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Product pages » Tree Structural Characteristics

Tree Structural Characteristics

Last modified by Bec Trevithick on 2013/03/27 13:51

Tree structural characteristics (attribute data and field photos) - AusCover super sites

Abstract or summary

Field data on tree structural characteristics can be used for the calibration and validation of LiDAR derived products of tree height, canopy height profiles and allometrically derived Diameter Breast Height (DBH).

Links to the data

 Data LinkDescriptor
DOI Dataset digital object identifier - not yet available
GeoNetwork GeoNetwork record - not yet available
Shapefile Shapefile of attribute data collected in the field
KMZ KMZ file of attribute data collected in the field
Field photos Thredds folder of imagery
Field Protocol Field protocol wiki page

Shapefile/KMZ file attribute metadata

Data Field

Description (units)

Format

supersite

AusCover calibration/validation site

Text

obs_time

Date and time of observation

Date Time Stamp

longitude

Longitude of tree location. Typically refers to plot centre, standard AusCover variable radius plots. Can refer to individual tree for full surveys, as in belt and fixed radius plots (decimal degrees)

Float

latitude

Latitude of tree location. Typically refers to plot centre, standard AusCover variable radius plots. Can refer to individual tree for full surveys, as in belt and fixed radius plots (decimal degrees)

Float

observers

Names of field observers

Text

factor

Basal area wedge factor used for tree selection for variable radius plots

Float

transect_type

Categorical descriptor of sampling method – variable radius refers to standard AusCover protocol, belt or fixed radius refers to full surveys.

Text

tree

Tree identifier

Integer

live_dead

Categorical data –live/dead

Text

dbh_30

Diameter of trunk at 30 cm height from foot of tree (cm)

Integer

no_stems_130

Number of stems for trees with split trunks at breast height

Integer

dbh_130

Geometric mean? Calculated as the total of all stems at breast height (cm)

Integer

height_first_branch

Height from ground to lowest main branch, ignoring split trunk stems (m)

Float

height

Height of tree (m)

Float

crown_x

Diameter of major crown axis (m)

Float

crown_y

Diameter of axis perpendicular to major crown axis (m)

Float

trunk

??

Float

bark

Categorical descriptor of bark (smooth, rough, peeling)

Text

species

Species if known

Text

photo

Photo name for THREDDS imagery

Text

obs_key

Unique identifier of site and visit for data management purposes.

Text

Data licence and access rights

ItemDetail
Rights
LicenceCreative Common Attribution (CC-BY) 3.0
AccessWhile every care is taken to ensure the accuracy of this information, the Department of Environment and Resource Management makes no representations or warranties about its accuracy, reliability, completeness or suitability for any particular purpose and disclaims all responsibility and all liability (including without limitation, liability in negligence) for all expenses, losses, damages (including indirect or consequential damage) and costs which might be incurred as a result of the information being inaccurate or incomplete in any way and for any reason.

 

Spatial and Temporal extents

ItemDetail
Spatial coverage (shapefile)AusCover super sites footprints - various sites nationally
Temporal resolutionindividual site visits
Temporal coverageongoing
Sensor & platformField measurements
ItemDetail
Spatial representation typevector point
Spatial reference systemWGS 84

Point of contact

ItemDetail
NameRebecca Trevithick
OrganisationTern AusCover/DISITIA
PositionScientist
Emailrebecca.trevithick@qld.gov.au
RolepointOfContact
AddressRemote Sensing Centre, DSITIA, EcoSciences Precinct
Telephone(07) 3170 5679

Keywords

ThesauriKeyword
GCMDBIOSPHERE > VEGETATION > VEGETATION COVER
CFvegetation_area_fraction
FoREnvironmental Sciences > Ecological Applications = 0501

Data quality

Locational accuracy of the data varies with site and GPS available.  See the data shapefile attributes for details.

Related products

Product link
SLATS star transects
Leaf Area Index (LAI)
Ground Lidar
Hemispherical photography

 

Metadata history

DateDetail
2012-12-11Metadata creation date
Tags:
Created by Bec Trevithick on 2013/03/14 10:19

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