LiDar and its Applications Part 10 – Flood Prevention

Share this Article

Flood Plain

Floods have various impacts on environmental ecosystems. Some of these can be positive, while others are very detrimental. Flooding is a natural ecological process that plays an integral role in ensuring biological productivity and diversity within a flood plain. There are a myriad of impacts in the detrimental sense. This typically includes environmental degradation. Flood damage is usually the most extensive and difficult to repair within the environment. Flooding directly impacts the health and well-being of wildlife and lifestock. A list of problems associated with flooding includes riverbank erosion and sedimentation, the dispersal of nutrients and pollutants, restructuring of surface and groundwater resources, as well as landscape editing of habitats. So how can we use LiDar to mitigate some of the problems with floods, and maybe use floods to our benefit?

We have outlined the importance of risk analysis within our series a number of times so far. In flood modeling, small changes in elevation are the difference between a high risk flood zone and low risk. LiDar is used to model floodplain morphology. A floodplain is an area of low lying flat land that is seasonally submerged by overspill from neighboring rivers, lakes, or swamps. Based on elevation levels, we can predict a good amount of flood risk before a flood occurs.

New Orleans Hurricane Katrina Flood Map

Flood risk evaluation has a lot of nuances to the overall problem. There lies a lot of uncertainties and typical oversight from observed data. This is most difficult to solve when we are analyzing the LiDar data from 3D terrains of flat lands. Flat lands have extremely small changes within their land surface elevation models. The presence of man made structures also significantly changes the flood distribution and variable flow of a flood. In order to analyze flood risks in flat lands, we focus our attention to LiDar and its capabilities in micro-topography.

We have briefly explained micro-topography before. Micro-topography and LiDar analysis allows us to measure micro changes within topological maps. We can use this data from our Digital Terrain Models as well as Digital Elevation Models to now make better predictions of ebbs and flows within a flood, or the likelihood of a flood to even occur. A good river and floodplain description is possible using high resolution input data. Advancements in modeling and remote sensing technologies such as LiDar make it possible to generate high resolution DEMs at a reasonable cost. We can produce DEMs with accuracy less than ±25 cm, depending on the land cover, slope, flight parameters and environmental conditions.

DEMs for microtographic analysis in wetlands

The ability to analyze land in a microscale fashion is so useful for this field of study. Within the larger context of 3D data, being able to go from the macroscale to microscale is of utmost importance. The ability to use this for our prevention of major destruction is important. We cannot take care of unexpected large scale random events, but most of the predictable events can be taken care of.

Join the discussion of this and other 3D printing topics at 3DPrintBoard.com.

Share this Article


Recent News

How does PLA Color Influence Mechanical Properties in FDM 3D Printing?

SmarTech Patent Reports Provide New Insights into Corporate Strengths and Strategies



Categories

3D Design

3D Printed Art

3D Printed Food

3D Printed Guns


You May Also Like

Interview with the Director General of CECIMO, Filip Geerts, on Connecting the 3D Printing Industry

We’re very interested in connecting the 3D printing industry and have in a series of articles looked at organizations that are trying to bring us all together. We will need...

nScrypt and Sciperio Secure US Patent for Scalable Hybrid 3D Printing System

Florida manufacturer nScrypt develops high-precision micro-dispensing and direct digital manufacturing equipment and solutions for a range of industries. Just a few months ago, its research and development think tank Sciperio, which specializes in cross-disciplinary...

Titomic Licenses Two CSIRO Patents for 3D Printing Titanium Piping, Signs Acquisition Agreement with FTT

Renowned for its metal Kinetic Fusion (TKF) technology, Australian 3D printing company Titomic recently signed an MoU with China’s largest manufacturer and global exporter of titanium powder in order to secure a high quality...

3D Printing News Briefs: January 19, 2019

Welcome to the first edition of 3D Printing News Briefs in 2019! We took a brief hiatus at the beginning of the new year, and now we’re back, bringing you...


Shop

View our broad assortment of in house and third party products.


Services & Data

Subscribe To Our Newsletter

Subscribe To Our Newsletter

Join our mailing list to receive the latest news and updates from our 3DPrint.com.

You have Successfully Subscribed!