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Paul Beggs Phenology 2018 presentation on AusPollen


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Macquarie University Associate Professor Paul Beggs's Phenology 2018 Conference presentation on the Australia-wide AusPollen network.

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Paul Beggs Phenology 2018 presentation on AusPollen

  1. 1. AusPollen: a revolution in Australian aerobiology and understanding of pollen phenology Paul Beggs*, Alfredo Huete, Simon Haberle, Danielle Medek, Constance Katelaris, Edward Newbigin, Bircan Erbas, Elizabeth Ebert, Rieks van Klinken, Janet Davies *Department of Environmental Sciences Macquarie University Sydney 1 Image by Dartmouth Electron Microscope Facility, Dartmouth College
  2. 2. AusPollen AusPollen is a transdisciplinary, multi-institutional partnership established in 2013 for the research of airborne pollen in Australia. Its scope spans the full range of aerobiological activities, from pollen monitoring and reporting to forecasting and human health impacts. It started with two 1-week workshops on North Stradbroke Island off the coast of Queensland supported by the Australian Centre for Ecological Analysis & Synthesis (ACEAS). 2
  3. 3. Synthesis and Analysis of Australian Airborne Pollen Data Compilation of all available airborne pollen concentration data for Australia. Analysis of spatial and temporal variability. Analysis of relationships with weather and climate. Development of forecasting capacity using meteorological, landscape ecology, and other variables. Collaboration with New Zealand and French colleagues to enable broader regional and international comparisons. 3
  4. 4. The Australian (& NZ) Climate 4 Haberle et al. PLoS One (2014) 9(5):e97925
  5. 5. 5 Haberle et al. PLoS One (2014) 9(5):e97925 Climate and pollen phenology (Poaceae and non-native arboreal taxa) for Canberra (26 Sept 2007–31 Dec 2009).
  6. 6. 6 Haberle et al. PLoS One (2014) 9(5):e97925
  7. 7. Grass Pollen Season Phenology Variation in timing of grass pollen season with latitude (a, c, e) and average spring temperature (b, d, f). Points represent medians, with bars representing the interquartile range when more than two values were available. 7Medek et al. Aerobiologia (2016) 32:289–302
  8. 8. Grass Pollen Season Phenology 8Beggs et al. ANZJPH (2015) 39(1):51–55
  9. 9. Grass Pollen Season Phenology Grass pollen phenology in some Australian locations is complex due to a mix of temperate (C3) and subtropical (C4) grasses. 9Medek et al. Aerobiologia (2016) 32:289–302 Ryegrass (C3) Bahia grass (C4)
  10. 10. Remote Sensing of Grass Phenology Environmental Vegetation Index (EVI) A proxy of canopy “greenness”, which is defined as an integrative composite property of green leaf area, green foliage cover and structure, and leaf chlorophyll content. A function of remotely sensed reflectances (ρ) in the near infrared (nir), red, and blue bands. Can, for example, define: • Start of Greening Season • Peak of Greening Season • End of Greening Season • Length of Greening Season 10 Devadas et al. STE (2018) 633:441-451 (Ma et al. (2013) Remote Sensing of Environment)
  11. 11. 11 Devadas et al. STE (2018) 633:441-451
  12. 12. Remote Sensing of Grass Phenology and Distribution 12 Xie, Huete, et al. In preparation. C4 BrisbaneSydney Dominantly C4 C3 & C4 mixed C3 Grass species distribution - from peak of growing season
  13. 13. Epidemic Thunderstorm Asthma Involved interaction between a line of thunderstorms and extreme rye grass pollen levels. 13 THE MELBOURNE NOVEMBER 2016 EVENT Thien et al. Lancet Planet Health (2018) 2:e255-e263
  14. 14. Epidemic Thunderstorm Asthma The seasonal context was important. 14 THE MELBOURNE NOVEMBER 2016 EVENT September October November Rainfall Deciles Normalised Difference Vegetation Index Anomaly
  15. 15. The Australian Standard • Executive Summary • Recommendations for Location of Airborne Pollen and Spore Monitoring Sites • Work Health and Safety Recommendations • Sampling Technique • Mounting and Counting Method • Calculations • Quality Control and Auditing • Data Archive and Repository • Appendices • Minimum standards for the Victorian Thunderstorm Asthma Pollen Surveillance (VicTAPS) Network (operationalised in Sept/Oct 2017) 15 Beggs et al. (2018) to be published by Australasian Society of Clinical Immunology and Allergy (ASCIA)
  16. 16. Monitoring Sites “Add data” → Environmental Monitoring Sites Register → Air → AusPollen Aerobiology Collaboration Monitoring Network Click “Add to map” Other sites currently being established. 16 NATIONAL ENVIRONMENTAL MONITORING SITES REGISTER
  17. 17. Conclusions Through initial synthesis and analysis of Australian airborne pollen data, the AusPollen partnership has revealed a striking spatial and temporal variability in grass pollen seasons in Australia. These are related to the diversity of Australia’s climates and the distribution of C3 and C4 grasses, amongst other things. Phenology derived from remote sensing data could provide information of C3 and C4 grass distribution. 17 AND FUTURE CHALLENGES
  18. 18. Conclusions While aeroallergen monitoring has significantly improved in Australia since 2013 (e.g., more monitors and standardisation), future challenges include: • Continuation of the current network (all supported with fixed-term funding); • Progression to automated monitoring; • Advancement of research to better understand the complex phenology of Australian airborne pollen and fungal spores using datasets that are longer and from a greater diversity of locations. 18 AND FUTURE CHALLENGES
  19. 19. Acknowledgements 19 Partner Organisations The AusPollen Partnership Project is supported (Sept 2016 – Aug 2020) by NHMRC with matching in kind and cash contributions from partner organisations. Other major funding sources are the ARC and Victorian Government.
  20. 20. Thank You for Your Attention 20