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Service Description: Full Metadata These maps show 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 2019 for 50 large metropolitan areas. The size of each circle indicates the absolute change over the period. Solid-color circles represent cities where the trend was statistically significant. For more information: www.epa.gov/climate-indicators
Map Name: Heat Wave Characteristics in 50 Large U.S. Cities, 1961–2019
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Description: Full Metadata These maps show 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 2019 for 50 large metropolitan areas. The size of each circle indicates the absolute change over the period. Solid-color circles represent cities where the trend was statistically significant. For more information: www.epa.gov/climate-indicators
Copyright Text: EPA
Spatial Reference:
102010
(102010)
Single Fused Map Cache: false
Initial Extent:
XMin: -2517483.993875846
YMin: -2928939.2651345683
XMax: 2862357.038369601
YMax: 1714712.99427729
Spatial Reference: 102010
(102010)
Full Extent:
XMin: -2794198.3053430147
YMin: -2390953.4662923105
XMax: 3139071.3498367704
YMax: 1176727.1952047665
Spatial Reference: 102010
(102010)
Units: esriMeters
Supported Image Format Types: PNG32,PNG24,PNG,JPG,DIB,TIFF,EMF,PS,PDF,GIF,SVG,SVGZ,BMP
Document Info:
Title: Heat Wave Characteristics in 50 Large U.S. Cities, 1961–2019
Author: GIS
Comments: Full Metadata These maps show 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 2019 for 50 large metropolitan areas. The size of each circle indicates the rate of change per decade. Solid-color circles represent cities where the trend was statistically significant. For more information: www.epa.gov/climate-indicators
Subject: This indicator describes trends in multi-day extreme heat events across the United States.
Category:
Keywords: Heat Waves,Weather,Heat,Health,Cities,Urban,Climate,Indicator
AntialiasingMode: None
TextAntialiasingMode: Force
Supports Dynamic Layers: true
MaxRecordCount: 1000
MaxImageHeight: 4096
MaxImageWidth: 4096
Supported Query Formats: JSON, geoJSON
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Min Scale: 0
Max Scale: 0
Supports Datum Transformation: true
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