Comparison of airborne LiDAR and shipboard acoustic data in complex shallow water environments: Filling in the white ribbon zone

Kotilainen, Aarno; Kaskela, Anu

doi:10.1016/j.margeo.2017.02.005

Cited by 23 publications

(22 citation statements)

References 18 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Applications of LiDAR technology to bathymetric measurements have been used and developed for a long time (including Enabnit, 1980;Guenther, 1985;Mandlburger et al, 2015), and its reliability has been confirmed in numerous studies (Kinzel et al 2007;Peeri and Philpot, 2007;Kotilainen and Kaskela, 2017), however, devices used in riverbed morphology studies can not be used in relatively simple laboratory tests due to the considerations of measurement accuracy, as well as the size, weight and price of the device. The aforementioned factors were the reason for undertaking work on the independent construction of the device based on prefabricated elements, in which we were guided by the principle of minimizing the size and costs with the best possible reading accuracy.…”

Section: Resultsmentioning

confidence: 99%

Applying Laser Scanning Technology to Studying Alluvial Flume-Bed Topography in Laboratory Conditions

Kiraga

Razumnik

Popek

et al. 2018

ASP.FC

View full text Add to dashboard Cite

The aim of the research was to compare alluvial bed topography description in laboratory conditions using the "traditional", currently applicable method with an original approach, based on LiDAR technology. LiDAR application in local scours shape investigation in based on the grounds of introducing the autonomic measuring module, which, placed above the bed on dedicated controllable arrangement of guideways, describes the landform as a cloud of coordinates. The result of the performed experiment was obtainment of point clouds (x, y, z), reflecting the bed shape before and after local scour formation during twenty measurement series with varying hydraulic conditions. Objects of the study were basic geometry properties of the scour hole and its volume. The measurement with laser scanner technology application allowed for obtaining much more accurate results in shorter time, comparison to disc probe survey, and also relatively fast conversion of numerical data into figures. The device equipped with portable computer, precise stepper motors and dedicated software permitted the introduction of automation into laboratory work. The effect is not only measurements accuracy, but also significant acceleration of data gathering. The adopted grid is characterized by significant density, which-in connection with meaningfully high accuracy-allows very precise surface description. Bed shape can be presented in numerical or graphical form. It must be pointed out that disc probe method application would never give such accuracy as in the case of introducing laser scanning technology in similar studies.

show abstract

Section: Resultsmentioning

confidence: 99%

Applying Laser Scanning Technology to Studying Alluvial Flume-Bed Topography in Laboratory Conditions

Kiraga

Razumnik

Popek

et al. 2018

ASP.FC

View full text Add to dashboard Cite

show abstract

“…In areas with high local seabed heterogeneity (i.e., geodiversity) broad scale data does not capture true diversity of the seafloor and some important features might not appear [28]. In the northern Baltic Sea, for example, large areas of seabed are marked by De Geer moraines that create a unique washboard-like seabed terrain with corresponding sediment and topographical variability [29]. These are not represented in the EMODnet maps.…”

Section: Harmonisation Process and Challengesmentioning

confidence: 99%

“…They commonly appear as unmapped patches forming what is known as the "white ribbon". The cost of surveying these areas is high, owing to the transient (e.g., shoals) and irregular (e.g., submerged rocks) nature of bathymetric features [29]. The lack of seabed substrate data for such areas is problematic especially because coastal areas are subject to extensive human activities (e.g., shipping, dredging, dumping, wind farm construction and aquaculture).…”

Section: European Seabed Substrate Data Coverage and Gapsmentioning

confidence: 99%

See 1 more Smart Citation

Picking Up the Pieces—Harmonising and Collating Seabed Substrate Data for European Maritime Areas

et al. 2019

View full text Add to dashboard Cite

The poor access to data on the marine environment is a handicap to government decision-making, a barrier to scientific understanding and an obstacle to economic growth. In this light, the European Commission initiated the European Marine Observation and Data Network (EMODnet) in 2009 to assemble and disseminate hitherto dispersed marine data. In the ten years since then, EMODnet has become a key producer of publicly available, harmonised datasets covering broad areas. This paper describes the methodologies applied in EMODnet Geology project to produce fully populated GIS layers of seabed substrate distribution for the European marine areas. We describe steps involved in translating national seabed substrate data, conforming to various standards, into a uniform EMODnet substrate classification scheme (i.e., the Folk sediment classification). Rock and boulders form an additional substrate class. Seabed substrate data products at scales of 1:250,000 and 1:1 million, compiled using descriptions and analyses of seabed samples as well as interpreted acoustic images, cover about 20% and 65% of the European maritime areas, respectively. A simple confidence assessment, based on sample and acoustic coverage, is helpful in identifying data gaps. The harmonised seabed substrate maps are particularly useful in supraregional, transnational and pan-European marine spatial planning.

show abstract

“…Working within the intertidal zone has always been a challenge for maritime archaeologists for both excavation and remote sensing survey. While sonar techniques have been the mainstay of marine remote sensing survey and aerial lidar or image-based techniques have been foremost terrestrially, the difficulty of applying remote sensing techniques to the shallow and intertidal zone resulted in the so-called 'white ribbon', a zone extending from the minimum depths for sonar and geophysical survey up to the coastline (Kotilainen and Kaskela 2017). The recent rise in sophisticated photogrammetry algorithms, commonly available software, combined with the increase in computer processing power have had a strong impact on coastal and shallow water archaeology (e.g.…”

Section: Technical Challenges: Shallow Water and Intertidal Zonesmentioning

confidence: 99%

Integrating Aerial and Underwater Data for Archaeology: Digital Maritime Landscapes in 3D

Benjamín

McCarthy

Wiseman

et al. 2019

3D Recording and Interpretation for Maritime Archaeology

View full text Add to dashboard Cite

Archaeologists have aspired to a seamless integration of terrestrial and marine survey since maritime archaeology began to emerge as a distinct sub-discipline. This chapter will review and discuss how 3D technology is changing the way that archaeologists work, blurring the boundaries between different technologies and different environments. Special attention is paid to the integration of data obtained from aerial and underwater methods. Maritime archaeology is undergoing an explosion of site recording methods and techniques which improve survey, excavation and interpretation, as well as management and conservation of material culture, protected sites, and cultural landscapes. An appraisal of methods and interpretive tools is therefore necessary as well as a consideration of how theoretical concepts of maritime landscapes are finding new expressions in practice. A thematic focus is placed on integrating land and sea through case studies of maritime archaeological sites and material which range chronologically from the recent past to several thousand years before present.

show abstract

Comparison of airborne LiDAR and shipboard acoustic data in complex shallow water environments: Filling in the white ribbon zone

Cited by 23 publications

References 18 publications

Applying Laser Scanning Technology to Studying Alluvial Flume-Bed Topography in Laboratory Conditions

Applying Laser Scanning Technology to Studying Alluvial Flume-Bed Topography in Laboratory Conditions

Picking Up the Pieces—Harmonising and Collating Seabed Substrate Data for European Maritime Areas

Integrating Aerial and Underwater Data for Archaeology: Digital Maritime Landscapes in 3D

Contact Info

Product

Resources

About