Vegetation Survey of Nitmiluk National Park

Index:

Metadata
Citation
Description

Dataset Status
Data Quality
Contact Information
Data Dictionary
Supplementary Information

Metadata Details:

Name:AS/NZS ISO 19115 Geographic Information - Metadata, ANZLIC Metadata Profile

Version:1.0

Date Metadata Extracted:2024-04-26

Date Metadata Last Updated:2013-04-10

Current URL (HTML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=html&metadata_id=D855518F8AAE6B02E040CD9B21444D59

Current URL (XML format) : http://www.ntlis.nt.gov.au/metadata/export_data?type=xml&metadata_id=D855518F8AAE6B02E040CD9B21444D59

Citation

ANZLIC Identifier:D855518F8AAE6B02E040CD9B21444D59

Title: Vegetation Survey of Nitmiluk National Park

Citation Date:2004-12-01

Date Type:creation

Custodian:Department of Environment, Parks and Water Security

Description

Abstract:

This survey describes the vegetation over Nitmiluk National Park in the Northern Territory. The 3 main objectives of the survey were to: 1) To create a vegetation map for Nitmiluk National Park to guide targeted land management. 2) To describe the patterns in vegetation types and significant species in the Park 3) To test and compare methods for generating vegetation maps.

The survey analysed more than 1500 vegetation plots between 200 and 2002. Two separate analyses were undertaken, one concentrating on describing the patterns in the floristic data and the other using GIS data to derive a vegetation map. The resulting landcover map describes 13 vegetation classes; distinguishing the substrate (soil and rock) and structure of vegetation and provides mapping at three different scales, 1:50 000, 1:100 000 and 1:250 000.

Nitmiluk National Park covers an area of 1,000 km2 of mostly rocky country enclosing the upper reaches of the Katherine River. The main park entrance is located approximately 30km from the townsite of Katherine.

ANZLIC Search Words:

biota

imageryBaseMapsEarthCover

Spatial Domain:

Bounding Coordinates:

North Bounding Coordinate:-13.8011

South Bounding Coordinate:-14.4333

East Bounding Coordinate:132.816

West Bounding Coordinate:132.1405

Dataset Status

Dataset ID:

Language:English

Character Set: Latin 1

Progress:completed

Maintenance and Update Frequency:notPlanned

Data Currency Start Date:2000-01-01

Data Currency End Date:2004-12-01

Access Constraint:

Download the spatial data package (contains spatial data, maps and reports) via data.nt.gov.au/

You are licensed to use the DENR geospatial products on the terms and conditions set out in: Creative Commons Attribution 4.0 International Public License (CC BY 4.0) at: creativecommons.org/licenses/by/4.0/legalcode

If you do not agree to the terms and conditions you must not use the geospatial products.

You are free to copy, communicate and adapt the licensed material, provided that you abide by the licence terms (including Attribution) and attribute the licensed material using the statement:

Supplied by the Department of Environment and Natural Resources. Copyright Northern Territory Government.

Data Quality

Lineage:Data Source: Landsat 5 TM imagery - 2 neighbouring scenes 27/04/95 and 24/03/97; 100k DEM sourced from DIPE; NT Airbore Radiometric Data sourced from NT Geological Survey (flown 1974-2002); existing geological and land system mapping (250k) were deemed too course to use.
The final Land Cover Map was derived using eCognition software and mapped at three scales (50k, 100k, 250k) for Nitmiluk National Park using an object-based classification incorporating Landsat TM data, radiometric data and elevation and slope models. The communities mapped using this method are described in reference to habitat data collected from 1364 ground plots and floristic data collected from a further 1557 plots distributed throughout the park. Comparisons with historical land systems mapping is also presented.

Positional Accuracy:

Attribute Accuracy:Each polygon in the 3 land cover datasets contains a label with a series of attributes all based on 13 final classes. Refer to Data Dictionary described in Metadata below. The attribute BESTCLASS is the most likely, most correct class/outcome based on analysis. More detail on the floristic composition and environmental information, for each CLASS, is contained in the associated report.

Logical Consistency:GIS editing tools were used to rectify all overshoots and undershoots in line work. Polygon topology rules applied are; must not overlap, must not have gaps and each polygon has only one label.

Completeness:Dataset and associated technical report was completed in December, 2004.

Contacts

Name Organisation Position Role Phone Fax Email

Data Requests Officer Department of Environment, Parks and Water Security Geospatial Services Branch (on behalf of department) distributor datarequests.depws@nt.gov.au

Name	Organisation	Position	Role	Phone	Fax	Email
Data Requests Officer	Department of Environment, Parks and Water Security	Geospatial Services Branch (on behalf of department)	distributor			datarequests.depws@nt.gov.au

Data Dictionary

Attribute Attribute Description Possible Code Code Description

BAND1-BAND5 Landsat Bands 1 to 5 used in analysis.

BESTCLASS The classification routine provides a probability value that the particular object (polygon boundary), based on the analysis of data belongs to the listed class.

BESTPROB The object in this instance has a probability that it is correct of 70% ( e.g. 0.7 = 70% )

COMPACTNESS An analysis parameter based on shape of object (not size).

FIRE9599 The presence of fire between 1995 and 1999, noting the amount burnt

HEIGHT Elevation in metres derived from a 1:100,000 scale Digital Elevation Model (DEM)

LENGTH An analysis parameter. The length of the object (polygon boundary) at widest point.

NDVI Normalized Difference Vegetation Index (NDVI) is used to measure and monitor plant growth (vigor), vegetation cover, and biomass production from multispectral satellite data. Increasing positive NDVI values indicate increasing amounts of green vegetation. Values here are stretched values from 0-255.

RADIOMET A radiometric map of the Northern Territory has been compiled from airborne radiometric data flown from 1974 ' 2002, by the Northern Territory Geological Survey (NTGS). The values shown are for `total count'.

SLOPE Slope in degrees derived from a 1:100,000 scale Digital Elevation Model (DEM)

SNDCLASS The second most likely class

SNDPROB The probability assigned to the second most likely class. This should always be less than the BESTCLASS.

TEXTURE Texture is based upon the standard deviation, in the 8 surrounding cells, for Landsat band 5. Provides a measure of homogeneity.

THDPROB The probability assigned to the third most likely class.

THIRDCLASS The third most likely class

Supplementary Information

Bibliographic Reference - Carrie Michelle, Craig Hempel and Owen Price. Vegetation Survey of Nitmiluk National Park: Vegetation map and description of the flora, December 2004. Biodiversity Unit, Department of Infrastructure, Planning and Environment, Darwin, Northern Territory.
Report available (pdf download) via Northern Territory Library, hdl.handle.net/10070/244147

This record maintained using the NTLIS Metadata Tool

Attribute	Attribute Description	Possible Code	Code Description
BAND1-BAND5	Landsat Bands 1 to 5 used in analysis.
BESTCLASS	The classification routine provides a probability value that the particular object (polygon boundary), based on the analysis of data belongs to the listed class.
BESTPROB	The object in this instance has a probability that it is correct of 70% ( e.g. 0.7 = 70% )
COMPACTNESS	An analysis parameter based on shape of object (not size).
FIRE9599	The presence of fire between 1995 and 1999, noting the amount burnt
HEIGHT	Elevation in metres derived from a 1:100,000 scale Digital Elevation Model (DEM)
LENGTH	An analysis parameter. The length of the object (polygon boundary) at widest point.
NDVI	Normalized Difference Vegetation Index (NDVI) is used to measure and monitor plant growth (vigor), vegetation cover, and biomass production from multispectral satellite data. Increasing positive NDVI values indicate increasing amounts of green vegetation. Values here are stretched values from 0-255.
RADIOMET	A radiometric map of the Northern Territory has been compiled from airborne radiometric data flown from 1974 ' 2002, by the Northern Territory Geological Survey (NTGS). The values shown are for `total count'.
SLOPE	Slope in degrees derived from a 1:100,000 scale Digital Elevation Model (DEM)
SNDCLASS	The second most likely class
SNDPROB	The probability assigned to the second most likely class. This should always be less than the BESTCLASS.

TEXTURE	Texture is based upon the standard deviation, in the 8 surrounding cells, for Landsat band 5. Provides a measure of homogeneity.
THDPROB	The probability assigned to the third most likely class.
THIRDCLASS	The third most likely class

Metadata : Vegetation Survey of Nitmiluk National Park