Park Access by Census Tract and County

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This updated dataset reports the number and percentage of people within a buffer of ½ mile radius of a park at the census tract level. Data were obtained from the Centers for Disease Control and Prevention (CDC) Environmental Public Health Tracking Network (EPHTN). Park boundaries used in the CDC analysis are from Esri StreetMap Premium/HERE, 2016, and the 2015 PAD-US.

Food Desert Census Tracts, Change 2015-2019

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This layer displays the change in census tracts labeled as Food Deserts from 2015 to 2019. The Healthy Food Financing Initiative (HFFI) Working Group considers a food desert as a low-income census tract where a substantial number or share of residents has low access to a supermarket or large grocery store.

Low Food Access Population, 2019

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This layer displays the percentage and total population with Limited Food Access across the US. A population is defined as having limited food access if they are living more than 1 mile from a supermarket or large grocery store if in an urban area, or more than 10 miles from a supermarket or large grocery store if in a rural area.

Food Desert Census Tracts, 2019

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This layer displays the location of Food Deserts across the United States based on conditions in 2015. The Healthy Food Financing Initiative (HFFI) Working Group considers a food desert as a low-income census tract where a substantial number or share of residents has low access to a supermarket or large grocery store.

Drought Intensity, U.S. Drought Monitor

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This layer displays areas that experienced dry or drought conditions in the last seven days. Data are retrieved as shapefiles from the U.S. Drought Monitor and are updated on a weekly basis. The affected areas are represented by polygons, which are classified according to drought intensity. Using quantitative and objective indicators, as well as local condition and impact reports, the U.S. Drought Monitor defines each drought intensity level as follows:

D0 – Abnormally Dry
D1 – Moderate Drought
D2 – Severe Drought
D3 – Extreme Drought
D4 – Exceptional Drought
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For more information about the data, please see the U.S. Drought Monitor Data Classification web page.

Park Access – Census Tracts

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Layer displays percent and total population living within 0.5 miles of a park boundary. Data is available by US census tract.

PRISM 30-Year Average Precipitation, 1981 – 2010

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This layer depicts average annual precipitation amounts based on data from 1981 to 2010. Data was obtained from the PRISM Climate Group at Oregon State University. PRISM models climate information using a process which incorporates a digital elevation model. Monthly average data is also available.

PRISM 30-Year Average Temperature, 1981 – 2010

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This layer depicts average annual temperature based on data from 1981 to 2010. Data was obtained from the PRISM Climate Group at Oregon State University. PRISM models climate information using a process which incorporates a digital elevation model. Monthly average data is also available.

PRISM 30-Year Average Maximum Temperature, 1981 – 2010

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This layer depicts average annual maximum (high) temperature based on data from 1981 to 2010. Data was obtained from the PRISM Climate Group at Oregon State University. PRISM models climate information using a process which incorporates a digital elevation model. Monthly average data is also available.

PRISM 30-Year Average Minimum Temperature, 1981 – 2010

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This layer depicts average annual minimum(low) temperature based on data from 1981 to 2010. Data was obtained from the PRISM Climate Group at Oregon State University. PRISM models climate information using a process which incorporates a digital elevation model. Monthly average data is also available.