World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Quality Control of Automated Hyperspectral Remote Sensing Measurements from a Seaborne Platform : Volume 8, Issue 2 (30/03/2011)

By Garaba, S. P.

Click here to view

Book Id: WPLBN0003972820
Format Type: PDF Article :
File Size: Pages 26
Reproduction Date: 2015

Title: Quality Control of Automated Hyperspectral Remote Sensing Measurements from a Seaborne Platform : Volume 8, Issue 2 (30/03/2011)  
Author: Garaba, S. P.
Volume: Vol. 8, Issue 2
Language: English
Subject: Science, Ocean, Science
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2011
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Zielinski, O., Garaba, S. P., & Wernand, M. R. (2011). Quality Control of Automated Hyperspectral Remote Sensing Measurements from a Seaborne Platform : Volume 8, Issue 2 (30/03/2011). Retrieved from http://hawaiilibrary.net/


Description
Description: University of Bremen, Department of Geosciences, P.O. Box 330440, 28334 Bremen, Germany. In this study four data quality flags are presented for automated and unmanned above-water hyperspectral optical measurements collected underway in the North Sea, The Minch, Irish Sea and Celtic Sea in April/May 2009. Coincident to these optical measurements a DualDome D12 (Mobotix, Germany) camera system was used to capture sea surface and sky images. The first three flags are based on meteorological conditions, to select erroneous incoming solar irradiance (ES) taken during dusk, dawn, before significant incoming solar radiation could be detected or under rainfall. Furthermore, the relative azimuthal angle of the optical sensors to the sun is used to identify possible sunglint free sea surface zones. A total of 629 spectra remained after applying the meteorological masks (first three flags). Based on this dataset, a fourth flag for sunglint was generated by analysing and evaluating water leaving radiance (LW) and remote sensing reflectance (RRS) spectral behaviour in the presence and absence of sunglint salient in the simultaneously available sea surface images. Spectra conditions satisfying mean LW (700–950 nm) < 2 mW m−2 nm−1 Sr−1 or alternatively minimum RRS (700–950 nm) < 0.010 Sr−1, mask the most measurements affected by sunglint, providing efficient flagging of sunglint in automated quality control. It is confirmed that valid optical measurements can be performed 0° ≤ Φ ≤ 360° although 90° ≤ Φ ≤ 135° is recommended.

Summary
Quality control of automated hyperspectral remote sensing measurements from a seaborne platform

Excerpt
Aas, E.: Estimates of radiance reflected towards the zenith at the surface of the sea, Ocean Sci., 6, 861–876, doi:10.5194/os-6-861-2010, 2010.; Bricaud, A., Morel, A., and Prieur, L.: Absorption by dissolved organic matter of the sea (yellow substance) in the UV and visible domains, Limnol. Oceanogr., 26, 43–53, 1981.; Deschamps, P.-Y., Fougnie, B., Frouin, R., Lecomte, P., and Verwaerde, C.: SIMBAD: A Field Radiometer for Satellite Ocean-Color Validation, Appl. Optics, 43, 4055–4069, doi:10.1364/AO.43.004055, 2004.; Dierssen, H. M.: Perspectives on empirical approaches for ocean color remote sensing of chlorophyll in a changing climate, P. Natl. Acad. Sci., 107, 17073–17078, doi:10.1073/pnas.0913800107, 2010.; Fougnie, B., Frouin, R., Lecomte, P., and Deschamps, P.-Y.: Reduction of Skylight Reflection Effects in the Above-Water Measurement of Diffuse Marine Reflectance, Appl. Optics, 38, 3844–3856, doi:10.1364/AO.38.003844, 1999.; Frouin, R., Schwindling, M., and Deschamps, P.-Y.: Spectral reflectance of sea foam in the visible and near-infrared: In situ measurements and remote sensing implications, J. Geophys. Res., 101, 14361–14371, doi:10.1029/96jc00629, 1996.; Gallegos, C. L., Correll, D. L., and Pierce, J. W.: Modeling spectral diffuse attenuation, absorption, and scattering coefficients in a turbid estuary, Limnol. Oceanogr., 35, 1486–1502, 1990.; Garaba, S., Zielinski, O., Krock, B., Henkel, R., and Vo{ß}, D.: Spectral sky radiance during the North Sea Coast Harmful Algal Bloom (NORCOHAB II) RV HEINCKE cruise HE302, Hochschule Bremerhaven – University of Applied Sciences, doi:10.1594/PANGAEA.753832, 2010a.; Garaba, S., Zielinski, O., Krock, B., Henkel, R., and Vo{ß}, D.: Downward Irradiance during the North Sea Coast Harmful Algal Bloom (NORCOHAB II) RV HEINCKE cruise HE302, Hochschule Bremerhaven – University of Applied Sciences, doi:10.1594/PANGAEA.753830, 2010b.; Garaba, S., Zielinski, O., Krock, B., Henkel, R., and Vo{ß}, D.: Upward radiance during the North Sea Coast Harmful Algal Bloom (NORCOHAB II) RV HEINCKE cruise HE302, Hochschule Bremerhaven – University of Applied Sciences, doi:10.1594/PANGAEA.753839, 2010c.; Garaba, S., Zielinski, O., Krock, B., Henkel, R., and Vo{ß}, D.: Remote sensing reflectance during the North Sea Coast Harmful Algal Bloom (NORCOHAB II) RV HEINCKE cruise HE302, Hochschule Bremerhaven – University of Applied Sciences, doi:10.1594/PANGAEA.753840, 2010d.; Gordon, H. R.: Ship perturbation of irradiance measurements at sea. 1: Monte Carlo simulations, Appl. Optics, 24, 4172–4182, doi:10.1364/AO.24.004172, 1985.; Gordon, H. R. and Jacobs, M. M.: Albedo of the ocean-atmosphere system: influence of sea foam, Appl. Optics, 16, 2257–2260, doi:10.1364/AO.16.002257, 1977.; Halthore, R. N., Eck, T. F., Holben, B. N., and Markham, B. L.: Sun photometric measurements of atmospheric water vapor column abundance in the 940-nm band, J. Geophys. Res., 102, 4343–4352, doi:10.1029/96JD03247, 1997.; Hooker, S. B. and Morel, A.: Platform and Environmental Effects on Above-Water Determinations of Water-Leaving Radiances, J. Atmos. Ocean. Tech., 20, 187–205, 2.0.CO;2>doi:10.1175/1520-

 

Click To View

Additional Books


  • An Automated Gas Exchange Tank for Deter... (by )
  • Numerical Simulation and Decomposition o... (by )
  • Impact of the Indonesian Throughflow on ... (by )
  • Self-organizing Maps Approaches to Analy... (by )
  • Factors Favouring Large Organic Producti... (by )
  • Observed and Simulated Estimates of the ... (by )
  • Salinity-induced Mixed and Barrier Layer... (by )
  • Intrinsic Variability of the Antarctic C... (by )
  • Influence of the Southern Annular Mode o... (by )
  • Near-surface Diurnal Warming Simulations... (by )
  • Time and Space Variability of Freshwater... (by )
  • Interannual-to-decadal Variability of No... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from Hawaii eBook Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.