Výsledky vyhledávání - "Alexander L. Forrest"

Akademický článek

Observations of submesoscale eddy-driven heat transport at an ice shelf calving front

Autor: Drew M. Friedrichs, Jasmin B. T. McInerney, Holly J. Oldroyd, Won Sang Lee, Sukyoung Yun, Seung-Tae Yoon, Craig L. Stevens, Christopher J. Zappa, Christine F. Dow, Derek Mueller, Oscar Sepúlveda Steiner, Alexander L. Forrest

Publikováno v: Communications Earth & Environment, Vol 3, Iss 1, Pp 1-9 (2022)

At the calving front of Nansen Ice Shelf, Antarctica a 10-km wide eddy dominated the local circulation in austral summer 2018/19 and led to substantial vertical heat transport, according to rare observations with an autonomous glider and microstructu

Externí odkaz: https://doaj.org/article/fd09c4fcbcb048bdbf1e029c6a6b20a6

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Akademický článek

Development of current-induced scour beneath elevated subsea pipelines

Autor: Jun Y. Lee, Alexander L. Forrest, Fauzi A. Hardjanto, Shuhong Chai, Remo Cossu, Zhi Q. Leong

Publikováno v: Journal of Ocean Engineering and Science, Vol 3, Iss 4, Pp 265-281 (2018)

When scour occurs beneath a subsea pipeline and develops to a certain extent, the pipeline may experience vortex-induced vibrations, through which there can be a potential accumulation of fatigue damage. However, when a pipeline is laid on an uneven

Externí odkaz: https://doaj.org/article/26b22d1c9f9b48bcb0c6b07d730280b2

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Akademický článek

Quantifying Scales of Spatial Variability of Cyanobacteria in a Large, Eutrophic Lake Using Multiplatform Remote Sensing Tools

Autor: Samantha L. Sharp, Alexander L. Forrest, Keith Bouma-Gregson, Yufang Jin, Alicia Cortés, S. Geoffrey Schladow

Publikováno v: Frontiers in Environmental Science, Vol 9 (2021)

Harmful algal blooms of cyanobacteria are increasing in magnitude and frequency globally, degrading inland and coastal aquatic ecosystems and adversely affecting public health. Efforts to understand the structure and natural variability of these bloo

Externí odkaz: https://doaj.org/article/bf121d1f62af46a78b41de64698242f8

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Akademický článek

Predicting scour beneath subsea pipelines from existing small free span depths under steady currents

Autor: Jun Y. Lee, Jasmin McInerney, Remo Cossu, Zhi Q. Leong, Alexander L. Forrest

Publikováno v: Journal of Ocean Engineering and Science, Vol 2, Iss 2, Pp 61-75 (2017)

An equation was developed to predict current-induced scour beneath subsea pipelines in areas with small span depths, S. Current equations for scour prediction are only applicable to partially buried pipelines. The existence of small span depths (i.e.

Externí odkaz: https://doaj.org/article/8f97b5d2c4ee4269a2077422bae27be8

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Akademický článek

Exploring Spatial Heterogeneity of Antarctic Sea Ice Algae Using an Autonomous Underwater Vehicle Mounted Irradiance Sensor

Autor: Alexander L. Forrest, Lars C. Lund-Hansen, Brian K. Sorrell, Isak Bowden-Floyd, Vanessa Lucieer, Remo Cossu, Benjamin A. Lange, Ian Hawes

Publikováno v: Frontiers in Earth Science, Vol 7 (2019)

Sea ice algae represent a key energy source for many organisms in polar food webs, but estimating their biomass at ecologically appropriate spatiotemporal scales remains a challenge. Attempts to extend ice-core derived biomass to broader scales using

Externí odkaz: https://doaj.org/article/b4604b897d744170a372c0599397c140

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Akademický článek

Determining the Horizontal and Vertical Water Velocity Components of a Turbulent Water Column Using the Motion Response of an Autonomous Underwater Vehicle

Autor: Supun A. T. Randeni P., Alexander L. Forrest, Remo Cossu, Zhi Q. Leong, Dev Ranmuthugala

Publikováno v: Journal of Marine Science and Engineering, Vol 5, Iss 3, p 25 (2017)

This work introduces a new method to calculate the water velocity components of a turbulent water column in the x, y, and z directions using Autonomous Underwater Vehicle (AUV) motion response (referred to as the ‘WVAM method’). The water column

Externí odkaz: https://doaj.org/article/750b00aebf734631aafc18ef11d3d0ac

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Akademický článek

Fine-Scale Sea Ice Structure Characterized Using Underwater Acoustic Methods

Autor: Vanessa Lucieer, Amy W. Nau, Alexander L. Forrest, Ian Hawes

Publikováno v: Remote Sensing, Vol 8, Iss 10, p 821 (2016)

Antarctic sea ice is known to provide unique ecosystem habitat at the ice–ocean interface. Mapping sea ice characteristics—such as thickness and roughness—at high resolution from beneath the ice is difficult due to access. A Geoswath Plus phase

Externí odkaz: https://doaj.org/article/498c789c39f84693be7468979b1dc2c0

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