Uncertainty Resulting from Multiple Data Usage in Statistical Downscaling

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dc.contributor.author Kannan, S.
dc.contributor.author Ghosh, Subimal
dc.contributor.author Mishra, Vimal
dc.contributor.author Salvi, Kaustubh
dc.date.accessioned 2014-06-25T13:06:31Z
dc.date.available 2014-06-25T13:06:31Z
dc.date.issued 2014-06
dc.identifier.citation Kannan, S; Ghosh, Subimal; Mishra, Vimal and Salvi, Kaustubh, "Uncertainty Resulting from Multiple Data Usage in Statistical Downscaling", Geophysical Research Letters, DOI: 10.1002/2014GL060089, Jun. 2014. en_US
dc.identifier.issn 0094-8276
dc.identifier.uri http://dx.doi.org/10.1002/2014GL060089
dc.identifier.uri https://repository.iitgn.ac.in/handle/123456789/1312
dc.description.abstract Statistical downscaling (SD), used for regional climate projections with coarse resolution general circulation model (GCM) outputs, is characterized by uncertainties resulting from multiple models. Here we observe another source of uncertainty resulting from the use of multiple observed and reanalysis data products in model calibration. In the training of SD, for Indian Summer Monsoon Rainfall (ISMR), we use two reanalysis data as predictors and three gridded data products for ISMR from different sources. We observe that the uncertainty resulting from six possible training options is comparable to that resulting from multiple GCMs. Though the original GCM simulations project spatially uniform increasing change of ISMR, at the end of 21st century, the same is not obtained with SD, which projects spatially heterogeneous and mixed changes of ISMR. This is due to the differences in statistical relationship between rainfall and predictors in GCM simulations and observed/reanalysis data, and SD considers the latter. en_US
dc.description.statementofresponsibility by S. Kannan, Subimal Ghosh, Vimal Mishra and Kaustubh Salvi
dc.format.extent vol. 41, no. 11
dc.language.iso en en_US
dc.publisher Wiley en_US
dc.subject Climate change en_US
dc.subject Indian monsoon en_US
dc.subject Statistical downscaling en_US
dc.subject Uncertainty en_US
dc.title Uncertainty Resulting from Multiple Data Usage in Statistical Downscaling en_US
dc.type Article en_US
dc.relation.journal Geophysical Research Letters


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