Hemiphoto time series
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1. US EPA, Office of Research and Development	2. US EPA, Office of Research aid Development

National Exposure Research Laboratory (NERi)	National Center for Environmental Assessment (NCEA)

Environmental Sciences Dlvtstcn	Environ men td Media Assessment Groip

Research Triangle Park, NC	Research Triangle Pate, NC

Field
Validation
Studies

•	Satellite measurements must
be validated by /nsdl/field
studies

•	Forest research sites are
SLrveyed for species, size,
canopy/understory structure
(biometrics)

•	Repeat measurements of leaf
area index:

•hemispherical (fish eye)
photog"aphy and
•TRAC stnfleck profiling

•	Output: quantify LAI and
canopy structure

Partners

•	NASA:	satellite imagery

•	State of NC:	Umstead State Park research site

•	State of VA:	Fairystone State Park Gamelands research site

•	Duke University: FACE methods validation site

•	NC State University: South Hill methods validation site

•	NERL / NCEA: principal investigators

KEYWORDS: vegetation, LAI, biomass,
landscape change detection, remote
sensing, land-cover mapping, ecosystem
assessment, biogenic emissions, nutrient
processes

Impact

Dynamic parameterization of landscape process models

•	Automate satellite-based landscape change detection

•	Validate NASA MCDIS derived standard products fcr EPA applications

canopy u.p -y-j»

i*iiiyiilA

Partnering to Protect Human Health and the Environment

Andrew Pilant1, Timothy Lewis2, John Iiames1, Ross Lunetta1

SATELLITE REMOTE SENSING AND GROUND-BASED ESTIMATES OF FOREST BIOMASS AND

CANOPY STRUCTURE

Emerging Technologies

Environmental Science Issues

•	Landscape characterization and change detection

•	Biogenic emissions, nutrient and sedimentation processes

•	Remotely characterize lanctec^e structure and monitor ecosystem

•	Detect patterns of forest productivity and charges over time due to stressors

•	Forest carbon sequestration potential

Satellite Remote Sensing

•	Measure leaf area index (LAI) (biomass surrogate) using NASA MCDIS se

•	Measure and monitor vegetation dynamics over time

•	Use vegetation dynamics for land-cover mapping and change detection

•	Input LAI to biogenic emissbns and nutrient process models

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