Here I synthesize the results of several types of measurements of organic carbon respiration and calcium carbonate dissolution rates in pelagic seafloor sediments. Measurements of pore water oxygen demonstrate that
most of the respiration takes place very near the sediment-water interface, with a scale depth of a few
millimeters. The...
High-resolution measurements of salinity, temperature, and partial pressure of carbon dioxide (pCO2) taken at Whiskey Creek Shellfish Hatchery, Netarts Bay, Oregon, from 2014 - 2019 are provided in this data set. Briefly, a permanently submerged pipe draws in bay water to supply the shellfish hatchery tanks. Unmodified water is branched...
During the Southern Ocean Iron Experiment (SOFeX), January-February 2002, two iron fertilization experiments were conducted at the south (66.45°S, 171.8°W) and north (56.23°S, 172°W) patches. The south patch was replete with all macronutrients, whereas the north patch was nearly depleted of silicate. Using a towed water sampling/measurement system, high resolution...
We present in situ electrode measurements of sediment resistivity, pore water oxygen, and pore water pH from three stations between 2300 and 3000 m depth on the Ontong-Java Plateau in the western equatorial Pacific. One of these stations is also the site of a concurrent benthic chamber incubation experiment [Jahnke...
The results of high-resolution biogeochemical measurements in the upper 200 m of
the Ross Sea, Antarctica, obtained during the AESOPS (U. S. JGOFS) program using the
Lamont Pumping SeaSoar (LPS) are presented. They consist of three west-east transects
from 170°E to 180° longitude along the AESOPS study line at 76.5°S...
The first results obtained with the Lamont Pumping SeaSoar (LPS), a combination measurement and sampling platform towed by a research ship at speeds of 6–7 kt, are presented. The system allows not only measurement of a suite of oceanographic parameters with in situ sensors, but also delivery of seawater samples...
We present observations from deployments of a microstructure turbulence instrument
(the Towed Microstructure and Auxiliary Sensor Instrument) aboard a pumping profiling
vehicle (the Lamont Pumping SeaSoar) towed behind a research vessel at the New
England shelf break front in August 2002. From these we determined coincident fine-scale
vertical eddy diffusivity...
A biological pump for transferring atmospheric CO₂ to deep ocean regimes has been
identified in the upwelling zone of the U.S. Pacific coast off Oregon using high-resolution
measurements of Pco₂ and nutrient concentrations that were made in May through
August 2001. Surface water over most of the shelf was a...
A poleward increase in phytoplankton biomass along
the West Coast of North America has been attributed to
increasing river runoff towards the north. We combine
streamflow and shelf width data with satellite-derived
estimates of phytoplankton biomass to quantify the
relationship between these variables. We find that a
combination of winter...
