A five-step protocol for estimating forest cover and rate of change in the New York City watershed

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dc.authorid0000-0002-1481-2849en_US
dc.contributor.authorYavuz, Mehmet
dc.contributor.authorHall, Myrna H. P.
dc.date.accessioned2020-06-26T09:22:28Z
dc.date.available2020-06-26T09:22:28Z
dc.date.issued2018
dc.departmentAÇÜ, Orman Fakültesien_US
dc.description.abstractNew York City drinking water quality depends on retention of forest cover in its Catskill Mountains watersheds, yet multiple published analyses of temporally approximate satellite imagery derived no definitive nor agreed upon quantification of either forest cover in the watershed, or, more importantly, its rate of change over time. The objective of this work was to reduce uncertainty surrounding these estimates. We developed a five-pronged protocol that included (1) creation of a 1975-2002 time-series of land use/land cover (LULC) using Cross-Correlation Analysis (CCA); (2) a corrective post classification logic-based algorithm to correct for illogical transitions; (3) a probability-based stratified random sample accuracy assessment; (4) joint probability calculations of the "true" 2002 class proportions; and (5) verification of quantities of our LULC classification, and those of other researchers, versus the statistically derived true proportions. The estimated true percent of forest cover as of 2002 is 72%, far less than that reported by other studies, even with a net reforestation between 1975 and 2002. This protocol is an enhancement over previous LULC monitoring methods. Its more robust estimates of both historic trends and 2002 forest cover reveal information that is vitally important to monitoring and managing future water quality for the nation's largest city.
dc.description.sponsorshipNew York State Department of Environmental Conservation (NYSDEC), under the US Environmental Protection Agency Safe Drinking Water Act for NYC Watershed Protection, Edna Bailey Sussman Fund, McIntire-Stennis programen_US
dc.identifier.citationYavuz, M., & Hall, M. H. (2018). A five-step protocol for estimating forest cover and rate of change in the New York City watershed. Environmental monitoring and assessment, 190(8), doi: 10.1007/s10661-018-6855-4.en_US
dc.identifier.doi10.1007/s10661-018-6855-4
dc.identifier.issue8en_US
dc.identifier.scopusqualityQ2
dc.identifier.urihttps://hdl.handle.net/11494/2125
dc.identifier.volume190en_US
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.institutionauthorYavuz, Mehmet
dc.language.isoenen_US
dc.publisherSpringeren_US
dc.relation.ispartofEnvironmental Monitoring and Assessment
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectCross-correlation analysisen_US
dc.subjectChange detectionen_US
dc.subjectCatskill/Delaware watershedsen_US
dc.subjectWater qualityen_US
dc.titleA five-step protocol for estimating forest cover and rate of change in the New York City watersheden_US
dc.typeArticle

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