National Vegetation Information System (NVIS) Version 7.0 - Key Layers

SummaryThis is a zipped package containing details including dataset title, scale and creation dates for the original attribute and spatial data about the input datasets which were used to create NVISv7.0. This package contains a geodatabase, layer file and a readme file.There are three feature classes contained within this geodatabase:- NVIS7_0_KEY_DSET_EXT - NVIS Key to the sources of the extant data- NVIS7_0_KEY_DSET_PRE - NVIS Key to the sources of the pre1750 data- NVIS7_0_LUT_KEY_DSET - NVIS Lookup Table for history of Key LayersThis package is intended to document and describe the input datasets and assist in dynamic analyses of data quality and gaps in the NVIS extant and pre1750 theme datasets. Important information in the spatial feature class includes the dataset spatial extent (i.e. its "footprint") and dataset number and the state of origin of the underlying dataset. Where more than one dataset have been combined within a footprint, the polygons from each data source are represented separately (particularly in NSW and NT); however, "veg clearing" datasets have not been included directly, to keep the number of polygons manageable. See the real NVIS vector or raster data for such data. Important information in the associated lookup table (NVIS7_0_LUT_KEY_DSET) joined via DATA_SET_NUMBER includes data source (e.g. State and Territory NVIS or gap-fill), dataset name, publication scale and the on-ground range of dates of the vegetation surveyInstructions:Join DATA_SET_NUMBER in the table to DATA_SET_NUMBER in the respective spatial key layer, above.