Výsledky vyhledávání - "Ina Lefering"

Remote sensing of zooplankton swarms

Autor: Sünnje Linnéa Basedow, Malin Daase, Stig Falk-Petersen, Marvin Choquet, Emilia Trudnowska, David McKee, Ina Lefering, Astthor Gislason, Einar Skarstad Egeland

Publikováno v: Scientific Reports, Vol 9, Iss 1, Pp 1-10 (2019)
Scientific Reports

Accepted manuscript version, licensed CC BY-NC-ND 4.0. Source at https://doi.org/10.1038/s41598-018-37129-x. Zooplankton provide the key link between primary production and higher levels of the marine food web and they play an important role in media

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d65a62c345b59050f3542cad32c21198
http://link.springer.com/article/10.1038/s41598-018-37129-x

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Measurement uncertainties in PSICAM and reflective tube absorption meters

Autor: Ina, Lefering, Rüdiger, Röttgers, Christian, Utschig, Michael S, Twardowski, David, McKee

Publikováno v: Optics express. 26(19)

The nature and magnitude of measurement uncertainties (precision and accuracy) associated with two approaches for measuring absorption by turbid waters (b(532 nm) ranging from 0.20 m

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::bd476646d33c56a5163715e88a6d2023
https://pubmed.ncbi.nlm.nih.gov/30469558

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Uncertainty budgets for liquid waveguide CDOM absorption measurements

Autor: David McKee, Christian Utschig, Ina Lefering, Rüdiger Röttgers

Publikováno v: Lefering, I.; Roettgers, R.; Utschig, C.; McKee, D.: Uncertainty budgets for liquid waveguide CDOM absorption measurements. In: Applied Optics. Vol. 56 (2017) 22, 6357-6366. (DOI: /10.1364/AO.56.006357)

Long path length liquid waveguide capillary cell (LWCC) systems using simple spectrometers to determine the spectral absorption by colored dissolved organic matter (CDOM) have previously been shown to have better measurement sensitivity compared to h

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::91298ee23a51a334bd526eb5cafcc329
https://strathprints.strath.ac.uk/61593/1/Lefering_etal_AO2017_Uncertainty_budgets_for_liquid_waveguide_CDOM_absorption_measurements.pdf

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Determination of the absorption coefficient of chromophoric dissolved organic matter from underway spectrophotometry

Autor: David McKee, Annick Bricaud, Robert J. W. Brewin, Francesco Nencioli, Rüdiger Röttgers, Catherine Mitchell, Gavin H. Tilstone, Emmanuel Boss, Emanuele Organelli, Ina Lefering, Giorgio Dall'Olmo

Publikováno v: Optics Express
Optics Express, 2017, 25 (24), pp.A1079-A1095. ⟨10.1364/OE.25.0A1079⟩
OPTICS EXPRESS
OPTICS EXPRESS, 2017, 25 (24), pp.A1079-A1095. ⟨10.1364/OE.25.0A1079⟩
Dall´Olmo, G.; Brewin, R.J.W.; Nencioli, F.; Organelli, E.; Lefering, I.; McKee, D.; Roettgers, R.; Mitchell, C.; Boss, E.; Bricaud, A.; Tilstone, G.: Determination of the absorption coefficient of chromophoric dissolved organic matter from underway spectrophotometry. In: Optics express. Vol. 25 (2017) 24, A1079-A1095. (DOI: /10.1364/OE.25.0A1079)
Optics express 25 (2017): A1079–A1095. doi:10.1364/OE.25.0A1079
info:cnr-pdr/source/autori:DalL'Olmo, Giorgio; Brewin, Robert J. W.; Nencioli, Francesco; Organelli, Emanuele; Lefering, Ina; McKee, David; Roettgers, Ruediger; Mitchell, Catherine; Boss, Emmanuel; Bricaud, Annick; Tilstone, Gavin/titolo:Determination of the absorption coefficient of chromophoric dissolved organic matter from underway spectrophotometry/doi:10.1364%2FOE.25.0A1079/rivista:Optics express/anno:2017/pagina_da:A1079/pagina_a:A1095/intervallo_pagine:A1079–A1095/volume:25

Measurements of the absorption coefficient of chromophoric dissolved organic matter (a(y)) are needed to validate existing ocean-color algorithms. In the surface open ocean, these measurements are challenging because of low a(y) values. Yet, existing

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9153e2caf9f6dfdba005bb705861430
https://hal.science/hal-03502945

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Optical closure in marine waters from in situ inherent optical property measurements

Autor: David McKee, Ina Lefering, Rüdiger Röttgers, David Bowers, Fethi Bengil, Alex Nimmo-Smith, Charles C. Trees, Jill Nicola Schwarz

Publikováno v: Lefering, I.; Bengil, F.; Trees, C.; Roettgers, R.; Bowers, D.; Nimmo-Smith, A.; Schwarz, J.; McKee, D.: Optical closure in marine waters from in situ inherent optical property measurements. In: Optics express. Vol. 24 (2016) 13, 14036-14052. (DOI: 10.1364/OE.24.014036)

Optical closure using radiative transfer simulations can be used to determine the consistency of in situ measurements of inherent optical properties (IOPs) and radiometry. Three scattering corrections are applied to in situ absorption and attenuation

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::42d2ee61e20ac4908204885c635b8f8e
https://pubmed.ncbi.nlm.nih.gov/27410565

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Improved determination of particulate absorption from combined filter pad and PSICAM measurements

Autor: Rüdiger Röttgers, Derek Connor, Rebecca J. Weeks, Christian Utschig, Kerstin Heymann, Ina Lefering, David McKee

Publikováno v: Lefering, I.; Roettgers, R.; Weeks, R.; Connor, D.; Utschig, C.; Heymann, K.; McKee, D.: Improved determination of particulate absorption from combined filter pad and PSICAM measurements. In: Optics express. Vol. 24 (2016) 22, 24805-24823. (DOI: 10.1364/OE.24.024805)

Filter pad light absorption measurements are subject to two major sources of experimental uncertainty: the so-called pathlength amplification factor, β, and scattering offsets, o, for which previous null-correction approaches are limited by recent o

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::18cb91a8e1cbdaaddbce69be499ec26a
https://publications.hereon.de/id/34389

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Forward modeling of inherent optical properties from flow cytometry estimates of particle size and refractive index

Autor: David McKee, Ina Lefering, Jacopo Agagliate

Publikováno v: Applied Optics. 57:1777

A Mie-based forward modeling procedure was developed to reconstruct bulk inherent optical properties (IOPs) from particle size distributions (PSDs) and real refractive index distributions (PRIDs) obtained using a previously developed flow cytometric

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c603dcdb781b7c4ab926c8dbef155546
https://doi.org/10.1364/ao.57.001777

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