 11 Pages 882-1 - 882-31 ISSN 2072-4292 Altmetric
  2019	Evaluation of Bias Correction Methods for GOSAT SWIR XH2O Using TCCON data Published In Remote Sensing Volume 11 Pages 290-1 - 290-25 ISSN 2072-4292 Altmetric
  2019	Evaluation of MOPITT Version 7 joint TIR-NIR XCO retrievals with TCCON Published In Atmospheric Measurement Techniques Volume 12 Pages 5547 - 5572 ISSN 1867-1381 Altmetric
  2019	Long-range transport of aerosols from East and Southeast Asia to northern Philippines and its direct radiative forcing effect Published In Atmospheric Environment Volume 218 Pages 117007-1 - 117007-10 ISSN 1352-2310 Altmetric
  2019	Regional CO emission estimated from ground-based remote sensing at Hefei site, China Published In Atmospheric Research Volume 222 Pages 25 - 35 ISSN 0169-8095 Altmetric
  2019	Satellite and ground-based measurements of XCO2 in a remote semiarid region of Australia Published In Earth System Science Data Volume 11 Pages 935 - 946 Altmetric
  2019	TCCON and NDACC XCO measurements: difference, discussion and application Published In Atmospheric Measurement Techniques Volume 12 Pages 5979 - 5995 ISSN 1867-1381 Altmetric
  2018	Characteristics of greenhouse gas concentrations derived from ground-based FTS spectra at Anmyeondo, South Korea Published In Atmospheric Measurement Techniques Volume 11 Pages 2361 - 2374 ISSN 1867-1381 Altmetric
  2018	Improved retrievals of carbon dioxide from Orbiting Carbon Observatory-2 with the version 8 ACOS algorithm Published In Atmospheric Measurement Techniques Volume 11 Pages 6539 - 6576 ISSN 1867-1381 Altmetric
  2017	Comparisons of the Orbiting Carbon Observatory-2 (OCO-2) XCO2 measurements with TCCON Published In Atmospheric Measurement Techniques Volume 10 Pages 2209 - 2238 ISSN 1867-1381 Altmetric
  2017	Contributions of the troposphere and stratosphere to CH4 model biases Published In Atmospheric Chemistry and Physics Volume 17 Pages 13283 - 13295 ISSN 1680-7316 Altmetric
  2017	EOF-based regression algorithm for the fast retrieval of atmospheric CO2 total column amount from the GOSAT observations Published In Journal of Quantitative Spectroscopy and Radiative Transfer Volume 189 Pages 258 - 266 ISSN 0022-4073 Altmetric
  2017	Global land mapping of satellite-observed CO2 total columns using spatio-temporal geostatistics Published In International Journal of Digital Earth: a new journal for a new vision Volume 10 Pages 426 - 456 ISSN 1753-8947 Altmetric
  2017	Investigating the performance of a greenhouse gas observatory in Hefei, China Published In Atmospheric Measurement Techniques Volume 10 Pages 2627 - 2643 ISSN 1867-1381 Altmetric
  2017	Study of the footprints of short-term variation in XCO2 observed by TCCON sites using NIES and FLEXPART atmospheric transport models Published In Atmospheric Chemistry and Physics Volume 17 Pages 143 - 157 ISSN 1680-7316 Altmetric
  2017	TCCON Philippines: First Measurement Results, Satellite Data and Model Comparisons in Southeast Asia Published In Remote Sensing Volume 9 Pages 1228-1 - 1228-18 ISSN 2072-4292 Altmetric
  2017	The MUMBA campaign: measurements of urban, marine and biogenic air Published In Earth System Science Data Volume 9 Pages 349 - 362 Altmetric
  2017	The Orbiting Carbon Observatory (OCO-2) tracks 2-3 peta-gram increase in carbon release to the atmosphere during the 2014-2016 El Niño Published In Scientific Reports Volume 7 Pages 13567-1 - 13567-12 ISSN 2045-2322 Altmetric
  2017	Total Carbon Column Observing Network Philippines: toward quantifying atmospheric carbon in Southeast Asia Published In Climate, Disaster and Development Journal Volume 2 Pages 1 - 12 Altmetric
  2017	Validation of GOSAT SWIR XCO2 and XCH4 Retrieved by PPDF-S Method and Comparison with Full Physics Method Published In SOLA : Scientific Online Letters on the Atmosphere Volume 13 Pages 168 - 173 Altmetric
  2016	Ability of the 4-D-Var analysis of the GOSAT BESD XCO2 retrievals to characterize atmospheric CO2 at large and synoptic scales Published In Atmospheric Chemistry and Physics Volume 16 Pages 1653 - 1671 ISSN 1680-7316 Altmetric
  2016	Bias corrections of GOSAT SWIR XCO2 and XCH4 with TCCON data and their evaluation using aircraft measurement data Published In Atmospheric Measurement Techniques Volume 9 Pages 3491 - 3512 ISSN 1867-1381 Altmetric
  2016	Comparison of XH2O Retrieved from GOSAT short-wavelength infrared spectra with observations from the TCCON network Published In Remote Sensing Volume 8 Page p. 414 ISSN 2072-4292 Altmetric
  2016	Validation of TANSO-FTS/GOSAT XCO2 and XCH4 glint mode retrievals using TCCON data from near-ocean sites Published In Atmospheric Measurement Techniques Volume 9 Pages 1415 - 1430 ISSN 1867-1381 Altmetric
  2015	Assessing 5 years of GOSAT Proxy XCH4 data and associated uncertainties Published In Atmospheric Measurement Techniques Volume 8 Pages 4785 - 4801 ISSN 1867-1381 Altmetric
  2015	Consistent satellite XCO2 retrievals from SCIAMACHY and GOSAT using the BESD algorithm Published In Atmospheric Measurement Techniques Volume 8 Pages 2961 - 2980 ISSN 1867-1381 Altmetric
  2015	Estimating global and North American methane emissions with high spatial resolution using GOSAT satellite data Published In Atmospheric Chemistry and Physics Volume 15 Pages 7049 - 7069 ISSN 1680-7316 Altmetric
  2015	Mapping spectroscopic uncertainties into prospective methane retrieval errors from Sentinel-5 and its precursor Published In Atmospheric Measurement Techniques Volume 8 Pages 3617 - 3629 ISSN 1867-1381 Altmetric
  2015	Using XCO2 retrievals for assessing the long-term consistency of NDACC/FTIR data sets Published In Atmospheric Measurement Techniques Volume 8 Pages 1555 - 1573 ISSN 1867-1381 Altmetric
  2015	Validation of SCIAMACHY HDO/H2O measurements using the TCCON and NDACC-MUSICA networks Published In Atmospheric Measurement Techniques Volume 8 Pages 1799 - 1818 ISSN 1867-1381 Altmetric
  2014	Drivers of column-average CO2 variability at Southern Hemispheric Total Carbon Column Observing Network sites Published In Atmospheric Chemistry and Physics Volume 14 Pages 9883 - 9901 ISSN 1680-7316 Altmetric
  2014	Factors influencing surface CO2 variations in LPRU, Thailand and IESM, Philippines Published In Environmental Pollution Volume 195 Pages 282 - 291 ISSN 0269-7491 Altmetric
  2013	Simultaneous retrieval of atmospheric CO2 and light path modification from space-based spectroscopic observations of greenhouse gases: Methodology and application to GOSAT measurements over TCCON sites Published In Applied Optics Volume 52 Pages 1339 - 1350 ISSN 1559-128X Altmetric
  2012	Atmospheric greenhouse gases retrieved from SCIAMACHY: comparison to ground-based FTS measurements and model results Published In Atmospheric Chemistry and Physics Volume 12 Pages 1527 - 1540 ISSN 1680-7316 Altmetric
  2012	SCIAMACHY WFM-DOAS XCO2: comparison with CarbonTracker XCO2 focusing on aerosols and thin clouds Published In Atmospheric Measurement Techniques Volume 5 Pages 1935 - 1952 ISSN 1867-1381 Altmetric
  2011	Retrieval of atmospheric CO2 with enhanced accuracy and precision from SCIAMACHY: validation with FTS measurements and comparison with model results Published In Journal of Geophysical Research Volume 116 Pages 1 - 13 ISSN 0148-0227 Altmetric
  2011	Towards space based verification of CO2 emissions from strong localized sources: fossil fuel power plant emissions as seen by a CarbonSat constellation Published In Atmospheric Measurement Techniques Volume 4 Pages 2809 - 2822 ISSN 1867-1381 Altmetric
  2011	Validation of the Atmospheric Chemistry Experiment by noncoincident MkIV balloon profiles Published In Journal of Geophysical Research Volume 116 Pages 1 - 17 ISSN 0148-0227 Altmetric
  2010	Trend in ice moistening the stratosphere-constraints from isotope data of water and methane Published In Atmospheric Chemistry and Physics Volume 10 Pages 201 - 207 ISSN 1680-7316 Altmetric
  2009	Validation of version-4.61 methane and nitrous oxide observed by MIPAS Published In Atmospheric Chemistry and Physics Volume 9 Pages 413 - 442 ISSN 1680-7316 Altmetric
  2008	Evaluation of tropospheric and stratospheric ozone trends over Western Europe from ground-based FTIR network observations Published In Atmospheric Chemistry and Physics Volume 8 Pages 6865 - 6886 ISSN 1680-7316 Altmetric
  2008	Trend analysis of greenhouse gases over Europe measured by a network of ground-based remote FTIR instruments Published In Atmospheric Chemistry and Physics Volume 8 Pages 6719 - 6727 ISSN 1680-7316 Altmetric
  2007	Annual variation of strato-mesospheric carbon monoxide measured by ground-based Fourier transform infrared spectrometry Published In Atmospheric Chemistry and Physics Volume 7 Pages 1305 - 1312 ISSN 1680-7316
  2007	Validation and data characteristics of methane and nitrous oxide profiles observed by MIPAS and processed with Version 4.61 algorithm Published In Atmospheric Chemistry and Physics Volume 7 Pages 18043 - 18111 ISSN 1680-7316 Altmetric

• Conference Paper

  Year	Title
  2018	Philippines TCCON project: One-year measurement results and future Published In Optics InfoBase Conference Papers Altmetric
  2007	Validation of WFM-DOAS V0.6 CO and V1.0 CH4 scientific products using European ground-based FTIR measurements Published In Proceedings of the Third Workshop on the Atmospheric Chemistry Validation of Envisat (ACVE-3)

Presentations

• Invited Talk

  • TCCON – the gold standard remote sensing network for GHG satellite validation and inventory studies. The Asia-Pacific view, Speaker, GEO Week Ministerial Summit in Canberra, Australia 2019
  • TCCON Philippines Outreach to the Science Community, Speaker, Rockwell Business Center, Ortigas Metro Manila, Philippines 2017
  • Seminar on Atmospheric Chemistry and Physics, Speaker, Oscar M. Lopez Center for Climate Change and Disaster Risk Management Foundation, Philippines 2016
  • Understanding the Atmosphere via Fourier Transform Infrared (FTIR) Spectrometry: Contributions to Satellite Validation, Speaker, National Inst. of Meteorological Research, Seoul, South Korea. 2013
  • What the Philippines Can Do in the Midst of Climate Change, Speaker, Office of the Chairman, First Philippine Holdings, Manila, Philippines 2012
  • CarbonSat Constellation Progress Meeting: Approach to Detecting US Power Plant Emissions with CarbonSat, Speaker, The Senate of Bremen, Germany 2010
  • On Establishing an FTS Station in Russia for Atmospheric Observations, Speaker, Office of the Governor of Khanty-Mansiysk, Okrug, Russia 2007
  • Ground-based measurements of CO vertical profiles: satellite validation and model comparisons, Speaker, ACCENT-TROPOSAT-2 Meeting, Heraklion, Greece 2006
  • Measurements of Trace Gases in the Arctic (Ny Alesund, Spitsbergen): Influences of Biomass Burning, Speaker, National Institute of Polar Research, Tokyo, Japan 2005

Featured In

• Illawarra Mercury  Chapter
• uow news article  Webpage

Investigator On

Year	Title
2015	Southern Hemisphere Validation of GOSAT XCO2 and XCH4 Spatio-Temporal Variability from TCCON solar FTS Measurements in Australia and New Zealand Awarded by: National Institute for Environmental Studies (NIES) Japan Funding Scheme: GOSAT Grant
	CAMP2EX - Validation of H2O vapour and Aerosols over Burgos: Aircraft, GOSAT and TCCON (CAMP2Ex-HABAGAT) Awarded by: NASA Funding Scheme: Cloud and Aerosol Monsoonal Processes - Philippines Experiment

Other Research Activities

•  
• CAMP2EX - validation of H2O vapour and Aerosols over Burgos: Aircraft, GOSAT And TCCON (CAMP2Ex-HABAGAT) Principal Investigator 2017 - 2020
• A Deployable System for Automated Measurements of Greenhouse Gas Total Columns in Remote Environments Principal Investigator 2016 - 2017
• Southeast Asian TCCON Operations in Preparation for GOSAT-2 Satellite Principal Investigator 2016 - 2017

Impact Story

Reviewer Of

• Atmospheric Chemistry and Physics  (Journal) 2012 - 2020
• Atmospheric Measurement Techniques  (Journal) 2012 - 2020

Professional Service Activities

• Univerity of Wollongong High Performance Computing Steering Committee Steering committee member 2012 - 2020
• University of Wollongong Research Data Storage and Management Working group Member 2012 - 2017

Education And Training

• Ph.D., Institute of Environmental Physics, summa cum laude 2003 - 2006

Awards And Honors

• NASA Group Achievement Award, conferred by National Aeronautics and Space Administration , 2020
• summa cum laude, conferred by University of Bremen, Germany, 2006

Geographic Location

• Australia 

Located In Facility

• Building 18 

Orcid Id

• http://orcid.org/0000-0002-1376-438X (confirmed)

Web Of Science Researcher Id

• H-2280-2011

Scopus Id

• 56270700700

Top Publications

Year	Title
2017	TCCON Philippines: First Measurement Results, Satellite Data and Model Comparisons in Southeast Asia Published in   Remote Sensing
2017	The Orbiting Carbon Observatory (OCO-2) tracks 2-3 peta-gram increase in carbon release to the atmosphere during the 2014-2016 El Niño Published in   Scientific Reports
2011	Towards space based verification of CO2 emissions from strong localized sources: fossil fuel power plant emissions as seen by a CarbonSat constellation Published in   Atmospheric Measurement Techniques
2011	Validation of the Atmospheric Chemistry Experiment by noncoincident MkIV balloon profiles Published in   Journal of Geophysical Research

Research Areas

• 0401 - ATMOSPHERIC SCIENCES

Research Overview

• Dr. Velazco studied Physics and built a continuous wave CO₂ laser system from the ground up for his Bachelor thesis. He moved to Bremen, Germany to undertake the Masters degree in Environmental Physics, where he studied aerosols and cirrus clouds using measurements from a high-powered laser LIDAR system in the high Arctic (Ny Alesund, Spitsbergen). The work was in collaboration with the University of Bremen and the Alfred Wegener Institute for Polar and Marine Research.

  He later investigated the transport of pollutants from biomass burning and their effects on the atmosphere, using techniques in Fourier Transform Infrared (FT-IR) Spectrometry on board the Research Vessel Polarstern, in the Arctic and in the tropics for his Doctorate (summa cum laude), which was partly funded for the validation of the SCIAMACHY satellite.

  As a CALTECH postdoctoral scholar, he worked at NASA's Jet Propulsion Lab, California Institute of Technology, investigating the upper atmosphere and validating satellite instruments using JPL's MkIV balloon-borne interferometer. He embarked on measurement campaigns in the Arctic (Esrange) to validate the measurements from MLS, HIRDLS and TES instruments on board the AURA spacecraft and in Fort Sumner New Mexico, for the validation of ACE-FTS on the SCISAT spacecraft. In 2010, he worked on CarbonSat (a candidate for a future ESA Earth Explorer satellite), focusing mainly on detection of power plant CO₂ emissions.
  
  He currently works on retrievals and analysis of total carbon columns via ground-based solar spectrometry and satellites. From 2012 to 2017, he managed the operations of two Australian TCCON (Total Carbon Column Observing Network) stations: Wollongong and Darwin, including the processing, analysis, production and delivery of data products for validation of NASA's OCO-2 and Japan's GOSAT satellites. He conceptualized and spearheaded the establishment of TCCON-Philippines, the first TCCON station in Southeast Asia.

Geographic Focus

• Australia and New Zealand  Continent
• Philippines  Country
• South-eastern Asia  Transnational Region

Selected Publications

• Journal Article

  Year	Title
  2020	Bias Correction of the Ratio of Total Column CH4 to CO2 Retrieved from GOSAT Spectra Published In Remote Sensing Volume 12 Pages 3155-1 - 3155-29 ISSN 2072-4292 Altmetric
  2020	Characterizing model errors in chemical transport modeling of methane: impact of model resolution in versions v9-02 of GEOS-Chem and v35j of its adjoint model Published In Geoscientific Model Development Volume 13 Pages 3839 - 3862 ISSN 1991-959X Altmetric
  2020	Ensemble-based satellite-derived carbon dioxide and methane column-averaged dry-air mole fraction data sets (2003–2018) for carbon and climate applications Published In Atmospheric Measurement Techniques Volume 13 Pages 789 - 819 ISSN 1867-1381 Altmetric
  2020	Improved Constraints on Northern Extratropical CO2 Fluxes Obtained by Combining Surface-Based and Space-Based Atmospheric CO2 Measurements Published In Journal of Geophysical Research: Atmospheres Volume 125 Page p. e2019JD032029 Altmetric
  2020	Observed Hemispheric Asymmetry in Stratospheric Transport Trends From 1994 to 2018 Published In Geophysical Research Letters Volume 47 Altmetric
  2020	Spectral sizing of a coarse-spectral-resolution satellite sensor for XCO2 Published In Atmospheric Measurement Techniques Volume 13 Pages 731 - 745 ISSN 1867-1381 Altmetric
  2020	Validation of Carbon Trace Gas Profile Retrievals from the NOAA-Unique Combined Atmospheric Processing System for the Cross-Track Infrared Sounder Published In Remote Sensing Volume 12 Pages 3245-1 - 3245-29 ISSN 2072-4292 Altmetric
  2020	Validation of XCO2 and XCH4 retrieved from a portable Fourier transform spectrometer with those from in situ profiles from aircraft-borne instruments Published In Atmospheric Measurement Techniques Volume 13 Pages 5149 - 5163 ISSN 1867-1381 Altmetric
  2019	A scientific algorithm to simultaneously retrieve carbon monoxide and methane from TROPOMI onboard Sentinel-5 Precursor Published In Atmospheric Measurement Techniques Volume 12 Pages 6771 - 6802 Altmetric
  2019	Evaluation and Analysis of the Seasonal Cycle and Variability of the Trend from GOSAT Methane Retrievals Published In Remote Sensing Volume 11 Pages 882-1 - 882-31 ISSN 2072-4292 Altmetric
  2019	Evaluation of Bias Correction Methods for GOSAT SWIR XH2O Using TCCON data Published In Remote Sensing Volume 11 Pages 290-1 - 290-25 ISSN 2072-4292 Altmetric
  2019	Evaluation of MOPITT Version 7 joint TIR-NIR XCO retrievals with TCCON Published In Atmospheric Measurement Techniques Volume 12 Pages 5547 - 5572 ISSN 1867-1381 Altmetric
  2019	Long-range transport of aerosols from East and Southeast Asia to northern Philippines and its direct radiative forcing effect Published In Atmospheric Environment Volume 218 Pages 117007-1 - 117007-10 ISSN 1352-2310 Altmetric
  2019	Regional CO emission estimated from ground-based remote sensing at Hefei site, China Published In Atmospheric Research Volume 222 Pages 25 - 35 ISSN 0169-8095 Altmetric
  2019	Satellite and ground-based measurements of XCO2 in a remote semiarid region of Australia Published In Earth System Science Data Volume 11 Pages 935 - 946 Altmetric
  2019	TCCON and NDACC XCO measurements: difference, discussion and application Published In Atmospheric Measurement Techniques Volume 12 Pages 5979 - 5995 ISSN 1867-1381 Altmetric
  2018	Characteristics of greenhouse gas concentrations derived from ground-based FTS spectra at Anmyeondo, South Korea Published In Atmospheric Measurement Techniques Volume 11 Pages 2361 - 2374 ISSN 1867-1381 Altmetric
  2018	Improved retrievals of carbon dioxide from Orbiting Carbon Observatory-2 with the version 8 ACOS algorithm Published In Atmospheric Measurement Techniques Volume 11 Pages 6539 - 6576 ISSN 1867-1381 Altmetric
  2017	Comparisons of the Orbiting Carbon Observatory-2 (OCO-2) XCO2 measurements with TCCON Published In Atmospheric Measurement Techniques Volume 10 Pages 2209 - 2238 ISSN 1867-1381 Altmetric
  2017	Contributions of the troposphere and stratosphere to CH4 model biases Published In Atmospheric Chemistry and Physics Volume 17 Pages 13283 - 13295 ISSN 1680-7316 Altmetric
  2017	EOF-based regression algorithm for the fast retrieval of atmospheric CO2 total column amount from the GOSAT observations Published In Journal of Quantitative Spectroscopy and Radiative Transfer Volume 189 Pages 258 - 266 ISSN 0022-4073 Altmetric
  2017	Global land mapping of satellite-observed CO2 total columns using spatio-temporal geostatistics Published In International Journal of Digital Earth: a new journal for a new vision Volume 10 Pages 426 - 456 ISSN 1753-8947 Altmetric
  2017	Investigating the performance of a greenhouse gas observatory in Hefei, China Published In Atmospheric Measurement Techniques Volume 10 Pages 2627 - 2643 ISSN 1867-1381 Altmetric
  2017	Study of the footprints of short-term variation in XCO2 observed by TCCON sites using NIES and FLEXPART atmospheric transport models Published In Atmospheric Chemistry and Physics Volume 17 Pages 143 - 157 ISSN 1680-7316 Altmetric
  2017	TCCON Philippines: First Measurement Results, Satellite Data and Model Comparisons in Southeast Asia Published In Remote Sensing Volume 9 Pages 1228-1 - 1228-18 ISSN 2072-4292 Altmetric
  2017	The MUMBA campaign: measurements of urban, marine and biogenic air Published In Earth System Science Data Volume 9 Pages 349 - 362 Altmetric
  2017	The Orbiting Carbon Observatory (OCO-2) tracks 2-3 peta-gram increase in carbon release to the atmosphere during the 2014-2016 El Niño Published In Scientific Reports Volume 7 Pages 13567-1 - 13567-12 ISSN 2045-2322 Altmetric
  2017	Total Carbon Column Observing Network Philippines: toward quantifying atmospheric carbon in Southeast Asia Published In Climate, Disaster and Development Journal Volume 2 Pages 1 - 12 Altmetric
  2017	Validation of GOSAT SWIR XCO2 and XCH4 Retrieved by PPDF-S Method and Comparison with Full Physics Method Published In SOLA : Scientific Online Letters on the Atmosphere Volume 13 Pages 168 - 173 Altmetric
  2016	Ability of the 4-D-Var analysis of the GOSAT BESD XCO2 retrievals to characterize atmospheric CO2 at large and synoptic scales Published In Atmospheric Chemistry and Physics Volume 16 Pages 1653 - 1671 ISSN 1680-7316 Altmetric
  2016	Bias corrections of GOSAT SWIR XCO2 and XCH4 with TCCON data and their evaluation using aircraft measurement data Published In Atmospheric Measurement Techniques Volume 9 Pages 3491 - 3512 ISSN 1867-1381 Altmetric
  2016	Comparison of XH2O Retrieved from GOSAT short-wavelength infrared spectra with observations from the TCCON network Published In Remote Sensing Volume 8 Page p. 414 ISSN 2072-4292 Altmetric
  2016	Validation of TANSO-FTS/GOSAT XCO2 and XCH4 glint mode retrievals using TCCON data from near-ocean sites Published In Atmospheric Measurement Techniques Volume 9 Pages 1415 - 1430 ISSN 1867-1381 Altmetric
  2015	Assessing 5 years of GOSAT Proxy XCH4 data and associated uncertainties Published In Atmospheric Measurement Techniques Volume 8 Pages 4785 - 4801 ISSN 1867-1381 Altmetric
  2015	Consistent satellite XCO2 retrievals from SCIAMACHY and GOSAT using the BESD algorithm Published In Atmospheric Measurement Techniques Volume 8 Pages 2961 - 2980 ISSN 1867-1381 Altmetric
  2015	Estimating global and North American methane emissions with high spatial resolution using GOSAT satellite data Published In Atmospheric Chemistry and Physics Volume 15 Pages 7049 - 7069 ISSN 1680-7316 Altmetric
  2015	Mapping spectroscopic uncertainties into prospective methane retrieval errors from Sentinel-5 and its precursor Published In Atmospheric Measurement Techniques Volume 8 Pages 3617 - 3629 ISSN 1867-1381 Altmetric
  2015	Using XCO2 retrievals for assessing the long-term consistency of NDACC/FTIR data sets Published In Atmospheric Measurement Techniques Volume 8 Pages 1555 - 1573 ISSN 1867-1381 Altmetric
  2015	Validation of SCIAMACHY HDO/H2O measurements using the TCCON and NDACC-MUSICA networks Published In Atmospheric Measurement Techniques Volume 8 Pages 1799 - 1818 ISSN 1867-1381 Altmetric
  2014	Drivers of column-average CO2 variability at Southern Hemispheric Total Carbon Column Observing Network sites Published In Atmospheric Chemistry and Physics Volume 14 Pages 9883 - 9901 ISSN 1680-7316 Altmetric
  2014	Factors influencing surface CO2 variations in LPRU, Thailand and IESM, Philippines Published In Environmental Pollution Volume 195 Pages 282 - 291 ISSN 0269-7491 Altmetric
  2013	Simultaneous retrieval of atmospheric CO2 and light path modification from space-based spectroscopic observations of greenhouse gases: Methodology and application to GOSAT measurements over TCCON sites Published In Applied Optics Volume 52 Pages 1339 - 1350 ISSN 1559-128X Altmetric
  2012	Atmospheric greenhouse gases retrieved from SCIAMACHY: comparison to ground-based FTS measurements and model results Published In Atmospheric Chemistry and Physics Volume 12 Pages 1527 - 1540 ISSN 1680-7316 Altmetric
  2012	SCIAMACHY WFM-DOAS XCO2: comparison with CarbonTracker XCO2 focusing on aerosols and thin clouds Published In Atmospheric Measurement Techniques Volume 5 Pages 1935 - 1952 ISSN 1867-1381 Altmetric
  2011	Retrieval of atmospheric CO2 with enhanced accuracy and precision from SCIAMACHY: validation with FTS measurements and comparison with model results Published In Journal of Geophysical Research Volume 116 Pages 1 - 13 ISSN 0148-0227 Altmetric
  2011	Towards space based verification of CO2 emissions from strong localized sources: fossil fuel power plant emissions as seen by a CarbonSat constellation Published In Atmospheric Measurement Techniques Volume 4 Pages 2809 - 2822 ISSN 1867-1381 Altmetric
  2011	Validation of the Atmospheric Chemistry Experiment by noncoincident MkIV balloon profiles Published In Journal of Geophysical Research Volume 116 Pages 1 - 17 ISSN 0148-0227 Altmetric
  2010	Trend in ice moistening the stratosphere-constraints from isotope data of water and methane Published In Atmospheric Chemistry and Physics Volume 10 Pages 201 - 207 ISSN 1680-7316 Altmetric
  2009	Validation of version-4.61 methane and nitrous oxide observed by MIPAS Published In Atmospheric Chemistry and Physics Volume 9 Pages 413 - 442 ISSN 1680-7316 Altmetric
  2008	Evaluation of tropospheric and stratospheric ozone trends over Western Europe from ground-based FTIR network observations Published In Atmospheric Chemistry and Physics Volume 8 Pages 6865 - 6886 ISSN 1680-7316 Altmetric
  2008	Trend analysis of greenhouse gases over Europe measured by a network of ground-based remote FTIR instruments Published In Atmospheric Chemistry and Physics Volume 8 Pages 6719 - 6727 ISSN 1680-7316 Altmetric
  2007	Annual variation of strato-mesospheric carbon monoxide measured by ground-based Fourier transform infrared spectrometry Published In Atmospheric Chemistry and Physics Volume 7 Pages 1305 - 1312 ISSN 1680-7316
  2007	Validation and data characteristics of methane and nitrous oxide profiles observed by MIPAS and processed with Version 4.61 algorithm Published In Atmospheric Chemistry and Physics Volume 7 Pages 18043 - 18111 ISSN 1680-7316 Altmetric

• Conference Paper

  Year	Title
  2018	Philippines TCCON project: One-year measurement results and future Published In Optics InfoBase Conference Papers Altmetric
  2007	Validation of WFM-DOAS V0.6 CO and V1.0 CH4 scientific products using European ground-based FTIR measurements Published In Proceedings of the Third Workshop on the Atmospheric Chemistry Validation of Envisat (ACVE-3)

Presentations

• Invited Talk

  • TCCON – the gold standard remote sensing network for GHG satellite validation and inventory studies. The Asia-Pacific view, Speaker, GEO Week Ministerial Summit in Canberra, Australia 2019
  • TCCON Philippines Outreach to the Science Community, Speaker, Rockwell Business Center, Ortigas Metro Manila, Philippines 2017
  • Seminar on Atmospheric Chemistry and Physics, Speaker, Oscar M. Lopez Center for Climate Change and Disaster Risk Management Foundation, Philippines 2016
  • Understanding the Atmosphere via Fourier Transform Infrared (FTIR) Spectrometry: Contributions to Satellite Validation, Speaker, National Inst. of Meteorological Research, Seoul, South Korea. 2013
  • What the Philippines Can Do in the Midst of Climate Change, Speaker, Office of the Chairman, First Philippine Holdings, Manila, Philippines 2012
  • CarbonSat Constellation Progress Meeting: Approach to Detecting US Power Plant Emissions with CarbonSat, Speaker, The Senate of Bremen, Germany 2010
  • On Establishing an FTS Station in Russia for Atmospheric Observations, Speaker, Office of the Governor of Khanty-Mansiysk, Okrug, Russia 2007
  • Ground-based measurements of CO vertical profiles: satellite validation and model comparisons, Speaker, ACCENT-TROPOSAT-2 Meeting, Heraklion, Greece 2006
  • Measurements of Trace Gases in the Arctic (Ny Alesund, Spitsbergen): Influences of Biomass Burning, Speaker, National Institute of Polar Research, Tokyo, Japan 2005

Featured In

• Illawarra Mercury  Chapter
• uow news article  Webpage

Investigator On

Year	Title
2015	Southern Hemisphere Validation of GOSAT XCO2 and XCH4 Spatio-Temporal Variability from TCCON solar FTS Measurements in Australia and New Zealand Awarded by: National Institute for Environmental Studies (NIES) Japan Funding Scheme: GOSAT Grant
	CAMP2EX - Validation of H2O vapour and Aerosols over Burgos: Aircraft, GOSAT and TCCON (CAMP2Ex-HABAGAT) Awarded by: NASA Funding Scheme: Cloud and Aerosol Monsoonal Processes - Philippines Experiment

Other Research Activities

•  
• CAMP2EX - validation of H2O vapour and Aerosols over Burgos: Aircraft, GOSAT And TCCON (CAMP2Ex-HABAGAT) Principal Investigator 2017 - 2020
• A Deployable System for Automated Measurements of Greenhouse Gas Total Columns in Remote Environments Principal Investigator 2016 - 2017
• Southeast Asian TCCON Operations in Preparation for GOSAT-2 Satellite Principal Investigator 2016 - 2017

Impact Story

Reviewer Of

• Atmospheric Chemistry and Physics  (Journal) 2012 - 2020
• Atmospheric Measurement Techniques  (Journal) 2012 - 2020

Professional Service Activities

• Univerity of Wollongong High Performance Computing Steering Committee Steering committee member 2012 - 2020
• University of Wollongong Research Data Storage and Management Working group Member 2012 - 2017

Education And Training

• Ph.D., Institute of Environmental Physics, summa cum laude 2003 - 2006

Awards And Honors

• NASA Group Achievement Award, conferred by National Aeronautics and Space Administration , 2020
• summa cum laude, conferred by University of Bremen, Germany, 2006

Geographic Location

• Australia 

Located In Facility

• Building 18 

Orcid Id

• http://orcid.org/0000-0002-1376-438X (confirmed)

Web Of Science Researcher Id

• H-2280-2011

Scopus Id

• 56270700700