Coastal IFOA Canopy Dieback Monitoring

The NSW Natural Resources Commission (NRC) engaged the Hawkesbury Institute for the Environment, Western Sydney University to develop a repeatable, scientifically robust and low-cost method to monitor landscape-scale forest canopy dieback and identify principal drivers of dieback. The Western Sydney University team collaborated with remote sensing research scientists from NSW Department of Climate Change, Energy, the Environment and Water (DCCEEW).  The method was tested for forests impacted by the 2023 ‘flash drought’ in the mid-north coast region of NSW. High-resolution PlanetScope satellite imagery was used to manually classify canopy conditions into three categories: dead, partially dead, and live. This classification was then extended across the broader pilot study area using publicly available Sentinel-2 satellite imagery and a machine learning approach.   Read the report here: Monitoring of sudden canopy dieback in coastal forests – Final report Read the summary research note here: Monitoring canopy dieback in NSW North Coast forests – Research note  This web map displays the spatial outputs of this project at 10m spatial resolution, showing monthly canopy condition on public land for the period April 2019 to December 2023.  The monthly spatial data for the pilot region is also available as 57 Tifs on the SEED portal for use in Geographic Information Systems (GIS).  Reference layers provided include the 2019/20 Fire Extent and Severity Mapping (available on the SEED portal) and the last year of harvest in five-yearly groups (extracted from Forestry Corporation of NSW Open Data Site).  To view a dataset, click on the eye icon. The entire layer group hierarchy must be turned on for the layers to be visible. You can navigate the map by scrolling and clicking using your mouse. You can use the ‘Compare View’ to see monthly canopy dieback maps and the 2019/20 Fire Extent and Severity Mapping map side by side, with a matching map extent.  -----------------------------------------------------------------------  To access data or leave feedback on your experience with this web site or its data, follow this link:  NRC Contact Page  To leave feedback on your experience with the Spatial Collaboration Portal, follow this link (account creation required):  Spatial Collaboration Portal Feedback

新南威尔士州自然资源委员会（NSW Natural Resources Commission, NRC）委托西悉尼大学霍克斯伯里环境研究所开发一套可重复、科学严谨且低成本的方法，用于监测景观尺度的森林冠层衰退情况，并识别冠层衰退的主要驱动因素。西悉尼大学团队与新南威尔士州气候变化、能源、环境与水利部（NSW Department of Climate Change, Energy, the Environment and Water, DCCEEW）的遥感研究科学家展开了合作。

该方法针对新南威尔士州中北海岸地区受2023年“突发干旱”影响的森林进行了测试。研究团队使用高分辨率PlanetScope卫星影像，将冠层状况人工划分为枯死、部分枯死和存活三类。随后，借助公开可用的Sentinel-2卫星影像与机器学习方法，将该分类结果扩展至更大范围的试点研究区域。

可在此查阅本项目报告：《沿海森林突发冠层衰退监测——最终报告》；亦可在此查阅研究概要说明：《新南威尔士州北海岸森林冠层衰退监测——研究简报》。

本网页地图展示了本项目的空间产出成果，空间分辨率为10米，呈现了2019年4月至2023年12月期间公共土地上的月度冠层状况。试点区域的月度空间数据同样可在SEED门户网站获取，共包含57个TIFF格式文件，可供地理信息系统（Geographic Information Systems, GIS）使用。

配套提供的参考图层包括2019/2020年火灾范围与烈度制图（可在SEED门户网站获取），以及以五年为一组统计的末次采伐年份数据（数据提取自新南威尔士州林业公司开放数据平台）。

如需查看数据集，可点击眼睛图标。需启用完整的图层组层级，方可显示各图层。您可通过鼠标滚轮缩放、点击拖拽来浏览地图。您还可使用“对比视图”功能，并排查看月度冠层衰退地图与2019/2020年火灾范围及烈度制图，二者将保持一致的地图范围。

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