Now showing items 2681-2700 of 2722

    • Multisensor Estimation of Mixing Heights over a Coastal City 

      Nielsen-Gammon, John W.; Powell, Christina L.; Mahoney, M. J.; Angevine, Wayne M.; Senff, Christoph; White, Allen; Berkowitz, Carl; Doran, Christopher; Knupp, Kevin (American Meteorological Society, 2008)
      An airborne microwave temperature profiler (MTP) was deployed during the Texas 2000 Air Quality Study (TexAQS-2000) to make measurements of boundary layer thermal structure. An objective technique was developed and tested ...
    • Atmospheric Response to a Partial Solar Eclipse over a Cotton Field in Central California 

      Mauder, Matthias; Desjardins, R. L.; Oncley, Steven P.; MacPherson, Ian (American Meteorological Society, 2007)
      The partial solar eclipse on 11 July 1991 in central California, with 58.3% maximum coverage, provided an exceptional opportunity to study the temporal response of processes in the atmospheric boundary layer to an abrupt ...
    • High-Resolution Weather Database for the Terminal Area of Frankfurt Airport 

      Frech, Michael; Holzäpfel, Frank; Tafferner, Arnold; Gerz, Thomas (American Meteorological Society, 2007)
      A 1-yr meteorological dataset for the terminal area of Frankfurt Airport in Germany has been generated with a numerical weather prediction system to provide a synthetic though realistic database for the evaluation of new ...
    • Optimizing Crop Insurance under Climate Variability 

      Liu, Juan; Men, Chunhua; Cabrera, Victor E.; Uryasev, Stan; Fraisse, Clyde W. (American Meteorological Society, 2008)
      This paper studies the selection of optimal crop insurance under climate variability and fluctuating market prices. A model was designed to minimize farmers? expected losses (including insurance costs) while using the ...
    • Modeling Optical Turbulence and Seeing over Mauna Kea 

      Cherubini, T.; Businger, S.; Lyman, R.; Chun, M. (American Meteorological Society, 2008)
      Atmospheric turbulence is a primary concern for astronomers. Turbulence causes amplitude and phase fluctuations in electromagnetic waves propagating through the atmosphere, constraining the maximum telescope resolution and ...
    • Impact of Vegetation Types on Surface Temperature Change 

      Lim, Young-Kwon; Cai, Ming; Kalnay, Eugenia; Zhou, Liming (American Meteorological Society, 2008)
      The impact of different surface vegetations on long-term surface temperature change is estimated by subtracting reanalysis trends in monthly surface temperature anomalies from observation trends over the last four decades. ...
    • Data Quality Assessment and the Long-Term Trend of Ground Solar Radiation in China 

      Shi, Guang-Yu; Hayasaka, Tadahiro; Ohmura, Atsumu; Chen, Zhi-Hua; Wang, Biao; Zhao, Jian-Qi; Che, Hui-Zheng; Xu, Li (American Meteorological Society, 2008)
      Solar radiation is one of the most important factors affecting climate and the environment. Routine measurements of irradiance are valuable for climate change research because of long time series and areal coverage. In ...
    • A Quality Assurance System for Canadian Hourly Pressure Data 

      Wan, Hui; Wang, Xiaolan L.; Swail, Val R. (American Meteorological Society, 2007)
      In this study a comprehensive quality assurance (QA) system, which includes the hydrostatic check combined with a statistical homogeneity test, is designed and applied to hourly pressure records (for 1953?2002) from 761 ...
    • Climate, Extreme Heat, and Electricity Demand in California 

      Miller, Norman L.; Hayhoe, Katharine; Jin, Jiming; Auffhammer, Maximilian (American Meteorological Society, 2008)
      Over the twenty-first century, the frequency of extreme-heat events for major cities in heavily air conditioned California is projected to increase rapidly. Extreme heat is defined here as the temperature threshold for the ...
    • Composite Atmospheric Environments of Jet Contrail Outbreaks for the United States 

      Carleton, Andrew M.; Travis, David J.; Master, Kara; Vezhapparambu, Sajith (American Meteorological Society, 2008)
      The cirrus-level ?condensation trails? (contrails) produced by jet aircraft are considered to influence surface climate and its recent changes. To reveal the synoptic atmospheric environments typically associated with ...
    • Estimation of Incident Photosynthetically Active Radiation from GOES Visible Imagery 

      Zheng, Tao; Liang, Shunlin; Wang, Kaicun (American Meteorological Society, 2008)
      Incident photosynthetically active radiation (PAR) is an important parameter for terrestrial ecosystem models. Because of its high temporal resolution, the Geostationary Operational Environmental Satellite (GOES) observations ...
    • Modeling the Contribution of the Brussels Heat Island to a Long Temperature Time Series 

      Van Weverberg, K.; De Ridder, K.; Van Rompaey, A. (American Meteorological Society, 2008)
      A mesoscale meteorological model containing a detailed land surface model is used to assess the contribution of urban heating to the temperature record of the national recording station of Belgium in Uccle, near Brussels. ...
    • Mesoscale Boundary Layer and Heat Flux Variations over Pack Ice–Covered Lake Erie 

      Gerbush, Mathieu R.; Kristovich, David A. R.; Laird, Neil F. (American Meteorological Society, 2008)
      The development of extensive pack ice fields on the Great Lakes significantly influences lake-effect storms and local airmass modification, as well as the regional hydrologic cycle and lake water levels. The evolution of ...
    • Surface Wind Regionalization in Complex Terrain 

      Jiménez, P. A.; García-Bustamante, E.; González-Rouco, J. F.; Valero, F.; Montávez, J. P.; Navarro, J. (American Meteorological Society, 2008)
      Daily wind variability in the Comunidad Foral de Navarra in northern Spain was studied using wind observations at 35 locations to derive subregions with homogeneous temporal variability. Two different methodologies based ...
    • Dominant Regimes of the Ross Ice Shelf Surface Wind Field during Austral Autumn 2005 

      Seefeldt, Mark W.; Cassano, John J.; Parish, Thomas R. (American Meteorological Society, 2007)
      An analysis of the surface wind field across the Ross Ice Shelf, Antarctica, is conducted for austral autumn 2005. The airflow is divided into dominant wind regimes identifying similar wind patterns and the associated ...
    • The Identification and Verification of Hazardous Convective Cells over Oceans Using Visible and Infrared Satellite Observations 

      Donovan, Michael F.; Williams, Earle R.; Kessinger, Cathy; Blackburn, Gary; Herzegh, Paul H.; Bankert, Richard L.; Miller, Steve; Mosher, Frederick R. (American Meteorological Society, 2008)
      Three algorithms based on geostationary visible and infrared (IR) observations are used to identify convective cells that do (or may) present a hazard to aviation over the oceans. The performance of these algorithms in ...
    • The Relationship of Lightning Activity with Microwave Brightness Temperatures and Spaceborne Radar Reflectivity Profiles in the Central and Eastern Mediterranean 

      Katsanos, D. K.; Lagouvardos, K.; Kotroni, V.; Argiriou, A. A. (American Meteorological Society, 2007)
      In this paper, the relationship of lightning activity in the central and eastern Mediterranean with the 85-GHz polarization-corrected temperature (PCT) and radar reflectivity provided by the Tropical Rainfall Measuring ...
    • Time Series of Daily Averaged Cloud Fractions over Landfast First-Year Sea Ice from Multiple Data Sources 

      Jin, Xin; Hanesiak, John M.; Barber, David G. (American Meteorological Society, 2007)
      The time series of daily averaged cloud fractions (CFs) collected from different platforms?two Moderate Resolution Imaging Spectroradiometer (MODIS) instruments on Terra and Aqua satellites, the National Centers for ...
    • A Semiempirical Microscale Model of the Surface Energy Balance and Its Application to Two Urban Rooftops 

      Barzyk, Timothy M.; Frederick, John E. (American Meteorological Society, 2008)
      Individual structures within the same local-scale (102?104 m) environment may experience different microscale (<103 m) climates. Urban microclimate variations are often a result of site-specific features, including spatial ...
    • Determining the Sources of Regional Haze in the Southeastern United States Using the CMAQ Model 

      Odman, M. Talat; Hu, Yongtao; Unal, Alper; Russell, Armistead G.; Boylan, James W. (American Meteorological Society, 2007)
      A detailed sensitivity analysis was conducted to help to quantify the impacts of various emission control options in terms of potential visibility improvements at class I national parks and wilderness areas in the southeastern ...