| Field | Value |
|---|---|
Title |
NSW post-fire debris flow susceptibility map |
Abstract |
Debris flows are extremely damaging and dangerous post-fire hazards that can cause significant short- and long-term impacts to rivers and aquatic ecosystems, water quality, and infrastructure. However, they are relatively poorly documented in NSW. High-resolution aerial imagery highlights significant debris flow activity in parts of NSW severely impacted by the 2019/20 Black Summer bushfires, specifically the Tuross, Tumut and Lake Burragorang catchments which were mapped in detail. This inventory of debris flow occurrences was used to train and validate a predictive logistic regression model using key predictor variables slope, fire severity, aridity, geology and soil erodibility. The model outputs can inform assessments of future potential hazards to threatened aquatic species, remote infrastructure such as roads and properties, and drinking water reservoirs and associated infrastructure. For more information, please read the accompanying report, ‘Post-fire debris flows in NSW: Susceptibility modelling and implications for management’, or check out this link: https://www.environment.nsw.gov.au/topics/water/estuaries/estuaries-research/bushfire-affected-waterways |
Resource locator |
|
Show on SEED Web Map |
Name: Show on SEED Web Map Protocol: WWW:DOWNLOAD-1.0-http--download Description: Display dataset on SEED's map Function: download |
Data Quality Statement |
Name: Data Quality Statement Protocol: WWW:DOWNLOAD-1.0-http--download Description: Data quality statement for NSW Post-fire Debris flow susceptibility map Function: download |
NSW Debris flow probability-Logistic regression model output (classified) |
Name: NSW Debris flow probability-Logistic regression model output (classified) Protocol: WWW:DOWNLOAD-1.0-http--download Description: The logistic regression model's final output values underwent classification into three distinct classes. The classification cut-off ranges were defined as follows: Values ranging from Zero to 48% were classified as 1 (Zero/Low probability), 48% to 72% were assigned as 2 (Moderate probability), and 72% to 100% were identified as 3 (High probability). To gain a clearer understanding of how the cut-offs were defined, refer to the accompanying report, ‘Post-fire debris flows in NSW: Susceptibility modelling and implications for management’. The report will be available soon. Function: download |
ArcGIS REST Service: NSW Debris flow probability |
Name: ArcGIS REST Service: NSW Debris flow probability Protocol: WWW:DOWNLOAD-1.0-http--download Description: An ArcGIS Server web service represents a GIS resource such as a map, locator, or image that is located on an ArcGIS Server site and is made available to client applications. Depending on the layers enabled, this web service allows a user to query its features and/or visualise the dataset. This service is aimed at advanced geographical information users, and will require access to geographical information system (GIS) software such as ArcGIS/ArcMap. Function: download |
Post-fire debris flows in NSW South Wales - Susceptibility modelling and implications for management |
Name: Post-fire debris flows in NSW South Wales - Susceptibility modelling and implications for management Protocol: WWW:DOWNLOAD-1.0-http--download Description: The purpose of the report is to outline the methods used in developing and validating the model, while also discussing the implications of the susceptibility map for land and water management. Function: download |
WMS Service |
Name: WMS Service Protocol: WWW:DOWNLOAD-1.0-http--download Description: WMS Service Function: download |
Unique resource identifier |
|
Code |
f4b9f20a-65d5-4b64-8803-55c8beb1a67d |
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/f4b9f20a-65d5-4b64-8803-55c8beb1a67d |
Purpose |
Post-fire management planning |
Status |
Completed |
Spatial representation type |
grid |
Spatial reference system |
|
Code identifying the spatial reference system |
4283 |
Spatial resolution |
5 m |
Additional information source |
Debris flow mapping within study areas (Tuross, Tumut, and Burragorang) for training models relied on satellite imageries dated subsequent to the 2019-2020 NSW bushfire. High-resolution (~7 cm) NearMap acquisitions of aerial imagery across a broad swathe of lower Tuross catchment (12/03/2020 and 23/01/2021) and Lake Burragorang region (17/01/2021) allowed mapping of discrete post-fire debris flows. This inventory of known debris flow occurrences, supplemented by debris flow mapping undertaken by the Natural Resources Commission (NRC) - NSW Government (2023) in upper Tuross catchment (17/01/2022 - 14/02/2022) and in the Tumut catchment (03/01/2021 - 09/10/2021). |
| Field | Value |
|---|---|
Topic category |
| Field | Value |
|---|---|
Keyword set |
|
keyword value |
HAZARDS-Fire SOIL-Erosion WATER-Quality |
Originating controlled vocabulary |
|
Title |
ANZLIC Search Words |
Reference date |
2008-05-16 |
Geographic location |
|
West bounding longitude |
141 |
East bounding longitude |
154 |
North bounding latitude |
-37.7 |
South bounding latitude |
-28 |
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 |
2021-01-03 |
End position |
N/A |
Dataset reference date |
|
Resource maintenance |
|
Maintenance and update frequency |
As needed |
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 |
The debris flow susceptibility map comprises a classified raster dataset generated through logistic regression modelling approach. For more information, please read the accompanying report, ‘Post-fire debris flows in NSW: Susceptibility modelling and implications for management’. |
| Field | Value |
|---|---|
Limitations on public access |
|
| 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 |
2024-06-27T04:19:22.512407 |
Metadata language |
|