Using LiDAR to reconstruct the history of a coastal environment influenced by legacy mining

Yousef, Foad; Kerfoot, W. Charles; Brooks, Colin; Shuchman, Robert A.; Sabol, Bruce M.; Graves, Mark

doi:10.1016/j.jglr.2013.01.003

Cited by 12 publications

(30 citation statements)

References 35 publications

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“…No local water-clarity information is available in the study area during the time of data acquisition, but in general, Lake Superior is an optically complex, oligotrophic case 2 water body [54]. Dominant coastal substrates in the region include high-reflectance white quartz sand derived from Jacobsville sandstone, lower-reflectance gray stamp sands, a product of the region's historic copper mining, and localized cobble fields [55][56][57].…”

Section: Mabel Datamentioning

confidence: 99%

“…A change in actual bathymetry over the intervening two years is also a likely factor, as the project area is characterized by dynamic bedform features, including nearshore sand bars and troughs and offshore shoals likely influenced by migrating sand [72]. The sedimentary regime of Keweenaw Bay has not been fully described, but a key regional sedimentary process occurring along the northern reaches of the Bay is the southwestward long-shore movement and deposition of stamp sands, which eventually migrate laterally to coalesce with deeper, larger bars [55,56]. Keweenaw Bay's exposure to an approximately 230-km northeasterly fetch could also play a significant role in the sediment dynamics of the project area [57].…”

Section: Bathymetry Accuracy Assessmentmentioning

confidence: 99%

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Analysis of MABEL Bathymetry in Keweenaw Bay and Implications for ICESat-2 ATLAS

Forfinski-Sarkozi

Parrish

2016

Remote Sensing

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Abstract:In 2018, the National Aeronautics and Space Administration (NASA) is scheduled to launch the Ice, Cloud, and land Elevation Satellite-2 (ICESat-2), with a new six-beam, green-wavelength, photon-counting lidar system, Advanced Topographic Laser Altimeter System (ATLAS). The primary objectives of the ICESat-2 mission are to measure ice-sheet elevations, sea-ice thickness, and global biomass. However, if bathymetry can be reliably retrieved from ATLAS data, this could assist in addressing a key data need in many coastal and inland water body areas, including areas that are poorly-mapped and/or difficult to access. Additionally, ATLAS-derived bathymetry could be used to constrain bathymetry derived from complementary data, such as passive, multispectral imagery and synthetic aperture radar (SAR). As an important first step in evaluating the ability to map bathymetry from ATLAS, this study involves a detailed assessment of bathymetry from the Multiple Altimeter Beam Experimental Lidar (MABEL), NASA's airborne ICESat-2 simulator, flown on the Earth Resources 2 (ER-2) high-altitude aircraft. An interactive, web interface, MABEL Viewer, was developed and used to identify bottom returns in Keweenaw Bay, Lake Superior. After applying corrections for refraction and channel-specific elevation biases, MABEL bathymetry was compared against National Oceanic and Atmospheric Administration (NOAA) data acquired two years earlier.The results indicate that MABEL reliably detected bathymetry in depths of up to 8 m, with a root mean square (RMS) difference of 0.7 m, with respect to the reference data. Additionally, a version of the lidar equation was developed for predicting bottom-return signal levels in MABEL and tested using the Keweenaw Bay data. Future work will entail extending these results to ATLAS, as the technical specifications of the sensor become available.

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Section: Mabel Datamentioning

confidence: 99%

Section: Bathymetry Accuracy Assessmentmentioning

confidence: 99%

Analysis of MABEL Bathymetry in Keweenaw Bay and Implications for ICESat-2 ATLAS

Forfinski-Sarkozi

Parrish

2016

Remote Sensing

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“…The advantage of multiple-year overflights is that the mosaicked images will allow for estimates of underwater stamp sand bar volume, mass and movement (via difference calculations between different dates; see [31] for a preliminary example). For a check on the accuracy of bathymetric measurements, the LiDAR-derived depths are cross-compared with each other and with georegistered NWRI (National Water Resources Institute) SONAR-derived depths and sediment classification maps [32].…”

Section: Charts Overflights and Mass Calculationsmentioning

confidence: 99%

“…Using CHARTS LiDAR data along with eight aerial photos from 1938 to 2010, we reconstructed the 1938 Gay stamp sand pile volume and, with some reasonable assumptions, calculated the shoreline erosion rate of the pile between 1938 and 2010 ( Figure 7; [3,31]). To measure the erosion of the tailing pile and the mass of sands washed into Lake Superior, three estimates were needed: (1) the area and volume of the pile above water level (available from the 2008 LiDAR); (2) the below-water volume, i.e., calculating the true depth of the stamp sand pile above lake bottom bedrock; and (3) the area of the pile lost through time (erosion at the shoreline face, estimated from aerial photos, essentially treated as vertical slices across the pile.…”

Section: Charts Overflights and Mass Calculationsmentioning

confidence: 99%

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Light Detection and Ranging (LiDAR) and Multispectral Scanner (MSS) Studies Examine Coastal Environments Influenced by Mining

Kerfoot

Hobmeier

Yousef

et al. 2014

IJGI

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There are numerous examples of past and present mine disposal into freshwater and marine coastal bays and riverine environments. Due to its high spatial resolution and extended water penetration, coastal light detection and ranging (LiDAR), coupled with multispectral scanning (MSS), has great promise for resolving disturbed shoreline features in low turbidity environments. Migrating mine tailings present serious issues for Lake Superior and coastal marine environments. Previous investigations in Lake Superior uncovered a metal-rich "halo" around the Keweenaw Peninsula, related to past copper mining practices. For over a century, waste rock migrating from shoreline tailing piles has moved along extensive stretches of coastline, compromising critical fish breeding grounds, damming stream outlets, transgressing into wetlands and along recreational beaches and OPEN ACCESS ISPRS Int. J. Geo-Inf. 2014, 3 67 suppressing benthic invertebrate communities. In Grand (Big) Traverse Bay, Buffalo Reef is an important spawning area for lake trout and whitefish threatened by drifting tailings. The movement of tailings into Buffalo Reef cobble fields may interfere with the hatching of fish eggs and fry survival, either by filling in crevices where eggs are deposited or by toxic effects on eggs, newly hatched larvae or benthic communities. Here, we show that the coastal tailing migration is not "out of sight, out of mind", but clearly revealed by using a combination of LiDAR and MSS techniques.

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Synthesis of recent research and attributes of recovered lean Lake Trout populations in Lake Superior, 1993–2022

Sitar,

Seider,

Ebener

et al. 2024

N American J Fish Manag

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ObjectiveThis purpose of this paper is to describe the characteristics of recovered Lake Trout Salvelinus namaycush populations in Lake Superior by describing its population dynamics, ecology, and recent research and management activities since 1993, when Lake Trout were declared rehabilitated.MethodsData from commercial fisheries, recreational fisheries, agency stocking reports, and natural resource agency fishery‐independent survey data along with published research findings on lean Lake Trout in Lake Superior between 1993 and 2022 were synthesized and reported.ResultCurrently, Lake Trout populations are self‐sustaining and lightly exploited with only a few areas with elevated total mortality rates. The total annual mortality has been far below the target maximum range of 42–45%. Furthermore, stocking of hatchery Lake Trout is no longer necessary.ConclusionWe have learned from research and management experience that the regulatory role of Lake Trout in the Great Lakes is critical to proper ecosystem function. Thus, continued commitment from natural resource agencies to cooperate and implement effective management actions is required to preserve the accomplishments of lakewide recovery of Lake Trout populations.

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Using LiDAR to reconstruct the history of a coastal environment influenced by legacy mining

Cited by 12 publications

References 35 publications

Analysis of MABEL Bathymetry in Keweenaw Bay and Implications for ICESat-2 ATLAS

Analysis of MABEL Bathymetry in Keweenaw Bay and Implications for ICESat-2 ATLAS

Light Detection and Ranging (LiDAR) and Multispectral Scanner (MSS) Studies Examine Coastal Environments Influenced by Mining

Synthesis of recent research and attributes of recovered lean Lake Trout populations in Lake Superior, 1993–2022

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