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Author Venugopal, T. ; Ali, M.M. ; Bourassa, M.A. ; Zheng, Y. ; Goni, G.J. ; Foltz, G.R. ; Rajeevan, M.
Title Statistical Evidence for the Role of Southwestern Indian Ocean Heat Content in the Indian Summer Monsoon Rainfall Type $loc['typeJournal Article']
Year 2018 Publication SCIENTIFIC REPORTS Abbreviated Journal Sci Rep
Volume 8
Issue 1
Pages 12092
Keywords SEA-SURFACE TEMPERATURE ; EL-NINO ; EQUATORIAL PACIFIC ; IMPACT ; PREDICTION ; ENSO ; DIPOLE ; REGION ; SST
Abstract This study examines the benefit of using Ocean Mean Temperature (OMT) to aid in the prediction of the sign of Indian Summer Monsoon Rainfall (ISMR) anomalies. This is a statistical examination, rather than a process study. The thermal energy needed for maintaining and intensifying hurricanes and monsoons comes from the upper ocean, not just from the thin layer represented by sea surface temperature (SST) alone. Here, we show that the southwestern Indian OMT down to the depth of the 26 degrees C isotherm during January-March is a better qualitative predictor of the ISMR than SST. The success rate in predicting above- or below-average ISMR is 80% for OMT compared to 60% for SST. Other January-March mean climate indices (e.g., NINO3.4, Indian Ocean Dipole Mode Index, El Nino Southern Oscillation Modoki Index) have less predictability (52%, 48%, and 56%, respectively) than OMT percentage deviation (PD) (80%). Thus, OMT PD in the southwestern Indian Ocean provides a better qualitative prediction of ISMR by the end of March and indicates whether the ISMR will be above or below the climatological mean value.
Address Ministry of Earth Sciences, Government of India, New Delhi, India
Corporate Author Thesis
Publisher Place of Publication Editor
Language English
Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2045-2322
ISBN Medium
Area Expedition Conference
Funding strtoupper('3').strtolower('0108244'); strtoupper('P').strtolower('MC6092415')
Approved $loc['no']
Call Number COAPS @ user @
Serial 972
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Author Villas Bôas, A.B. ; Ardhuin, F. ; Ayet, A. ; Bourassa, M.A. ; Brandt, P. ; Chapron, B. ; Cornuelle, B.D. ; Farrar, J.T. ; Fewings, M.R. ; Fox-Kemper, B. ; Gille, S.T. ; Gommenginger, C. ; Heimbach, P. ; Hell, M.C. ; Li, Q. ; Mazloff, M.R. ; Merrifield, S.T. ; Mouche, A. ; Rio, M.H. ; Rodriguez, E. ; Shutler, J.D. ; Subramanian, A.C. ; Terrill, E.J. ; Tsamados, M. ; Ubelmann, C. ; van Sebille, E.
Title Integrated Observations of Global Surface Winds, Currents, and Waves: Requirements and Challenges for the Next Decade Type $loc['typeJournal Article']
Year 2019 Publication Frontiers in Marine Science Abbreviated Journal Front. Mar. Sci.
Volume 6
Issue Pages
Keywords
Abstract Ocean surface winds, currents, and waves play a crucial role in exchanges of momentum, energy, heat, freshwater, gases, and other tracers between the ocean, atmosphere, and ice. Despite surface waves being strongly coupled to the upper ocean circulation and the overlying atmosphere, efforts to improve ocean, atmospheric, and wave observations and models have evolved somewhat independently. From an observational point of view, community efforts to bridge this gap have led to proposals for satellite Doppler oceanography mission concepts, which could provide unprecedented measurements of absolute surface velocity and directional wave spectrum at global scales. This paper reviews the present state of observations of surface winds, currents, and waves, and it outlines observational gaps that limit our current understanding of coupled processes that happen at the air-sea-ice interface. A significant challenge for the coming decade of wind, current, and wave observations will come in combining and interpreting measurements from (a) wave-buoys and high-frequency radars in coastal regions, (b) surface drifters and wave-enabled drifters in the open-ocean, marginal ice zones, and wave-current interaction �hot-spots,� and (c) simultaneous measurements of absolute surface currents, ocean surface wind vector, and directional wave spectrum from Doppler satellite sensors.
Address
Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2296-7745
ISBN Medium
Area Expedition Conference
Funding Approved $loc['no']
Call Number COAPS @ user @
Serial 1064
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Author Vinayachandran, P. N. ; Davidson, Fraser ; Chassignet, E. P.
Title Towards joint assessments, modern capabilities and new links for ocean prediction systems Type $loc['typeJournal Article']
Year 2020 Publication Bulletin of the American Meteorological Society Abbreviated Journal Bull. Amer. Meteor. Soc.
Volume 101
Issue 4
Pages
Keywords
Abstract Approximately 260 individuals from forecasting centers, research laboratories, academia, and industry representing 40 countries met to discuss recent developments in operational oceanography and brainstorm about the future directions of ocean prediction services.
Address
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
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ISSN ISBN Medium
Area Expedition Conference
Funding Approved $loc['no']
Call Number COAPS @ user @
Serial 1091
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Author Wang, S. ; Kranz, S.A. ; Kelly, T.B. ; Song, H. ; Stukel, M.R. ; Cassar, N.
Title Lagrangian Studies of Net Community Production: The Effect of Diel and Multiday Nonsteady State Factors and Vertical Fluxes on O2 /Ar in a Dynamic Upwelling Region Type $loc['typeJournal Article']
Year 2020 Publication Journal of Geophysical Research: Biogeosciences Abbreviated Journal J. Geophys. Res. Biogeosci.
Volume 125
Issue 6
Pages e2019JG005569
Keywords net community production ; O2/Ar ; California Current Ecosystem ; Lagrangian measurements ; vertical fluxes ; nonsteady state
Abstract The ratio of dissolved oxygen to argon in seawater is frequently employed to estimate rates of net community production (NCP) in the oceanic mixed layer. The in situ O2/Ar‐based method accounts for many physical factors that influence oxygen concentrations, permitting isolation of the biological oxygen signal produced by the balance of photosynthesis and respiration. However, this technique traditionally relies upon several assumptions when calculating the mixed‐layer O2/Ar budget, most notably the absence of vertical fluxes of O2/Ar and the principle that the air‐sea gas exchange of biological oxygen closely approximates net productivity rates. Employing a Lagrangian study design and leveraging data outputs from a regional physical oceanographic model, we conducted in situ measurements of O2/Ar in the California Current Ecosystem in spring 2016 and summer 2017 to evaluate these assumptions within a �worst‐case� field environment. Quantifying vertical fluxes, incorporating nonsteady state changes in O2/Ar, and comparing NCP estimates evaluated over several day versus longer timescales, we find differences in NCP metrics calculated over different time intervals to be considerable, also observing significant potential effects from vertical fluxes, particularly advection. Additionally, we observe strong diel variability in O2/Ar and NCP rates at multiple stations. Our results reemphasize the importance of accounting for vertical fluxes when interpreting O2/Ar‐derived NCP data and the potentially large effect of nonsteady state conditions on NCP evaluated over shorter timescales. In addition, diel cycles in surface O2/Ar can also bias interpretation of NCP data based on local productivity and the time of day when measurements were made.
Address
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 2169-8953
ISBN Medium
Area Expedition Conference
Funding Approved $loc['no']
Call Number COAPS @ user @
Serial 1114
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Author Weissman, D.E. ; Bourassa, M.A.
Title Measurements of the Effect of Rain-Induced Sea Surface Roughness on the QuikSCAT Scatterometer Radar Cross Section Type $loc['typeJournal Article']
Year 2008 Publication IEEE Transactions on Geoscience and Remote Sensing Abbreviated Journal IEEE Trans. Geosci. Remote Sensing
Volume 46
Issue 10
Pages 2882-2894
Keywords
Abstract
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Corporate Author Thesis
Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0196-2892
ISBN Medium
Area Expedition Conference
Funding NASA, OVWST, NASA HQ
Approved $loc['no']
Call Number COAPS @ mfield @
Serial 681
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Author Weissman, D. E. ; Apgar, G. ; Tongue, J. S. ; Bourassa, M. A.
Title Corrections to the SeaWinds scatterometer wind vectors by removing rain effects Type $loc['typeJournal Article']
Year 2005 Publication Bulletin of the American Meteorological Society Abbreviated Journal
Volume 86
Issue Pages 621-622
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Funding Approved $loc['no']
Call Number COAPS @ mfield @
Serial 907
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Author Weissman, D.E. ; Bourassa, M.A. ; O'Brien, J.J. ; Tongue, J.S.
Title Calibrating the quikscat/seawinds radar for measuring rainrate over the oceans Type $loc['typeJournal Article']
Year 2003 Publication IEEE Transactions on Geoscience and Remote Sensing Abbreviated Journal IEEE Trans. Geosci. Remote Sensing
Volume 41
Issue 12
Pages 2814-2820
Keywords Next Generation Weather Radar (NEXRAD) ; precipitation ; radar reflectivity ; scatterometer normalized radar cross section (NRCS) ; space-based radar ; Tropical Rain Measuring Mission (TRMM)
Abstract
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0196-2892
ISBN Medium
Area Expedition Conference
Funding NASA
Approved $loc['no']
Call Number COAPS @ mfield @
Serial 468
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Author Weissman, DE ; Morey, S ; Bourassa, M
Title Studies of the effects of rain on the performance of the SMAP radiometer surface salinity estimates and applications to remote sensing of river plumes Type $loc['typeConference Article']
Year 2017 Publication IEEE International Symposium on Geoscience and Remote Sensing IGARSS Abbreviated Journal
Volume Issue Pages 1491-1494
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Funding Approved $loc['no']
Call Number COAPS @ mfield @
Serial 834
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Author Williford, C. E. ; Krishnamurti, T.N. ; Torres, R.C. ; Cocke, S. ; Christidis, Z. ; Vijaya Kumar, T.S.
Title Real-Time Multimodel Superensemble Forecasts of Atlantic Tropical Systems of 1999 Type $loc['typeJournal Article']
Year 2003 Publication Monthly Weather Review Abbreviated Journal Mon. Wea. Rev.
Volume 131
Issue 8
Pages 1878-1894
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Abstract
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Publisher Place of Publication Editor
Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0027-0644
ISBN Medium
Area Expedition Conference
Funding Approved $loc['no']
Call Number COAPS @ mfield @
Serial 839
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Author Winsberg, M. D. ; O'Brien, J. J. ; Zierden, D. ; Griffin, M.
Title Florida Weather Type $loc['typeBook Whole']
Year 2003 Publication Abbreviated Journal
Volume Issue Pages
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Publisher University Press of Florida
Place of Publication Gainesville, FL
Editor
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Funding Approved $loc['no']
Call Number COAPS @ mfield @
Serial 841
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