scispace - formally typeset
Search or ask a question

What are the main methods used to assess the health of coastal dunes? 


Best insight from top research papers

Coastal dune health is assessed using various methods. One approach is the use of high-resolution satellite imagery and machine learning techniques for subpixel classification to identify dune plant species and assess their predictive capacity . Another method involves the use of uncrewed aerial vehicles (UAVs) equipped with laser scanners and high-resolution cameras to rapidly monitor dune elevations at a fine scale and assess vulnerability . Morphological parameters and indicators, such as shoreline indicators and cross-shore profiles, are also used to analyze the temporal and spatial variability of dune morphology and inform about the state and resilience of coastal dunes . Additionally, a novel modeling methodology integrating an expert-based matrix, Bayesian Belief Network, structural equation model, and scenario development method has been proposed to evaluate dune ecosystem services and guide sustainable development in coastal areas . Remote sensing and geospatial techniques are also used to assess land-cover dynamics and monitor vegetation growth and activity in coastal dunes .

Answers from top 5 papers

More filters
Papers (5)Insight
The paper does not provide information about the main methods used to assess the health of coastal dunes.
The paper proposes a novel methodology that integrates an expert-based matrix, a Bayesian Belief Network, a structural equation model, and a scenario development method to assess dune ecosystem services.
The paper does not provide information about the main methods used to assess the health of coastal dunes.
The paper does not provide information about the main methods used to assess the health of coastal dunes. The paper focuses on estimating ground elevation in coastal dunes using high-resolution UAV-LIDAR point clouds and photogrammetry.
The paper does not provide information about the main methods used to assess the health of coastal dunes.

Related Questions

How to sample beetles in sand dunes?5 answersTo sample beetles in sand dunes, various methods can be employed based on the research findings. Studies have utilized pitfall and yellow pan traps for sampling arthropod communities in dune habitats, showing high repeatability among replicates and the ability to discriminate between degraded and undisturbed habitats, different dune types, and annual changes. Sand sampling has been used to study beetle communities in coastal dunes, with factors like dune height, preservation, and disturbance index significantly explaining variations in beetle dominance. Additionally, studies on tenebrionid beetles in the Namib Desert have involved collecting beetles from sand dunes and studying their respiratory patterns in laboratory settings. Acoustic orientation and communication studies on tenebrionid beetles in the Namib Desert have highlighted their sensitivity to substrate sound and responses to wind-induced noise signaling food availability in sand dunes.
How does coastal dune response to sea level rise?5 answersCoastal dunes respond to sea level rise by undergoing translation and progradation, resulting in an increase in dune toe elevation and seaward movement of the dune toe. The growth of dunes is influenced by aeolian transport, which supplies sand to the dunes, and vegetation patterns, which affect the distribution of sand over the foredune. The long-term development of coastal dunes can contribute to coastal protection against wave attack and flooding. While dunes are generally able to migrate landward and keep pace with slow rates of sea level rise, rapid rates of relative water level rise can lead to overrunning of the foredune by the translating beach and nearshore profile. Sand nourishments and remobilization efforts can be used as management options to mitigate the effects of sea level rise on coastal dune evolution.
How can the management of beach dunes be improved?5 answersThe management of beach dunes can be improved by implementing sustainable management measures and nature-based solutions. These measures include restoring dunes using nature-based solutions and avoiding artificial management actions that can cause degradation of the dunes. Additionally, the technological implementation of centrifugation and precipitation technologies can be used to reduce erosion in beach dunes. It is also important to consider the impact of climate change on coastal dune landscapes and prioritize dune protection and management. Adequate management tools such as grazing can be applied to preserve open-sand ecosystems and pay attention to the aesthetic ecosystem services of mobile dunes. Furthermore, maintaining a wide beach can offer greater protection from dune erosion. By adopting these management strategies, decision makers can guide the appropriate measures for dune restoration and conservation.
What are the most effective indicators to evaluate the health of coastal dunes?4 answersCoastal dunes are fragile ecosystems that provide important services such as storm protection and hosting diverse species. Evaluating the health of coastal dunes requires effective indicators. Several studies have explored different indicators to assess the success of dune restoration projects. These indicators include geomorphological, taxonomic, and functional traits at different spatial scales. Additionally, the morphological parameters of dunes, such as dune crest height, dune toe position, and berm width, have been used to inform about the state and resilience of coastal dunes. Unmanned aerial vehicles (UAVs) have also been used to monitor coastal dunes, providing high-quality digital surface models (DSMs) for assessing topographic changes. Furthermore, UAV photogrammetry combined with laser scanning has been used to monitor dune elevations, including vegetated areas, to assess the vulnerability of coastal zones. Overall, a combination of these indicators and monitoring techniques can provide a comprehensive evaluation of the health of coastal dunes.
What are the different methods for assessing salinity intrusion?5 answersMethods for assessing salinity intrusion include field, laboratory, and computer-based techniques for investigation. These methods involve studying processes, measurement, prediction, and management of seawater intrusion (SI). Numerical simulation and laboratory sand-tank experimentation are commonly used to understand SI processes, such as mixing zones, saltwater upconing, and heterogeneity effects. Intensive measurement campaigns are needed to accurately delineate interfaces and their movement in response to coastal aquifer stresses. In terms of predicting the spatial distribution of seawater intrusion, different interpolation methods have been investigated, including Empirical Bayesian Kriging (EBK), Global Polynomial Interpolation (GPI), Inverse Distance Weighting (IDW), and Local Polynomial Interpolation (LPI). Among these methods, IDW has been found to be the most accurate in predicting groundwater electrical conductivity associated with seawater intrusion. Physical modeling using resistivity methods has also been used to monitor seawater intrusion.
What are the methods used to conduct water analysis in sea shore and sanctuaries?3 answersWater analysis in sea shore and sanctuaries can be conducted using various methods. Some of the methods mentioned in the abstracts include Energy dispersive X-ray fluorescence (EDXRF) technique with pre-concentration using chelating agents and organic phases, potentiometric stripping analysis, and on-line preconcentration with the use of chelation concentration systems. These methods allow for the determination of trace elements such as Pb, Cd, Zn, Fe, Mn, Co, Ni, Cu, and As in sea water samples. Other techniques mentioned in the abstracts include atomic absorption spectroscopy, anodic stripping voltammetry, inductively coupled plasma atomic emission spectroscopy (ICP AES), and inductively coupled plasma mass spectrometry (ICP MS). These methods provide accurate and precise results for the analysis of water samples from sea shore and sanctuaries.