Atmospheric blocking and mean biases in climate models

Models often underestimate blocking in the Atlantic and Pacific basins and this can lead to errors in both weather and climate predictions. Horizontal resolution is often cited as the main culprit for blocking errors due to poorly resolved small-scale variability, the upscale effects of which help to maintain blocks. Although these processes are important for blocking, the authors show that much of the blocking error diagnosed using common methods of analysis and current climate models is directly attributable to the climatological bias of the model. This explains a large proportion of diagnosed blocking error in models used in the recent Intergovernmental Panel for Climate Change report. Furthermore, greatly improved statistics are obtained by diagnosing blocking using climate model data corrected to account for mean model biases. To the extent that mean biases may be corrected in low-resolution models, this suggests that such models may be able to generate greatly improved levels of atmospheric blocking

Charter High Schools' Effects on Educational Attainment and Earnings

This issue brief discusses a new analysis, using data from Florida and Chicago, suggesting that charter high schools are not only increasing postsecondary educational attainment but may also boost students' long-run earnings

Assessment of western rock lobster strategic management options. How do quota management systems work in Rock Lobster Fisheries? Vol. 4

Quota management systems are now in place for the New Zealand, Tasmanian and South Australian rock lobster fisheries. New Zealand was the first to move to QMS (1989), followed by the Southern Zone of South Australia (1993), Tasmania (1998) and Northern Zone South Australia (2001). As part of a review of the system of management used for the West Coast Rock Lobster Fishery, a West Australian delegation visited New Zealand, Tasmania and South Australia in 2004 to learn more about the management systems in place for their respective rock lobster fisheries

Interview with Tim Gill: Sonia Livingstone and Kate Cowan interview with Tim Gill

To understand research and advocacy work on childhood and play, Sonia Livingstone OBE and Kate Cowan spoke to Tim Gill as part of our interview series on play in the digital world

Sugar taxation: a good start but not the place to finish

No abstract available

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