| Field | Value |
|---|---|
Title |
Historic Woody Vegetation Mapping of the NSW Wheat-belt - Band B. VIS_ID 4183 |
Alternative title(s) |
NarrabriWheatbelt_E_4183 |
Abstract |
This map and reports (cited below) present the results of research on the rate of change of native woody vegetation in the Central New South Wales wheatbelt. The study was carried out over three years and analysed vegetation change between the 1980s and 2000. The project tested methods to map changes in native woody vegetation using direct visual inspection of readily available Landsat TM satellite imagery. NPWS mapping of native woody vegetation types within the wheatbelt provided the 1980s baseline information for the study. Clearing was identified on the satellite images and digitised. The resulting clearing maps were used to produce updated maps of remaining native woody vegetation for each monitoring period. Systematic validation of the mapping was done by comparison with specially flown, fine-scale aerial photography. Validation results showed that the mapping consistently and accurately distinguished between clearing and areas of no-change with typical accuracy rates of approximately 95%. [VIS_ID 4183] |
Resource locator |
|
Data Quality Statement |
Name: Data Quality Statement Protocol: WWW:DOWNLOAD-1.0-http--download Description: Data quality statement for Historic Woody Vegetation Mapping of the NSW Wheat-belt - Band B. VIS_ID 4183 Function: download |
Vegetation NarrabriWheatbelt 4183 |
Name: Vegetation NarrabriWheatbelt 4183 Protocol: WWW:DOWNLOAD-1.0-http--download Description: Download Data Package Function: download |
Unique resource identifier |
|
Code |
4df12a56-3012-46dc-843a-a02fce7533d1 |
Presentation form |
Map digital |
Edition |
1 |
Dataset language |
English |
Metadata standard |
|
Name |
ISO 19115 |
Edition |
2016 |
Dataset URI |
https://datasets.seed.nsw.gov.au/dataset/4df12a56-3012-46dc-843a-a02fce7533d1 |
Purpose |
To map the rate of change of native woody vegetation in the Central New South Wales wheatbelt. |
Status |
Completed |
Spatial representation |
|
Type |
vector |
Spatial reference system |
|
Code identifying the spatial reference system |
4283 |
Equivalent scale |
1:None |
Additional information source |
Sivertsen,D & Metcalfe,L. (1995). Natural vegetation of the southern wheat-belt (Forbes & Cargelligo 1:250000 map sheets). Cunninghamia v4(1):103-128Bedward M., Sivertsen D.P., Metcalfe L.M., Cox S.J. & Simpson C.S.(2001). Monitoring the rate of native woody vegetation change in the New South Wales wheatbelt. Final Project Report to the Natural Heritage Trust / Environment Australia. (NPWS Sydney). |
| Field | Value |
|---|---|
Topic category |
| Field | Value |
|---|---|
Keyword set |
|
keyword value |
BOUNDARIES-Biophysical ECOLOGY-Landscape FLORA-Native VEGETATION |
Originating controlled vocabulary |
|
Title |
ANZLIC Search Words |
Reference date |
2008-05-16 |
Geographic location |
|
West bounding longitude |
146.80547 |
East bounding longitude |
149.91374 |
North bounding latitude |
-31.006655 |
South bounding latitude |
-29.99434 |
Vertical extent information |
|
Minimum value |
-100 |
Maximum value |
2228 |
Coordinate reference system |
|
Authority code |
urn:ogc:def:cs:EPSG:: |
Code identifying the coordinate reference system |
5711 |
Temporal extent |
|
Begin position |
1980-01-01 |
End position |
N/A |
Dataset reference date |
|
Resource maintenance |
|
Maintenance and update frequency |
Unknown |
Contact info | |
Contact position |
Data Broker |
Organisation name |
NSW Department of Climate Change, Energy, the Environment and Water |
Telephone number |
131555 |
Email address |
|
Web address |
https://www.nsw.gov.au/departments-and-agencies/dcceew |
Responsible party role |
pointOfContact |
| Field | Value |
|---|---|
Lineage |
Interpretation of various scales (1:50,000,1:80,000,1:85,000) of aerial photography used to define boundaries of native woody vegetation. Boundaries then transferred to 1:100 000 scale maps and digitised using Environmental Resource Mapping System E-RMS. Landsat 1:250,000 satellite images used to define the boundaries of areas cleared of native woody vegetation which were transferred to then digitised from 1:250,000 maps using E-RMS and ArcInfo. |
| Field | Value |
|---|---|
Limitations on public access |
|
| Field | Value |
|---|---|
Scope |
dataset |
DQ Completeness Commission |
|
Explanation |
The dataset complete with reference to range and field verification. Native vegetation defined as Greater than 5 percent crown cover. Where cover less than 5 percent, remnants were visited in the field before mapping. Treeless remnants only mapped where observed in the field. Remnants less than 10Ha were not mapped. Limited ground truthing possible as much of the vegetation has been cleared, remnants correlated with existing digital data. |
DQ Completeness Omission |
|
Explanation |
The dataset complete with reference to range and field verification. Native vegetation defined as Greater than 5 percent crown cover. Where cover less than 5 percent, remnants were visited in the field before mapping. Treeless remnants only mapped where observed in the field. Remnants less than 10Ha were not mapped. Limited ground truthing possible as much of the vegetation has been cleared, remnants correlated with existing digital data. |
DQ Topological Consistency |
|
Explanation |
The GIS package ERMS was used to do a topological consistency check to ensure all polygons are closed, nodes are formed at intersection of lines, all polygons are labelled once and there are no duplications. After capture, the coverage was checked against original air photomapping and errors corrected. |
DQ Absolute External Positional Accuracy |
|
Explanation |
Precision: Digital data accurate to 100m (deductive estimate). Consistent with cultural (roads) and physical (rivers and dams) attributes at the 1:100 000 map scale. |
DQ Non Quantitative Attribute Correctness |
|
Explanation |
The Title field describes the vegetation category. Very high degree of accuracy at the 1:250 000 scale. Based on extensive ground truthing at the 1:100 000 scale, objective classification using PATN on 1200 sites and Air photo interpretation. |
| Field | Value |
|---|---|
Responsible party |
|
Contact position |
Data Broker |
Organisation name |
NSW Department of Climate Change, Energy, the Environment and Water |
Telephone number |
131555 |
Email address |
|
Web address |
https://www.nsw.gov.au/departments-and-agencies/dcceew |
Responsible party role |
pointOfContact |
| Field | Value |
|---|---|
Metadata point of contact |
|
Contact position |
Data Broker |
Organisation name |
NSW Department of Climate Change, Energy, the Environment and Water |
Telephone number |
131555 |
Email address |
|
Web address |
https://www.nsw.gov.au/departments-and-agencies/dcceew |
Responsible party role |
pointOfContact |
Metadata date |
2024-02-26T13:36:04.277590 |
Metadata language |
|