English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Non-navigable rivers and retention ponds play important roles in bufferingcommunities from flooding, yet emergency planners often have no data as to thevolume of water that they can carry before flooding the surrounding. This paperdescribes a practical approach for using an uncrewed marine surface vehicle(USV) to collect and merge bathymetric maps with digital surface maps of thebanks of shallow bodies of water into a unified volumetric model. Thebelow-waterline mesh is developed by applying the Poisson surfacereconstruction algorithm to the sparse sonar depth readings of the underwatersurface. Dense above-waterline meshes of the banks are created using commercialstructure from motion (SfM) packages. Merging is challenging for many reasons,the most significant is gaps in sensor coverage, i.e., the USV cannot collectsonar depth data or visually see sandy beaches leading to a bank thus the twomeshes may not intersect. The approach is demonstrated on a Hydronalix EMILYUSV with a Humminbird single beam echosounder and Teledyne FLIR camera at LakeESTI at the Texas A&M Engineering Extension Service Disaster City complex.

Using an Uncrewed Surface Vehicle to Create a Volumetric Model of Non-Navigable Rivers and Other Shallow Bodies of Water