2010 Index of Stream Condition - Bare Ground 100m Section Summary Table

The ISC2010_BARE_GROUND_S table is the Statistical Summary table for the Bare Ground Metric at the 100m Section level.\n\nThe ISC2010_BARE_GROUND_S table is designed to JOIN to the ISC2010_RIVER_CENTRELINES_S 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.

ISC2010_BARE_GROUND_S表为100米河段尺度下裸地指标（Bare Ground Metric）的统计汇总表。

ISC2010_BARE_GROUND_S表可与ISC2010_RIVER_CENTRELINES_S要素类进行关联连接。

维多利亚州每5年便会借助河流状况指数（Index of Stream Condition, ISC）对河道状况开展评估。环境与第一产业部（Department of Environment and Primary Industries, DEPI）研发了一套方法体系，依托遥感数据——尤其是激光雷达（LIDAR）与航空摄影数据——来评估ISC的物理形态（Physical Form）与河岸植被（Riparian Vegetation）两项组成部分。

2010至2013年间实施了一项全州范围制图项目，旨在精准绘制ISC的物理形态与河岸植被指标。该项目未对其余ISC指标进行评估，相关数据均来自其他渠道。

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

本次项目使用的遥感数据包括分辨率15厘米的真彩色与红外航空摄影数据，以及四次回波多脉冲激光雷达数据。依托该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（Slope）、植被高度与植被覆盖度。数字地形与坡度栅格数据被用于绘制河道床面、岸顶与河道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绘制河岸植被指标。

题为"Aerial Remote Sensing for Physical Channel Form and Riparian Vegetation Mapping"的项目报告详细阐述了本数据集的遥感与制图方法。