Records |
Author |
Morey, S.L.; Schroeder, W.W.; O'Brien, J.J.; Zavala-Hidalgo, J. |
Title |
The annual cycle of riverine influence in the eastern Gulf of Mexico basin |
Type |
$loc['typeJournal Article'] |
Year |
2003 |
Publication |
Geophysical Research Letters |
Abbreviated Journal |
Geophys. Res. Lett. |
Volume |
30 |
Issue |
16 |
Pages |
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Place of Publication |
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Summary Language |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0094-8276 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Funding |
ONR, NASA |
Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
474 |
Permanent link to this record |
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Author |
Morey, S.L.; Shriver, J.F.; O'Brien, J.J. |
Title |
The effects of Halmahera on the Indonesian throughflow |
Type |
$loc['typeJournal Article'] |
Year |
1999 |
Publication |
Journal of Geophysical Research: Oceans |
Abbreviated Journal |
J. Geophys. Res. |
Volume |
104 |
Issue |
C10 |
Pages |
23281-23296 |
Keywords |
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Place of Publication |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0148-0227 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Funding |
ONR |
Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
769 |
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Author |
Morrison, T.; Dukhovskoy, D. S.; McClean, J.; Gille, S. T.; Chassignet, E. |
Title |
Causes of the anomalous heat flux onto the Greenland continental shelf |
Type |
$loc['typeAbstract'] |
Year |
2018 |
Publication |
American Geophysical Union |
Abbreviated Journal |
AGU |
Volume |
Fall Meeting |
Issue |
|
Pages |
|
Keywords |
0726 Ice sheets, CRYOSPHEREDE: 4207 Arctic and Antarctic oceanography, OCEANOGRAPHY: GENERALDE: 4215 Climate and interannual variability, OCEANOGRAPHY: GENERALDE: 4255 Numerical modeling, OCEANOGRAPHY: GENERAL |
Abstract |
On the continental shelf around Greenland, warm-salty Atlantic water at depth fills the deep narrow fjords where Greenland's tidewater glaciers terminate. Changes in the quantity or properties of this water mass starting in the mid 1990s is thought to be largely responsible for increased ocean-driven melting of the Greenland Ice Sheet. Using high-resolution (nominal 0.1-degree) ocean circulation models we cannot accurately resolve small-scale processes on the shelf or within fjords. However, we can assess changes in the flux of heat via Atlantic water onto the continental shelf. To understand the causes of the anomalous heat that has reached the shelf we examine heat content of subtropical gyre water and shifts in the North Atlantic and Atlantic Multidecadal Oscillations.
We compare changes in heat transport in two eddy permitting simulations: a global 0.1 degree (5-7km around Greenland) resolution coupled hindcast (1970-2009) simulation of the Parallel Ocean Program (POP) and a regional 0.08 degree (3-5km around Greenland) resolution coupled HYbrid Coordinate Ocean Model (HYCOM) hindcast (1993-2016) simulation. Both models are coupled to the Los Alamos National Laboratory Community Ice CodE version 4 and forced by atmospheric reanalysis fluxes. In both models we look for processes that could explain the increase in heat; processes that are present in both are likely to be robust causes of warming. |
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Approved |
$loc['no'] |
Call Number |
COAPS @ user @ |
Serial |
1009 |
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Author |
Morrow, R.M.; Ohman, M.D.; Goericke, R.; Kelly, T.B.; Stephens, B.M.; Stukel, M.R. |
Title |
CCE V: Primary production, mesozooplankton grazing, and the biological pump in the California Current Ecosystem: Variability and response to El Niño |
Type |
$loc['typeJournal Article'] |
Year |
2018 |
Publication |
Deep Sea Research Part I: Oceanographic Research Papers |
Abbreviated Journal |
Deep Sea Research Part I: Oceanographic Research Papers |
Volume |
140 |
Issue |
|
Pages |
52-62 |
Keywords |
Carbon export; Fecal pellets; Sinking particles; Interannual variability; Net primary productivity; Eastern boundary upwelling system KeyWords Plus:ZOOPLANKTON FECAL PELLETS; NORTH PACIFIC-OCEAN; CURRENT SYSTEM; SOUTHERN CALIFORNIA; UNDERWATER GLIDERS; CARBON EXPORT; ZONE; CHLOROPHYLL; STABILITY; EQUATIONS |
Abstract |
Predicting marine carbon sequestration in a changing climate requires mechanistic understanding of the processes controlling sinking particle flux under different climatic conditions. The recent occurrence of a warm anomaly (2014-2015) followed by an El Nino (2015-2016) in the southern sector of the California Current System presented an opportunity to analyze changes in the biological carbon pump in response to altered climate forcing. We compare primary production, mesozooplankton grazing, and carbon export from the euphotic zone during quasi-Lagrangian experiments conducted in contrasting conditions: two cruises during warm years – one during the warm anomaly in 2014 and one toward the end of El Nino 2016 – and three cruises during El Ninoneutral years. Results showed no substantial differences in the relationships between vertical carbon export and its presumed drivers (primary production, mesozooplankton grazing) between warm and neutral years. Mesozooplankton fecal pellet enumeration and phaeopigment measurements both showed that fecal pellets were the dominant contributor to export in productive upwelling regions. In more oligotrophic regions, fluxes were dominated by amorphous marine snow with negligible pigment content. We found no evidence for a significant shift in the relationship between mesozooplankton grazing rate and chlorophyll concentration. However, massspecific grazing rates were lower at low-to-moderate chlorophyll concentrations during warm years relative to neutral years. We also detected a significant difference in the relationship between phytoplankton primary production and photosynthetically active radiation between years: at similar irradiance and nutrient concentrations, productivity decreased during the warm events. Whether these changes resulted from species composition changes remains to be determined. Overall, our results suggest that the processes driving export remain similar during different climate conditions, but that species compositional changes or other structural changes require further attention. |
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Series Editor |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0967-0637 |
ISBN |
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Medium |
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Area |
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Conference |
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Funding |
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Approved |
$loc['no'] |
Call Number |
COAPS @ rl18 @ |
Serial |
983 |
Permanent link to this record |
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Author |
Morrow, R.M.; Ohman, M.D.; Goericke, R.; Kelly, T.B.; Stephens, B.M.; Stukel, M.R. |
Title |
CCE V: Primary production, mesozooplankton grazing, and the biological pump in the California Current Ecosystem: Variability and response to El Niño |
Type |
$loc['typeJournal Article'] |
Year |
2018 |
Publication |
Deep Sea Research Part I: Oceanographic Research Papers |
Abbreviated Journal |
Deep Sea Research Part I: Oceanographic Research Papers |
Volume |
|
Issue |
|
Pages |
|
Keywords |
Carbon export; Fecal pellets; Sinking particles; Interannual variability; Net primary productivity; Eastern boundary upwelling system |
Abstract |
Predicting marine carbon sequestration in a changing climate requires mechanistic understanding of the processes controlling sinking particle flux under different climatic conditions. The recent occurrence of a warm anomaly (2014�2015) followed by an El Niño (2015�2016) in the southern sector of the California Current System presented an opportunity to analyze changes in the biological carbon pump in response to altered climate forcing. We compare primary production, mesozooplankton grazing, and carbon export from the euphotic zone during quasi-Lagrangian experiments conducted in contrasting conditions: two cruises during warm years – one during the warm anomaly in 2014 and one toward the end of El Niño 2016 � and three cruises during El Niño-neutral years. Results showed no substantial differences in the relationships between vertical carbon export and its presumed drivers (primary production, mesozooplankton grazing) between warm and neutral years. Mesozooplankton fecal pellet enumeration and phaeopigment measurements both showed that fecal pellets were the dominant contributor to export in productive upwelling regions. In more oligotrophic regions, fluxes were dominated by amorphous marine snow with negligible pigment content. We found no evidence for a significant shift in the relationship between mesozooplankton grazing rate and chlorophyll concentration. However, mass-specific grazing rates were lower at low-to-moderate chlorophyll concentrations during warm years relative to neutral years. We also detected a significant difference in the relationship between phytoplankton primary production and photosynthetically active radiation between years: at similar irradiance and nutrient concentrations, productivity decreased during the warm events. Whether these changes resulted from species composition changes remains to be determined. Overall, our results suggest that the processes driving export remain similar during different climate conditions, but that species compositional changes or other structural changes require further attention |
Address |
Deep-Sea Research Part I |
Corporate Author |
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Thesis |
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Publisher |
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Place of Publication |
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Editor |
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Language |
English |
Summary Language |
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Original Title |
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Series Editor |
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Series Title |
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Abbreviated Series Title |
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Series Volume |
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Series Issue |
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Edition |
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ISSN |
0967-0637 |
ISBN |
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Medium |
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Area |
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Expedition |
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Conference |
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Funding |
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Approved |
$loc['no'] |
Call Number |
COAPS @ user @ |
Serial |
966 |
Permanent link to this record |
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Author |
Morrow, R.M.; Ohman, M.D.; Goericke, R.; Kelly, T.B.; Stephens, B.M.; Stukel, M.R. |
Title |
CCE V: Primary production, mesozooplankton grazing, and the biological pump in the California Current Ecosystem: Variability and response to El Niño |
Type |
$loc['typeJournal Article'] |
Year |
2018 |
Publication |
Deep Sea Research Part I: Oceanographic Research Papers |
Abbreviated Journal |
Deep Sea Research Part I: Oceanographic Research Papers |
Volume |
140 |
Issue |
|
Pages |
52-62 |
Keywords |
Carbon export; Fecal pellets; Sinking particles; Interannual variability; Net primary productivity; Eastern boundary upwelling system |
Abstract |
Predicting marine carbon sequestration in a changing climate requires mechanistic understanding of the processes controlling sinking particle flux under different climatic conditions. The recent occurrence of a warm anomaly (2014-2015) followed by an El Nino (2015-2016) in the southern sector of the California Current System presented an opportunity to analyze changes in the biological carbon pump in response to altered climate forcing. We compare primary production, mesozooplankton grazing, and carbon export from the euphotic zone during quasi-Lagrangian experiments conducted in contrasting conditions: two cruises during warm years – one during the warm anomaly in 2014 and one toward the end of El Nino 2016 – and three cruises during El Ninoneutral years. Results showed no substantial differences in the relationships between vertical carbon export and its presumed drivers (primary production, mesozooplankton grazing) between warm and neutral years. Mesozooplankton fecal pellet enumeration and phaeopigment measurements both showed that fecal pellets were the dominant contributor to export in productive upwelling regions. In more oligotrophic regions, fluxes were dominated by amorphous marine snow with negligible pigment content. We found no evidence for a significant shift in the relationship between mesozooplankton grazing rate and chlorophyll concentration. However, massspecific grazing rates were lower at low-to-moderate chlorophyll concentrations during warm years relative to neutral years. We also detected a significant difference in the relationship between phytoplankton primary production and photosynthetically active radiation between years: at similar irradiance and nutrient concentrations, productivity decreased during the warm events. Whether these changes resulted from species composition changes remains to be determined. Overall, our results suggest that the processes driving export remain similar during different climate conditions, but that species compositional changes or other structural changes require further attention. |
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ISSN |
0967-0637 |
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Approved |
$loc['no'] |
Call Number |
COAPS @ user @ |
Serial |
1021 |
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Author |
Murty, V.S.N.; Subrahmanyam, B.; Gangadhara Rao, L.V.; Reddy, G.V. |
Title |
Seasonal variation of sea surface temperature in the Bay of Bengal during 1992 as derived from NOAA-AVHRR SST data |
Type |
$loc['typeJournal Article'] |
Year |
1998 |
Publication |
International Journal of Remote Sensing |
Abbreviated Journal |
International Journal of Remote Sensing |
Volume |
19 |
Issue |
12 |
Pages |
2361-2372 |
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Edition |
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ISSN |
0143-1161 |
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Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
739 |
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Author |
Murty, V.S.N.; Subrahmanyam, B.; Sarma, M.S.S.; Tilvi, V.; Ramesh Babu, V. |
Title |
Estimation of sea surface salinity in the Bay of Bengal using Outgoing Longwave Radiation |
Type |
$loc['typeJournal Article'] |
Year |
2002 |
Publication |
Geophysical Research Letters |
Abbreviated Journal |
Geophys. Res. Lett. |
Volume |
29 |
Issue |
16 |
Pages |
22-1-22-4 |
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Edition |
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ISSN |
0094-8276 |
ISBN |
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Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
826 |
Permanent link to this record |
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Author |
Nakano, H.; Suginohara, N. |
Title |
Importance of the eastern Indian Ocean for the abyssal Pacific |
Type |
$loc['typeJournal Article'] |
Year |
2002 |
Publication |
Journal of Geophysical Research: Oceans |
Abbreviated Journal |
J. Geophys. Res. |
Volume |
107 |
Issue |
C12 |
Pages |
12-1-12-14 |
Keywords |
Indian Ocean; Adélie; circumpolar deep water |
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Edition |
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ISSN |
0148-0227 |
ISBN |
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Medium |
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Area |
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Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
827 |
Permanent link to this record |
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Author |
Nakano, H.; Suginohara, N. |
Title |
A Series of Middepth Zonal Flows in the Pacific Driven by Winds |
Type |
$loc['typeJournal Article'] |
Year |
2002 |
Publication |
Journal of Physical Oceanography |
Abbreviated Journal |
J. Phys. Oceanogr. |
Volume |
32 |
Issue |
1 |
Pages |
161-176 |
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Edition |
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ISSN |
0022-3670 |
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Approved |
$loc['no'] |
Call Number |
COAPS @ mfield @ |
Serial |
828 |
Permanent link to this record |