Paleoprecipitation reconstruction in the Indus and Ganges basins by inverse modeling of tree-ring-based PDSI

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cg.authorship.typesCGIAR single centreen
cg.contributor.crpWater, Land and Ecosystems
cg.coverage.countryIndia
cg.coverage.countryNepal
cg.coverage.countryPakistan
cg.coverage.countryBangladesh
cg.coverage.countryBhutan
cg.coverage.countryMyanmar
cg.coverage.iso3166-alpha2IN
cg.coverage.iso3166-alpha2NP
cg.coverage.iso3166-alpha2PK
cg.coverage.iso3166-alpha2BD
cg.coverage.iso3166-alpha2BT
cg.coverage.iso3166-alpha2MM
cg.coverage.regionSouthern AsiaSouth-eastern Asia
cg.creator.identifierClaudia Ringler: 0000-0002-8266-0488
cg.identifier.doihttps://doi.org/10.1175/jhm-d-14-0172.1en
cg.identifier.projectIFPRI - Environment and Production Technology Division
cg.identifier.publicationRankA
cg.isijournalISI Journalen
cg.issn1525-755Xen
cg.issn1525-7541en
cg.issue3en
cg.journalJournal of Hydrometeorologyen
cg.reviewStatusPeer Reviewen
cg.volume16en
dc.contributor.authorRahman, D.en
dc.contributor.authorWang, Dingbaoen
dc.contributor.authorZhu, Tingjuen
dc.contributor.authorRingler, Claudiaen
dc.date.accessioned2024-08-01T02:50:18Zen
dc.date.available2024-08-01T02:50:18Zen
dc.identifier.urihttps://hdl.handle.net/10568/149948
dc.titlePaleoprecipitation reconstruction in the Indus and Ganges basins by inverse modeling of tree-ring-based PDSIen
dcterms.abstractThe South Asian monsoon is critically important for agricultural production in the region that includes the vast, fertile Indus and Ganges basins. However, the behavior of the South Asian monsoon is not well understood because of its complex nature, and existing instrumental climate records are insufficient for investigating the risks of the low-frequency but high-impact megadroughts that have historically occurred. This paper develops an inverse Palmer drought severity index (PDSI) model to retrieve paleoprecipitation for the region during the time period of 1300–1899, using available data of the water-holding capacity of soil, temperature, and reconstructed PDSI based on the tree-ring analysis of Cook et al.. Temperature data are reconstructed by a regression analysis utilizing an existing temperature reconstruction in an adjacent region and the Pacific decadal oscillation. Based on the retrieved paleoprecipitation, several megadroughts are identified during the reconstruction period. The drought frequency in the Indus basin is higher than that in the Ganges basin. The intensity, frequency, and spatial extent of severe droughts increased from 1300–1899 to 1900–2010. As a signal of climate change, increasing intensity and frequency of severe drought in the Indus and Ganges River basins needs adaptation strategies and drought preparedness measures to secure the food production in this area.en
dcterms.accessRightsLimited Access
dcterms.bibliographicCitationRahman, D.; Wang, Dingbao; Zhu, Tingju; and Ringler, Claudia. 2015. Paleoprecipitation reconstruction in the Indus and Ganges basins by inverse modeling of tree-ring-based PDSI. Journal of Hydrometeorology 16(June 2015): 1372-1386. https://doi.org/10.1175/jhm-d-14-0172.1en
dcterms.extentpp. 1372-1386en
dcterms.issued2015-02-25
dcterms.languageen
dcterms.licenseCopyrighted; all rights reserved
dcterms.publisherAmerican Meteorological Societyen
dcterms.replaceshttps://ebrary.ifpri.org/digital/collection/p15738coll5/id/4822en
dcterms.subjectfood productionen
dcterms.subjectpalaeoclimatologyen
dcterms.subjectwatershedsen
dcterms.subjectgrowth ringsen
dcterms.subjectclimate changeen
dcterms.typeJournal Article

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