There are two Northern Territory (NT) (presence and absence point) Weed Datasets describing the recorded weed status at a single point in time. The datasets are compiled from various weed surveys, including the publicly available WeedMate app. Some data is sourced from herbarium records, historical weed records and other types of surveys, including vegetation and land condition monitoring.
The NT Weed Datasets are largely a compilation of data derived from GPS locations attributed to describe weed species presence/absence, size, density, population demographics and treatments of those infestations. The datasets are used to assist the Weed Management Branch (WMB), Northern Territory Government (NTG) and other stakeholders to identify existing weed infestations and new incursions. This information is also used for weed management planning and to guide weed control and compliance programs.
The datasets are spatially located in Geocentric Datum of Australia 1994 (GDA94) datum as decimal degrees, and the file formats are ESRI Shapefile and file geodatabase. The data custodian is the Director of the Weed Management Branch.
It is important to note that weed infestations frequently change, either reducing with successful control or increasing where control programs are not in place. Accordingly, recorded observations are valid only for the date of the record. Further survey may be required to determine the current infestation status.