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Investigation:

TG-07 (Keller / Oliveira)

LBA Dataset ID:

TG07_DBH_CAUAXI

Originator(s):

1. ASNER, G.P.
2. PALACE, M.W.
3. KELLER, M.M.
      4. PEREIRA, M.
5. SILVA, J.
6. ZWEEDE, J.C.

Point(s) of Contact:

ORNL DAAC User Services Office Oak Ridge National Laboratory Oak Ridge, Tennessee 37 (ornldaac@ornl.gov)

Dataset Abstract:

Canopy measurements in an undisturbed eastern Amazon forest (Cauxi, Para, Brazil) were derived using a hand-held laser range finder and compared to manual measurements of diameter at breast height (DBH). Parameters reported include:
Crown Width Crown Depth
Tree Height
DBH

Beginning Date:

2000-06-10

Ending Date:

2000-06-22

Metadata Last Updated on:

2012-02-15

Data Status:

Archived

Access Constraints:

PUBLIC

Data Center URL:

http://daac.ornl.gov/

Distribution Contact(s):

ORNL DAAC User Services Office Oak Ridge National Laboratory Oak Ridge, Tennessee 37 (ornldaac@ornl.gov)

Access Instructions:

PUBLIC

Data Access:

IMPORTANT: The LBA-ECO Project website is no longer being supported. Links to external websites may be inactive. Final data products from the LBA project can be found at the ORNL DAAC. Please follow the fair use guidelines found in the dataset documentation when using or citing LBA data.
Datafile(s):

LBA-ECO TG-07 Tree Geometry in an Undisturbed Forest in Cauaxi, Para, Brazil :  http://daac.ornl.gov/cgi-bin/dsviewer.pl?ds_id=1063

Documentation/Other Supporting Documents:

LBA-ECO TG-07 Tree Geometry in an Undisturbed Forest in Cauaxi, Para, Brazil :  http://daac.ornl.gov/LBA/guides/TG07_DBH_Cauaxi.html

Citation Information - Other Details:

Asner, G., M. Palace, M. Keller, M. Pereira, J. Silva, and J. Zweede. 2012. LBA-ECO TG-07 Tree Geometry in an Undisturbed Forest in Cauaxi, Para, Brazil. Data set. Available on-line [http://daac.ornl.gov] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A. http://dx.doi.org/10.3334/ORNLDAAC/1063

Keywords - Theme:

Parameter Topic Term Source Sensor
BIOMASS BIOSPHERE ECOLOGICAL DYNAMICS FIELD INVESTIGATION STEEL MEASURING TAPE
CANOPY CHARACTERISTICS BIOSPHERE VEGETATION FIELD INVESTIGATION LASER RANGE FINDER

Uncontrolled Theme Keyword(s):  TREE CANOPY GEOMETRY

Keywords - Place (with associated coordinates):

Region
(click to view profile)
Site
(click to view profile)
North South East West
Pará Eastern (Belém) Fazenda Cauaxi -3.73130 -3.73130 -48.29060 -48.29060

Related Publication(s):

Asner, G.P., M. Palace, M. Keller, R. Pereira, J.N.M. Silva, and J.C. Zweede. 2002. Estimating canopy structure in an Amazon Forest from laser range finder and IKONOS satellite observations. Biotropica 34(4):483-492.

Data Characteristics (Entity and Attribute Overview):

Data Characteristics:

Canopy structure data are provided as a comma-delimited ASCII file: cauxi_dbh_canopy.csv and include the following data columns:



Record_ID Record ID number (Investigator database ID)

Tree_ID Tree number in field

DBH Diameter at breast height (cm)

rnd_num Random number to determine if height is measured

ht_toc Height to top of canopy (m)

ht_boc Height to bottom of canopy (m)

crown_width Crown width at greatest diameter (m)

canopy_class Canopy class (U = understory, D=Dominant, S=SuperDominant)

notes Notes






Sample data records:</b>

Record_ID,Tree_ID,DBH,rnd_num,ht_toc,ht_boc,crown_width,canopy_class,notes

1,247,39,9,,,,,

2,248,26,7,,,,,

3,249,76,5,,,,,

4,250,20,2,,,,,

5,251,28,3,,,,

6,252,29,8,,,,

7,253,55,2,,,,

8,254,31,9,,,,

9,255,30,0,26.29,20.27,8.7,D

10,256,33,7,,,,

11,257,27,7,,,,

12,258,25,1,22,18.13,7.63,U



Missing values for canopy width are represented by -999.00

Placeholders for missing values for other fields are not included.

Data Application and Derivation:

see Asner, G., Palace, M., Keller, M., Pereira, M., Silva, J., and Zweede, J. (2002), Estimating Canopy Structure in an Amazon Forest from Laser Rangefinder and IKONOS Satellite Observations, Biotropica 34(4): 483-492.

Quality Assessment (Data Quality Attribute Accuracy Report):

Quality Assessment:

Data quality is good; stratified sampling

Process Description:

Data Acquisition Materials and Methods:

see Asner, G., Palace, M., Keller, M., Pereira, M., Silva, J., and Zweede, J. (2002), Estimating Canopy Structure in an Amazon Forest from Laser Rangefinder and IKONOS Satellite Observations, Biotropica 34(4): 483-492.

References:

Asner, G., Palace, M., Keller, M., Pereira, M., Silva, J., and Zweede, J. (2002), Estimating Canopy Structure in an Amazon Forest from Laser Rangefinder and IKONOS Satellite Observations, Biotropica 34(4): 483-492.

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