Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 7 of 7 for “"seasonal characteristics"”.
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Seasonal characteristics of phytoplankton bloom phenology in the northern Benguela Upwelling System
Seasonal phytoplankton blooms in the Benguela Upwelling System (BUS) play a crucial role in ecosystem services and driving climate change through air-sea gas exchanges. Upwelling systems are particularly are sensitive to effects of climate change including the transport of nutrients, which …
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An analysis of northern hemisphere block sizes compared to climatology and seasonal variations
… mid-latitude anticyclonic events and seasonal characteristics. A 20-year analysis of North American blocking events was compiled by calculating the mean size of each event using NCEP-NCAR analyses and a simplified Rossby wave equation. Blocking events were identified using block …
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Evaluation of Five Cycles of Selection for Canopy Photosynthesis in Corn
… of the study were to determine: (1) the seasonal characteristics of maize canopy CER, (2) heritability of canopy CER, (3) whether selection for canopy CER can be effective in increasing grain yield, (4) how other plant traits might vary with canopy CER, and (5) possible factors which may …
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A statistical climatology of mesospheric gravity wave activity over Urbana
… These variances are seen to have a repeatable seasonal structure, semiannual below 87 km and nearly constant above, across the five years of observations. A simple model based on linear saturation theory is found to be inadequate in reproducing the observed wave variances. However, it is also …
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Lidar remote sensing of aerosol and ozone profiles and application to air quality studies in New York City area
… (ML). We investigate the vertical, diurnal, and seasonal characteristics of the correlation between ceilometer attenuated backscatter coefficients and ground PM2.5, and aerosol homogeneity. Results show better overall correlation between attenuated backscatter and ground PM2.5 in summer, with …
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Effect of Short-Term Estrogen Depletion on Compact Bone Microdensitometry in the Ewe
… animal model due to their similar metabolic characteristics to that of a human. Like most animals, the ovine does not undergo a natural menopause and an ovariectomy was necessary to replicate the condition. The study objective was to quantify compact bone density present in ovine at three …
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Drylines over the interior of subtropical southern Africa
… often severe thunderstorm initiation, but their seasonal characteristics, formation mechanisms and the extent to which they influence convection, are largely unknown. By utilizing ERA5 reanalysis surface specific humidity and temperature data and an objective moisture and temperature gradient …