Now showing items 3781-3800 of 5116

    • Simulations of the ENSO Hydroclimate Signals in the Pacific Northwest Columbia River Basin 

      Leung, L. Ruby; Hamlet, Alan F.; Lettenmaier, Dennis P.; Kumar, Arun (American Meteorological Society, 1999)
      Natural fluctuations in the atmosphereocean system related to the El NiñoSouthern Oscillation (ENSO) induce climate variability over many parts of the world that is potentially predictable with lead times from seasons to ...
    • Workshop on Targeted Observations for Extratropical and Tropical Forecasting 

      Langland, R. (American Meteorological Society, 1999)
      No Abstract Available
    • NCAR–NOAA Lower-Tropospheric Water Vapor Workshop 

      Weckwerth, Tammy M.; Wulfmeyer, Volker; Wakimoto, Roger M.; Hardesty, R. Michael; Wilson, James W.; Banta, Robert M. (American Meteorological Society, 1999)
      A workshop on remote sensing of lower-tropospheric water vapor, jointly sponsored by the National Center for Atmospheric Research (NCAR) and the National Oceanic and Atmospheric Administration, was held on 30 June and 1 ...
    • Advances in Understanding Clouds from ISCCP 

      Rossow, William B.; Schiffer, Robert A. (American Meteorological Society, 1999)
      This progress report on the International Satellite Cloud Climatology Project (ISCCP) describes changes made to produce new cloud data products (D data), examines the evidence that these changes are improvements over the ...
    • The Limitations of the WSR-88D Radar Network for Quantitative Precipitation Measurement over the Coastal Western United States 

      Westrick, Kenneth J.; Mass, Clifford F.; Colle, Brian A. (American Meteorological Society, 1999)
      An objective assessment of the WSR-88D radar coverage for detection and quantitative measurement of precipitation over the U.S. west coast is presented. As a result of significant terrain blockage, shallow precipitation, ...
    • New Directions in Earth Observing: Scientific Applications ofMultiangle Remote Sensing 

      Diner, David J.; Asner, Gregory P.; Davies, Roger; Knyazikhin, Yuri; Muller, Jan-Peter; Nolin, Anne W.; Pinty, Bernard; Schaaf, Crystal B.; Stroeve, Julienne (American Meteorological Society, 1999)
      The physical interpretation of simultaneous multiangle observations represents a relatively new approach to remote sensing of terrestrial geophysical and biophysical parameters. Multiangle measurements enable retrieval of ...
    • Roll Clouds Associated with an East Asian Cold Front 

      Chen, Tsing-Chang; Yen, Ming-Cheng; Wang, Shih-Yu; Arritt, Raymond W. (American Meteorological Society, 1999)
      On 11 January 1998, a cold front formed in southeast China as a result of a cold-air outbreak in northeast Asia. During this synoptic development, a series of roll clouds (along the SW?NE direction) was observed in East ...
    • Remote Sensing of Tropospheric Aerosols from Space: Past, Present, and Future 

      King, Michael D.; Kaufman, Yoram J.; Tanré, Didier; Nakajima, Teruyuki (American Meteorological Society, 1999)
      Tropospheric aerosol particles originate from man-made sources such as urban/industrial activities, biomass burning associated with land use processes, wind-blown dust, and natural sources. Their interaction with sunlight ...
    • High-Resolution Satellite-Derived Dataset of the Surface Fluxes of Heat, Freshwater, and Momentum for the TOGA COARE IOP 

      Curry, J. A.; Clayson, C. A.; Rossow, W. B.; Reeder, R.; Zhang, Y-C.; Webster, P. J.; Liu, G.; Sheu, R-S. (American Meteorological Society, 1999)
      An integrated approach is presented for determining from several different satellite datasets all of the components of the tropical sea surface fluxes of heat, freshwater, and momentum. The methodology for obtaining the ...
    • An Agenda for Land Surface Hydrology Research and a Call for the Second International Hydrological Decade 

      Entekhabi, Dara; Asrar, Ghassem R.; Betts, Alan K.; Beven, Keith J.; Bras, Rafael L.; Duffy, Christopher J.; Dunne, Thomas; Koster, Randal D.; Lettenmaier, Dennis P.; McLaughlin, Dennis B.; Shuttleworth, William J.; van Genuchten, Martinus T.; Wei, Ming-Ying; Wood, Eric F. (American Meteorological Society, 1999)
      Hydrologic research at the interface between the atmosphere and land surface is undergoing a dramatic change in focus, driven by new societal priorities, emerging technologies, and better understanding of the earth system. ...
    • Were Noctilucent Clouds Caused by the Krakatoa Eruption? A Case Study of the Research Problems before 1885 

      Schröder, Wilfried (American Meteorological Society, 1999)
      It is known that noctilucent clouds were first observed in 1885, two years after the great Krakatoa eruption in the Sunda Straits. The preeminent question of whether noctilucent clouds appeared before 1885 is studied here ...
    • Statistics Education in the Atmospheric Sciences 

      Brown, Timothy J.; Berliner, L. Mark; Wilks, Daniel S.; Richman, Michael B.; Wilke, Christopher K. (American Meteorological Society, 1999)
      Analyses of atmospheric sciences data and models are heavily dependent upon statistical and probabilistic reasoning. Statistical methods have played an important role in establishing physical relationships of atmosphere-ocean-land ...
    • The IRI Seasonal Climate Prediction System and the 1997/98 El Niño Event 

      Mason, Simon J.; Goddard, Lisa; Graham, Nicholas E.; Yulaeva, Elena; Sun, Liqiang; Arkin, Phillip A. (American Meteorological Society, 1999)
      The International Research Institute for Climate Prediction (IRI) was formed in late 1996 with the aim of fostering the improvement, production, and use of global forecasts of seasonal to interannual climate variability ...
    • Decadal Variations of Tropical Cyclone Activity over the Central North Pacific 

      Chu, Pao-Shin; Clark, James D. (American Meteorological Society, 1999)
      Tropical cyclone activity (tropical depressions, tropical storms, and hurricanes combined) in the central North Pacific has been found to be on the rise and this increase amounts to about 3.2 cyclones over the last 32 years ...
    • A New Approach to an Accurate Wind Chill Factor 

      Bluestein, Maurice; Zecher, Jack (American Meteorological Society, 1999)
      Winter weather often shows a severity marked by low dry-bulb temperature combined with high wind speed. The wind chill factor is now a standard meteorological term to express this severity. This factor, or more appropriately ...
    • Radiosonde Observations from the Former Soviet “North Pole” Series of Drifting Ice Stations, 1954–90 

      Kahl, Jonathan D. W.; Zaitseva, Nina A.; Khattatov, V.; Schnell, R. C.; Bacon, Dina M.; Bacon, Jason; Radionov, V.; Serreze, M. C. (American Meteorological Society, 1999)
      An historical archive of over 25 000 radiosonde observations from the former Soviet "North Pole" series of drifting ice stations has been compiled and made available to interested researchers. This archive is the only ...
    • La Niña, El Niño and Atlantic Hurricane Damages in the United States 

      Pielke, Roger A.; Landsea, Christopher N. (American Meteorological Society, 1999)
      Hurricanes result in considerable damage in the United States. Previous work has shown that Atlantic hurricane landfalls in the United States have a strong relationship with the El Niño-Southern Oscillation phenomena. This ...
    • Updated Recommendations for Lightning Safety–1998 

      Holle, Ronald L.; López, Raúl E.; Zimmermann, Christoph (American Meteorological Society, 1999)
      No Abstract Available
    • Cognitive Illusions, Heuristics, and Climate Prediction 

      Nicholls, Neville (American Meteorological Society, 1999)
      A number of studies in meteorological journals have documented some of the constraints to the effective use of climate forecasts. One major constraint, the considerable difficulty people have in estimating and dealing with ...
    • The Effect of the 1997/98 El Niño on Individual Large-Scale Weather Events 

      Barsugli, Joseph J.; Whitaker, Jeffrey S.; Loughe, Andrew F.; Sardeshmukh, Prashant D.; Toth, Zoltan (American Meteorological Society, 1999)
      Can an individual weather event be attributed to El Niño? This question is addressed quantitatively using ensembles of medium-range weather forecasts made with and without tropical sea surface temperature anomalies. The ...