Ultraviolet radiation and the photobiology of earth's early oceans

CS Cockell - Origins of Life and Evolution of the Biosphere, 2000 - Springer
Abstract During the Archean era (3.9–2.5 Ga ago) the earth was dominatedby an oceanic
lithosphere. Thus, understanding how life aroseand persisted in the Archean oceans …

Atmospheric correction of satellite ocean color imagery: the black pixel assumption

DA Siegel, M Wang, S Maritorena, W Robinson - Applied optics, 2000 - opg.optica.org
The assumption that values of water-leaving radiance in the near-infrared (NIR) are
negligible enable aerosol radiative properties to be easily determined in the correction of …

Remote sensing of ocean colour in coastal, and other optically-complex, waters.

S Sathyendranath - 2000 - repository.oceanbestpractices.org
As we understand more about the optical properties of aquatic substances and their
influences on ocean colour, it became possible to envisage the use of ocean-colour data to …

Attenuation of ultraviolet radiation in mountain lakes: factors controlling the among‐and within‐lake variability

I Laurion, M Ventura, J Catalan… - Limnology and …, 2000 - Wiley Online Library
High‐altitude lakes are exposed to high fluence rates of solar ultraviolet radiation (UVR; 29–
400 nm) and contain low concentrations of dissolved organic carbon (DOC). While in most …

[PDF][PDF] SeaWiFS algorithm for the diffuse attenuation coefficient, K (490), using water-leaving radiances at 490 and 555 nm

JL Mueller - SeaWiFS postlaunch calibration and …, 2000 - oceancolor.gsfc.nasa.gov
A new algorithm has been developed using the ratio of water-leaving radiances at 490 and
555nm to estimate K (490), the diffuse attenuation coefficient of seawater at 490 nm. The …

Role of late winter mesoscale events in the biogeochemical variability of the upper water column of the North Pacific Subtropical Gyre

RM Letelier, DM Karl, MR Abbott… - Journal of …, 2000 - Wiley Online Library
Continuous records of upper water column (0–150 m) temperature profiles, spectral
distribution of down welling irradiance, and phytoplankton solar‐induced fluorescence at 25 …

[HTML][HTML] Visual pigments of African cichlid fishes: evidence for ultraviolet vision from microspectrophotometry and DNA sequences

KL Carleton, FI Hárosi, TD Kocher - Vision Research, 2000 - Elsevier
We have found evidence for ultraviolet visual capabilities in a Lake Malawi cichlid fish,
Metriaclima zebra. Microspectrophotometry of single cones revealed a visual pigment with …

Enhanced UV radiation—a new problem for the marine environment

RF Whitehead, SJ de Mora… - The effects of UV radiation …, 2000 - books.google.com
UV irradiance at the earth's surface is intimately related to stratospheric ozone. This gas
tends to be concentrated in the lower stratosphere (hence the notion of an ozone layer) and …

[HTML][HTML] Photoproduction of nonmethane hydrocarbons (NMHCs) in seawater

DD Riemer, PJ Milne, RG Zika, WH Pos - Marine Chemistry, 2000 - Elsevier
Nonmethane hydrocarbons (NMHCs) are emitted into the atmosphere from the ocean's
surface. Although the oceanic contribution to the global NMHC budget is considered minor …

[HTML][HTML] Ocean radiant heating. Part I: Optical influences

JC Ohlmann, DA Siegel… - Journal of Physical …, 2000 - journals.ametsoc.org
Ocean Radiant Heating. Part I: Optical Influences in: Journal of Physical Oceanography
Volume 30 Issue 8 (2000) Jump to Content Logo Logo Logo Logo Logo Logo JOURNALS …