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The results publication for these data has been submitted (Lesser et al., submitted).\u00a0 See further methodology details there once published.\u00a0 Data were analyzed using published inherent optical properties (IOP)s and irradiances for coral reefs.<\/p>\n
Inherent optical properties (IOPs)<\/p>\n
PARcos, PARhs, and PARbr\u00a0simulate the plating, mounding and branching morphologies of scleractinian corals, respectively, at specific depths.\u00a0 Specifically, planar irradiance, PARcos\u00a0is the light intercepted per unit area for a plating coral where the plates are orientated parallel with the reef surface. Hemispherical scalar irradiance, PARhs, is the light incident on an isolated mounding coral, per unit area of the reef surface it occupies. PARbr\u00a0is the average light incident per unit area of the coral surface for branching corals, this can be understood as the average light incident on a polyp in a branching coral. Finally, PARo\u00a0is the spherical quantum scalar irradiance, equivalent to a \u20184p\u2019 sensor just in front of the reef substrate.<\/p>\n
There is no specific location associated with these data.\u00a0 The focus of the project was the\u00a0Caribbean Basin and\u00a0the attenuation of light with depth and the role of light in structuring shallow and mesophotic coral reef communities.<\/p><\/div>","@type":"rdf:HTML"}],"http:\/\/www.w3.org\/2000\/01\/rdf-schema#label":[{"@value":"Underwater irradiance outputs from backward Monte Carlo ray tracing model","@type":"xsd:string"}],"http:\/\/ocean-data.org\/schema\/hasProcessingDescription":[{"@value":"
Software:\u00a0HydroLight\u00a0<\/p>\n
BCO-DMO data manager processing notes:
\n* Original data file submitted to BCO-DMO \"Lesser et al Ed Model Outputs.xlsx\" Sheet1 contained many subtables named by site and slope|wall and depth.\u00a0 Transformed the data so it could be imported into bco-dmo with the following steps:<\/p>\n
* Transposed all data so data in columns of the same type instead of rows.
\n* Expanded site name and slope so it was filled in for every row.
\n* Split site name (wall or slope) and depth into separate columns
\n* joined all subtables into one data table.
\n* exported data as csv before importing into the BCO-DMO data system.<\/p><\/div>","@type":"rdf:HTML"}],"http:\/\/purl.org\/dc\/terms\/identifier":[{"@value":"841083","@type":"xsd:int"}],"http:\/\/purl.org\/dc\/terms\/title":[{"@value":"Underwater irradiance outputs from backward Monte Carlo ray tracing model"}],"http:\/\/purl.org\/dc\/terms\/date":[{"@value":"2021-02-18T12:54:11-05:00","@type":"xsd:dateTime"}],"http:\/\/purl.org\/dc\/terms\/created":[{"@value":"2021-02-18T12:54:11-05:00","@type":"xsd:dateTime"}],"http:\/\/purl.org\/dc\/terms\/modified":[{"@value":"2023-07-07T16:10:26-04:00","@type":"xsd:dateTime"}],"http:\/\/rdfs.org\/ns\/void#inDataset":[{"@id":"http:\/\/www.bco-dmo.org\/"}],"http:\/\/ocean-data.org\/schema\/namedGraph":[{"@value":"urn:bcodmo:dataset:841083","@type":"xsd:token"}],"http:\/\/ocean-data.org\/schema\/osprey_page":[{"@id":"https:\/\/www.bco-dmo.org\/dataset\/841083"}],"http:\/\/ocean-data.org\/schema\/identifier":[{"@value":"_:Identifier841083"}],"http:\/\/ocean-data.org\/schema\/datasetTitle":[{"@value":"Depth-dependent irradiance from sunrise to sunset across the shallow to mesophotic depth gradient for three coral morphologies from a backward Monte Carlo ray-tracing model","@language":"en-US"}],"http:\/\/ocean-data.org\/schema\/abstract":[{"@value":"Mesophotic coral reefs, defined as deep reefs between 30 and 150 m, are found worldwide and are largely structured by changes in the underwater light field. Additionally, it is increasingly understood that reef-to-reef variability in topography, combined with quantitative and qualitative changes in the underwater light field with increasing depth, significantly influence the observed changes in coral distribution and abundance. Here we take a modeling approach to examine the effects of the inherent optical properties of the water column on the irradiance that corals are exposed to along a shallow to mesophotic depth gradient. In particular, the roles of reef topography including horizontal, sloping and vertical substrates are quantified as well as the differences between mounding, plating and branching colony morphologies. Downwelling irradiance and reef topography interact such that for a water mass of similar optical properties the irradiance reaching the benthos varies significantly with topography (i.e., substrate angle). Corals with different morphologies also interact with these benthic irradiances; model results show that isolated hemispherical colonies consistently \u201csee\u201d greater irradiances across depths, and throughout the day, compared to plating and branching morphologies. The differences in the photoautotrophic potential of different coral morphologies, based on the changes in irradiance modelled here, are not, however, consistent with depth-dependent distributions of these coral morphotypes. Other factors (e.g., heterotrophy) arguably contribute, but irradiance driven patterns are a strong proximate cause for the observed differences in mesophotic communities on sloping versus vertical reef substrates.","@language":"en-US"}],"http:\/\/purl.org\/dc\/terms\/rights":[{"@id":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"http:\/\/ocean-data.org\/schema\/deprecated":[{"@value":"false","@type":"xsd:boolean"}],"http:\/\/purl.org\/dc\/terms\/bibliographicCitation":[{"@value":"Lesser, M. P., Slattery, M. (2021) Depth-dependent irradiance from sunrise to sunset across the shallow to mesophotic depth gradient for three coral morphologies from a backward Monte Carlo ray-tracing model. Biological and Chemical Oceanography Data Management Office (BCO-DMO). 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