2010 Index of Stream Condition - Bank Full Width Reach polygon features

The ISC2010_BANKFULL_WIDTH_R polygon features represent the width between the top of the lowest bank and the corresponding height on the opposite bank for each River Reach.\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.

ISC2010_BANKFULL_WIDTH_R多边形要素表示每个河段的最低岸顶与对岸对应高度之间的宽度。

维多利亚州的河道状况每五年会通过河道状况指数(Index of Stream Condition，简称ISC)进行一次评估。环境与初级产业部(Department of Environment and Primary Industries，简称DEPI)开发了一套方法，利用遥感数据（具体包括激光雷达(LiDAR)与航空摄影）来评估ISC的物理形态与河岸植被组分。

2010至2013年间实施了一项全州制图项目，以精准制图ISC的物理形态与河岸植被指标。该项目未对其他ISC指标进行评估，此类指标均来自其他数据源。

物理形态与河岸植被指标产品由已制图的矢量、栅格数据，以及针对制图要素的表格汇总统计量共同组成。在本项目语境中，“指标”一词同时指代制图要素与汇总统计量。

本项目所用遥感数据包括分辨率15厘米的真彩色与红外航空摄影，以及四次回波多脉冲激光雷达(LiDAR)数据。依托这些源数据，可衍生出多种栅格数据集，包括数字地形模型、坡度、植被高度与植被覆盖度。其中，数字地形与坡度栅格被用于制图物理形态指标，涵盖河床、岸顶与河道中心线；植被高度与覆盖度栅格则被用于制图河岸植被指标。

项目报告"Aerial Remote Sensing for Physical Channel Form and Riparian Vegetation Mapping"详细说明了本数据集的遥感与制图方法。