The present and future of North American rainwater harvesting. Haghiri, M., Meysami, S., & Asef, M. R. Hydrological Sciences Journal, 71(7):1399–1414, May, 2026. Publisher: Taylor & Francis _eprint: https://doi.org/10.1080/02626667.2026.2633302![The present and future of North American rainwater harvesting [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex North America faces increasing water scarcity driven by climate change and population growth. This study applies the analytical hierarchy process (AHP) integrated with GIS to assess rainwater harvesting (RWH) suitability across the continent for 2020 and 2100 under the CMIP6 SSP5–8.5 scenario. Eight biophysical factors – topography, slope, soil texture, soil moisture, precipitation, NDVI, drainage density, and land cover – were analyzed using satellite and national datasets at 1/24° resolution. Expert-based AHP pairwise comparisons were used to derive criterion weights, which were then integrated through GIS-based weighted overlay analysis. Results indicate that moderately and highly suitable areas dominate, expanding from 10.55 to 10.91 million km2 (45%) and 7.30 to 7.61 million km2 (32%), respectively, between 2020 and 2100. Very highly suitable zones remain below 5%. These findings reveal a subtle but positive continental trend in RWH feasibility, offering a robust geospatial foundation for climate-resilient water management and investment planning across North America.
@article{haghiri_present_2026,
title = {The present and future of {North} {American} rainwater harvesting},
volume = {71},
issn = {0262-6667},
url = {https://doi.org/10.1080/02626667.2026.2633302},
doi = {10.1080/02626667.2026.2633302},
abstract = {North America faces increasing water scarcity driven by climate change and population growth. This study applies the analytical hierarchy process (AHP) integrated with GIS to assess rainwater harvesting (RWH) suitability across the continent for 2020 and 2100 under the CMIP6 SSP5–8.5 scenario. Eight biophysical factors – topography, slope, soil texture, soil moisture, precipitation, NDVI, drainage density, and land cover – were analyzed using satellite and national datasets at 1/24° resolution. Expert-based AHP pairwise comparisons were used to derive criterion weights, which were then integrated through GIS-based weighted overlay analysis. Results indicate that moderately and highly suitable areas dominate, expanding from 10.55 to 10.91 million km2 (45\%) and 7.30 to 7.61 million km2 (32\%), respectively, between 2020 and 2100. Very highly suitable zones remain below 5\%. These findings reveal a subtle but positive continental trend in RWH feasibility, offering a robust geospatial foundation for climate-resilient water management and investment planning across North America.},
number = {7},
urldate = {2026-05-27},
journal = {Hydrological Sciences Journal},
author = {Haghiri, Mohammad and Meysami, Sahar and Asef, Mohammad Reza},
month = may,
year = {2026},
note = {Publisher: Taylor \& Francis
\_eprint: https://doi.org/10.1080/02626667.2026.2633302},
keywords = {NALCMS},
pages = {1399--1414},
}
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