Abstract The southern coast of Gunungkidul, which is adjacent to the subduction zone, prone various coastal hazards. increasing number visitors beach leads more exposure and increases risks. This study aims determine hazards in Siung Beach, Yogyakarta. A high-resolution aerial image DEM were acquired using a low-cost Unmanned Aerial Vehicle. images processed Structure from Motion (SfM) photogra...

A 2D laser-scanner was deployed at the high tide runup limit of a pure gravel beach (Loe Bar, Cornwall, England) to measure high-frequency (2.5 Hz) swash hydrodynamics and topographic changes during an energetic wave event. Measurements performed with the laser-scanner were corrected to compensate for levelling and orientation errors, and a variance threshold was applied to separate the beach t...

In this research, experimental and numerical studies of water waves in a wave tank are analyzed how to find the optimum beach slope for simulation is also investigated. First, with aid (flap type), different amplitudes created laboratory, data generated measured by probes. Then, simulations performed Ansys Fluent industrial software. The VOF method used model two-phase flow. results compared ex...

Coastal erosion of sandy beaches is a global problem that threatens ecosystems and coastal communities. Beach nourishment one the commonly implemented mitigation strategies, using beach compatible sediment from various borrow sources placed on back in littoral system. However, geotechnical properties different can vary. Sediment characteristics influence post-nourishment equilibration, slope, s...

Beach nourishment is a soft engineering technique that used to combat coastal erosion. To assess the efficacy of beach program on northwest coast Lord Howe Island, remotely coordinated drone-based monitoring was undertaken at Lagoon Beach. Specifically, hypotheses were tested could increase dune height and width where sand translocated but would not have any long-term impacts other parts beach....

Nest site selection in reptiles can affect the fitness of the parents through the survival of their offspring because environmental factors influence embryo survivorship, hatchling quality, and sex ratio. In sea turtles, nest site selection is influenced by selective forces that drive nest placement inland and those that drive nest placement seaward. Nests deposited close to the ocean have a gr...

This study aimed to determine the tourism suitability index and willingness pay (WTP) for category of beach recreation in Samuh Beach area, Bali. The research method used was descriptive qualitative. parameters value coastal were type, width, current speed, brightness, depth, slope, water base material, velocity, land cover, hazardous biota, availability fresh water. calculation result at activ...

The tourism suitability index (IKW) research conducted at Semawang Beach, Sanur Village, Denpasar, aimed to determine the limiting factors, value of index, and zone utilization coastal area for recreation category. method used is observation survey in field by purposive sampling 4 station points, divided into a beach length 710 m, tourist interviews with as many 50 respondents. data include typ...

A compact commercial Doppler lidar has been deployed in Indianapolis for two years to measure wind profiles and mixing layer properties as part of project to improve greenhouse measurements from large area sources. The lidar uses vertical velocity variance and aerosol structure to measure mixing layer depth. Comparisons with aircraft and the NOAA HRDL lidar generally indicate good performance, ...