the Creative Commons Attribution 3.0 License.
the Creative Commons Attribution 3.0 License.
Fast and accurate irradiance calculations for ecosystem models
Abstract. Coupled physical-biological-optical ocean ecosystem models often use sophisticated treatments of their physical and biological components, while oversimplifying the optical component to the possible detriment of the ecosystem predictions. To bring optical computations up to the standard required by recent ecosystem models, we developed a computationally fast numerical model, named EcoLight, that solves the azimuthally averaged radiative transfer equation to obtain accurate in-water spectral irradiances for use in calculations of photosynthesis and photo-oxidation. To evaluate its computational features, we incorporated EcoLight into an idealized physical-biological model for open-ocean Case 1 waters and compared ten-year simulations for a simple analytical irradiance model vs. EcoLight numerical calculations. After optimization, the EcoLight run times are less than 30% more than for the analytical irradiance model. Moreover, EcoLight is suitable for use in Case 2 and optically shallow waters, for which no analytical irradiance models exist. EcoLight also computes ancillary quantities such as the remote-sensing reflectance, which can be useful for ecosystem validation.
- Preprint
(1353 KB) - Metadata XML
- BibTeX
- EndNote
- Printer-friendly version
- Supplement
-
RC C3784: 'Review', Anonymous Referee #1, 04 Jan 2010
-
AC C4684: 'Author response to Referee 1', Curtis Mobley, 10 Mar 2010
-
AC C4684: 'Author response to Referee 1', Curtis Mobley, 10 Mar 2010
-
RC C3871: 'Comments on Mobley et al', Anonymous Referee #2, 11 Jan 2010
-
AC C4686: 'Author response to Referee 2', Curtis Mobley, 10 Mar 2010
-
AC C4686: 'Author response to Referee 2', Curtis Mobley, 10 Mar 2010
- Printer-friendly version
- Supplement
-
RC C3784: 'Review', Anonymous Referee #1, 04 Jan 2010
-
AC C4684: 'Author response to Referee 1', Curtis Mobley, 10 Mar 2010
-
AC C4684: 'Author response to Referee 1', Curtis Mobley, 10 Mar 2010
-
RC C3871: 'Comments on Mobley et al', Anonymous Referee #2, 11 Jan 2010
-
AC C4686: 'Author response to Referee 2', Curtis Mobley, 10 Mar 2010
-
AC C4686: 'Author response to Referee 2', Curtis Mobley, 10 Mar 2010
Viewed
| HTML | XML | Total | BibTeX | EndNote | |
|---|---|---|---|---|---|
| 789 | 1,213 | 58 | 2,060 | 51 | 44 |
- HTML: 789
- PDF: 1,213
- XML: 58
- Total: 2,060
- BibTeX: 51
- EndNote: 44
Cited
11 citations as recorded by crossref.
- Landsat 8: Providing continuity and increased precision for measuring multi-decadal time series of total suspended matter L. Lymburner et al. 10.1016/j.rse.2016.04.011
- Modelling ocean-colour-derived chlorophyll <i>a</i> S. Dutkiewicz et al. 10.5194/bg-15-613-2018
- A method of estimating the depths of shallow water based on the measurements of upwelling irradiance K. Pyrchla et al. 10.1007/s11852-018-0608-y
- Adaptive semianalytical inversion of ocean color radiometry in optically complex waters V. Brando et al. 10.1364/AO.51.002808
- Improved Representation of Underwater Light Field and Its Impact on Ecosystem Dynamics: A Study in the North Sea J. Skákala et al. 10.1029/2020JC016122
- Directional and Spectral Irradiance in Ocean Models: Effects on Simulated Global Phytoplankton, Nutrients, and Primary Production W. Gregg & C. Rousseaux 10.3389/fmars.2016.00240
- A spectrally-resolved light propagation model for aquatic systems: Steps toward parameterizing primary production M. Alver et al. 10.1016/j.jmarsys.2012.03.007
- Capturing optically important constituents and properties in a marine biogeochemical and ecosystem model S. Dutkiewicz et al. 10.5194/bg-12-4447-2015
- Improved irradiances for use in ocean heating, primary production, and photo-oxidation calculations C. Mobley & E. Boss 10.1364/AO.51.006549
- Geochemical and Photochemical Constraints on S[IV] Concentrations in Natural Waters on Prebiotic Earth S. Ranjan et al. 10.1029/2023AV000926
- Fast light calculations for ocean ecosystem and inverse models C. Mobley 10.1364/OE.19.018927
