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Fire Severity Estimates: 2001 Survey Line Burn

General Information
Data Package:
Local Identifier:knb-lter-bnz.322.20
Title:Fire Severity Estimates: 2001 Survey Line Burn
Alternate Identifier:DOI PLACE HOLDER
Abstract:

Field-based estimates of fire severity for 85 plots located near the Tanana River in the Survey Line Burn. Composite Burn Index estimates were taken during June-August 2002. The locations of each plot are stored as differentially corrected GPS files and as an ArcGIS point shapefile. Digital aerial photography of the post-fire area from August and September 2002 are in the data base. Database also includes remotely sensed fire severity indices of the entire Survey Line Burn including the Normalized Burn Ratio from a 21-July-2002 Landsat ETM+ image and the differenced Normalized Burn Ratio from a 6-June-2001 pre-fire Landsat ETM+ image and the post-fire 21-July-2002 Landsat ETM+ image.

Short Name:knb-lter-bnz.322.20
Publication Date:2007-12-20
For more information:
Visit: http://www.lter.uaf.edu/data/data-detail/id/322

Time Period
Begin:
2002-06-18
End:
2002-08-12

People and Organizations
Contact:Data Manager (Bonanza Creek LTER) [  email ]
Creator:Epting, Justin 
Creator:Verbyla, Dave L. (Senior Investigator)
Organization:Bonanza Creek LTER

Data Entities
Data Table Name:
322_FireSeverity_Survey_Line_Burn_2002.txt
Description:
Estimates of fire severity for 85 plots located near the Tanana River in the Survey Line Burn.
Detailed Metadata

Data Entities

Data Table

Data:https://pasta-s.lternet.edu/package/data/eml/knb-lter-bnz/322/20/024313da3b505afea94b229363b0e887
Name:322_FireSeverity_Survey_Line_Burn_2002.txt
Description:Estimates of fire severity for 85 plots located near the Tanana River in the Survey Line Burn.
Number of Columns:24

Table Structure
Object Name:322_FireSeverity_Survey_Line_Burn_2002.txt
Text Format:
Number of Header Lines:1
Record Delimiter:\n
Line Delimiter:\n
Orientation:column
Simple Delimited:
Field Delimiter:\t
Quote Character:"

Table Column Descriptions
 DATAFILENBRdNBRCBIX (UTM NAD27 ZONE6)Y (UTM NAD27 ZONE6)95% Horizontal precision (Mean +/- 2 std.dev.)VEGCLASSVEG_TYPESubstrate Consumed-CBI LITTERSubstrate Consumed-CBI DUFFCBI Shrubs-CBI consumedCBI Shrubs-CBI %LIVE/SPROCBI Large shrub/small tree-CBI RegenCBI Large shrub/small tree-CBI %GREEN_SMACBI Large shrub/small tree-CBI %BLACK_SMACBI Large shrub/small tree-CBI CHAR_HEIGHCBI Large Trees-CBI %GREEN-BIGCBI Large Trees-CBI %BLACK-BIGCBI Large Trees-CBI CHAR_(M)_-SUM CBICOUNTBLANKCBImeanNOTES
Column Name:DATAFILE  
NBR  
dNBR  
CBI  
X (UTM NAD27 ZONE6)  
Y (UTM NAD27 ZONE6)  
95% Horizontal precision (Mean +/- 2 std.dev.)  
VEGCLASS  
VEG_TYPE  
Substrate Consumed-CBI LITTER  
Substrate Consumed-CBI DUFF  
CBI Shrubs-CBI consumed  
CBI Shrubs-CBI %LIVE/SPRO  
CBI Large shrub/small tree-CBI Regen  
CBI Large shrub/small tree-CBI %GREEN_SMA  
CBI Large shrub/small tree-CBI %BLACK_SMA  
CBI Large shrub/small tree-CBI CHAR_HEIGH  
CBI Large Trees-CBI %GREEN-BIG  
CBI Large Trees-CBI %BLACK-BIG  
CBI Large Trees-CBI CHAR_(M)_-  
SUM CBI  
COUNTBLANK  
CBImean  
NOTES  
Definition:Name differentially corrrected Trimble GPS data fileNormalized Burn Ratio for pixel plot is nearest using Landsat ETM+ scene 21July2002 differenced Normalized Burn Ratio for pixel plot is nearest using Landsat ETM+ scenes: NBR6June2001 - NBR21July2002 Composite Burn Index Score UTM False EastingUTM Northing95% Horizontal precision (Mean +/- 2 std.dev.)Post-fire vegetation class modified from Viereck level III classification field notes on vegetation typeLitter CBI scoreDuff CBI scoreRoots consumed CBI scoreResprouting CBI score for low shrubsCBI score for regeneration of large shrubs/small treesCBI score for percent green of large shrubs/small treesCBI score for percentblack of large shrubs/small treesCBI score for char height of large shrubs/small treesCBI score for percent green of large treesCBI score for percent black of large treesCBI score for char height of large treesSum of CBI scores from all stratacount of any strata that did not existCBI score as mean CBI from all stratafield notes on site conditions
Storage Type:string  
float  
float  
float  
float  
float  
string  
String  
String  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
float  
Integer  
float  
String  
Measurement Type:nominalnominalrationominalratiorationominalnominalnominalnominalnominalnominalnominalnominalnominalnominalnominalnominalnominalnominalnominalrationominalnominal
Measurement Values Domain:
DefinitionName differentially corrrected Trimble GPS data file
DefinitionNormalized Burn Ratio for pixel plot is nearest using Landsat ETM+ scene 21July2002
UnitdNBRscaledby1000
Typereal
Min0.000 
Max150.000 
DefinitionComposite Burn Index Score
Unitmeter
Typereal
Unitmeter
Typereal
Definition95% Horizontal precision (Mean +/- 2 std.dev.)
DefinitionPost-fire vegetation class modified from Viereck level III classification
Definitionfield notes on vegetation type
DefinitionLitter CBI score
DefinitionDuff CBI score
DefinitionRoots consumed CBI score
DefinitionResprouting CBI score for low shrubs
DefinitionCBI score for regeneration of large shrubs/small trees
DefinitionCBI score for percent green of large shrubs/small trees
DefinitionCBI score for percentblack of large shrubs/small trees
DefinitionCBI score for char height of large shrubs/small trees
DefinitionCBI score for percent green of large trees
DefinitionCBI score for percent black of large trees
DefinitionCBI score for char height of large trees
DefinitionSum of CBI scores from all strata
Unitdimensionless
Typereal
Min0.000 
Max5.000 
DefinitionCBI score as mean CBI from all strata
Definitionfield notes on site conditions
Missing Value Code:    
Code-9999
ExplMissing Value
      
Codemissing
ExplMissing Value
                                  
Accuracy Report:                                                
Accuracy Assessment:                                                
Coverage:                                                
Methods:                                                

Data Package Usage Rights

Data Use

This work has been produced as part of the Long Term Ecological Research Program and data users should adhere to the Data Use Agreement of the Long Term Ecological Research Network.

Citation

It is considered a matter of professional ethics to acknowledge the work of other scientists. Thus, the Data User should properly cite the Data Set in any publications or in the metadata of any derived data products that were produced using the Data Set. Citation should take the following general form: Creator(s), Year of Data Publication, Title of Dataset, Publisher, Dataset identifier, Dataset URL, Dataset DOI. For Example: Van Cleve, Keith; Chapin, F. Stuart; Ruess, Roger W. 2016. Bonanza Creek Experimental Forest: Hourly Temperature (sample, min, max) at 50 cm and 150 cm from 1988 to Present, Bonanza Creek LTER - University of Alaska Fairbanks. BNZ:1, http://www.lter.uaf.edu/data/data-detail/id/1. doi:10.6073/pasta/725db90d86686be13e6d6b2da5d61217.

Acknowledgement

The Data User should acknowledge any institutional support or specific funding awards referenced in the metadata accompanying this dataset in any publications where the Data Set contributed significantly to its content. Acknowledgements should identify the supporting party, the party that received the support, and any identifying information such as grant numbers. For example: Data are provided by the Bonanza Creek LTER, a partnership between the University of Alaska Fairbanks, and the U.S. Forest Service. Significant funding for collection of these data was provided by the National Science Foundation Long-Term Ecological Research program (NSF Grant numbers DEB-1636476, DEB-1026415, DEB-0620579, DEB-0423442, DEB-0080609, DEB-9810217, DEB-9211769, DEB-8702629) and by the USDA Forest Service, Pacific Northwest Research Station (Agreement # RJVA-PNW-01-JV-11261952-231).

Notification

The Data User will notify the Data Set Contact when any derivative work or publication based on or derived from the Data Set is distributed.

Collaboration

The Data Set has been released in the spirit of open scientific collaboration. Data Users are thus strongly encouraged to consider consultation, collaboration and/or co-authorship with the Data Set Creator.

Disclaimer

While substantial efforts are made to ensure the accuracy of data and documentation contained in this Data Set, complete accuracy of data and metadata cannot be guaranteed. All data and metadata are made available in its present condition. The Data User holds all parties involved in the production or distribution of the Data Set harmless for damages resulting from its use or interpretation.

Keywords

By Thesaurus:
Disturbancewildfires, burn severity, survey line fire

Methods and Protocols

These methods, instrumentation and/or protocols apply to all data in this dataset:

Methods and protocols used in the collection of this data package
Description:

Methods

Field sampling was between June and August 2002 for the Survey Line burn (1 year after the fire). We used a modified version of the Composite Burn Index (CBI) to estimate burn severity in the field (Epting et al. 2005). The index was modified by the removal of fields irrelevant to Alaskan forests as well as fields requiring prior knowledge of local pre-fire conditions. The modification improves efficiency in data collection, and more accurately reflects Alaskan burn conditions The CBI method was originally developed in Montana where deep organic soils are scarce and depth of fine roots can be below the organic horizon. In Alaska, deep organic soils are common in black spruce ecosystems and fine roots may be concentrated in the upper portion of the duff horizon. Since the consumption of fine roots could lead to above spectral changes as plants are stressed or die, we modified the CBI for the duff substrate score. In our modification, duff charring was used only if less than 25% of the fine roots were consumed by fire. Each area was first surveyed using aerial photography to locate vegetation patches that were homogeneous in burn severity. Each patch was greater than 60 m by 60 m in area; we avoided sampling smaller patches that would not be resolvable on satellite imagery. Large homogenous patches were then selected with a goal of representing the entire range of burn severity . A 15-m circular plot was established in the center of each patch. Within each plot, the burn severities of five vertical strata were visually estimated: the forest floor, herb/low shrub, tall shrub, intermediate trees and canopy trees. For each of the five strata, a discrete value between 0 and 3 was recorded in 0.5 unit increments. A value of 0 corresponded to no change caused by fire, while a value of 3 indicated maximum change (for example, complete removal of duff layer or complete shrub foliage consumption). Values were then averaged across all strata to create a Composite Burn Index score for each plot as a continuous variable ranging between 0.0 and 3.0 This mean Composite Burn Index score was used in our evaluation of the remotely sensed indices. Plots were accessed by boat, so most plots were located close to the Tanana River. All plot locations were estimated using a Trimble Geoexplorer-3 GPS receiver with the locations differentially corrected using base station data. The horizontal precision (mean +/- 2Std. Dev.) was less than 3 meters for all plot locations, after differential correction of GPS data.

Sampling Area and Study Extent
Sampling Description:

Sampling Frequency

once

Sampling Extent:
Sampling Site: 
Description:SurveyLineBurn-GIS -- Survey Line Burn. Area burned in 2001 south of BNZ LTER site and south of Tanana River. Exact location of the burn can be seen on the GIS NBR or dNBR rasters in the database.. Site alternate names:
Site Coordinates:
Longitude (degree): -148.32Latitude (degree): 64.655

Time Period
Begin:
2002-06-18
End:
2002-08-12

People and Organizations

Publishers:
Organization:Bonanza Creek LTER
Address:
Boreal Ecology Cooperative Research Unit ,
University of Alaska Fairbanks,
P.O. Box 756780 ,
Fairbanks, AK 99775 USA
Phone:
907-474-6364 (voice)
Phone:
907-474-6251 (fax)
Creators:
Individual: Justin Epting
Individual: Dave L. Verbyla
Position:Senior Investigator
Address:
Department of Forest Sciences University of Alaska Fairbanks O'Neill Bldg,
Fairbanks, AK 99775 United States
Phone:
(907) 474-5553 (voice)
Phone:
(907) 474-6184 (fax)
Email Address:
dlverbyla@alaska.edu
Web Address:
http://www.uaf.edu/snre/faculty/verbyla/
Organization:Bonanza Creek LTER
Address:
Boreal Ecology Cooperative Research Unit ,
University of Alaska Fairbanks,
P.O. Box 756780 ,
Fairbanks, AK 99775 USA
Phone:
907-474-6364 (voice)
Phone:
907-474-6251 (fax)
Email Address:
uaf-bnz-im-team@alaska.edu
Web Address:
http://www.lter.uaf.edu
Contacts:
Organization:Bonanza Creek LTER
Position:Data Manager
Address:
Boreal Ecology Cooperative Research Unit ,
University of Alaska Fairbanks,
P.O. Box 756780 ,
Fairbanks, AK 99775 USA
Phone:
907-474-6364 (voice)
Phone:
907-474-6251 (fax)
Email Address:
uaf-bnz-im-team@alaska.edu
Web Address:
http://www.lter.uaf.edu
Metadata Providers:
Organization:Bonanza Creek LTER
Position:Data Manager
Address:
Boreal Ecology Cooperative Research Unit ,
University of Alaska Fairbanks,
P.O. Box 756780 ,
Fairbanks, AK 99775 USA
Phone:
907-474-6364 (voice)
Phone:
907-474-6251 (fax)
Email Address:
uaf-bnz-im-team@alaska.edu
Web Address:
http://www.lter.uaf.edu

Temporal, Geographic and Taxonomic Coverage

Temporal, Geographic and/or Taxonomic information that applies to all data in this dataset:

Time Period
Begin:
2002-06-18
End:
2002-08-12
Sampling Site: 
Description:Dataset geographic description information is unavailable. {datafile/geoCoverage is empty}
Site Coordinates:
Longitude (degree): -148.32Latitude (degree): 64.655

Project

Parent Project Information:

Title:The Bonanza Creek LTER
Personnel:
Individual: Keith Van Cleve
Organization:Bonanza Creek LTER
Position:Lead Principal Investigator
Role:Principal Investigator
Individual: F.S. Stuart Chapin
Organization:Bonanza Creek LTER
Position:Lead Principal Investigator
Address:
Department of Biology and Wildlife; Institute of Arctic Biology: University of Alaska Fairbanks 193 Arctic Health P.O. Box 757000,
Fairbanks, AK 99775 United States
Phone:
(907) 455-6408 (voice)
Phone:
(907) 474-6967 (fax)
Email Address:
terry.chapin@alaska.edu
Web Address:
http://terrychapin.org/
Role:Principal Investigator
Individual: Roger W. Ruess
Organization:Bonanza Creek LTER
Position:Lead Principal Investigator
Address:
Institute of Arctic Biology University of Alaska Fairbanks P.O. Box 757000,
Fairbanks, AK 99775-0180 United States
Phone:
(907) 474-7153 (voice)
Phone:
(907) 474-6967 (fax)
Email Address:
rwruess@alaska.edu
Web Address:
http://www.iab.uaf.edu/~roger_ruess/
Role:Principal Investigator
Funding:

NSF Grant numbers DEB-1636476, DEB-1026415, DEB-0620579, DEB-0423442, DEB-0080609, DEB-9810217, DEB-9211769, DEB-8702629

USDA Forest Service, Pacific Northwest Research Station (Agreement # RJVA-PNW-01-JV-11261952-231)

Maintenance

Maintenance:
Description:

Status

Completed

Frequency:
Other Metadata

Additional Metadata

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        |     |     |___text '\n        '
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        |     |     |        \___attribute 'id' = 'scoreranging0to3'
        |     |     |___text '\n      '
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