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[1] Photomineralization of terrigenous dissolved organic matter (tDOM) in the Arctic Ocean is limited by persistent sea ice cover that reduces the amount of ultraviolet (UV) radiation reaching the underlying water column. UV-dependent processes are likely to accelerate as a result of shrinking sea ice extent and decreasing ice thickness caused by climatic(More)
We investigated the distribution, photoproduction, microbial uptake, and air–sea exchange of carbon monoxide (CO), a key photoproduct of chromophoric dissolved organic matter (CDOM), in open waters of the southeastern Beaufort Sea in autumn 2003 and spring 2004. Diurnal cycles of surface water CO concentration ([CO]) occurred in autumn but not in spring. In(More)
[1] To estimate the depth-integrated rate of photochemical processes involving chromophoric dissolved organic matter (CDOM) in coastal waters, the contribution of CDOM to the total absorption coefficient must be known from UV to green. At 307 sites sampled in various coastal marine environments, the ratio between CDOM and the total absorption coefficient(More)
Plasmacytoid dendritic cells (pDCs) are an important source of type I interferon (IFN) during initial immune responses to viral infections. In mice, pDCs are uniquely characterized by high-level expression of Ly49Q, a C-type lectin-like receptor specific for class I major histocompatibility complex (MHC) molecules. Despite having a cytoplasmic(More)
Supplemental materials Table SM1. Comparison of the quasi-(3 parameters) with simple (2 parameters) exponential functions for fitting based on statistical results of least-squares linear regression between predicted and measured photoproduction rates. N = 6 for all cases. RSS denotes residual sum of squares in (nmol L-1 d-1) 2. Here m 1 , m 2 , and m 3 are(More)
The seasonal patterns of phytoplankton biomass and production were determined in the North Water, located West (o751W), and South (o761N). Phytoplankton biomass and production were low during April throughout the North Water. Biomass first increased in the East during April. From there, the biomass spread north-and westwards during May–June, when the bloom(More)
We investigated the accuracy of sequential saccadic eye movements, executed without visual feed-back. We found evidence that the final error of one saccade is corrected during the next, which supports the existence of extraretinal inputs to the saccadic generator. The corrections, however, were incomplete, which suggests that extraretinal signals are only(More)
Continental runoff is a major source of freshwater, nutrients and terrigenous material to the Arctic Ocean. As such, it influences water column stratification, light attenuation, surface heating, gas exchange, biological productivity and carbon sequestration. Increasing river discharge and thawing permafrost suggest that the impacts of continental runoff on(More)
a r t i c l e i n f o Keywords: Ocean color Near-infrared Reflectance Satellite data In situ data Turbidity Coastal Suspended particulate matter The optical properties of natural waters beyond the visible range, in the near-infrared (NIR, 700–900 nm), have received little attention because they are often assumed to be mostly determined by the large(More)