2010 Index of Stream Condition - Vegetation Width Reach Summary Table

The VEGETATION_WIDTH_R table is the Statistical Summary table for the Vegetation Width Metric at the Reach level.\n\nThe ISC2010_VEGETATION_WIDTH_R table is designed to JOIN to the ISC2010_RIVER_CENTRELINES_R feature class.\n\nRiver condition in Victoria is assessed every 5 years using the Index of Stream Condition (ISC). The Department of Environment and Primary Industries (DEPI) developed a methodology to assess the Physical Form and Riparian Vegetation components of the ISC using remote sensing data, specifically LIDAR and aerial photography. \n\nA State Wide mapping project was undertaken in 2010-13 to accurately map the Physical Form and Riparian Vegetation metrics of the ISC . Other ISC metrics were not assessed in the project and were derived from other sources.\n\nThe Physical Form and Riparian Vegetation Metric products are a combination of mapped Vector and Raster data as well as Tabular Summary Statistics about the mapped features. In the context of the project, the term Metrics is used to refer to both the mapped features and the summary statistics. \n\nRemote sensing data used includes 15cm true colour and infra-red aerial photography and four return multi-pulse LiDAR data. This source data was used to derive a variety of Raster data sets including Digital Terrain Models, Slope, Vegetation Height and Vegetation Cover. The Digital Terrain and Slope rasters were used to map Physical Form metrics including Stream Bed, Top of Bank and River Centre Lines while the Vegetation Height and Cover rasters were used to map the Riparian Vegetation metrics.\nThe Project Report "Aerial Remote Sensing for Physical Channel Form and Riparian Vegetation Mapping" describes the remote sensing and mapping approach used to create this data set.

VEGETATION_WIDTH_R表格为河段尺度植被宽度指标的统计汇总表。
ISC2010_VEGETATION_WIDTH_R表格可与ISC2010_RIVER_CENTRELINES_R要素类进行关联连接。
维多利亚州每5年采用溪流状况指数（Index of Stream Condition, ISC）对河流健康状况开展评估。环境与第一产业部（Department of Environment and Primary Industries, DEPI）研发了一套评估方法，依托遥感数据（尤其是激光雷达（LiDAR）与航空摄影）对ISC的物理形态与河岸植被组分进行评估。
2010-2013年实施了全州范围制图项目，以精准制图ISC的物理形态与河岸植被指标。本项目未对其余ISC指标进行评估，相关指标数据取自其他渠道。
物理形态与河岸植被指标产品整合了矢量（Vector）与栅格（Raster）制图数据，以及针对制图要素的表格统计摘要。在本项目语境下，“指标”一词同时指代制图要素与统计汇总数据。
本次研究使用的遥感数据包括15cm分辨率真彩色与红外航空摄影，以及四回波多脉冲激光雷达（LiDAR）数据。基于上述源数据，可衍生出多种栅格数据集，包括数字地形模型（Digital Terrain Models）、坡度、植被高度与植被覆盖度数据。其中，数字地形与坡度栅格数据被用于制图溪流河床、岸顶与河流中心线等物理形态指标，而植被高度与覆盖度栅格数据则被用于制图河岸植被指标。
项目报告《航空遥感在河道物理形态与河岸植被制图中的应用》（Aerial Remote Sensing for Physical Channel Form and Riparian Vegetation Mapping）详述了用于构建本数据集的遥感与制图技术方案。