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Kara, A.B.; Metzger, E.J.; Hurlburt, H.E.; Wallcraft, A.J.; Chassignet, E.P. | ||||
| Title | Multistatistics metric evaluation of ocean general circulation model sea surface temperature: Application to 0.08° Pacific Hybrid Coordinate Ocean Model simulations | Type | $loc['typeJournal Article'] | ||
| Year | 2008 | Publication | Journal of Geophysical Research | Abbreviated Journal | J. Geophys. Res. |
| Volume | 113 | Issue | C12 | Pages | |
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0148-0227 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 403 | ||
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| Author |
Kara, A.B.; Wallcraft, A.J.; Barron, C.N.; Hurlburt, H.E.; Bourassa, M.A. | ||||
| Title | Accuracy of 10 m winds from satellites and NWP products near land-sea boundaries | Type | $loc['typeJournal Article'] | ||
| Year | 2008 | Publication | Journal of Geophysical Research | Abbreviated Journal | J. Geophys. Res. |
| Volume | 113 | Issue | C10 | Pages | |
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| ISSN | 0148-0227 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Funding | NOAA, NRL | Approved | $loc['no'] | ||
| Call Number | COAPS @ mfield @ | Serial | 406 | ||
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| Author |
Kara, A.B.; Wallcraft, A.J.; Bourassa, M.A. | ||||
| Title | Air-sea stability effects on the 10 m winds over the global ocean: Evaluations of air-sea flux algorithms | Type | $loc['typeJournal Article'] | ||
| Year | 2008 | Publication | Journal of Geophysical Research | Abbreviated Journal | J. Geophys. Res. |
| Volume | 113 | Issue | C4 | Pages | |
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| ISSN | 0148-0227 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 412 | ||
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| Author |
Kara, A.B.; Wallcraft, A.J.; Martin, P.J.; Chassignet, E.P. | ||||
| Title | Performance of mixed layer models in simulating SST in the equatorial Pacific Ocean | Type | $loc['typeJournal Article'] | ||
| Year | 2008 | Publication | Journal of Geophysical Research | Abbreviated Journal | J. Geophys. Res. |
| Volume | 113 | Issue | C2 | Pages | |
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| ISSN | 0148-0227 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 415 | ||
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| Author |
Karmakar, N.; Misra, V. | ||||
| Title | The Relation of Intraseasonal Variations With Local Onset and Demise of the Indian Summer Monsoon | Type | $loc['typeJournal Article'] | ||
| Year | 2019 | Publication | Journal of Geophysical Research: Atmospheres | Abbreviated Journal | J. Geophys. Res. Atmos. |
| Volume | 124 | Issue | 5 | Pages | 2483-2506 |
| Keywords | hydroclimatic, Indian Summer Monsoon, Intraseasonal Oscillations, eastern Indiawestward propagating | ||||
| Abstract | Two of the most important hydroclimatic features of the Indian Summer Monsoon (ISM) rainfall are its onset/demise and Intraseasonal Oscillations (ISOs) manifested by the active‐break cycles. In this study, we aim to understand the quantitative association between these two phenomena. An objective definition of local onset/demise of the ISM based on more than a century‐long India Meteorological Department (IMD) rain‐gauge observation is taken into consideration. Using multichannel singular spectrum analysis (MSSA) we isolate northward propagating low‐ (20–60 days; LF‐ISO) and northwestward propagating high‐ (10–20 days; HF‐ISO) frequency ISOs from the daily ISM rainfall. Our results suggest that a large number of local onset (59%) and demise (62%) events occur during positive developing phases and positive decaying phases of two ISOs, respectively, with phase‐locking between LF‐ISO and HF‐ISO being particularly important. Local onset is largely associated with favorable phases of ISOs across India except for LF‐ISO over eastern India and HF‐ISO over western Ghats and central India (CI). We find that local demise is more coherent with the ISO phases, especially with HF‐ISO across the domain. We performed a case study to understand large‐scale association with the onset of the ISM over CI. In 44 of total 58 cases (1948–2005), when CI onset occurred during favorable LF‐ISO or HF‐ISO phase, they are either linked with a northward propagation of convection from the equator in LF‐ISO timescale (28 cases) or westward propagating structures from the western Pacific in HF‐ISO timescale (27 cases). | ||||
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| ISSN | 2169-897X | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ user @ | Serial | 1014 | ||
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| Author |
Karmakar, N.; Misra, V. | ||||
| Title | Differences in Northward Propagation of Convection Over the Arabian Sea and Bay of Bengal During Boreal Summer | Type | $loc['typeJournal Article'] | ||
| Year | 2019 | Publication | Journal of Geophysical Research: Atmospheres | Abbreviated Journal | J. Geophys. Res. Atmos. |
| Volume | 125 | Issue | 3 | Pages | |
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| Abstract | The governing dynamics that modulate the propagation characteristics of intraseasonal oscillations (ISO) during summer monsoon over the two ocean basins, Bay of Bengal (BoB) and Arabian Sea (AS), are investigated using observational analysis and high‐resolution regional coupled ocean‐atmosphere climate model simulations. ISO features are extracted over the Indian region using a data‐adaptive spectral method called multichannel singular spectrum analysis. ISO exhibits stronger intensity over the BoB than over the AS. But ISO‐filtered rainfall propagates at a faster rate ( urn:x-wiley:jgrd:media:jgrd55983:jgrd55983-math-00011.25°/day) over AS as compared to BoB ( urn:x-wiley:jgrd:media:jgrd55983:jgrd55983-math-0002.74°/day), giving rise to a northwest‐southeast tilted band of rainfall anomalies. However, the composite diagrams of several atmospheric fields associated with northward propagation like vorticity, low‐level convergence, and oceanic variables like sea surface temperature and mixed layer depth do not show this difference in propagation speed and all exhibit a speed of nearly 0.75°/day in both the ocean basins. The difference in speed of ISO‐filtered rainfall is explained through moisture flux convergence. Anomalous horizontal moisture advection plays a major role over AS in preconditioning the atmosphere and making it favorable for convection. Anomalous wind acting on climatological moisture gradient is the dominant term in the moisture advection equation. Easterly wind anomalies associated with a low‐level anticyclone over India helps advect moisture from the eastern side of the domain. The northwest‐southeast tilt of ISO is dictated by the atmospheric processes of moisture advection with the upper ocean playing a more passive role in causing the tilt. | ||||
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| ISSN | 2169-897X | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ user @ | Serial | 1099 | ||
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| Author |
Kennedy, A.J.; Griffin, M.L.; Morey, S.L.; Smith, S.R.; O'Brien, J.J. | ||||
| Title | Effects of El Niño-Southern Oscillation on sea level anomalies along the Gulf of Mexico coast | Type | $loc['typeJournal Article'] | ||
| Year | 2007 | Publication | Journal of Geophysical Research | Abbreviated Journal | J. Geophys. Res. |
| Volume | 112 | Issue | C5 | Pages | |
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| Series Volume | Series Issue | Edition | |||
| ISSN | 0148-0227 | ISBN | Medium | ||
| Area | Expedition | Conference | |||
| Funding | NOAA | Approved | $loc['no'] | ||
| Call Number | COAPS @ mfield @ | Serial | 425 | ||
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| Author |
Kozar, M.E.; Mann, M.E.; Camargo, S.J.; Kossin, J.P.; Evans, J.L. | ||||
| Title | Stratified statistical models of North Atlantic basin-wide and regional tropical cyclone counts | Type | $loc['typeJournal Article'] | ||
| Year | 2012 | Publication | Journal of Geophysical Research: Atmospheres | Abbreviated Journal | J. Geophys. Res. |
| Volume | 117 | Issue | D18 | Pages | |
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| ISSN | 0148-0227 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 239 | ||
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| Author |
Kozar, M.E.; Mann, M.E.; Emanuel, K.A.; Evans, J.L. | ||||
| Title | Long-term variations of North Atlantic tropical cyclone activity downscaled from a coupled model simulation of the last millennium | Type | $loc['typeJournal Article'] | ||
| Year | 2013 | Publication | Journal of Geophysical Research: Atmospheres | Abbreviated Journal | J. Geophys. Res. Atmos. |
| Volume | 118 | Issue | 24 | Pages | 13,383-13,392 |
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| ISSN | 2169897X | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ mfield @ | Serial | 174 | ||
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| Author |
Kranz, S.A.; Wang, S.; Kelly, T.B.; Stukel, M.R.; Goericke, R.; Landry, M.R.; Cassar, N. | ||||
| Title | Lagrangian Studies of Marine Production: A Multimethod Assessment of Productivity Relationships in the California Current Ecosystem Upwelling Region | Type | $loc['typeJournal Article'] | ||
| Year | 2020 | Publication | Journal of Geophysical Research: Oceans | Abbreviated Journal | J. Geophys. Res. Oceans |
| Volume | 125 | Issue | 6 | Pages | |
| Keywords | gross primary production; long‐ term ecological research; equilibrium inlet mass spectrometry; carbon export; net community production | ||||
| Abstract | A multimethod process‐oriented investigation of diverse productivity measures in the California Current Ecosystem (CCE) Long‐Term Ecological Research study region, a complex physical environment, is presented. Seven multiday deployments covering a transition region from high to low productivity were conducted over two field expeditions (spring 2016 and summer 2017). Employing a Lagrangian study design, water parcels were followed over several days, comparing 24‐h in situ measurements (14C and 15NO3 ‐uptake, dilution estimates of phytoplankton growth, and microzooplankton grazing) with high‐resolution productivity measurements by fast repetition rate fluorometry (FRRF) and equilibrium inlet mass spectrometry (EIMS), and integrated carbon export measuremnts using sediment traps. Results show the importance of accounting for temporal and fine spatial scale variability when estimating ecosystem production. FRRF and EIMS measurements resolved diel patterns in gross primary and net community production. Diel productivity changes agreed well with comparably more traditional measurements. While differences in productivity metrics calculated over different time intervals were considerable, as those methods rely on different base assumptions, the data can be used to explain ecosystem processes which would otherwise have gone unnoticed. The processes resolved from this method comparison further understanding of temporal and spatial coupling and decoupling of surface productivity and potential carbon burial in a gradient from coastal to offshore ecosystems. | ||||
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| ISSN | 2169-9275 | ISBN | Medium | ||
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| Funding | Approved | $loc['no'] | |||
| Call Number | COAPS @ user @ | Serial | 1113 | ||
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