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bushfire [2018/10/01 15:19]
allchin09 created
bushfire [2019/11/13 09:24] (current)
allchin09 [Description]
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-Test+====== Mapping Burnt Areas in NSW ====== 
 + 
 +===== Description ===== 
 +This project aims to map burnt areas within NSW in a way that is useful for bushwalkers. When vegetation is burnt in a bushfire, it generally removes scrub and makes the area easier to travel through for a few years. Knowing where these recently burnt areas are can then assist in route planning for bushwalks. 
 + 
 +|===== Resources ===== 
 +^Resource^Example^Used for^ 
 +| |[[https://​www.rfs.nsw.gov.au/​fire-information/​fires-near-me|RFS Fires Near Me]]|Knowledge of fires occurance| 
 +|Satellite Imagery|[[https://​eos.com/​landviewer/​|EOS Land Viewer]]|Identifing extent of burnt area| 
 +|GIS|[[https://​www.qgis.org/​en/​site/​|QGIS]]|Creating burnt area polygons| 
 +|???​|???​|Viewing burnt area polygons| 
 +|[[https://​datasets.seed.nsw.gov.au/​dataset/​fire-history-wildfires-and-prescribed-burns-1e8b6|NPWS Fire History]]| | 
 +| |[[https://​hotspots.dea.ga.gov.au/​|DEA Hotspots]]|72 hrs of fire activity| 
 + 
 +===== Process ===== 
 +  * Obtain knowledge for bushfire occurrence - both time and location 
 +    * RFS Fires Near Me will detail any active fires, with either a point or rough polygon indicating its position 
 +    * Looking through old imagery can also lead to burn area identification 
 +  * Capture imagery of burn area 
 +    * Best done with EOS Land Viewer 
 +      * Free service (with some restrictions),​ account required 
 +      * Provides Landsat and Sentinal imagery (only Landsat 8 and Sentinal-2 are of interest) 
 +      * Limit of 10 '​scenes'​ per day - these are the big tiles of satellite imagery 
 +      * Unlimited downloads of '​scene'​ data, but resolution reduced to <10mb file 
 +      * Provides individual bands, including IR and NIR, along with pre-set band combinations - use Shortwave Infrared 
 +    * An alternative is the [[https://​landlook.usgs.gov/​viewer.html|USGS LandLook]] 
 +      * Free service, no account required 
 +      * Also has Landsat and Sentinal imagery 
 +      * Unlimited image views and downloads (need to select geotiff format and geographic spatial reference) 
 +      * Only provides true-colour images, no use of IR or NIR bands 
 +  * Create burn extent polygons 
 +    * Load imagery into QGIS and name file as layer in format of "​[yyyy-mm-dd of capture] [Area]"​ for reference 
 +    * Add polygon by visually inspecting burn area image and capturing full extent within boundary 
 +    * Add field data to polygon such as fire name, area, date of image capture 
 + 
 +===== Examples ===== 
 +An example can be found through the link below, where a geojson file has been imported into an online map. 
 +[[http://​maps.ozultimate.com/?​id=1542036099891|Burnt Areas Map - 20181113]] 
 + 
 +===== To Do ===== 
 +  * Investigate RFS RSS Feed data 
 +    * It appears that they supply multiple feeds relating to fires 
 +    * Their [[http://​www.rfs.nsw.gov.au/​feeds/​majorIncidents.json|Current Incidents Feed (GeoJSON)]] feed appears to be a geojson file of all current fires, which includes points or polygons 
 +    * See if it's worth collecting this data on a regular basis (say weekly) and then compiling into one big database for reference and / or later analysis 
bushfire.1538407156.txt.gz · Last modified: 2018/10/01 15:19 by allchin09