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Title: The impact of urban irrigation on the temperature-carbon feedback in U.S. cities
Urban areas experience numerous environmental challenges, among which the anthropogenic emissions of heat and carbon are two major contributors, the former is responsible for the notorious urban heat effect, the latter longterm climate changes. Moreover, the exchange of heat and carbon dioxide are closely interlinked in the built environment, and can form positive feedback loops that accelerate the degradation of urban environmental quality. Among a handful countermeasures for heat and carbon mitigation, urban irrigation is believed to be effective in cooling, yet the understanding of its impact on the co-evolution of heat and carbon emission remains obscure. In this study, we conducted multiphysics urban climate modeling for all urban areas in the contiguous United States, and evaluated the irrigation-induced cooling and carbon mitigation. Furthermore, we assessed the impact of urban irrigation on the potential heat-carbon feedback loop, with their strength of coupling quantified by an advanced causal inference method using the convergent cross mapping algorithms. It is found that the impact of urban irrigation varies vastly in geographically different cities, with its local and non-local effect unraveling distinct pathways of heat-carbon feedback mechanism.  more » « less
Award ID(s):
2028868
NSF-PAR ID:
10476825
Author(s) / Creator(s):
; ;
Publisher / Repository:
Elsevier
Date Published:
Journal Name:
Journal of Environmental Management
Volume:
344
Issue:
C
ISSN:
0301-4797
Page Range / eLocation ID:
118452
Subject(s) / Keyword(s):
Causality Contiguous United States Convergent cross mapping Heat-carbon feedback Irrigation Urban microclimate
Format(s):
Medium: X
Sponsoring Org:
National Science Foundation
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