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Droughts in Pakistan: a spatiotemporal variability analysis using the Standardized Precipitation Index

Xie, Hua / Ringler, Claudia / Zhu, Tingju / Waqas, Ahmad

We investigated the spatiotemporal variability of drought incidence in Pakistan during 1960–2007 by calculating Standardized Precipitation Index fields for 3-, 6- and 12-month scales using gridded precipitation data. Principal component analysis revealed that droughts are wide-spread and often occur simultaneously over large areas. Furthermore, spectral analysis identified a 16-year drought recurrence period. Three such drought-intensive periods were identified: the late 1960s to early 1970s; the middle 1980s; and the late 1990s to early 2000s. Hence, drought patterns need to be integrated into long-term water planning as well as emergency preparedness.

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Droughts in Pakistan: a spatiotemporal variability analysis using the Standardized Precipitation Index

Xie, Hua / Ringler, Claudia / Zhu, Tingju / Waqas, Ahmad

We investigated the spatiotemporal variability of drought incidence in Pakistan during 1960–2007 by calculating Standardized Precipitation Index fields for 3-, 6- and 12-month scales using gridded precipitation data. Principal component analysis revealed that droughts are wide-spread and often occur simultaneously over large areas. Furthermore, spectral analysis identified a 16-year drought recurrence period. Three such drought-intensive periods were identified: the late 1960s to early 1970s; the middle 1980s; and the late 1990s to early 2000s. Hence, drought patterns need to be integrated into long-term water planning as well as emergency preparedness.

Droughts in Pakistan: a spatiotemporal variability analysis using the Standardized Precipitation Index

Xie, Hua / Ringler, Claudia / Zhu, Tingju / Waqas, Ahmad

We investigated the spatiotemporal variability of drought incidence in Pakistan during 1960–2007 by calculating Standardized Precipitation Index fields for 3-, 6- and 12-month scales using gridded precipitation data. Principal component analysis revealed that droughts are wide-spread and often occur simultaneously over large areas. Furthermore, spectral analysis identified a 16-year drought recurrence period. Three such drought-intensive periods were identified: the late 1960s to early 1970s; the middle 1980s; and the late 1990s to early 2000s. Hence, drought patterns need to be integrated into long-term water planning as well as emergency preparedness.

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Titel:

Droughts in Pakistan: a spatiotemporal variability analysis using the Standardized Precipitation Index

Beteiligte:

Xie, Hua (Autor:in) / Ringler, Claudia (Autor:in) / Zhu, Tingju (Autor:in) / Waqas, Ahmad (Autor:in)

Erschienen in:

Water International ; 38 ; 620-631

Erscheinungsdatum:

01.09.2013

Format / Umfang:

12 pages

ISSN:

0250-8060 , 1941-1707

DOI:

https://doi.org/10.1080/02508060.2013.827889

Medientyp:

Aufsatz (Zeitschrift)

Format:

Elektronische Ressource

Sprache:

Englisch

Schlagwörter:

drought , Pakistan , Standardized Precipitation Index , principal component analysis , variability

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