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Article

U.S. State-level Projections of the Spatial Distribution of Population Consistent with Shared Socioeconomic Pathways

1
Office of Social & Behavioral Science Research, Population Council, New York, NY 10017, USA
2
Pardee Center for International Futures and Josef Korbel School of International Studies, University of Denver, Denver, CO 80208, USA
*
Author to whom correspondence should be addressed.
Sustainability 2020, 12(8), 3374; https://doi.org/10.3390/su12083374
Received: 23 March 2020 / Revised: 8 April 2020 / Accepted: 9 April 2020 / Published: 21 April 2020
Spatial population distribution is an important determinant of both drivers of regional environmental change and exposure and vulnerability to it. Spatial projections of population must account for changes in aggregate population, urbanization, and spatial patterns of development, while accounting for uncertainty in each. While an increasing number of projections exist, those carried out at relatively high resolution that account for subnational heterogeneity and can be tailored to represent alternative scenarios of future development are rare. We draw on state-level population projections for the US and a gravity-style spatial downscaling model to design and produce new spatial projections for the U.S. at 1 km resolution consistent with a subset of the Shared Socioeconomic Pathways (SSPs), scenarios of societal change widely used in integrated analyses of global and regional change. We find that the projections successfully capture intended alternative development patterns described in the SSPs, from sprawl to concentrated development and mixed outcomes. Our projected spatial patterns differ more strongly across scenarios than in existing projections, capturing a wider range of the relevant uncertainty introduced by the distinct scenarios. These projections provide an improved basis for integrated environmental analysis that considers uncertainty in demographic outcomes. View Full-Text
Keywords: population projection; spatial distribution of population; shared socioeconomic pathways; human-environment analysis; uncertainty population projection; spatial distribution of population; shared socioeconomic pathways; human-environment analysis; uncertainty
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MDPI and ACS Style

Zoraghein, H.; O’Neill, B.C. U.S. State-level Projections of the Spatial Distribution of Population Consistent with Shared Socioeconomic Pathways. Sustainability 2020, 12, 3374. https://doi.org/10.3390/su12083374

AMA Style

Zoraghein H, O’Neill BC. U.S. State-level Projections of the Spatial Distribution of Population Consistent with Shared Socioeconomic Pathways. Sustainability. 2020; 12(8):3374. https://doi.org/10.3390/su12083374

Chicago/Turabian Style

Zoraghein, Hamidreza; O’Neill, Brian C. 2020. "U.S. State-level Projections of the Spatial Distribution of Population Consistent with Shared Socioeconomic Pathways" Sustainability 12, no. 8: 3374. https://doi.org/10.3390/su12083374

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