Relationships of photosynthetically active radiation and shortwave irradiance

Britton, Carlton M.; Dodd, J.

doi:10.1016/0002-1571(76)90080-7

Cited by 151 publications

(71 citation statements)

References 7 publications

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“…The existence of a strong relationship between f p and IR is expected. f p has been found to depend on the moisture content of the atmosphere (Udo and Aro, 1999b) besides other factors like cloudiness (McCree, 1966;Stigter and Musabilha, 1982;Howell et al, 1983;Rao, 1984;Papaioannou et al, 1993;Udo and Aro, 1999b), daylength (Szeicz, 1974;Britton and Dodd, 1976) and insolation (Britton and Dodd, 1976;Udo and Aro, 1999b); infrared sky radiation is also found to depend on moisture content (Aubinet, 1994;Udo, 1997).…”

Section: Empirical Relationship Relating Par Ir and Hmentioning

confidence: 99%

“…Hence, many reports are available in the literature to estimate PAR from the more routinely measured parameter of solar radiation (McCree, 1966;Szeicz, 1974;Britton and Dodd, 1976;Stanhill and Fuchs, 1977;Stigter and Musabilha, 1982;Blackburn and Proctor, 1983;Howell et al, 1983;Rao, 1984;Weiss and Norman, 1985;Gueymard, 1989a,b;Karalis, 1989;Slomka, 1989;Papaioannou et al, 1993), light intensity (Nathan, 1984) and cloud amount (Nathan, 1986).…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

New empirical relationships for determining global PAR from measurements of global solar radiation, infrared radiation or sunshine duration

Udo¹,

Aro²

2000

Int. J. Climatol.

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Section: Empirical Relationship Relating Par Ir and Hmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

New empirical relationships for determining global PAR from measurements of global solar radiation, infrared radiation or sunshine duration

Udo¹,

Aro²

2000

Int. J. Climatol.

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“…It is thus required that such methods be recalibrated to account for local climatic characteristics before application. Relatively long-term measures, such as yearly and seasonally, daily averaged fE values, are not significantly affected by upper atmospheric and lower tropospheric conditions, but the day-to-day differences in these values apparently vary with cloud conditions (McCree 1966;Szeicz 1974;Britton and Dodd 1976;Papaionnou et al 1993). Therefore, average daily and/or monthly values of fE are often used, even though fE is not a constant (Stigter and Musabilha 1982).…”

Section: Introductionmentioning

confidence: 99%

Dynamics of photosynthetic photon flux density (PPFD) and estimates in coastal northern California

Smith

Jacovides

et al. 2010

Theor Appl Climatol

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“…In particular, the BFMCOUPLER package calculates the vertical profile of PAR along the water column, starting from the surface PAR, which is read from an external file or by using the short-wave radiation field (Q sw ), which is converted into PAR by a standard bulk formula if the native MITgcm atmospheric forcing package EXF is active (Britton and Dodd, 1976):…”

Section: Bfmcoupler Processesmentioning

confidence: 99%

Development of BFMCOUPLER (v1.0), the coupling scheme that links the MITgcm and BFM models for ocean biogeochemistry simulations

et al. 2017

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Abstract. In this paper, we present a coupling scheme between the Massachusetts Institute of Technology general circulation model (MITgcm) and the Biogeochemical Flux Model (BFM). The MITgcm and BFM are widely used models for geophysical fluid dynamics and for ocean biogeochemistry, respectively, and they benefit from the support of active developers and user communities. The MITgcm is a state-of-the-art general circulation model for simulating the ocean and the atmosphere. This model is fully 3-D (including the non-hydrostatic term of momentum equations) and is characterized by a finite-volume discretization and a number of additional features enabling simulations from global (O(10 7 ) m) to local scales (O(100) m). The BFM is a biogeochemical model based on plankton functional type formulations, and it simulates the cycling of a number of constituents and nutrients within marine ecosystems. The online coupling presented in this paper is based on an open-source code, and it is characterized by a modular structure. Modularity preserves the potentials of the two models, allowing for a sustainable programming effort to handle future evolutions in the two codes. We also tested specific model options and integration schemes to balance the numerical accuracy against the computational performance. The coupling scheme allows us to solve several processes that are not considered by each of the models alone, including light attenuation parameterizations along the water column, phytoplankton and detritus sinking, external inputs, and surface and bottom fluxes.Moreover, this new coupled hydrodynamic-biogeochemical model has been configured and tested against an idealized problem (a cyclonic gyre in a mid-latitude closed basin) and a realistic case study (central part of the Mediterranean Sea in [2006][2007][2008][2009][2010][2011][2012]. The numerical results consistently reproduce the interplay of hydrodynamics and biogeochemistry in both the idealized case and Mediterranean Sea experiments. The former reproduces correctly the alternation of surface bloom and deep chlorophyll maximum dynamics driven by the seasonal cycle of winter vertical mixing and summer stratification; the latter simulates the main basin-wide and mesoscale spatial features of the physical and biochemical variables in the Mediterranean, thus demonstrating the applicability of the new coupled model to a wide range of ocean biogeochemistry problems.

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Relationships of photosynthetically active radiation and shortwave irradiance

Cited by 151 publications

References 7 publications

New empirical relationships for determining global PAR from measurements of global solar radiation, infrared radiation or sunshine duration

New empirical relationships for determining global PAR from measurements of global solar radiation, infrared radiation or sunshine duration

Dynamics of photosynthetic photon flux density (PPFD) and estimates in coastal northern California

Development of BFMCOUPLER (v1.0), the coupling scheme that links the MITgcm and BFM models for ocean biogeochemistry simulations

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