Performance of the Global Forecast System's medium-range precipitation forecasts in the Niger river basin using multiple satellite-based products

Yue, Haowen; Gebremichael, Mekonnen; Nourani, Vahid

doi:https://doi.org/10.5194/hess-26-167-2022

Articles | Volume 26, issue 1

https://doi.org/10.5194/hess-26-167-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

https://doi.org/10.5194/hess-26-167-2022

© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.

Articles | Volume 26, issue 1

Research article

|

13 Jan 2022

Research article |

| 13 Jan 2022

Performance of the Global Forecast System's medium-range precipitation forecasts in the Niger river basin using multiple satellite-based products

Haowen Yue, Mekonnen Gebremichael, and Vahid Nourani

Data sets

NCEP GFS 0.25 Degree Global Forecast Grids Historical Archive National Centers for Environmental Prediction/National Weather Service/NOAA/U.S. Department of Commerce https://doi.org/10.5065/D65D8PWK

GPM IMERG Final Precipitation L3 1 day 0.1 degree x 0.1 degree V06 G. J. Huffman, E. F. Stocker, D. T. Bolvin, E. J. Nelkin, and J. Jackson https://doi.org/10.5067/GPM/IMERGDF/DAY/06

GPM IMERG Early Precipitation L3 1 day 0.1 degree x 0.1 degree V06 G. J. Huffman, E. F. Stocker, D. T. Bolvin, E. J. Nelkin, and J. Jackson https://doi.org/10.5067/GPM/IMERGDE/DAY/06

The climate hazards infrared precipitation with stations – a new environmental record for monitoring extremes (https://www.chc.ucsb.edu/data) C. Funk, P. Peterson, M. Landsfeld, D. Pedreros, J. Verdin, S. Shukla, G. Husak, J. Rowland, L. Harrison, A. Hoell, and J. Michaelsen https://doi.org/10.1038/sdata.2015.66

Short summary

The development of high-resolution global precipitation forecasts and the lack of reliable precipitation forecasts over Africa motivates this work to evaluate the precipitation forecasts from the Global Forecast System (GFS) over the Niger river basin in Africa. The GFS forecasts, at a 15 d accumulation timescale, have an acceptable performance; however, the forecasts are highly biased. It is recommended to apply bias correction to GFS forecasts before their application.