Ralph A Petersen



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Results: Found 26 records (displaying records 1 through 25)


1. Otkin, Jason A.; Hartung, Daniel C.; Turner, David D.; Petersen, Ralph A.; Feltz, Wayne F. and Janzon, Erik. Assimilation of surface-based boundary layer profiler observations during a cool-season event using an observing system simulation experiment, part 1: Analysis impact. Monthly Weather Review, Volume 139, Issue 8, 2011, pp.2309-2326. Reprint #6492.
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2. Hartung, Daniel C.; Otkin, Jason A.; Turner, David D.; Petersen, Ralph A. and Feltz, Wayne F. Assimilation of surface-based boundary layer profiler observations during a cool-season event using an observing system simulation experiment, part II: Forecast assessment. Monthly Weather Review, Volume 139, Issue 8, 2011, pp.2327-2346. Reprint #6493.
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3. Bedka, Kristopher M.; Velden, Christopher S.; Petersen, Ralph A.; Feltz, Wayne F. and Mecikalski, John R. Comparisons of satellite-derived atmospheric motion vectors, rawinsondes, and NOAA wind profiler observations. Journal of Applied Meteorology and Climatology, Volume 48, Issue 8, 2009, 1542–1561. Reprint #6108.
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4. Houghton, David D.; Petersen, Ralph A. and Wobus, Richard L. Spatial resolution impacts on National Meteorological Center nested grid model simulations. Monthly Weather Review, Volume 121, Issue 5, 1993, pp.1450-1466. Reprint #1387.
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5. Dimego, Geofrey J.; Mitchell, Kenneth E.; Petersen, Ralph A.; Hoke, James E.; Gerrity, Joseph P.; Tuccillo, James J.; Wobus, Richard L. and Juang, Hann-Ming H. Changes to NMC's regional analysis and forecast system. Weather and Forecasting, Volume 7, Issue 1, 1992, pp.185-198. Reprint #4427.
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6. Petersen, Ralph A. Comparisons of LFM and NGM lifted-index calculations. Weather and Forecasting, Volume 7, Issue 3, 1992, pp.536-541. Reprint #4428.
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7. Petersen, Ralph A.; Dimego, Geoffrey J.; Hoke, James E.; Mitchell, Kenneth E.; Gerrity, Joseph P.; Wobus, Richard L.; Juang, Hann-Ming H. and Pecnick, Michael J. Changes to NMC's regional analysis and forecast system. Weather and Forecasting, Volume 6, Issue 1, 1991, pp.133-141. Reprint #4432.
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8. Rogers, Eric; Mimego, Geoffrey J.; Ferrity, Joseph P.; Petersen, Ralph A.; Schmidt, Brian D. and Kann, Deirdre M. Preliminary experiments using GALE observations at the National Meteorological Center. Bulletin of the American Meteorological Society, Volume 71, Issue 3, 1990, pp.319-333. Reprint #4435.
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9. Kann, Deirdre M.; DiMego, Geoffrey J. and Petersen, Ralph A. The effect of surface observations on low-level temperatures in the National Meteorological Center regional analysis scheme. Monthly Weather Review, Volume 118, Issue 3, 1990, pp.772-777. Reprint #4447.
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10. Petersen, Ralph A. and Homan, Jeffrey H. Short-range forecasting and nowcasting using a simple, isentropic prediction model. Weather and Forecasting, Volume 4, Issue 1, 1989, pp.5-23. Reprint #4429.
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11. Bonner, William D. and Petersen, Ralph A. Recent changes to NMC's analysis and forecast systems. Weather and Forecasting, Volume 4, Issue 1, 1989, pp.81-82. Reprint #4430.
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12. Petersen, Ralph A. and Stackpole, John D. Overview of the NMC production suite. Weather and Forecasting, Volume 4, Issue 3, 1989, pp.313-322. Reprint #4431.
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13. Carr, Frederick H.; Wobus, Ricarhd L. and Petersen, Ralph A. A synoptic evaluation of normal mode initialization experiments with the NMC nested grid model. Monthly Weather Review, Volume 117, Issue 12, 1989, pp.2753-2771. Reprint #4434.
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14. Petersen, Ralph A. and Hoke, James E. The effect of snow cover on the Regional Analysis and Forecast System( RAFS) low-level forecasts. Weather and Forecasting, Volume 4, Issue 2, 1989, pp.253-257. Reprint #4442.
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15. Petersen, Ralph A. and Homan, Jeffrey H. Short-range forecasting and nowcasting using a simple, isentropic prediction model. Corrigedum. Weather and Forecasting, Volume 4, Issue 2, 1989, pp.263. Reprint #4429.
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16. Aune, Robert M.; Uccellini, Louis W.; Petersen, Ralph A. and Tuccillo, James J. A VAS-numerical model impact study using the Gal-Chen variational approach. Monthly Weather Review, Volume 115, Issue 5, 1987, pp.1009-1035. Reprint #4320.
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17. Uccellini, Louis W.; Petersen, Ralph A.; Brill, Keith F.; Kocin, Paul J. and Tuccillo, James J. Synergistic interactions between an upper-level jet streak and diabatic processes that influence the development of a low-level jet and a secondary coastal cyclone. Monthly Weather Review, Volume 115, Issue 10, 1987, pp.2227-2261. Reprint #4433.
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18. Petersen, Ralph A. Detailed three-dimensional isentropic analysis using an objective cross-sectional approach. Monthly Weather Review, Volume 114, Issue 4, 1986, pp.719-735. Reprint #4425.
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19. Mostek, Anthony; Uccellini, Louis W.; Petersen, Ralph A. and Chesters, Dennis. Assessment of VAS soundings in the analysis of a preconvective environment. Monthly Weather Review, Volume 114, Issue 1, 1986, pp.62-87. Reprint #4426.
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20. Uccellini, Louis W.; Brill, Keith F.; Petersen, Ralph A.; Keyser, Daniel; Aune, Robert; Kocin, Paul J. and des Jardins, Mary. A report on the upper-level wind conditions preceding and during the Shuttle Challenger (STS 51L) explosion. Bulletin of the the American Meteorological Society, Volume 67, Issue 10, 1986, pp.1248-1265. Reprint #5046.
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21. Petersen, Ralph A.; Uccellini, Louis W.; Mostek, Anthony and Keyser, Dennis A. Delineating mid- and low-level water vapor patterns in pre-convective environments using VAS moisture channels. Monthly Weather Review, Volume 112, Issue 11, 1984, pp.2178-2198. Reprint #4423.
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22. Uccellini, Louis W.; Kocin, Paul J.; Petersen, Ralph A.; Wash, Carlyle H. and Brill, Keith F. The Presidents' Day cyclone of 18-19 February 1979: Synoptic overview and analysis of the subtropical jet streak influencing the pre-cyclogenetic period. Monthly Weather Review, Volume 112, Issue 1, 1984, pp.31-55. Reprint #4424.
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23. Petersen, Ralph A.; Uccellini, Louis W.; Chesters, Dennis and Mostek, Anthony. The use of VAS satellite data in weather analysis, prediction and diagnosis. National Weather Digest, Volume 8, Issue 1, 1983, pp.12-23. Reprint #983.
24. Petersen, Ralph A. and Horn, L. H. An evaluation of 500 mb height and geostrophic wind fields derived from Nimbus-6 soundings. Bulletin of the American Meteorological Society, Volume 58, Issue 11, 1977, pp.1195-1201. Reprint #91.
25. Whittaker, Thomas M. and Petersen, Ralph A. Objective cross-sectional analyses incorporating thermal enhancement of the observed winds. Monthly Weather Review, Volume 105, Issue 2, 1977, pp.147-153. Reprint #354.
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