DOI: 10.5061/dryad.59t11
title: Data from: The oceanic biological pump: rapid carbon transfer to depth at continental margins during winter

description: The oceanic biological pump is responsible for the important transfer of
 CO2-C as POC “Particulate Organic Carbon” to the deep sea. It plays a
 decisive role in the Earth’s carbon cycle and significant effort is spent
 to quantify its strength. In this study we used synchronized daily
 time-series data of surface chlorophyll-a concentrations from the NASA’s
 MODIS satellite in combination with hourly to daily observations from sea
 surface buoys and from an Internet Operated Vehicle (IOV) on the seafloor
 within Barkley Canyon (Northeast Pacific) to investigate the importance of
 winter processes in the export of fresh phytodetritus. The results
 indicate that phytoplankton pulses during winter can be as important in
 POC transfer to depth as the pulses associated with spring and summer
 blooms. Short winter phytoplankton pulses were observed to disappear from
 surface waters after low-pressure systems affected the area. Pulses of
 chlorophyll reached the IOV, at 870 m depth on the canyon seafloor,
 12–72 hours later. These observed short pulses of biological carbon
 production regularly observed in the region from December to March have
 not been considered a significant component of the biological pump when
 compared with the denser summer productivity blooms.
description: Supplementary video
 1_data 1 time lapse_POD1_canyon axisTime-lapse video
 assembled with data from the 675 kHz Kongsberg imaging rotary sonars.
 Dataset 1: (Nov 19-29, 2010 - Canyon Axis). Please refer to the ‘Readme’
 file, or to the ‘Supplementary Materials’ file available through Nature
 Scientific Reports, for complete description of the sampling
 protocol.Supplementary video
 2_data 1 time lapse_POD3_canyon wallTime-lapse video
 assembled with data from the 675 kHz Kongsberg imaging rotary sonars.
 Dataset 1: (Nov 15-27, 2010 - Canyon Wall). Please refer to the ‘Readme’
 file, or to the ‘Supplementary Materials’ file available through Nature
 Scientific Reports, for complete description of the sampling
 protocol.Supplementary video
 3_data 2 time lapse_POD1_canyon axisTime-lapse video
 assembled with data from the 675 kHz Kongsberg imaging rotary sonars.
 Dataset 2: (Feb 07-18, 2011 - Canyon Axis). Please refer to the ‘Readme’
 file, or to the ‘Supplementary Materials’ file available through Nature
 Scientific Reports, for complete description of the sampling
 protocol.Supplementary video
 4_data 2 time lapse_POD3_canyon wallTime-lapse video
 assembled with data from the 675 kHz Kongsberg imaging rotary sonars.
 Dataset 2: (Feb 07-19, 2011 - Canyon Wall). Please refer to the ‘Readme’
 file, or to the ‘Supplementary Materials’ file available through Nature
 Scientific Reports, for complete description of the sampling
 protocol.Supplementary video
 5_data 3 time lapse_POD1_canyon axisTime-lapse video
 assembled with data from the 675 kHz Kongsberg imaging rotary sonars.
 Dataset 3: (April 11-23, 2011 - Canyon Axis). Please refer to the ‘Readme’
 file, or to the ‘Supplementary Materials’ file available through Nature
 Scientific Reports, for complete description of the sampling
 protocol.Supplementary video
 6_data 3 time lpase_POD3_canyon wallTime-lapse video
 assembled with data from the 675 kHz Kongsberg imaging rotary sonars.
 Dataset 3: (April 11-22, 2011 - Canyon Wall). Please refer to the ‘Readme’
 file, or to the ‘Supplementary Materials’ file available through Nature
 Scientific Reports, for complete description of the sampling
 protocol.Supplementary video
 7_data 4 time lapse_POD1_canyon axisTime-lapse video
 assembled with data from the 675 kHz Kongsberg imaging rotary sonars.
 Dataset 4: (May 02-14, 2011 - Canyon Axis). Please refer to the ‘Readme’
 file, or to the ‘Supplementary Materials’ file available through Nature
 Scientific Reports, for complete description of the sampling
 protocol.Supplementary video
 8_data 4 time lapse_POD3_canyon wallTime-lapse video
 assembled with data from the 675 kHz Kongsberg imaging rotary sonars.
 Dataset 4: (May 02-13, 2011 - Canyon Wall). Please refer to the ‘Readme’
 file, or to the ‘Supplementary Materials’ file available through Nature
 Scientific Reports, for complete description of the sampling
 protocol.Biopump-DataAllDataset from a monitoring strategy combining satellite (MODIS), surface ocean weather-buoy (http://www.ec.gc.ca), and multi-sensor time-series data (including video, photographic and acoustic seafloor imaging) of benthic boundary layer processes using Ocean Networks Canada (ONC) seafloor cabled observatory. ONC’s network consists of five subsea observatory nodes linked by 800 kilometers of powered electro-optic cables, looping across the northern Juan de Fuca tectonic plate. Daily data&fluxes: averaged data from 1 Hz measurements of an internet operated vehicle (IOV) at 870 m water depth in Barkley Canyon, from the NASA MODIS satellite and from a weather buoy near the study site. Weekly data: calculated weekly averages of our analyses with SeaDAS in comparison with the MODIS, 8-day composites provided by NASA for the same period. Hourly data: averaged data from 1 Hz measurements of an internet operated vehicle (IOV) at 870 m water depth in Barkley Canyon, from the NASA MODIS satellite and from a weather buoy near the study site. Fluxes: averaged half hourly data of flow velocity and calculated along- and across canyon fluxes of chlorophyll at 870 m in Barkley Canyon. SeaDAS: estimations of POC from MODIS satellite-based observations derived via SeaDAS from monthly correlations (December, April) of chlorophyll/POC in surface waters. Benthos: relative abundances (%) of benthic fauna at the study site and environmental conditions at that time, using sensor data from the IOV.