Susumu Honjo

article

Settling fluxes of diatoms to the interior of the Antarctic circumpolar current along 170°W

Ivo Grigorov, Andrés S. Rigual-Hernandez, Susumu Honjo, Alan E.S. Kemp, more

Deep-Sea Research Part I > 2014 > 93 > Complete > 1-13

An array of four sediment trap moorings recorded the particulate flux across the Antarctic Circumpolar Current (ACC) at 170°W, between November 1996 and January 1998, as part of the US JGOFS-Antarctic Environment and Southern Ocean Process Study (AESOPS) program. The trap locations represent sampling within the Polar Frontal Zone, the Antarctic Polar Front, the Antarctic Zone and the Southern Antarctic...

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Biological pump processes in the cryopelagic and hemipelagic Arctic Ocean: Canada Basin and Chukchi Rise

Susumu Honjo, Richard A. Krishfield, Timothy I. Eglinton, Steven J. Manganini, more

Progress in Oceanography > 2010 > 85 > 3-4 > 137-170

The object of this study was to clarify the characteristics of the biological pump system operating in permanently or seasonally ice-covered ocean (cryopelagic) conditions by examining the export of particulate organic carbon (POC) and other components of oceanic particles in the Canada Basin at 120, 200, and 3067m and in hemipelagic Chukchi Rise waters at 120m. The first time-series sediment trap...

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Particulate organic carbon fluxes to the ocean interior and factors controlling the biological pump: A synthesis of global sediment trap programs since 1983

Susumu Honjo, Steven J. Manganini, Richard A. Krishfield, Roger Francois

Progress in Oceanography > 2008 > 76 > 3 > 217-285

Particulate organic carbon (POC) is vertically transported to the oceanic interior by aggregates and their ballasts, mainly CaCO ₃ and biogenic opal, with a smaller role for lithogenic aerosols through the mesopelagic zone. Diel migrating zooplankton communities effect vertical transport and remineralization of POC in the upper layers of the ocean. Below 1.5km, the presence of zooplankton...

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Autonomous Microbial Sampler (AMS), a device for the uncontaminated collection of multiple microbial samples from submarine hydrothermal vents and other aquatic environments

Craig D. Taylor, Kenneth W. Doherty, Stephen J. Molyneaux, Archie T. Morrison, more

Deep-Sea Research Part I > 2006 > 53 > 5 > 894-916

An Autonomous Microbial Sampler (AMS) is described that will obtain uncontaminated and exogenous DNA-free microbial samples from most marine, freshwater and hydrothermal ecosystems. Sampling with the AMS may be conducted using manned submersibles, remotely operated vehicles (ROVs), autonomous underwater vehicles (AUVs), or when tethered to a hydrowire during hydrocast operations on research vessels...

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Vertical budgets for organic carbon and biogenic silica in the Pacific sector of the Southern Ocean, 1996-1998

David M. Nelson, Robert F. Anderson, Richard T. Barber, Mark A. Brzezinski, more

Deep-Sea Research Part II > 2002 > 49 > 9-10 > 1645-1674

During the 1996-1998 Antarctic Environment and Southern Ocean Process Study (AESOPS), a component of US JGOFS, we obtained seasonal or longer-term data sets on the rates of production, vertical transport, remineralization and burial of particulate organic carbon (POC) and biogenic silica (BSiO ₂ ) in the Southern Ocean at 170 ^o W between 55 ^o S and 68 ^o S. The AESOPS...

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A new, mechanistic model for organic carbon fluxes in the ocean based on the quantitative association of POC with ballast minerals

Robert A. Armstrong, Cindy Lee, John I. Hedges, Susumu Honjo, more

Deep-Sea Research Part II > 2001 > 49 > 1-3 > 219-236

In simulation studies of the ocean's role in the global carbon cycle, predicting the depth-distribution for remineralization of particulate organic carbon (POC) is of particular importance. Following Sarmiento et al. (Global Biogeochemical Cycles 7 (1993) 417), most simulation models have the power-law curve of Martin et al. (Deep-Sea Research 34 (1987) 267) for this purpose. The Martin et al. curve...

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Particle fluxes to the interior of the Southern Ocean in the Western Pacific sector along 170 ^o W

Susumu Honjo, Roger Francois, Steven Manganini, Jack Dymond, more

Deep-Sea Research Part II > 2000 > 47 > 15-16 > 3521-3548

An array of five bottom-tethered moorings with 19 PARFLUX time-series sediment trap at three depths (1 and 2km below the surface, and 0.7km above the sea-floor) was deployed in the western Pacific sector of the Southern Ocean, along 170 ^o W. The five stations were selected to sample settling particles in the main hydrological zones of the Southern Ocean. The sampling period spanned 425 days...

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The vertical flux of biogenic and lithogenic material in the Ross Sea: moored sediment trap observations 1996-1998

Robert Collier, Jack Dymond, Susumu Honjo, Steven Manganini, more

Deep-Sea Research Part II > 2000 > 47 > 15-16 > 3491-3520

As part of the USJGOFS-AESOPS program, we deployed an array of moored sediment traps and determined the composition and vertical flux of particulate matter through the water column of the continental shelf environment of the Ross Sea. We deployed two moorings, with two traps each. One mooring was located in the southcentral Ross Sea along the line of AESOPS process studies; the other mooring was located...

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Export production of particles to the interior of the equatorial Pacific Ocean during the 1992 EqPac experiment

Susumu Honjo, Jack Dymond, Robert Collier, Steven J. Manganini

Deep-Sea Research Part II > 1995 > 42 > 2-3 > 831-870

Twenty-four time-series, moored sediment traps were deployed between 2/2/92 and 1/27/93 along 140°W at 9°N, 5°N, 2°N, 0°, 2°S, 5°S and 12°S at water depths of approximately 1200 m and 2200 m, and 700 m above the bottom. The opening/closing of the traps was synchronized at 17-day periods, for 21 events, covering a total of 357 days. The average annual particle flux in the ocean's interior (2.2 to...

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Search results for: Susumu Honjo

Settling fluxes of diatoms to the interior of the Antarctic circumpolar current along 170°W

Biological pump processes in the cryopelagic and hemipelagic Arctic Ocean: Canada Basin and Chukchi Rise

Particulate organic carbon fluxes to the ocean interior and factors controlling the biological pump: A synthesis of global sediment trap programs since 1983

Autonomous Microbial Sampler (AMS), a device for the uncontaminated collection of multiple microbial samples from submarine hydrothermal vents and other aquatic environments

Vertical budgets for organic carbon and biogenic silica in the Pacific sector of the Southern Ocean, 1996-1998

A new, mechanistic model for organic carbon fluxes in the ocean based on the quantitative association of POC with ballast minerals

Particle fluxes to the interior of the Southern Ocean in the Western Pacific sector along 170 ^o W

The vertical flux of biogenic and lithogenic material in the Ross Sea: moored sediment trap observations 1996-1998

Export production of particles to the interior of the equatorial Pacific Ocean during the 1992 EqPac experiment

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