A new perspective on blocking

By J. Pelly, B. Hoskins. 2003

485 citations recorded by the source corpus.

Subfields: Atmospheric Science, Global and Planetary Change, Oceanography

View Paper: https://www.semanticscholar.org/paper/6dc1d0dba300ec0830ab316204cbb84c265c97f2

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Citations in the corpus

The relationship of winter season North Atlantic blocking frequencies to extreme cold or dry spells in the ERA-40 (2011, methodology): “Current studies deduce blocking climatologies and investigate their characteristics and connections to the mean flow (Sinclair, 1996; Shabbar et al., 2001; Pelly and Hoskins, 2003; Barriopedro et al., 2006; Scherrer et al., 2006; Croci-Maspoli et al., 2007; Woollings et al., 2008).”
Perspicacious indicators of atmospheric blocking (2004, background): “[23] In generic terms the APV indicator identifies blocks with a distinctive synoptic structure [cf. Sumner, 1954; Pelly and Hoskins, 2003] and the APV8 indicator identifies significant departure away from the in-situ climatology [Dole and Gordon, 1983].”
Using a Stochastic Kinetic Energy Backscatter Scheme to Improve MOGREPS Probabilistic Forecast Skill (2011, methodology): “To investigate this we have used a PV2u blocking index (Pelly and Hoskins 2003) that finds the difference between the average potential temperature u on a potential vorticity surface of PVU 5 2 (1 PVU 5 10 m K s kg) in two 158-latitude bands north and south of 508N.”
A methodology for the comparison of blocking climatologies across indices, models and climate scenarios (2012, methodology): “1.1.2 PV-h indices Pelly and Hoskins (2003) (PH) introduced a blocking index defined by analyzing h2, which has the advantage of being closely linked to the large-scale dynamics due to the conservation of potential temperature in the absence of diabatic processes.”
Bidimensional Diagnostics, Variability, and Trends of Northern Hemisphere Blocking (2012, methodology): “of continuous longitude, a spatial constraint analogous to the one usually seen in the literature (e.g., Tibaldi and Molteni 1990; Pelly and Hoskins 2003).”
Blocking and its Response to Climate Change (2018, unknown): “been applied to account for spatial [90] or seasonal [85] variations of the jet stream, or to design more optimal filters [91].”
Atmospheric Blocking and Mean Biases in Climate Models (2010, background): “Since commonly used blocking indices count the frequency of reversal of the meridional gradient of, for example, geopotential height (Tibaldi and Molteni 1990) or potential temperature (Pelly and Hoskins 2003), we consider meridional gradients: ›M(t)”
Aspects of a Northern Hemisphere Atmospheric Blocking Climatology (2008, methodology): “Other methods use a variety of techniques based on measures of the strength of the westerly flow (e.g., Lejenas and Okland 1983; Tibaldi and Molteni 1990; Pelly and Hoskins 2003), or on the identification of persistent positive height anomalies (Dole and Gordon 1983; Dole 1986).”
Variability of the North Atlantic eddy‐driven jet stream (2010, unknown): “The peak of the PDF lies in the NAO+/EA+ quadrant and skewness is clear along both the NAO (as in Woollings et al., 2010) and EA axes. There are two spurs of high probability extending in the negative NAO and EA directions from the peak of the PDF. There is a region of low probability in the NAO− /E”
Extreme moisture transport into the Arctic linked to Rossby wave breaking (2014, background): “Climate models project continued Arctic amplification in the future as a response to greenhouse gas increases [e.g., Holland and Bitz, 2003; Hansen et al., 2005].”
Atmospheric blocking in a high resolution climate model: influences of mean state, orography and eddy forcing (2013, methodology): “This structure exists in both the Atlantic and Pacific, although in the latter it can often look more like an amplified ridge with an omega structure (Pelly and Hoskins, 2003).”
A Multifaceted Climatology of Atmospheric Blocking and Its Recent Linear Trend (2007, methodology): “In relation to frequency we note that the relatively higher values of 20% (Tibaldi and Molteni 1990) and up to 30% (Pelly and Hoskins 2003) in the Euro–Atlantic sector compared to the present study’s APV* maxima of 13% were derived with different threshold values for block duration.”
The Link between Rossby Wave Breakings and Weather Regime Transitions (2011, background): “One classical weather regime is the blocking for which the formation, the maintenance and the decay are still a matter of debate (e.g., Pelly and Hoskins 2003; Altenhoff et al. 2008).”
Overview of the Norwegian Earth System Model (NorESM2) and key climate response of CMIP6 DECK, historical, and scenario simulations (2020, methodology): “To diagnose blocking, we apply the variational Tibaldi and Molteni (vTM) index (Tibaldi and Molteni, 1990; Pelly and Hoskins, 2003; Iversen et al., 2013; Graff et al., 2019).”