get_gsm_IOPexps: Get predefined IOP exponents for GSM in specific regions (NWA...
In BIO-RSG/oceancolouR: Various Functions for Satellite and Data Analysis
get_gsm_IOPexps R Documentation
Get predefined IOP exponents for GSM in specific regions (NWA or NEP only)
Description
Library of existing optimized exponents for the Garver-Siegel-Maritorena algorithm, used on the IOPs chl, adg, and bbp within the absorption and backscattering terms of the algorithm.
Usage
get_gsm_IOPexps(sensor, region, gtype)
Arguments
sensor
String, either "modisaqua", "seawifs", "viirssnpp", or "olci"
region
String, either "nwa", or "nep"
gtype
String, either "gc", "gs", or "gsv2" (see description below)
Details
region="global" for the standard exponents, "nwa" (Northwest Atlantic) or "nep" (Northeast Pacific) for the regionally-tuned exponents used in Clay et al 2019.
gtype="gc" for the exponents that were tuned using the g coefficients that are constant across wavebands, "gs" for those tuned using the spectrally-dependent g coefficients described in Clay et al 2019. "gsv2" refers to the re-optimized coefficients using the R2022.0 reprocessing.
Value
Numeric vector of exponents used on the IOPs in the algorithm, in this order: chl, adg, bbp
References
Clay, S.; Peña, A.; DeTracey, B.; Devred, E. Evaluation of Satellite-Based Algorithms to Retrieve Chlorophyll-a Concentration in the Canadian Atlantic and Pacific Oceans. Remote Sens. 2019, 11, 2609.
https://www.mdpi.com/2072-4292/11/22/2609
BIO-RSG/oceancolouR documentation built on Feb. 2, 2025, 2:01 a.m.
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| get_gsm_IOPexps | R Documentation |
Get predefined IOP exponents for GSM in specific regions (NWA or NEP only)
Description
Library of existing optimized exponents for the Garver-Siegel-Maritorena algorithm, used on the IOPs chl, adg, and bbp within the absorption and backscattering terms of the algorithm.
Usage
get_gsm_IOPexps(sensor, region, gtype)
Arguments
sensor |
String, either "modisaqua", "seawifs", "viirssnpp", or "olci" |
region |
String, either "nwa", or "nep" |
gtype |
String, either "gc", "gs", or "gsv2" (see description below) |
Details
region="global" for the standard exponents, "nwa" (Northwest Atlantic) or "nep" (Northeast Pacific) for the regionally-tuned exponents used in Clay et al 2019.
gtype="gc" for the exponents that were tuned using the g coefficients that are constant across wavebands, "gs" for those tuned using the spectrally-dependent g coefficients described in Clay et al 2019. "gsv2" refers to the re-optimized coefficients using the R2022.0 reprocessing.
Value
Numeric vector of exponents used on the IOPs in the algorithm, in this order: chl, adg, bbp
References
Clay, S.; Peña, A.; DeTracey, B.; Devred, E. Evaluation of Satellite-Based Algorithms to Retrieve Chlorophyll-a Concentration in the Canadian Atlantic and Pacific Oceans. Remote Sens. 2019, 11, 2609. https://www.mdpi.com/2072-4292/11/22/2609
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Note that we can't provide technical support on individual packages. You should contact the package authors for that.
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