Synthesis of Publications on the Anomalous June 2021 Heat Wave in the Pacific Northwest of the United States and Canada
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Notice bibliographique
Résumé
Abstract We synthesized more than 70 articles, most peer reviewed, that addressed the heat wave that occurred across the Pacific Northwest of the United States and Canada in late June 2021, breaking hundreds of daily and all-time daily maximum temperature records across the region. A persistent, extraordinarily strong ridge of high pressure was a primary driver of the heat wave. Contributing mechanisms were moisture originating in the tropical western Pacific Ocean, high solar radiation, low pressure offshore, large-scale subsidence over land, and unusually dry soils. Climate change contributed to the heat wave’s magnitude by increasing mean temperature, although it is unclear whether the trend in extreme temperature is steeper than the trend in mean temperature. Mortality, heat-induced illness, and the number of visits to emergency departments during the 2021 heat wave were anomalously high. Individual and compounded social determinants of adverse outcomes included older age, living alone, lower income, and lack of functioning air conditioning. Browning or scorch of tree leaves and needles following the heat wave was extensive, although the extent of long-term tree mortality is not yet clear. Following the heat wave, Oregon, Washington, and British Columbia established new regulations and programs to reduce the risk of heat-related illness in the workplace. It is not yet feasible to rigorously evaluate the effectiveness of these new initiatives. Significance Statement We synthesized more than 70 publications that addressed the causes and consequences of the extreme heat wave across the Pacific Northwest of the United States and Canada in late June 2021 and the potential for similar future heat waves. Interest in the heat wave among scientists, policymakers, and the public continues to be intense. Climate change contributed to the heat’s magnitude, and many publications indicated that a similarly intense heat wave was extremely unlikely prior to the Industrial Revolution. Mortality and heat-induced illness during the heat wave were anomalously high, especially among older adults. Extensive scorch of tree leaves and needles followed the heat wave. In response to the heat wave, Oregon, Washington, and British Columbia established new protective regulations.
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Prédiction distillée sur la base complète
Imitation des enseignantsNi prévalence calibrée, ni vérité terrain. Validation humaine à venir. Apprise à partir de 10 348 étiquettes directes de Codex et de 10 348 étiquettes directes de Gemma. Le mode candidate est l'union des têtes enseignantes seuillées; le consensus est leur intersection. Ces sorties portent le statut machine_predicted_unvalidated et ne sont ni des étiquettes humaines ni des étiquettes directes de modèles de pointe.
Scores Codex et Gemma par catégorie
| Catégorie | Codex | Gemma |
|---|---|---|
| Métarecherche | 0,001 | 0,000 |
| Méta-épidémiologie (sens strict) | 0,000 | 0,000 |
| Méta-épidémiologie (sens large) | 0,000 | 0,000 |
| Bibliométrie | 0,000 | 0,001 |
| Études des sciences et des technologies | 0,000 | 0,001 |
| Communication savante | 0,000 | 0,000 |
| Science ouverte | 0,000 | 0,000 |
| Intégrité de la recherche | 0,000 | 0,000 |
| Charge utile insuffisante (le modèle a refusé de juger) | 0,001 | 0,000 |
Scores machine (provisoires)
Les deux têtes enseignantes du modèle étudiant, lues sur ce travail. Un score ordonne la base pour la relecture; il n'affirme jamais une catégorie, et le statut de validation accompagne chaque rangée tel quel.
Scores de référence d'un modèle non mature (critères de maturité non atteints, 7 itérations). Un score ordonne; il n'affirme jamais une catégorie.
score_only:v0-immature-baseline · tel quel depuis la passe de notation : score_only signifie que le nombre peut ordonner les travaux, et qu'aucune étiquette de catégorie n'en découle