Discussion Topics – Delaware River Basin
Pilot Project
• Synergistic opportunities between FIA/FHM/GC/USGS
–
–
–
–
Scaling – top down/bottom up – multi-tier approach
Multi-phase estimation techniques
Integrated monitoring – land/air/water (e.g. fragmentation and water q.)
Specific variables (e.g. soils) or unique systems (e.g. riparian)
• Specific future projects?
– Additional pilot studies:
• DRB 2? Where?
• NACP “Tier 3”?
– Techniques development:
•
•
•
•
New variables or enhanced variables?
Estimation methods for multi-phase inventories?
Linking P1/P2/P3 with research sites (P4/P5)?
Others?
• Ways to strengthen links between FIA/FHM and other research
North American Carbon Program (NACP) –
Biophysical Measurements and Models
• Reduce the uncertainty in land-based
monitoring of changes in carbon stocks
• Fully integrate land-based
measurements with atmospheric
measurements
• Provide the mechanistic foundation for
inverse modeling and data assimilation
The Multi-tier Approach to
Monitoring
Multi-Scale Evaluation
USFS approach to forest
health monitoring
MODIS with field
validation – “bigfoot”
NACP Hierarchical land surface
measurement program
• Tier One – Remote Sensing and Mapping
– Wall-to-wall coverage; stratification
– Temporal resolution = high or low
• Tier Two – Extensive Inventories and Surveys
– Representative regional statistical sample
– Temporal resolution = low
• Tier Three – Condition Sample (new)
– Representative of specified condition classes
– Temporal resolution = medium
• Tier Four –Intensive Areas
– Relatively small number of specific sites
– Temporal resolution = high
Multi-tier Monitoring Concept for the
Land Component of NACP
Example
Variable
Tier 1
Tier 2
Tier 3
Tier 4
Remote
Sensing
Extensive
Inventory
Condition
Sample
Intensive
Site
Land cover
X
X
X
X
Leaf area
X
X
X
X
Disturbance
X
X
X
X*
X
X
X
Litterfall
X
X
Soil CO2 flux
X
X
Methane flux
X
X
DOC
X
X
Live biomass
NEE
X
* Designed experiments
Objectives of “Tier 3” of NACP
• Augment coverage of the land
surface by tier 4 sites
– Natural disturbances and management
– Edges/fragmented landscapes
– Mountain terrain
• Facilitate scaling from intensive
sites to landscapes
• Model parameterization or
validation
Proposal: The primary sampling unit of a Tier 3 site
will be a 1 x 1 km grid of inventory plots
surrounding a special research installation
• 9-36 inventory plots
km-2
• Flux, meteorological
tower or other
installation at center
• Primary sampling
units (1 x 1 km grids)
may be combined
• Other measures
(litterfall, respiration)
take place at inventory
plots
Tier 3 Pilot Test Locations
FS Flux Tower
Other Flux Tower
Potential New FS Flux Tower
Potential New FS Biometric Site