Improved model for estimating emissions of volatile organic compounds from forests in the eastern United States
The article discusses an improved model for estimating emissions of volatile organic compounds (VOCs) from forests in the Eastern U.S. Regional estimates of biogenic volatile organic compound (BVOC) emissions are important inputs for models of atmospheric chemistry and carbon budgets. Since forests are the primary emitters of BVOCs, it is important to develop reliable estimates of their areal coverage and BVOC emission rate. A new system is developed to estimate these emissions for specific tree genera at hourly and county level resolution. The U.S. Department of Agriculture (USDA) Forest Services' Forest Inventory and Analysis (FIA) Eastwide Database is used to describe areal extent, species composition, and tree diameter distribution of U.S. forests. Horizontal canopy occupancy by genera is then estimated as a function of diameter at breast height. Growing season peak foliar masses are derived from the empirical literature for canopies of deciduous and coniferous genera. A simple canopy model is used to adjust photosynthetically active solar radiation at five vertical levels in the canopy.
- Research Organization:
- National Center for Atmospheric Research, Boulder, CO (United States). Atmospheric Chemistry Div.
- OSTI ID:
- 7131244
- Report Number(s):
- PB-94-210440/XAB; CNN: EPA-68W00043
- Resource Relation:
- Other Information: Pub. in Jnl. of Geophysical Research, Vol. 99, No. D6, 12,773-12,791(Jun 1994)
- Country of Publication:
- United States
- Language:
- English
Similar Records
Alternative method for estimating biogenic voc emissions in EPA Region 1. Interim report, October 1991-October 1992
Forest-atmosphere BVOC exchange in diverse and structurally complex canopies: 1-D modeling of a mid-successional forest in northern Michigan
Related Subjects
54 ENVIRONMENTAL SCIENCES
99 GENERAL AND MISCELLANEOUS//MATHEMATICS, COMPUTING, AND INFORMATION SCIENCE
AROMATICS
MATHEMATICAL MODELS
PROBABILISTIC ESTIMATION
FORESTS
ATMOSPHERIC CHEMISTRY
CARBON CYCLE
CHEMISTRY
ORGANIC COMPOUNDS
095000* - Biomass Fuels- Environmental Aspects- (1990-)
540120 - Environment
Atmospheric- Chemicals Monitoring & Transport- (1990-)
990200 - Mathematics & Computers