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Template 773 San Marin Drive, Suite 2115, Novato, CA 94998 P: 415-899-0700 F: 415-899-0707 www.environcorp.com ENVIRON International Corporation Novato,

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Presentation on theme: "Template 773 San Marin Drive, Suite 2115, Novato, CA 94998 P: 415-899-0700 F: 415-899-0707 www.environcorp.com ENVIRON International Corporation Novato,"— Presentation transcript:

1 Template 773 San Marin Drive, Suite 2115, Novato, CA P: F: ENVIRON International Corporation Novato, California Status Updates Isoprene Comparisons from Using Different Sources of PAR Conference Call on December 14, 2011 Western Biogenic Emission Inventory Improvement

2 773 San Marin Drive, Suite 2115, Novato, CA P: F: Status Update Western Biogenic EI Improvement Project Comparisons of emission inventories from SMOKE BEIS v3.14, MEGAN v2.04, MEGAN v2.10 for July 3 – 18, 2008 and January 3 – 18, 2008, with new WRF data o No change to previous conclusion to use MEGAN v2.10 o Most results are presented at the end as “extra slides” Investigating isoprene emission and Photosynthetically Active Radiation (PAR) data from WRF and satellite o Example results are presented today. o Recommend using satellite PAR data for 2008 emission inventories Starting to evaluate WRF performance for cloud fraction

3 MEGAN(old) – SMKBEIS SMK-BEIS v3.14 MEGAN v2.04(old) MEGAN v2.10(new) Average Isoprene Emission from July 3 to July 18, 2008 MEGAN(new) – SMKBEIS MEGAN(new) – MEGAN(old) Domain: 36km

4 VOC, CO, NO2, etc. Photosynthetically Active Radiation (PAR) Cloud WRF Solar Radiation VS satellite PAR MEGAN Model WRF to MEGAN PAR = 0.5 x SRAD Where 0.5 is assumed that ½ of solar radiation is in nm band SRAD is solar radiation (w/m2) Satellite to MEGAN From GEWEX/GCIP and GEWEX Americas Prediction Project (GAPP) Satellite reports PAR data used directly in MEGAN Pinker, et al., shows good performance between satellite and ground stations Pinker, et al., 2003, Surface radiation budgets in support of the GEWEX Continental-Scale International Project (GCIP) and the GEWEX Americas Prediction Project (GAPP), including the North American Land Data Assimilation System (NLDAS) project

5 MEGAN v2.10 WRF/MCIP Average Isoprene Emission from July 3 to July 18, 2008 Domain: 36km MEGAN v2.10 Satellite Difference WRF/MCIP - Satellite PAR WRF/MCIP PAR Satellite PAR WRF/MCIP - Satellite Domain Total = 7353 kg/hr km2 Domain Total = 4735 kg/hr km2 Difference = 2618 kg/hr km2 (55%)

6 WRF Solar Radiation VS satellite PAR PAR = 0.5 x Short Wave Radiation Problem? Satellite PAR

7 PAR is defined as radiation with wavelength between 400 and 700 nm Conversion Factor for Short Wave Radiation to PAR Conversion Factor varies spatially and temporally Use Conversion Factor of 0.45 for this study

8 MEGAN v2.10 WRF/MCIP Average Isoprene Emission from July 3 to July 18, 2008 Domain: 36km MEGAN v2.10 Satellite Difference WRF/MCIP - Satellite PAR Satellite PAR Difference (%) WRF/MCIP – Satellite Domain Total = 4735 kg/hr km2 Difference = 1769 kg/hr km2 (37%) PAR WRF/MCIP Domain Total = 6504 kg/hr km2

9 MEGAN v2.10 WRF/MCIP Average Isoprene Emission from January 3 to 18, 2008 Domain: 36km MEGAN v2.10 Satellite Difference WRF/MCIP - Satellite PAR WRF/MCIP PAR Satellite PAR Difference (%) WRF/MCIP - Satellite Domain Total = kg/hr km2 Domain Total = kg/hr km2 Difference = kg/hr km2 (49%)

10 MEGAN v2.10 WRF/MCIP Average Isoprene Emission from July 3 to July 18, 2008 Domain: 4km MEGAN v2.10 Satellite Difference WRF/MCIP - Satellite Domain Total = 19,642 kg/hr km2 Difference = 6,747 kg/hr km2 (34%) Domain Total = 26,389 kg/hr km2

11 MEGAN v2.10 WRF/MCIP Average Isoprene Emission from January 3 to 18, 2008 Domain: 4km MEGAN v2.10 Satellite Difference WRF/MCIP - Satellite Domain Total = kg/hr km2 Difference = kg/hr km2 (68%) Domain Total = kg/hr km2

12 Domain Average Isoprene Emission Domain: 4km Using WRF/MCIP PAR results in higher emission especially during the peak hours Day-to-day emission variations are due to cloud cover

13 WRF Solar Radiation VS satellite PAR under clear sky ISOP WRF/MCIPISOP SatellitePercent Difference WRF/MCIP CCF Satellite CCF Clear sky ISOP from WRF/MCIP PAR is higher up to 40%.

14 Summary Western Biogenic EI Improvement Project The new WRF data do not change the conclusion to use MEGANv2.10 for 2008 biogenic inventory WRF/MCIP PAR results in > 30% higher isoprene emission than satellite PAR, especially during the peak hours Difference occurs under clear skies: not due to cloud fraction Calculating PAR as a fraction of WRF Short Wave radiation is part of the problem Recommend using satellite PAR data Limited satellite data coverage for Canada and Mexico not a major shortcoming for this project Working on converting satellite cloud fraction to a workable format for comparison with WRF/MCIP

15 Western Biogenics EI Improvement Project Next Steps Proceed with 2008 inventory using satellite PAR data o QA satellite PAR data to find and fill any data gaps o Process biogenic emissions for all of 2008 for the 3 domains Proceed with cloud fraction analysis to assist with WRF evaluation

16 Extra Slides Comparisons between SMKBEIS 3.14, MEGAN 2.04, and MEGAN 2.10 –Using PAR = 0.5 x SRAD

17 MEGAN(old) – SMKBEIS SMK-BEIS v3.14 MEGAN v2.04(old) MEGAN v2.10(new) Average Isoprene Emission from July 3 to July 18, 2008 MEGAN(new) – SMKBEIS MEGAN(new) – MEGAN(old) Domain: 36km

18 SMK-BEIS v3.14 MEGAN v2.04(old) MEGAN v2.10(new) MEGAN(old) – SMKBEIS MEGAN(new) – SMKBEIS MEGAN(new) – MEGAN(old) Average Isoprene Emission from July 3 to July 18, 2008 Domain: 4km

19 Isoprene – County Summary Domain: 4km Note: Clark, NV is outside 4km domain. Average Emission July 3-18, 2008

20 MEGAN(old) – SMKBEIS SMK-BEIS v3.14 MEGAN v2.04(old) MEGAN v2.10(new) MEGAN(new) – SMKBEIS MEGAN(new) – MEGAN(old) Average Monoterpene Emission from July 3 to July 18, 2008 Domain: 36km

21 SMK-BEIS v3.14 MEGAN v2.04(old) MEGAN v2.10(new) MEGAN(old) – SMKBEIS MEGAN(new) – SMKBEIS MEGAN(new) – MEGAN(old) Average Monoterpene Emission from July 3 to July 18, 2008 Domain: 4km

22 Note: Clark, NV is outside 4km domain. MTP – County Summary Domain: 4km Average Emission July 3-18, 2008

23 MEGAN(old) – SMKBEIS SMK-BEIS v3.14 MEGAN v2.04(old) MEGAN v2.10(new) MEGAN(new) – SMKBEIS MEGAN(new) – MEGAN(old) Average CO Emission from July 3 to July 18, 2008 Domain: 36km

24 SMK-BEIS v3.14 MEGAN v2.04(old) MEGAN v2.10(new) Average CO Emission from July 3 to July 18, 2008 Domain: 4km MEGAN(old) – SMKBEIS MEGAN(new) – SMKBEIS MEGAN(new) – MEGAN(old)

25 MEGAN(old) – SMKBEIS SMK-BEIS v3.14 MEGAN v2.04(old) MEGAN v2.10(new) MEGAN(new) – SMKBEIS MEGAN(new) – MEGAN(old) Average NOx Emission from July 3 to July 18, 2008 Domain: 36km

26 SMK-BEIS v3.14 MEGAN v2.04(old) MEGAN v2.10(new) MEGAN(old) – SMKBEIS MEGAN(new) – SMKBEIS MEGAN(new) – MEGAN(old) Average NOx Emission from July 3 to July 18, 2008 Domain: 4km

27 CO and NOx – County Summary Domain: 4km Average Emission July 3 to July 18, 2008 Note: Clark, NV is outside 4km domain.

28 MEGAN(old) – SMKBEIS SMK-BEIS v3.14 MEGAN v2.04(old) MEGAN v2.10(new) Average Isoprene Emission from January 3 to 18, 2008 MEGAN(new) – SMKBEIS MEGAN(new) – MEGAN(old) Domain: 36km

29 SMK-BEIS v3.14 MEGAN v2.04(old) MEGAN v2.10(new) MEGAN(old) – SMKBEIS MEGAN(new) – SMKBEIS MEGAN(new) – MEGAN(old) Average Isoprene Emission from January 3 to 18, 2008 Domain: 4km

30 MEGAN(old) – SMKBEIS SMK-BEIS v3.14 MEGAN v2.04(old) MEGAN v2.10(new) MEGAN(new) – SMKBEIS MEGAN(new) – MEGAN(old) Average Monoterpene Emission from January 3 to 18, 2008 Domain: 36km

31 SMK-BEIS v3.14 MEGAN v2.04(old) MEGAN v2.10(new) MEGAN(old) – SMKBEIS MEGAN(new) – SMKBEIS MEGAN(new) – MEGAN(old) Average Monoterpene Emission from January 3 to 18, 2008 Domain: 4km

32 MEGAN(old) – SMKBEIS SMK-BEIS v3.14 MEGAN v2.04(old) MEGAN v2.10(new) MEGAN(new) – SMKBEIS MEGAN(new) – MEGAN(old) Average CO Emission from January 3 to 18, 2008 Domain: 36km

33 SMK-BEIS v3.14 MEGAN v2.04(old) MEGAN v2.10(new) Average CO Emission from January 3 to 18, 2008 Domain: 4km MEGAN(old) – SMKBEIS MEGAN(new) – SMKBEIS MEGAN(new) – MEGAN(old)

34 MEGAN(old) – SMKBEIS SMK-BEIS v3.14 MEGAN v2.04(old) MEGAN v2.10(new) MEGAN(new) – SMKBEIS MEGAN(new) – MEGAN(old) Average NOx Emission from January 3 to 18, 2008 Domain: 36km

35 SMK-BEIS v3.14 MEGAN v2.04(old) MEGAN v2.10(new) MEGAN(old) – SMKBEIS MEGAN(new) – MEGAN(old) Average NOx Emission from January 3 to 18, 2008 Domain: 4km MEGAN(new) – SMKBEIS

36 CO and NOx – County Summary Domain: 4km Average Emission January 3 to 18, 2008 Note: Clark, NV is outside 4km domain.

37 ISOP and MTP - County Summary Domain: 4km Average Emission January 3 to 18, 2008 Note: Clark, NV is outside 4km domain.

38 MEGAN v2.10(new) Isoprene Emission and PFT Relationship - Slide 1 Domain: 36km Broadleaf DeciduousBroadleaf Evergreen Needle Leaf Deciduous Needle Leaf EvergreenShrub EF = µg/m2-hr EF = 600 µg/m2-hr EF = 4000 µg/m2-hrEF = 1 µg/m2-hr

39 MEGAN v2.10(new) Isoprene Emission and PFT Relationship - Slide 2 Domain: 36km Grass - ColdGrass - Warm Crops CornLAI EF = 1 µg/m2-hrEF = 50 µg/m2-hr EF = 200 µg/m2-hrEF = 1600 µg/m2-hr

40 MEGAN v2.10(new) Monoterpene Emission and PFT Relationship - Slide 1 Domain: 36km Broadleaf DeciduousBroadleaf Evergreen Needle Leaf Deciduous Needle Leaf EvergreenShrub EF = µg/m2-hr EF = µg/m2-hr EF = µg/m2-hrEF = 40 – 510 µg/m2-hr

41 MEGAN v2.10(new) Monoterpene Emission and PFT Relationship - Slide 2 Domain: 36km Grass - ColdGrass - Warm Crops CornLAI EF = µg/m2-hr

42 MEGAN v Base Bark Beetle Infestation - Monoterpene Domain: Denver – SIP 12km Current Denver SIP 2008, MEGANv2.04 Bark Beetle Affecting needle leaf tree => MTP Sensitivity tests are based on 2006 meteorological data July - Monthly Average 2006 Bark Beetle - Base2010 Bark Beetle - Base


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