Brief description
Field measurements were made on the 5th September 2000 along a 90 m long transect for a section of mangroves located between the beach and main road just north of Cape Tribulation (Queensland).
The transect was 90 m long and 10 m wide. The start and end points for the transect were measured using a hand-held GPS. Since tree cover reduced the GPS signal at the start and end points, GPS measurements were taken near the start and end points of the transect using the GPS (where the canopy was more open), then a distance and bearing made to the end points. For trees within the transect area having a circumference at breast height (CBH) greater than 15 cm, their location, CBH and an estimate of height were measured. Only the location was recorded for trees having a CBH below 15 cm (equivalent to a diameter at breast height (DBH) < 5cm). Tree height was measured ad libitum with a hand-held laser system. Mangrove species was also recorded when known.
Lineage
Data Creation
Data collection:
Data were collected using a belt transect that was 90 m long and 10 m wide. For each tree within the transect, circumference at breast height (CBH), location and species (if known) were recorded. Tree height and height of the tallest aerial root were measured ad libitum using a hand-held laser system.
Notes
CreditWe at TERN acknowledge the Traditional Owners and Custodians throughout Australia, New Zealand and all nations. We honour their profound connections to land, water, biodiversity and culture and pay our respects to their Elders past, present and emerging.
The transect was established to support the interpretation of airborne Synthetic Aperture Radar (SAR) data acquired during the NASA JPL PACRIM II Mission to Australia.
Data Quality Assessment Scope
local :
dataset
Data were collected using the line transect method. The location of the base of individual trees was estimated to be within 10 cm of the given values. The circumference at breast height was recorded to the nearest centimeter. Locational accuracy of the start and end points of the transect was based on averaging the coordinates from two hand-held GPS’s (estimated to be within 10 m of the true position) used in an open location, and then using a tape and compass to the start/end points of the transect (which were 5 m and 45 m in length).
Created: 2021-11-11
Issued: 2022-01-17
Modified: 2024-05-07
Data time period: 2000-09-05 to 2000-09-05
text: North of Cape Tribulation, Queensland.
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- URI : geonetwork.tern.org.au/geonetwork/srv/eng/catalog.search#/metadata/b8f701e9-21f6-42e0-be92-f9f7e4bfeb54
- global : b8f701e9-21f6-42e0-be92-f9f7e4bfeb54