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dc.contributor.authorOsborne, Joe M.
dc.contributor.authorLambert, F. Hugo
dc.contributor.authorGroenendijk, Margriet
dc.contributor.authorHarper, Anna B.
dc.contributor.authorKoven, Charles D.
dc.contributor.authorPoulter, Benjamin
dc.contributor.authorPugh, Thomas A. M.
dc.contributor.authorSitch, Stephen
dc.contributor.authorStocker, Benjamin D.
dc.contributor.authorWiltshire, Andy
dc.contributor.authorZaehie, Sonke
dc.date.accessioned2016-05-03T18:10:17Z
dc.date.available2016-05-03T18:10:17Z
dc.date.issued2015-12
dc.identifier.citationOsborne, Joe M, F. Hugo Lambert, Margriet Groenendijk, Anna B. Harper, Charles D. Koven, Benjamin Poulter, Thomas A. M. Pugh, Stephen Sitch, Benjamin D. Stocker, Andy Wiltshire, and Sonke Zaehie. "Reconciling Precipitation with Runoff: Observed Hydrological Change in the Midlatitudes." Journal of Hydrometeorology 17, no. 3 (December 2015). DOI: 10.1175/JHM-D-15-0055.1.en_US
dc.identifier.issn1525-7541
dc.identifier.urihttps://scholarworks.montana.edu/xmlui/handle/1/9741
dc.description.abstractCentury-long observed gridded land precipitation datasets are a cornerstone of hydrometeorological research. But recent work has suggested that observed Northern Hemisphere midlatitude (NHML) land mean precipitation does not show evidence of an expected negative response to mid-twentieth-century aerosol forcing. Utilizing observed river discharges, the observed runoff is calculated and compared with observed land precipitation. The results show a near-zero twentieth-century trend in observed NHML land mean runoff, in contrast to the significant positive trend in observed NHML land mean precipitation. However, precipitation and runoff share common interannual and decadal variability. An obvious split, or breakpoint, is found in the NHML land mean runoff–precipitation relationship in the 1930s. Using runoff simulated by six land surface models (LSMs), which are driven by the observed precipitation dataset, such breakpoints are absent. These findings support previous hypotheses that inhomogeneities exist in the early-twentieth-century NHML land mean precipitation record. Adjusting the observed precipitation record according to the observed runoff record largely accounts for the departure of the observed precipitation response from that predicted given the real-world aerosol forcing estimate, more than halving the discrepancy from about 6 to around 2 W m−2. Consideration of complementary observed runoff adds support to the suggestion that NHML-wide early-twentieth-century precipitation observations are unsuitable for climate change studies. The agreement between precipitation and runoff over Europe, however, is excellent, supporting the use of whole-twentieth-century observed precipitation datasets here.en_US
dc.description.sponsorshipEPSRC studentship EP/J500422/1; European Commission’s 7th Framework Programme, under Grant Agreement 282672 (EMBRACE) and 603542 (LUC4C)en_US
dc.rightsCC BY 4.0 You are free to: Share — copy and redistribute the material in any medium or format Adapt — remix, transform, and build upon the material for any purpose, even commercially. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.en_US
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/legalcodeen_US
dc.titleReconciling Precipitation with Runoff: Observed Hydrological Change in the Midlatitudesen_US
dc.typeArticleen_US
mus.citation.extentfirstpage2403en_US
mus.citation.extentlastpage2420en_US
mus.citation.issue3en_US
mus.citation.journaltitleJournal of Hydrometeorologyen_US
mus.citation.volume17en_US
mus.identifier.categoryLife Sciences & Earth Sciencesen_US
mus.identifier.doi10.1175/JHM-D-15-0055en_US
mus.relation.collegeCollege of Letters & Scienceen_US
mus.relation.departmentEcology.en_US
mus.relation.universityMontana State University - Bozemanen_US
mus.data.thumbpage4en_US
mus.contributor.orcidPoulter, Benjamin|0000-0002-9493-8600en_US


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CC BY 4.0
You are free to:
Share — copy and redistribute the material in any medium or format
Adapt — remix, transform, and build upon the material
for any purpose, even commercially.
The licensor cannot revoke these freedoms as long as you follow the license terms.
Under the following terms:
Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
Except where otherwise noted, this item's license is described as CC BY 4.0 You are free to: Share — copy and redistribute the material in any medium or format Adapt — remix, transform, and build upon the material for any purpose, even commercially. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.

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