Trees

Disclaimer

Geoscape Australia believes this publication to be correct at the time of printing and does not accept responsibility for any consequences arising from the use of the information herein. Readers should rely on their own skill and judgement to apply information to particular issues.
This work is copyright. Apart from any use as permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission of Geoscape Australia.

Overview

Trees is a raster dataset representing tree coverage and heights, derived from remotely sensed imagery.

Geoscape Australia welcomes your feedback on the Trees Dataset. We also publish regular product development updates on our website (www.geoscape.com.au).

Release Summary

This product was released to customers on 27 March 2024 with data extracted on 15 March 2024.

  • This release is a full national data population for Version 1.8 of the Trees product, described by the Trees Product Description v1.8.

Any issues that have been identified for this release are described in the Issues section.

This release includes updates for the areas listed in the table below.

Locations of updated areas by State

State

Location

Urban Area (km2)

NSW

Cowra Shire Council

31

NSW

Eurobodalla Shire Council

45

NSW

Kempsey Shire Council

132

NSW

Mid-Coast Council

19

NSW

Port Stephens Council

59

NSW

Wingecarribee Shire Council

58

QLD

Livingstone Shire

4

QLD

Rockhampton Regional

71

SA

The Rural City of Murray Bridge

51

VIC

Banyule City

62

VIC

Boroondara City

36

VIC

Brimbank City

64

VIC

Cardinia Shire

77

VIC

Casey City

284

VIC

Darebin City

42

VIC

Frankston City

84

VIC

Glen Eira City

11

VIC

Greater Dandenong City

135

VIC

Hume City

295

VIC

Kingston City

87

VIC

Knox City

108

VIC

Macedon Ranges Shire

27

VIC

Manningham City

127

VIC

Maroondah City

61

VIC

Melton City

213

VIC

Merri-Bek City

41

VIC

Mitchell Shire

49

VIC

Monash City

81

VIC

Moonee Valley City

26

VIC

Moorabool Shire

39

VIC

Nillumbik Shire

106

VIC

Stonnington City

5

VIC

Surf Coast Shire

24

VIC

Whitehorse City

64

VIC

Whittlesea City

181

VIC

Wyndham City

142

VIC

Yarra Ranges Shire

241

WA

City of Armadale

154

WA

City of Bayswater

35

WA

City of Belmont

40

WA

City of Bunbury

54

WA

City of Canning

65

WA

City of Cockburn

131

WA

City of Fremantle

20

WA

City of Gosnells

108

WA

City of Joondalup

94

WA

City of Kalamunda

117

WA

City of Kwinana

113

WA

City of Mandurah

94

WA

City of Melville

53

WA

City of Nedlands

18

WA

City of Perth

16

WA

City of Rockingham

171

WA

City of South Perth

20

WA

City of Stirling

108

WA

City of Subiaco

6

WA

City of Swan

230

WA

City of Vincent

11

WA

City of Wanneroo

239

WA

Shire of Capel

16

WA

Shire of Dardanup

21

WA

Shire of Harvey

33

WA

Shire of Mundaring

90

WA

Shire of Murray

36

WA

Shire of Peppermint Grove

1

WA

Shire of Serpentine-Jarrahdale

113

WA

Town of Bassendean

10

WA

Town of Cambridge

20

WA

Town of Claremont

5

WA

Town of Cottesloe

4

WA

Town of East Fremantle

4

WA

Town of Mosman Park

4

WA

Town of Victoria Park

18

Total

5,454

^ Location names are derived from intersection with the most recent Local Government Area dataset.

Spatial files of the updated areas are available upon request via support@geoscape.com.au.

Change Notifications

Removal of the ‘Documents’ folder from data packages

From November 2023, Geoscape will be progressively moving product descriptions, guides and reports online to https://docs.geoscape.com.au

Commencing with the May 2024 release, data packages will no longer include the Documents folder.

Issues

New Issues

No new issues to note.

Resolved Issues

No resolved issues to note.

Known Issues

The progress and status of known, ongoing issues are summarised below. For specific and further details on each issue, please refer to the Release Report identified in the ‘Release identified’ column.

Ongoing product issues

Release Identified

Theme - Issue Name

Issue Brief Description

Progress/Resolution

Status

Dec-16

Building - Tree heights near buildings and other trees

Terrain elevation values used in the calculation of tree heights have been found in some cases to be affected by the surrounding tall features such as buildings and other trees.

No update at this time.

Open

Mar-22

Trees over-capture

On Buildings, it has been observed that there are some situations where significant portions of some roofs have been captured as tree features. This is different from actual tree overhang and may be due some combination of building proximity to actual tree features, dark roof colour and/or shadow across roofs. In Dense, Shadowed and Water Areas, the spectral signature of these areas can incorrectly result in features being extracted as trees during remote sensing. Height calculation can help to exclude the majority of these during production, but where heights are determined to be greater than 2 metres they may persist.

We are working with our partner to limit these occurrences, as well as improving our processes to identify and correct the situations where they are present.

Open

Jun-22

Trees restricted to Surface Cover extents

Trees and Surface Cover have been designed to physically align the cells. Since the introduction of new capture methods new capture areas that extend past the raster index are clipped.

This will be investigated and resolved in a future release.

Open

Future Considerations

This section outlines enhancements or changes under consideration, but not planned into a specific release. For further details on future initiatives, please contact Geoscape Support.

Annex A – Release Counts

Trees Theme - Summary

Total coverage of Trees by state

State

Total Area (km2)

ACTNSW

3,256

NT

95

QLD

2,575

SA

334

TAS

288

VIC

1,435

WA

717

National

8,699