Digital Shoreline Analysis System (DSAS)重大更新
“ 河口海岸相关研究人员都知道,USGS的DSAS数字岸线分析系统是进行岸线研究的重要工具,然而这个工具已经很多年没有更新了,最近USGS发布了DSAS的最新v5.0版本,最重要的更新就是能够适配ArcGIS10.4,5,6了,终于不用专门为了用DSAS装老版本ArcGIS了”
废话少说,直接上干货
01
DSASv5.0下载安装
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首先打开DSAS主页,网址如下:
https://www.usgs.gov/centers/whcmsc/science/digital-shoreline-analysis-system-dsas?qt-science_center_objects=0#qt-science_center_objects
下载软件
转到DSAS下载页面,下载DSASAddin_v5.zip
然后就安装成功啦,打开ArcGIS,就可以看到DSAS可以加载了
再介绍一种安装方法:
打开ArcMap之后,从Customize-Add-In Manager对DSAS插件进行管理
这样就可以安装插件
从上面也可以对DSAS进行删除
02
DSASv5.0新功能
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Advanced baseline placement options: Baselines located onshore, offshore, midshore (new!) or any combination of baseline orientations are now accepted.
增强的基线位置选项:基线可以是岸线内,岸线外,也可以和岸线重合了
Attribute Automator: a tool for easily adding required and optional attribute fields to shoreline and baseline data.
自动添加属性表,可以很方便的给岸线、基线添加所需的字段信息:
Rates returned as feature class: rate information is automatically spatially joined to DSAS transects for faster visualization.
变化率作为要素类存储,可以用于更好的进行可视化
Data visualization: rates of change are added to the map view with pre-set color ramps for rapid display and interpretation of results.
变化率可以加入地图可视化效果中,如下图所示,属性表中为变化率信息,图中为变化率的可视化效果
Beta shoreline forecasting: future shoreline horizons calculated with uncertainty bands for advanced interpretation of forecasted changes.
岸线变化预测,可以进行10年、20年的检测
Summary report: a text file is generated each time rate calculations are run capturing all DSAS settings, input data used for analysis, and a detailed summary of statistics including overall averages, maximum and minimum, as well as averaged erosion and accretion.
总结报告:岸线计算后会生成一个总结报告,报告的存储位置在这里:
更多DSAS相关文章请参考往期推送: