Seasonal dune and beach monitoring using photogrammetry from UAV surveys to apply in the ICZM on the Ravenna coast (Emilia-Romagna, Italy)

Scarelli, Frederico M.; Sistilli, Flavia; Fabbri, Stefano; Cantelli, Luigi; Barboza, Eduardo Guimarães; Gabbianelli, Giovanni

doi:10.1016/j.rsase.2017.06.003

Cited by 58 publications

(61 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In this new vision, native dune herbaceous species and bush vegetation need to be preserved along the remaining coastal dune belts, which are the only physical barriers to protect the inland from marine ingression and washover events. In our case, the forest fire and the current erosion rates affecting the area (Scarelli et al, ) have generated the conditions for an inland retreat of the forest leaving more space for coastal dunes. The forest renaturalization, by encouraging gradual natural renewal of native species, will create dynamic conditions and formation of different transition habitat types, counteracting the loss of biodiversity occurred by the fire.…”

Section: Resultsmentioning

confidence: 81%

Forest fire effects on groundwater in a coastal aquifer (Ravenna, Italy)

Giambastiani

Greggio

Nobili

et al. 2018

Hydrological Processes

View full text Add to dashboard Cite

We examined the fire-induced changes in groundwater recharge rate. This aspect is particularly important in the case of large forested areas growing over a coastal aquifer affected by saltwater intrusion. In the Ravenna coastal area (Italy), pine forests grow on coastal dune belts, overlying a sandy unconfined aquifer, which is strongly affected by marine ingression. Three groundwater profiles across the forest and perpendicular to the coastline were monitored for groundwater level, physical, and chemical parameters. The aims were to define groundwater quality, recharge rate, freshwater volume, and highlight change, which occurred after a forest fire with reference to pre-fire conditions. Analytical solutions based on Darcy Law and the Dupuit Equation were applied to calculate unconfined flow and compare recharge rates among the profiles. The estimated recharge rates increased in the partially and completely burnt areas (219 and 511 mm year −1 , respectively) compared with the pristine pine forest area (73 mm year −1 ). Although pre-fire conditions were similar in all monitored profiles, a post-fire decrease in salinity was observed across the burnt forest, along with an increase in infiltration and freshwater lens thickness. This was attributed to decrease canopy interception and evapotranspiration caused by vegetation absence after the fire. This research provided an example of positive forest fire feedback on the quantity and quality of fresh groundwater resources in a lowland coastal aquifer affected by saltwater intrusion, with limited availability of freshwater resources. The fire provided an opportunity to evaluate a new forest management approach and consider the restoration and promotion of native dune herbaceous vegetation.

show abstract

Section: Resultsmentioning

confidence: 81%

Forest fire effects on groundwater in a coastal aquifer (Ravenna, Italy)

Giambastiani

Greggio

Nobili

et al. 2018

Hydrological Processes

View full text Add to dashboard Cite

show abstract

“…with the Lidar derived data uncertainty. In comparison with error estimates of drone products reported by recent studies, the resulting RMSE values of the drone DEM compared to the traditional RTK GPS profile surveys are comparable (Casella, 2014(Casella, & 2016Dohner et al, 2016) or higher (Turner et al, 2016;James et al, 2017;Scarelli et al, 2017). This is attributed to manual flights and inappropriate GCP selections which were unidentifiable due to image resolution at the survey altitude.…”

Section: Discussion 20mentioning

confidence: 52%

“…A commercially available photogrammetry software package, specifically Pix4D, was used to stitch the collected UAV photos into one continuous mosaic by matching points within overlapping photos utilizing structure-from-motion (SfM) algorithms. The application of drone based SfM photogrammetry for coastal morphology assessment has been demonstrated recently by the studies of Casella et al, (2014;, Turner et al, (2016), Dohner et al, (2016) and Scarelli et al (2017). Drone photo post-processing followed 30 the step-wise process illustrated in Fig.…”

Section: Drone Survey and Ground Control Points 20mentioning

confidence: 99%

Quick Response Assessment of the Impact of an Extreme Storm Combining Aerial Drone and RTK GPS

Trembanis

Duo

Dohner

et al. 2017

Preprint

View full text Add to dashboard Cite

Abstract. Developing and implementing a quick response post-storm survey protocol has the potential to improve impact assessments of coastal storms. Pre-and post-event surveys are essential to properly quantify the storm impacts on the coast.In this study, a combination of traditional RTK GPS and Unmanned Aerial Vehicle "drone" platform was utilized as part of a coordinated storm response workflow. The comprehensive approach employed in this pilot case study was conducted on the 10 Emilia-Romagna coast (Italy), in the immediate aftermath of an extreme storm event that impacted the shoreline on the 5 th -6 th February 2015 called the "Saint Agatha Storm". The activities were supported by timing information on the approaching storm provided by the regional early warning system. We collected aerial photos from a commercial off-the-shelf drone immediately after the Saint Agatha Storm and generated both orthomosaic and digital elevation models utilizing structure-from-motion photogrammetry techniques. The drone-based survey approach allowed us to quickly survey an area of 0.25 km 2 within a 10-15 minute flight resulting in a ground sampling distance of 2.5 cm/pixel. Flooding and erosion impacts are analyzed and presented for the target study area. Limitations and possible applications for coastal management of the quick response post-storm surveying protocol are highlighted.

show abstract

“…Since the 1980s a number of defence structures have been built and replenishment repeatedly carried out. The artificial supply of sand, and the periodical flattening of the beach by bulldozer have contributed to decreasing erosional rates and widened the beach [2,41,42].…”

Section: Discussionmentioning

confidence: 99%

UAV Photogrammetry and Ground Surveys as a Mapping Tool for Quickly Monitoring Shoreline and Beach Changes

Zanutta

Lambertini

Vittuari

2020

JMSE

View full text Add to dashboard Cite

The aim of this work is to evaluate UAV photogrammetric and GNSS techniques to investigate coastal zone morphological changes due to both natural and anthropogenic factors. Monitoring morphological beach change and coastline evolution trends is necessary to plan efficient maintenance work, sand refill and engineering structures to avoid coastal drift. The test area is located on the Northern Adriatic coast, a few kilometres from Ravenna (Italy). Three multi-temporal UAV surveys were performed using UAVs supported by GCPs, and Post Processed Kinematic (PPK) surveys were carried out to produce three-dimensional models to be used for comparison and validation. The statistical method based on Crossover Error Analysis was used to assess the empirical accuracy of the PPK surveys. GNSS surveys were then adopted to evaluate the accuracy of the 2019 photogrammetric DTMs. A multi-temporal analysis was carried out by gathering LiDAR dataset (2013) provided by the “Ministero dell’Ambiente e della Tutela del Territorio e del Mare” (MATTM), 1:5000 Regional Technical Cartography (CTR, 1998; DBTR 2013), and 1:5000 AGEA orthophotos (2008, 2011). The digitization of shoreline position on multi-temporal orthophotos and maps, together with DTM comparison, permitted historical coastal changes to be highlighted.

show abstract

Seasonal dune and beach monitoring using photogrammetry from UAV surveys to apply in the ICZM on the Ravenna coast (Emilia-Romagna, Italy)

Cited by 58 publications

References 46 publications

Forest fire effects on groundwater in a coastal aquifer (Ravenna, Italy)

Forest fire effects on groundwater in a coastal aquifer (Ravenna, Italy)

Quick Response Assessment of the Impact of an Extreme Storm Combining Aerial Drone and RTK GPS

UAV Photogrammetry and Ground Surveys as a Mapping Tool for Quickly Monitoring Shoreline and Beach Changes

Contact Info

Product

Resources

About