4 Matching Annotations
- Aug 2023
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www.nature.com www.nature.com
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The hottest days of the 2021 heatwave coincided with very low, early afternoon low tides throughout most of the Salish Sea (the inland waters of BC and Washington State). As a result, surface temperatures in excess of 50 °C were observed in the intertidal zone (Fig. 6a, b), particularly on gently sloping south and west-facing surfaces that received the most direct solar radiation.
- for: intertidal zones, Canary in the mineshaft, Pacific Northwest heatwave, marine heatwave
- paraphrase
- Rocky intertidal shores are some of the most physically stressful habitats on Earth, and
- many of the species that occupy them often live very close to their physiological tolerance limits.
- Intertidal ecosystems are therefore often used as bellwethers for the ecological effects of
- climate change and
- extreme weather events.
- Plants and animals that live in the intertidal zone are especially susceptible to extremely high temperatures during daytime low tides,
- when solar radiation can raise organismal body temperatures well above air temperature.
- The hottest days of the 2021 heatwave coincided with
- very low, early afternoon low tides throughout most of the Salish Sea (the inland waters of BC and Washington State).
- As a result, surface temperatures in excess of 50 °C were observed in the intertidal zone,
- particularly on gently sloping south and west-facing surfaces that received the most direct solar radiation.
- Rocky intertidal shores are some of the most physically stressful habitats on Earth, and
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This “heat dome” phrase is not a common phrase within the scientific community
- for: definition, definition - heat dome, Pacific Northwest heatwave
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paraphrase
- This event was widely described in the media as a “heat dome”, wherein
- subsidence/adiabatic warming,
- “trapped air”, and
- sensible heating
- are the dominant mechanisms driving the anomalous heat.
- This conceptual model ignores the role of upstream diabatic heating,
- which our analysis
- shows is a significant heat source.
- This “heat dome” phrase is not a common phrase within the scientific community
- This event was widely described in the media as a “heat dome”, wherein
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comment
- the authors do not refer to this event as a heat dome, as is popularly used in the media because diabatic heating was involved
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near-term forecasts of this event were good, albeit underestimating the magnitude of the maximum temperatures.
- for: weather prediction, climate prediction, Pacific Northwest heatwave, comment, question, question - Pacific Northwest heatwave
- paraphrase
- near-term forecasts of this event were good, albeit underestimating the magnitude of the maximum temperatures.
- comment
- question
- could appropriate measures have been in taken, our were the predicted temperature so far off that appropriate measures could not be recommended?
- in particular, with the mass dieoff from the marine heatwave of an estimate billion marines organisms due to:
- low tide,
- high surface air temperature and
- elevated ocean temperatures,
- could interventions have been organized such as:
- increasing dissolved oxygen levels in parts of the ocean dense with sea life or
- soaking shellfish exposed to extreme sea surface temperature?
- what are the future impacts in terms of biodiversity loss and extinction?
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An unprecedented heatwave occurred in the Pacific Northwest (PNW) from ~25 June to 2 July 2021, over lands colonially named British Columbia (BC) and Alberta (AB) in Canada, Washington (WA), and Oregon (OR) in the United States.
- for climate change - impacts, climate departure, extinction, biodiversity loss, marine heat wave, ubc, Pacific Northwest heatwave
- paraphrase
- stats
- An unprecedented heatwave occurred in the Pacific Northwest (PNW)
- from ~25 June to 2 July 2021,
- over lands colonially named
- British Columbia (BC)
- Alberta (AB) in Canada,
- Washington (WA),
- Oregon (OR) in the United States.
- Near-surface air temperature anomalies reached up to 16–20 °C above normal over a wide region (Fig. 1),
- with many locations breaking all-time maximum temperature records by more than 5 °C (Fig. 2a).
- The Canadian national temperature record was broken 3 days in a row, at multiple locations,
- with the highest temperature of 49.6 °C recorded in Lytton, BC, on 29 June (Figs. 1b),
- 4.6 °C higher than the Canadian record prior to this event.
- The new record temperature was reportedly the hottest worldwide temperature recorded north of 45° latitude,
- and hotter than any recorded temperature in Europe or South America.
- An unprecedented heatwave occurred in the Pacific Northwest (PNW)
Tags
- Intertidal zone
- diabatic heating
- Pacific Northwest heat wave
- comment
- Extinction
- Question - Pacific Northwest heatwave
- marine heat wave
- definition - heat dome
- UBC research
- Question
- biodiversity loss
- Climate departure
- Climate change - impacts.
- definition
- comment - Pacific Northwest heatwave
- Pacific Northwest heatwave
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