Digital Gems

Digital Gems

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Projected changes in persistent extreme summer weather events: The role of quasi-resonant amplification
Projected changes in persistent extreme summer weather events: The role of quasi-resonant amplification
Persistent episodes of extreme weather in the Northern Hemisphere summer have been associated with high-amplitude quasi-stationary atmospheric Rossby waves, with zonal wave numbers 6 to 8 resulting from the phenomenon of quasi-resonant amplification (QRA). A fingerprint for the occurrence of QRA can be defined in terms of the zonally averaged surface temperature field. Examining state-of-the-art [Coupled Model Intercomparison Project Phase 5 (CMIP5)] climate model projections, we find that QRA events are likely to increase by ~50% this century under business-as-usual carbon emissions, but there is considerable variation among climate models. Some predict a near tripling of QRA events by the end of the century, while others predict a potential decrease. Models with amplified Arctic warming yield the most pronounced increase in QRA events. The projections are strongly dependent on assumptions regarding the nature of changes in radiative forcing associated with anthropogenic aerosols over the next century. One implication of our findings is that a reduction in midlatitude aerosol loading could actually lead to Arctic de-amplification this century, ameliorating potential increases in persistent extreme weather events.
Projected changes in persistent extreme summer weather events: The role of quasi-resonant amplification
The Miami Movement fuels Q2 venture capital. South Florida VC rockets 271%, and we've got the top deals - Refresh Miami
The Miami Movement fuels Q2 venture capital. South Florida VC rockets 271%, and we've got the top deals - Refresh Miami
Venture capital investments in South Florida rocketed higher in the second quarter of 2021. In the Miami-Fort Lauderdale metro area, companies raised $831.4 million, a 271% increase in dollar value over the first quarter, according to  the Q2 Venture Monitor report. Yet, that Q2 haul was across 50 deals, down from 52 in Q1.
The Miami Movement fuels Q2 venture capital. South Florida VC rockets 271%, and we've got the top deals - Refresh Miami
Austin Is Biggest Winner From Tech Migration, LinkedIn Data Show
Austin Is Biggest Winner From Tech Migration, LinkedIn Data Show
Austin is the top beneficiary of tech-related migration in the past 12 months, according to data from Microsoft Corp.’s LinkedIn profiles. Nashville and Charlotte also saw noteworthy migration rates.
Austin Is Biggest Winner From Tech Migration, LinkedIn Data Show
The Economic Risks from Anti-Vaxxers - The Big Picture
The Economic Risks from Anti-Vaxxers - The Big Picture
To hear an audio spoken word version of this post, click here.   One of the favorite parts of my job is thinking about issues in ways other people often do not. That might include identifying where consensus may be wrong (Inflation, Urban Exodus, Insurrections) or market values responding differently than expected. Even for issues…Read More
The Economic Risks from Anti-Vaxxers - The Big Picture
Strategic Knowledge
Strategic Knowledge
Teens use “algorithmic folklore” to crack TikTok’s black box
Strategic Knowledge