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Author Topic: Climate Change Indicators: Heat Waves  (Read 831 times)

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Online rangerrebew

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Climate Change Indicators: Heat Waves
« on: July 27, 2024, 06:31:37 am »
Climate Change Indicators: Heat Waves
This indicator describes trends in multi-day extreme heat events across the United States.

graph figureFigure 1. Heat Wave Characteristics by Decade
map figureFigure 2. Heat Wave Characteristics in Cities
graph figureFigure 3. Heat Wave Index
Figure 1. Heat Wave Characteristics in the United States by Decade, 1961–2023
Set of four graphs that show decadal averages from the 1960s through the 2020s for four characteristics of heat waves: the number that occur each year, their duration in number of days, the length of the annual heat wave season in days, and the intensity in terms of degrees above the heat wave temperature threshold.
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This figure shows changes in the number of heat waves per year (frequency); the average length of heat waves in days (duration); the number of days between the first and last heat wave of the year (season length); and how hot the heat waves were, compared with the local temperature threshold for defining a heat wave (intensity). These data were analyzed from 1961 to 2023 for 50 large metropolitan areas. The graphs show averages across all 50 metropolitan areas by decade.

Data source: NOAA, 20246
Web update: June 2024

Key Points | Background | About the Indicator | About the Data | Technical Documentation

Key Points

https://www.epa.gov/climate-indicators/climate-change-indicators-heat-waves
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Online rangerrebew

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Re: Climate Change Indicators: Heat Waves
« Reply #1 on: July 27, 2024, 06:34:12 am »
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The unity of government which constitutes you one people is also now dear to you. It is justly so, for it is a main pillar in the edifice of your real independence, the support of your tranquility at home, your peace abroad; of your safety; of your prosperity; of that very liberty which you so highly prize. But as it is easy to foresee that, from different causes and from different quarters, much pains will be taken, many artifices employed to weaken in your minds the conviction of this truth.  George Washington - Farewell Address

Online MeganC

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Re: Climate Change Indicators: Heat Waves
« Reply #2 on: July 27, 2024, 12:51:14 pm »
Summer is typically hotter than winter.
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Offline Kamaji

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Re: Climate Change Indicators: Heat Waves
« Reply #3 on: July 27, 2024, 09:39:13 pm »
:facepalm2:

Earth is coming out of an ice age.  It's supposed to be getting warmer!!
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Online Smokin Joe

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Re: Climate Change Indicators: Heat Waves
« Reply #4 on: July 27, 2024, 10:33:58 pm »
Quote from: Kamaji on July 27, 2024, 09:39:13 pm
:facepalm2:

Earth is coming out of an ice age.  It's supposed to be getting warmer!!
I know of at least two instances of warming from the bottom of the data stack, where severe low temperatures were 'adjusted' several degrees warmer than what was reported there and then by the NWS.

If they keep diddling the data set we'll all catch fire. 9999hair out0000
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