Service Description: Census Block Group analysis of Canopy Cover and Impervious Cover to estimate potential heat islands, joined with NJDEP Environmental Justice Overburdened Communities data.
Service ItemId: a1f0bdf81c4742e6beac89ccdbb39a80
Has Versioned Data: false
Max Record Count: 2000
Supported query Formats: JSON
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Description: The Heat Island and Overburdened Communities Analysis was created by combining an analysis of the proportion of canopy cover to impervious cover within a Census Block Group and joining that data with the NJ Department of Environmental Protection's Environmental Justice Law's Overburdened Communities dataset. The Heat Island analysis is performed using the Multi-Resolution Land Characteristics Consortium (MRLC) National Land Cover Database for US Forest Service Tree Canopy Cover and Percent Developed Imperviousness datasets for the continental US. The mean percent of each of these variables was calculated for each Census Block Group in NJ, and then the ratio of canopy cover to impervious cover was calculated and normalized to the total area of both combined to generate a -1 to +1 ratio index where -1 represents 100% of the area measured as impervious cover and +1 represents 100% of the area measured as canopy cover, with 0 representing an even split in area between canopy cover and impervious cover. This dataset was then joined to the overburdened community dataset in order to allow users to identify coincident cases of potential heat islands from high proportions of impervious cover to canopy cover and areas designated as overburdened communities that may be adversely affected by these effects. For visualization purposes, the dataset is represented as two separate layers in this map service in order to easily see both the overburdened communities and the heat island analysis.
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Spatial Reference: 102711 (3424)
Initial Extent:
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Spatial Reference: 102711 (3424)
Full Extent:
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Spatial Reference: 102711 (3424)
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