Diffuse downwelling attenuation coefficients (Napierian) for Southern Ocean waters for wavelengths 290-700 nm ...
Diffuse downwelling attenuation coefficients in Napierian form (DAC down) for Southern Ocean waters for wavelengths 290-700 nm. Coefficients for 320-700 nm were calculated directly from depth profiles of in situ irradiance made with an Ocean Optics Jaz spectrophotometer at PAL-LTER Station B, Arthur...
| Main Authors: | , , , |
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| Format: | Dataset |
| Language: | English |
| Published: |
PANGAEA
2017
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.1594/pangaea.879578 https://doi.pangaea.de/10.1594/PANGAEA.879578 |
| Summary: | Diffuse downwelling attenuation coefficients in Napierian form (DAC down) for Southern Ocean waters for wavelengths 290-700 nm. Coefficients for 320-700 nm were calculated directly from depth profiles of in situ irradiance made with an Ocean Optics Jaz spectrophotometer at PAL-LTER Station B, Arthur Harbor, Antarctica. The station is a 75 m deep sampling location about 1 km offshore. Due to the low signal-to-noise ratio in the in situ irradiance observations at wavelengths < 320 nm, coefficients were estimated for 290-320 nm using an exponential model fit to observed data from the 320-370 nm interval:DAC down =e^(-0.0152 * lamda+3.84)To achieve minimum boat shadow while making the irradiance profile measurements, the fiber optic cable and light sensor (cosine corrector) were streamed away from the small boat in a direction that was both to windward and toward the sun; the boat was then allowed to drift downwind from the measurement location to a suitable stand-off distance. A series of concurrent surface ... : PLEASE NOTE: This is an old Version of data collection doi:10.1594/PANGAEA.879582, please refer to the newer Version (see "Replaced by" reference) ... |
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