Communication in the ultraviolet

RE Silberglied - Annual Review of Ecology and Systematics, 1979 - JSTOR
Biologists are physically handicapped: They view the world through limited senses that
overlap, but are not congruent with, those of the organisms they study. By technologically …

Absorption spectral slopes and slope ratios as indicators of molecular weight, source, and photobleaching of chromophoric dissolved organic matter

JR Helms, A Stubbins, JD Ritchie… - Limnology and …, 2008 - Wiley Online Library
A new approach for parameterizing dissolved organic matter (DOM) ultraviolet‐visible
absorption spectra is presented. Two distinct spectral slope regions (275‐295 nm and 350 …

Characterization of dissolved organic matter in cave and spring waters using UV–Vis absorbance and fluorescence spectroscopy

JE Birdwell, AS Engel - Organic Geochemistry, 2010 - Elsevier
Chromophoric dissolved organic matter (CDOM) was examined using fluorescence and
absorbance spectra from sulfidic cave and thermal and non-thermal surface-discharging …

Modeling the spectral shape of absorption by chromophoric dissolved organic matter

MS Twardowski, E Boss, JM Sullivan, PL Donaghay - Marine Chemistry, 2004 - Elsevier
A single exponential model of the form ag (λ)∝ e− seλ was evaluated in the context of its
application and interpretation in describing absorption by chromophoric dissolved organic …

Optical properties and signatures of chromophoric dissolved organic matter (CDOM) in Danish coastal waters

CA Stedmon, S Markager, H Kaas - Estuarine, Coastal and Shelf Science, 2000 - Elsevier
The optical properties of chromophoric dissolved organic matter (CDOM) in Danish
estuaries and coastal waters were investigated. A new method for estimating the spectral …

The removal of dissolved humic acids and iron during estuarine mixing

ER Sholkovitz, EA Boyle, NB Price - Earth and Planetary Science Letters, 1978 - Elsevier
The estuarine chemistry of dissolved humic acids was determined by carrying out both field
and laboratory studies. These approaches were combined in an investigation of the Amazon …

Critical review of fluorescence and absorbance measurements as surrogates for the molecular weight and aromaticity of dissolved organic matter

JA Korak, G McKay - Environmental Science: Processes & Impacts, 2024 - pubs.rsc.org
Dissolved organic matter (DOM) is ubiquitous in aquatic environments and challenging to
characterize due to its heterogeneity. Optical measurements (ie, absorbance and …

Formation of carbonyl compounds from UV‐induced photodegradation of humic substances in natural waters: Fate of riverine carbon in the sea

RJ Kieber, X Zhou, K Mopper - Limnology and Oceanography, 1990 - Wiley Online Library
Low‐molecular‐weight (LMW) carbonyl compounds, eg formaldehyde, acetaldehyde, and
the α‐keto acid glyoxylate, were produced in a wide variety of natural waters upon …

Optical absorption spectra of waters from the Orinoco River outflow: Terrestrial input of colored organic matter to the Caribbean

NV Blough, OC Zafiriou, J Bonilla - Journal of Geophysical …, 1993 - Wiley Online Library
An extensive series of optical absorption spectra were recorded for waters in the eastern
Caribbean Sea, the Gulf of Paria, and the Orinoco River Estuary during the high‐flow period …

Spectral light attenuation and the absorption of UV and blue light in natural waters

S Markager, WF Vincent - Limnology and Oceanography, 2000 - Wiley Online Library
The spectral pattern of light attenuation in the ultraviolet (UV) and blue region (360–500 nm)
was analyzed for seven high Arctic lakes. The best description of Kd versus wavelength was …