Who are we? Fire severity and carbon emmision Terminology Fuel consumption- how much material is consumed during the burn Burn severity- an ecologically-based term centered on assessment of the impact of fire on the ecology of the site. This is complex thing because it is so qualitative.

doctorlanguidInternet and Web Development

Dec 8, 2013 (3 years and 6 months ago)

54 views

Who are we?

Fire severity and carbon emmision


Terminology

Fuel consumption
-

how much material is consumed during the burn

Burn severity
-

an ecologically
-
based term centered on assessment of the impact of fire on
the ecology of the site.


This is complex t
hing because it is so qualitative.

Fire intensity
-

energy produced

Fire severity
-

direct effects of fire on the environment


Nancy French’s project:

To quantify the variability in biomass consumption in forested region of northern and
western north America
.

Remote sensing will be used to sample fire
-
disturbaed sites at broad spatial scales so that
the full range of fires’ impact can be assessed.

Investigate the connection between spectral signature and biomas consumption by
comparing field and image data

Gr
ound measurements and remote sensed measurements


Canadian project (Canadian Wildfire Fire Information system Emissions Team
-
CET):
HAVE to deliver natioan estimates of carbon emissions (KYOTO protocol).. need
something right away after a fire to show carb
on emissions, so they are using remote
sensing.. Remote sensing and the connection between fire emissions and carbon.


Canadian fire modeling: Interpreting “fire severity”. Doing a lot of prescribed burns, and
finding out that fuel consumption is really
correlated with pre
-
burn characteristics! CBM
-
CFS3 carbon pools. (Mike Apps, and Vernen?). BORFIRE model. FWI parameters and
fuels data to calculate physical fire characteristics to get a fire emissions. Very similar to
ALFRESCO, but a bit more detail i
n pools within trees, but no shrubs.


BORFIRE method
-

FBO
-
based rate of fire spread from ISI for crown fuel
consumption, duff and wood debris fuel consumption variable by fueld load, all inputs
are spatially and temporally explicit.


NASA
-
NACP (Eric/Dave M
cGuire/Merritt’s work): “what is that stuff called duff”.
Impacts of fire severity on these deep organic layers (mostly underlain with permafrost).
TEM modeling with Dave. Carbon storage impacts, and carbon emissions. How much is
peatlands contributin
g to carbon emissions related to fire. What controls depth of burn?
Especially in areas where short
-
term fire weather are not controlling the moisture to the
same degree. Quantify landscape, fire weather controls, and other controls on surface
fuel cons
umtion in the N. American boreal pealtnds and permafrosts. Develop
approaches to imprive SFC in fire emissions and biogeochemical cyle models, generate
trace gas emissions estimtes from boreal fires for the years 1995
-
2006, determine how
recent increase i
n fire activity in the NABR region have influenced the terrestrial carbon
budget


What are the patterns of aboveground burn severity in the different forest/peatland types
that burn?

What is the range of depth in burn. Really interested in the variability

within each fires.

What factors control interannual and seasonal variability.


Duff moisture: Water table, interannual variability, permafrost, soil drainage, how all
these related to duff consumption.


Laura’s SAR project: Can we measure soil moistur
e in our sites for Laura???


Canadian Forest Service lessons learned regarding the CBI and NBR from Montana and
Canada (Vern) after meeting with Carl Keys:

To imprive estimates of forest floor fuel consumption on large wildfires… to explore
methods of us
ing EO to refine carbon emission estimates directly.

CBI
-
general average burn conditions of stands. It boreal fuel types it ma be correlated
with the NBR and may reflect fire severity. CBI answers
-

has fire altered site biophysical
conditions? Provides ma
gnitude of change from pre
-
fire conditions. May stratify CBI
into ordinal classes: L,M. H severity. Area burned by severity class.

Fire severity
-

reflects fuel consumption which be measured in terms of depth of burn
consumed or emitted.

CBI, selecting si
tes that are homogenous that are 90x90 (based on NBR), range of
variation within burn, intended for quick assessment.

How are they going to sample this year? Test CBI versus NBR relationship in boreal
fuel types, relationship between fuel consumption and

CBI or NBR. They will be in
Yukon and Northwest Territories.


Merritt’s stuff: Fire and peatlands. Yippee!!! Four ways to measure fuel consumption.
Before/after (pins or TH), mass unburned


mass burned (mass loss). TAU looking for a
recalcitrant e
lement compared to a element that combusts easily, LOI (Merritt’s method)


Techniques: DfNBR. Wagtendonk et al (2004). B7
-
loss moisture, B4
-
loss of
vegetation. Essentially testing vegetation


char.


How doest dNBR represent burn severity? (Verbyla,

CET
-
comparison of CBI/dNBR)

How does dNBR represent fuel consumption?(CET
-
based on soil samples and OM depth
measures, Verbyla, graduate student, Ted Schuur?), ESK/MT/NF will do this in AK in
’05 and at ’95, and ’99 sites). Remote sensors think these ARE
N’T related… but we
need to have a couple of papers that SHOW this (so that people will stop telling us to use
the CBI all the time.

How does CBI represent burn severity/fuel consumption? (CET
-

in 04 & 05, based on
OM soil samples and OM depth measures. E
SK/Mt?NF will do this in AK in 05 and at
95 and 99, TH/UAF will do this for 2004 burns using TH pre
-
burn info). Maybe this
should be a paper, where we pool all our data to test if there is a relationship between fuel
consumption and CBI. Then, if not, wh
at can we create that will help us scale fuel
consumption.


What should our basic set of measurements for the 2005 filed season?

Field: CBI
-
(Alaska modified),ground layer fuel consumption
-
(before/after [th and pins],
mass(ub)
-
mass [cores processed by ho
rizon?] (b), Tau and LOI (Jen Harden’s
FROSTFIRE paper), depth to min at additional points, Dyrness and Norum,


Remote Sensing: dNBR, active fire mapping for date stamping , fire type
(flaming/smoldering) and fire intensity (FRP), aboveground fuel consump
tion (ocular
assessment, diamter and density of trees), other (OM/Soil moisture)


Summer field plans… Remote sensing tools for determining field sites. Hotspots,
Nancy’s icky fuel’s map, NBR


CBI measurements: Alaska modified (Jennifer Allen), Canadian g
roup using the
unchanged CBI. Adding


What are we going to name ourselves? North American Boreal Forest Fire Fuel
Consumption Projects Team (BorCon)


Develop meta data set.

present data and results of summer data collections in Jan (in Edmunton)

proposa
ls
-

meta analysis from NSF???

Russians, Doug McRae or S. Conrad, if we get a post
-
doc perhaps having them focused
on synthesis, and possible novel field collection (in Russia?)

Field trip for remote
-
sensing. Ron, Eric, and Dave Verbyla.

Products:


Journ
al articles to present combined results of AK and Canadian data and
analyses from 2005 data collections….. CBI versus fuel consumption


Proposals:

-
Meta analysis for NSF (Merritt and Teresa)

-
Coordination of NASA and CCRS (Eric and Tim

)


Development of

peet consumption model


Further develop RS collaborations within the group


IBFRA meeting plans


Possible special issues for related pubs