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Author Karmakar, N.; Misra, V. url  doi
openurl 
  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  
  Keywords  
  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 Karmakar, N.; Misra, V. url  doi
openurl 
  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‐ (2060 days; LF‐ISO) and northwestward propagating high‐ (1020 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 (19482005), 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  
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  Funding Approved $loc['no']  
  Call Number COAPS @ user @ Serial 1014  
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Author Kozar, M.E.; Mann, M.E.; Emanuel, K.A.; Evans, J.L. url  doi
openurl 
  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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  Call Number COAPS @ mfield @ Serial 174  
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Author Misra, V.; Mishra, A. url  doi
openurl 
  Title The oceanic influence on the rainy season of Peninsular Florida Type $loc['typeJournal Article']
  Year 2016 Publication Journal of Geophysical Research: Atmospheres Abbreviated Journal J. Geophys. Res. Atmos.  
  Volume 121 Issue 13 Pages 7691-7709  
  Keywords rainy season; Florida Current  
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  Funding Approved $loc['no']  
  Call Number COAPS @ mfield @ Serial 45  
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Author Selman, C.; Misra, V. url  doi
openurl 
  Title Simulating diurnal variations over the southeastern United States Type $loc['typeJournal Article']
  Year 2015 Publication Journal of Geophysical Research: Atmospheres Abbreviated Journal J. Geophys. Res. Atmos.  
  Volume 120 Issue 1 Pages 180-198  
  Keywords diurnal variations; southeast; precipitation; temperature; downscaling; regional climate modeling  
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  Call Number COAPS @ mfield @ Serial 120  
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Author Selman, C.; Misra, V. url  doi
openurl 
  Title The sensitivity of southeastern United States climate to varying irrigation vigor Type $loc['typeJournal Article']
  Year 2016 Publication Journal of Geophysical Research: Atmospheres Abbreviated Journal J. Geophys. Res. Atmos.  
  Volume 121 Issue 13 Pages 7606-7621  
  Keywords irrigation; climate; regional modeling; model; vigor; anthropogenic  
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  Funding Approved $loc['no']  
  Call Number COAPS @ mfield @ Serial 50  
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Author Shin, D.W.; Cocke, S. url  doi
openurl 
  Title Alternative ways to evaluate a seasonal dynamical downscaling system Type $loc['typeJournal Article']
  Year 2013 Publication Journal of Geophysical Research: Atmospheres Abbreviated Journal J. Geophys. Res. Atmos.  
  Volume 118 Issue 24 Pages 13,443-13,448  
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  Call Number COAPS @ mfield @ Serial 175  
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Author Shin, D.W.; Baigorria, G.A.; Romero, C.C.; Cocke, S.; Oh, J.-H.; Kim, B.-M. url  doi
openurl 
  Title Assessing crop yield simulations driven by the NARCCAP regional climate models in the southeast United States Type $loc['typeJournal Article']
  Year 2017 Publication Journal of Geophysical Research: Atmospheres Abbreviated Journal J. Geophys. Res. Atmos.  
  Volume 122 Issue 5 Pages 2549-2558  
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  Call Number COAPS @ mfield @ Serial 28  
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Author Yan, Y.; Liu, Y.; Lu, J. url  doi
openurl 
  Title Cloud vertical structure, precipitation, and cloud radiative effects over Tibetan Plateau and its neighboring regions Type $loc['typeJournal Article']
  Year 2016 Publication Journal of Geophysical Research: Atmospheres Abbreviated Journal J. Geophys. Res. Atmos.  
  Volume 121 Issue 10 Pages 5864-5877  
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  Call Number COAPS @ mfield @ Serial 59  
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Author Zheng, Y.; Bourassa, M.A.; Ali, M.M.; Krishnamurti, T.N. url  doi
openurl 
  Title Distinctive features of rainfall over the Indian homogeneous rainfall regions between strong and weak Indian summer monsoons Type $loc['typeJournal Article']
  Year 2016 Publication Journal of Geophysical Research: Atmospheres Abbreviated Journal J. Geophys. Res. Atmos.  
  Volume 121 Issue 10 Pages 5631-5647  
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  Funding Approved $loc['no']  
  Call Number COAPS @ mfield @ Serial 61  
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