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On May 17, 2024 at 2:31:31 PM +1000, Link Digital:

Updated description of NSW post-fire debris flow susceptibility map from
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’. The report will be available soon.
to
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

Added resource NSW Debris flow probability-Logistic regression model output (classified) to NSW post-fire debris flow susceptibility map

Added resource Data Quality Statement to NSW post-fire debris flow susceptibility map

Added resource ArcGIS REST Service: NSW Debris flow probability to NSW post-fire debris flow susceptibility map

Added resource Post-fire debris flows in NSW South Wales - Susceptibility modelling and implications for management to NSW post-fire debris flow susceptibility map

Deleted resource Data Quality Statement from NSW post-fire debris flow susceptibility map

Deleted resource NSW Debris flow probability-Logistic regression model output (classified) from NSW post-fire debris flow susceptibility map

              
    
          
          
        
        
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            31   "notes": "Debris flows are extremely damaging and dangerous  31   "notes": "Debris flows are extremely damaging and dangerous 
            32 post-fire hazards that can cause significant short- and long-term  32 post-fire hazards that can cause significant short- and long-term 
            33 impacts to rivers and aquatic ecosystems, water quality, and  33 impacts to rivers and aquatic ecosystems, water quality, and 
            34 infrastructure. However, they are relatively poorly documented in NSW.  34 infrastructure. However, they are relatively poorly documented in NSW. 
            35 High-resolution aerial imagery highlights significant debris flow  35 High-resolution aerial imagery highlights significant debris flow 
            36 activity in parts of NSW severely impacted by the 2019/20 Black Summer  36 activity in parts of NSW severely impacted by the 2019/20 Black Summer 
            37 bushfires, specifically the Tuross, Tumut and Lake Burragorang  37 bushfires, specifically the Tuross, Tumut and Lake Burragorang 
            38 catchments which were mapped in detail. This inventory of debris flow  38 catchments which were mapped in detail. This inventory of debris flow 
            39 occurrences was used to train and validate a predictive logistic  39 occurrences was used to train and validate a predictive logistic 
            40 regression model using key predictor variables slope, fire severity,  40 regression model using key predictor variables slope, fire severity, 
            41 aridity, geology and soil erodibility. The model outputs can inform  41 aridity, geology and soil erodibility. The model outputs can inform 
            42 assessments of future potential hazards to threatened aquatic species,  42 assessments of future potential hazards to threatened aquatic species, 
            43 remote infrastructure such as roads and properties, and drinking water  43 remote infrastructure such as roads and properties, and drinking water 
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            46 Susceptibility modelling and implications for management\u2019. The  46 debris flows in NSW: Susceptibility modelling and implications for 
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