Estimating radar precipitation in cold climates: the role  of air temperature within a non-parametric framework

Sivasubramaniam, Kuganesan; Sharma, Ashish; Alfredsen, Knut

doi:https://doi.org/10.5194/hess-22-6533-2018

Articles | Volume 22, issue 12

https://doi.org/10.5194/hess-22-6533-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-22-6533-2018

© Author(s) 2018. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 22, issue 12

Research article

|

19 Dec 2018

Research article |

| 19 Dec 2018

Estimating radar precipitation in cold climates: the role of air temperature within a non-parametric framework

Kuganesan Sivasubramaniam, Ashish Sharma, and Knut Alfredsen

Supplement

https://doi.org/10.5194/hess-22-6533-2018-supplement

Data sets

THREDDS Data Server: remotesensingradaraccr Norwegian Meteorological Institute (met.no) http://thredds.met.no/thredds/catalog/remotesensingradaraccr/catalog.html

THREDDS Data Server: seNorge2/TEMP1h Norwegian Meteorological Institute (met.no) http://thredds.met.no/thredds/catalog/metusers/senorge2/seNorge2/archive/TEMP1h/catalog.html

THREDDS Data Server:KliNoGrid_16.12/FF-Nor Norwegian Meteorological Institute (met.no) http://thredds.met.no/thredds/catalog/metusers/klinogrid/KliNoGrid_16.12/FF-Nor/catalog.html

KNN, PIC, PMI and NPRED UNSW - University of New South Wales http://www.hydrology.unsw.edu.au/download/software/npred

Short summary

This study investigates the use of gauge precipitation and air temperature observations to ascertain radar precipitation in cold climates. The use of air temperature as an additional variable in a non-parametric model improved the estimation of radar precipitation significantly. Further, it was found that the temperature effects became insignificant when air temperature was above 10 °C. The findings from this study could be important for using radar precipitation for hydrological applications.