SAN DIEGO, California (KGTV) – The city of San Diego recently orchestrated a citywide study to analyze temperature variations in different parts of the city at the same time and found that on a warm day, temperatures can vary by 15 degrees. different neighborhoods in San Diego.
With this knowledge, city leaders hope to build infrastructure that will help cool some of the hottest parts of the city.
The process began in September 2021 when volunteers connected National Oceanic and Atmospheric Administration (NOAA) devices and drove 21 different routes across the city.
Related: The city of San Diego publishes a plan to address climate change
“They drove on pre-designated map routes and the sensors picked up the different ambient temperatures along the routes every second,” said Heidi Vonblum, interim planning director for the San Diego City Planning Department.
Vonblum says 90,000 measurements were made during the study, and then that data was sent to CAPA Strategies, which collected the information and created a map of temperatures in the city.
Ultimately, the map shows that temperatures can fluctuate 15 degrees at any given time within city limits.
There are certain parts of San Diego that are much hotter, and Vonblum said a big reason for the differences is the infrastructure.
“The level of tree cover coverage, the availability of shade, the type of pavement on this particular street block can make all the difference in how people experience an extreme heat event,” he said.
He added that many of the neighborhoods that tend to be warmer are also low-income areas, or areas that the city calls “worrying communities,” where census data show people have less access to opportunities and face more barriers to improving the quality of life. To add fuel to the fire, important resources such as air conditioning may be more difficult for these communities to achieve due to older infrastructure or lower incomes.
City leaders now want to take that knowledge and take action to correct disparities. Vonblum says they will implement strategies that will ultimately help keep hyperlocal temperatures cooler in these hot spots.
“These strategies may include expanding access to green spaces, urban greening, expanding our urban tree cover and also, in general, increasing shade in our public spaces.” , said Vonblum.
All of this is part of a global initiative that the city of San Diego announced in 2021 called Climate Resilient SD, which describes the problems that contribute to local climate change and ideas on how to correct them. The city is facing four major problems, such as rising sea levels, floods / droughts, extreme heat and wildfires. Heat map data will help you make decisions about how to deal with extreme heat.
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