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ALFRESCO Model outputs - linear coupled - Annual

This set of files includes annual model outputs from ALFRESCO, a landscape scale fire and vegetation dynamics model. These specific outputs are from the Integrated Ecosystem Model (IEM) project, and are from the linear coupled version using AR4/CMIP3 climate inputs (IEM Generation 1-AR4) and AR5/CMIP5 climate inputs (IEM Generation 1-AR5).

These outputs include data from model rep 171(IEM Generation 1-AR4) and rep 26 (IEM Generation 1-AR5), referred to as the “best rep” out of 200 replicates. The best rep was chosen through comparing ALFRESCO’s historical fire outputs to observed historical fire patterns. Single rep analysis is not recommended as a best practice, but can be used to visualize possible changes.

Climate models and emission scenarios:

IEM Generation 1-AR4/CMIP3

CCCMA-CGCMS-3.1

MPI-ECHAM5

under the SRES A1B scenario

IEM Generation 1-AR5/CMIP5

MRI-CGCM3

NCAR-CCSM4

under RCP 8.5 scenario

Variables include:

Veg: The dominant vegetation for this cell. Current values are:

0 = Not Modeled

1 = Black Spruce

2 = White Spruce

3 = Deciduous Forest

4 = Shrub Tundra

5 = Graminoid Tundra

6 = Wetland Tundra

7 = Barren / Lichen / Moss

8 = Temperate Rainforest

Age: This the age of the vegetation in each cell. An Age value of 0 means it transitioned in the previous year.

Basal Area: The accumulation of basal area of white spruce in tundra cell, and is influenced by seed dispersal, growth of biomass, climate data, and other factors.

units = m^2 / ha

Burn Severity: This is a categorical burn severity level of the previous burn in the current cell, influenced by fire size and slope. For example, a burn severity value in a file with year 1971 in the file name means that the severity level given to that file occurred in the fire that occurred in year 1970.

0=No Burn

1=Low

2=Moderate

3=High w Low Surface Severity

4=High w/ High Surface Severity

Fire Scar: These are the unique fire scars. Each cell has three values.

Band 1 - Year of burn

Band 2 - Unique ID for the simulated fire for that simulation year

Band 3 - Whether or not the cell was an ignition location for a fire. There will only be 1 ignition cell per fire per year.

0 = not ignition

1 = ignition point

For background on ALFRESCO, please refer to:

Is Alaska's Boreal Forest Now Crossing a Major Ecological Threshold?

Daniel H. Mann, T. Scott Rupp, Mark A. Olson, and Paul A. Duffy

Arctic, Antarctic, and Alpine Research 2012 44 (3), 319-331

http://www.bioone.org/doi/abs/10.1657/1938-4246-44.3.319

Simple

Date (Revision)
2017-10-24
Edition
1.0.0
Credit
Alec Bennett
Credit
Michael Lindgren
Credit
Tom Kurkowski
Credit
Scott Rupp
Credit
This research is funded by the Arctic Landscape Conservation Cooperative, Western Alaska Landscape Conservation Cooperative, and Northwest Boreal Landscape Conservation Cooperative (LCCs) and the Alaska Climate Science Center.
Status
Completed
Point of contact
  Scenarios Network for Alaska and Arctic Planning - ( )
Maintenance and update frequency
As needed
Theme
  • wildfires
Keywords
  • vegetation
Use constraints
License
Other constraints
https://creativecommons.org/licenses/by/4.0/
Spatial representation type
Grid
Denominator
30000
Metadata language
eng
Character set
UTF8
Topic category
  • Climatology, meteorology, atmosphere
Begin date
1900-01-01
End date
2100-12-31
N
S
E
W
thumbnail


Reference system identifier
EPSG:3338

Date

Number of dimensions
2
Dimension name
Row
Dimension size
3650
Resolution
1000  meter
Dimension name
Column
Dimension size
2100
Resolution
1000  meter
Cell geometry
Area
Distribution format
  • ( )

OnLine resource
ALFRESCO Model outputs - linear coupled - Annual ( WWW:LINK-1.0-http--link )

Web accessible folder of model output

Hierarchy level
Dataset
File identifier
53b35453-7b88-4ea7-8321-5447f8926c48 XML
Metadata language
English
Character set
UTF8
Date stamp
2023-08-20T14:53:24
Metadata standard name
ISO 19115:2003/19139
Metadata standard version
1.0
Point of contact
  Scenarios Network for Alaska and Arctic Planning - ( )
 
 

Overviews

overview

Spatial extent

N
S
E
W
thumbnail


Keywords

wildfires

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