Parameter: |
Direct N as N2O emission factor = 1.000E-03 g / g |
Reference: |
USEPA (2013). Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2011. U.S. Environmental Protection Agency. Annex 3.11: Methodology for Estimating CH4 and N2O Emissions from Manure Management. https://www.epa.gov/sites/production/files/2015-12/documents/us-ghg-inventory-2013-annexes.pdf |
Parameter: |
Nitrogen excretion rate = 519 g / year |
Reference: |
USEPA (2013). Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2011. U.S. Environmental Protection Agency. Annex 3.11: Methodology for Estimating CH4 and N2O Emissions from Manure Management. https://www.epa.gov/sites/production/files/2015-12/documents/us-ghg-inventory-2013-annexes.pdf |
Parameter: |
Proportion in manure management system = 0.88 |
Reference: |
Wirth, T. (2015). Data request between CARB and Tom Wirth, US Environmental Protection Agency, December 2015. |
Parameter: |
Redeposited nitrogen emitted as N2O = 0.01 g / g |
Reference: |
IPCC (2006). 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Prepared by the National Greenhouse Gas Inventories Programmed, Eggleston HAS., Biennia L., Miwa K., Negara T. and Tanabe K. (eds). Vol.4, Chap. 10: Livestock and Manure Management. Published: IGES, Japan. http://www.ipcc-nggip.iges.or.jp/public/2006gl/pdf/4_Volume4/V4_10_Ch10_Livestock.pdf |
Parameter: |
Runoff fraction = 0 |
Reference: |
Wirth, T. (2015). Data request between CARB and Tom Wirth, US Environmental Protection Agency, December 2015. |
Parameter: |
Runoff nitrogen emitted as N2O = 7.500E-03 g / g |
Reference: |
IPCC (2006). 2006 IPCC Guidelines for National Greenhouse Gas Inventories, Prepared by the National Greenhouse Gas Inventories Programmed, Eggleston HAS., Biennia L., Miwa K., Negara T. and Tanabe K. (eds). Vol.4, Chap. 10: Livestock and Manure Management. Published: IGES, Japan. http://www.ipcc-nggip.iges.or.jp/public/2006gl/pdf/4_Volume4/V4_10_Ch10_Livestock.pdf |
Parameter: |
Total population = 20,172,000 head |
Reference: |
Wirth, T. (2015). Data request between CARB and Tom Wirth, US Environmental Protection Agency, December 2015. |
Parameter: |
Volatilized fraction = 0.34 |
Reference: |
Wirth, T. (2015). Data request between CARB and Tom Wirth, US Environmental Protection Agency, December 2015. |
Constant: |
Average number of days per year = 365.2425 day |
Reference: |
USNO (2004). U.S. Naval Observatory, Astronomical Applications Department, Leap Years. Accessed online at: http://www.usno.navy.mil/USNO/astronomical-applications/astronomical-information-center/leap-years |
Constant: |
Molecular weight ratio of N2O to N2 = 1.571133815 |
Reference: |
IUPAC (2006). Atomic Weights of the Elements 2005 (IUPAC Technical Report). Pure Appl. Chem., Vol. 78, No. 11, pp. 2051–2066, 2006. |
Constant: |
Global warming potential of N2O = 298 |
Reference: |
IPCC (2007). Climate Change 2007: The Physical Science Basis. Contribution of Working Group I to the Fourth Assessment Report of the Intergovernmental Panel on Climate Change. Solomon S., Qin D., Manning M., Chen Z., Marquis M., Averyt K.B., Tignor M., and Miller H.L. (eds.). http://www.ipcc.ch/publications_and_data/publications_ipcc_fourth_assessment_report_synthesis_report.htm |