Description: <DIV STYLE="text-align:Left;"><DIV><DIV><P STYLE="margin:0 0 14 0;"><SPAN><SPAN>A landslide is the movement of material down a slope. This includes rock, earth, mud and peat. Landslides in Ireland mainly occur on steep mountain slopes. </SPAN></SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN><SPAN>A landslide susceptibility map shows areas where a landslide could occur, how likely it will occur and what causes them. The likelihood is measured from low to high. </SPAN></SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN><SPAN>The map is created using a method called the Unique Condition Unit (UCU). </SPAN></SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN><SPAN>A unique condition unit is an area with a set of ground types. It tells us what the soil type is, what the slope is (angle of the ground) and where water flows. </SPAN></SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN><SPAN>When many landslides occur in a unit, the map will show high landslide susceptibility. </SPAN></SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN>The landslide susceptibility classification map is to the scale 1:50,000</SPAN><SPAN>. </SPAN><SPAN>This means it should be viewed at that scale. When printed at that scale 1cm on the map relates to a distance of 500m.</SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN><SPAN>It is a vector dataset. Vector data portray the world using points, lines, and polygons. A polygon represents an area. </SPAN></SPAN></P><P STYLE="margin:0 0 14 0;"><SPAN>The landslide susceptibility data is shown as polygons. Each polygon gives information on the description of landslide susceptibility (High, Low, Moderately Low etc).</SPAN></P></DIV></DIV></DIV>
Service Item Id: 9dcedb3b2d2046a6b2f8d022c6e317de
Copyright Text: Contains Irish Public Sector Data (Geological Survey Ireland) licensed under a Creative Commons Attribution 4.0 International (CC BY 4.0) licence.