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environment

423 record(s)

 

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draft

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  • This layer contains the line and polygon features depicting the Land Conservation Council Study Area boundaries according to the Statewide Assessment Report of 1989, with additional information showing historic studies. There are no boundaries for Special Investigations included in this dataset. An additional layer has been created showing later Environment Conservation Council Boundaries and the boundaries of some of the special investigations. Refer to ECC500

  • This layer has been derived from FIRE_HISTORY data and represents the spatial extent of the last fires recorded, primarily on public land. The layer stores details of the last time an area was known to be burnt by wildfire or prescribed burning and represents a consecutive overlay of all FIRE_HISTORY layers, from older fire seasons to the most recent fire seasons. The data will show fire scars but not severity. This data set is current to 2021/22 fire season.

  • The fire severity classification is derived from a classification of a SPOT and Landsat TM woodlands fire severity index to map the fire severity of the February 2009 Victorian bush fires using ground control and air photograph analysis provided by DSE to Ecowise for validation. The classification is the final product derived using SPOT 4/5 satellite imagery with Landsat 5 imagery used on small areas where cloud or where SPOT imagery coverage was unavailable. Five of the eight classes have been labeled based on severity classes provided with the ground survey data. The remaining classes account for vegetation structures with no specific burn severity assigned. The area covered by the classification is approximately 460 by 300 km and is clipped to the extents of the fire effected lands (approximately 400 000 hectares).

  • This layer has been derived from FIRE_HISTORY data and represents the spatial extent of the last fires recorded, primarily on public land. The layer stores details of the last time an area was known to be burnt by wildfire or prescribed burning and represents a consecutive overlay of all FIRE_HISTORY layers, from older fire seasons to the most recent fire seasons. This data set is current to 2021/22 fire season. There is no severity data for Gippsland in this version for season 18/19 and 19/20.

  • This layer represents the spatial extent of fires recorded since 1903 to 2012 primarily on public land. The layer includes wildfire and DSE prescribed burn information. The layer is derived from fire100_{YEAR} dataset, and is a composite of individual fire100_{YEAR} layers from 1900 season to current forming a single dataset. This data set includes fire history records up to 2012 fire season. From 2013 the dataset design has been upgraded and the new data set is called FIRE_HISTORY.

  • This layer represents polygon coverage Bushfire Risk Engagement Areas (BREA) across the entire State of Victoria, generally on both public and private land. BREA is broad land categorisation which provides a prioritisation framework for fuel management engagement and delivery where fire is suitable for managing risk. Generalised boundary layer aligned to areas of bushfire risk and may not correlate to natural, manmade or administrative features. Dataset was created 18 September with from the statewide strategic bushfire management planning process 2017-2019 Dataset last updated 20 April 2017 with changes from WCBRL (per A Boak). Dataset updated 30 Jan 2017 with changes from ECBRL (per F Wilson). Dataset updated 19 August 2016 with changes from MMGBRL (per D Prior).

  • This layer represents the spatial extent of fires recorded since 1903 primarily on public land. The layer includes bushfires and DELWP planned burn information. Since 2006 fire severity data has been included in the Fire History dataset. CFA data on fires occurring on private land has also been included since 2009. This data set was updated in August 2022 and includes season 21/22. No severity data for Gippsland for 18/19 and 19/20 is included in this current version. This dataset presents aggregated historic fire severity classification from 1998 onward for wildfires. It currently has all of the fire sev classification done from FIRE_SEV98 to FIRE_SEV09 as well as Grampians victoria valley complex 2013 and Grampians northern complex 2014 (additional years of severity mapping will be added to this dataset as they become available). Datasets has been reclassified using the Level 2 Classification described in the Post fire Burn Classification Procedure SOP v.1.0 (FEMD, 2014). Season 2019/20 has been included except for Gippsland. Currently 2018/19 is still to be incorporated. Aggregating the old (more detailed) historic severity classes into the current broad level 2 classes is a more conservative approach than aggregating them into the current level 3 classes. . The reason for this approach is that the percentages for the degree of crown scorch do not line-up closely enough to directly transfer the old classes into the new level 3 classes. In all of the classification work documented above, canopy burn remains the highest severity level, canopy scorch is divided up in the levels below this depending on a description or percentage range. In this coverage the most resent (last burnt) severity mapping is displayed, however, where an area has had previous fire events they can be mapped out (interrogated) by using definition query or attribute query or other GIS techniques. Severity classification of non-forest areas: In 2003 (Alpine fire), 2005 (Wilson's Promontory Fire), 2006 (Grampians Ballarat and Moondarra fires), 2007 (Little Desert and Boulder Creek fires) 2009 (Kilmore - Murindindi fires) polygons have been reclassified to the following classes: Burnt = High Severity Scorched and Burnt = High Severity Partially Burnt = Medium Severity Scorched and Unburnt = Low Severity Unburnt = Unburnt Unclassified = Unclassified

  • The vector dataset is based on the filtered version (3x3 pixel filter) of the class fire severity classification raster product as derived from a classification of a SPOT and Landsat TM woodlands fire severity indexes to map the fire severity of the February 2009 Victorian bush fires using ground control and air photograph analysis provided by DSE to Ecowise for validation. The noise filtered classification is the final product derived using SPOT 4/5 satellite imagery with Landsat 5 imagery used on small areas where cloud or where SPOT imagery coverage was unavailable. . The five of the eight classes have been labeled based on severity classes provided with the ground survey data. The remaining classes account for vegetation structures with no specific burn severity assigned. The area covered by the classification is approximately 460 by 300 km and is clipped to the extents of the fire effected lands (approximately 400 000 hectares).

  • This dataset is created by sketching in the current burnt area from field data and linescan data. This data is updated every time the area of the fire is updated during an incident.The area is captured in the incident mapping system eMap.The final fire shape is then combined with the planned burn area data to create the FIRE_HISTORY dataset. This data includes both FFMVIC and CFA fires. . The layer will support fire prevention and suppression activities of DSE, and will be used to generate the FIRE100_{year} fire history datasets. This layer is the source of disturbance datasets used in the analysis of old-growth forest.

  • This layer represents the spatial extent of Strategic Permanent Fuel Breaks defined as a line.