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.
Results
Showing 1 to 8 of 8 for “"Atmospheric Blocking"”.
-
Precursors to atmospheric blocking events
Atmospheric blocking disturbs synoptic-scale features from their normal eastward progression, causing extreme weather conditions for the duration of the blocking event. Blocking precursors, as indicators of meridional flow preceding the onset of strong Atlantic blocking episodes, have been …
-
Precursors to atmospheric blocking events
Atmospheric blocking events disturb synoptic-scale features from their normal eastward progression, causing anomalous weather conditions for the duration of the blocking event. The essence of blocking can be captured by variation of potential temperature ([theta]trop) on the dynamically-defined …
-
Scale and stability analysis of selected atmospheric blocking events
Global six year climatology of mid latitude atmospheric blocking events, during the period 1999-2004, is presented based on the scale and stability analysis, using the NCEP/NCAR re-analysis data. A total of 278 blocking events over the Northern as well as the Southern Hemispheres are analyzed. It …
-
Evidence of thermal equilibration in large-scale atmospheric blocking episodes over Europe and the North Atlantic during winter
Atmospheric thermal equilibration occurs when all thermal forcings diminish. Characteristics of equilibration include low diabatic heating and calm conditions throughout the atmospheric column. Large-scale planetary waves can remain in these equilibrated states for long time periods, as identified …
-
Subseasonal to seasonal prediction and predictability of extreme and severe weather
… result in successful statistical prediction of atmospheric blocking, extreme temperatures, and severe weather activity. Successful prediction of extremes on the S2S timescale is becoming more desired for several socio-economic sectors. The studies that are presented in this dissertation have …
-
Stratospheric Influence On The Breakdown Of A January 2009 Blocking Episode
In previous research on atmospheric blocking the interest has primarily been on the onset of blocking. To fully understand a blocking episode, the end, or breakdown, must also be investigated. The focus of this research was to examine the dynamics of block breakdown, with special notice to the …