©2026 Biological and Chemical Oceanography Data Management Office.This dataset comprises particle morphological measurements (for particles 200-1000 micrometer) collected during the DESAFÍO expedition (31 January–2 March 2023) in the northeastern subtropical Atlantic Ocean, spanning 22 CTD casts across the Azores, the Canary Islands, and the intervening open ocean. Particles imaged in situ were classified into two optical density–based pools, a low-optical-density particle (LODP) pool representing gel-like and other translucent particles, and a high-optical-de...
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Note on spatial and temporal resolution: The overall date and location range (lat,lon bounding box) were added to the dataset metadata. More detailed spatial and temporal resolution per profile is included in the related dataset:
Vertical profiles of Low and high-optical-density particles (LODP and HODP) and CTD hydrographic data from Focused Shadowgraph Imaging (FoSI) in the NE Atlantic, Jan–Mar 2023 (DESAFÍO)
https://www.bco-dmo.org/dataset/1003447
Acronyms:
DESAFÍO = DisEntangling Seasonality of Active Flux in the Ocean (expedition name)
FoSI = Focused Shadowgraph Imaging
LODP = Low Optical-Density Particles
HODP = High Optical-Density Particles
OD = Optical Density
ESD = equivalent spherical diameter
AZ = Azores
CI = Canary Islands
OO = Open Ocean
RGF = Relative Gel Fraction
ART ANOVA = Aligned Rank Transform (ART) Analysis of Variance (ANOVA)
ANCOVA = Analysis of Covariance
Related FoSI particle datasets from the DESAFÍO expedition in the northeastern subtropical Atlantic Ocean from January 31 to March 2, 2023.
Related FoSI particle datasets from the DESAFÍO expedition in the northeastern subtropical Atlantic Ocean from January 31 to March 2, 2023.
Huang, H., Bochdansky, A. B., Couret, M., Hernández-León, S. (2026). Particle characteristics of low and high optical-density particles (LODP and HODP) from Focused Shadowgraph Imaging (FoSI) in the NE Atlantic, Jan-Mar 2023 (DESAFÍO). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 1) Version Date 2026-08-04 [if applicable, indicate subset used]. doi:10.26008/1912/bco-dmo.1003429.1 [access date]
Terms of Use
This dataset is licensed under Creative Commons Attribution 4.0.
If you wish to use this dataset, it is highly recommended that you contact the original principal investigators (PI). Should the relevant PI be unavailable, please contact BCO-DMO (info@bco-dmo.org) for additional guidance. For general guidance please see the BCO-DMO Terms of Use document.