Sahel Precipitation Index

Sahel Precipitation Index (20-10N, 20W-10E)

Correlation of Sahel Rain Index with ERA5 precipitation for May-Sep

WRIT TS

Description and Specifications

Description

The averaging region is based on the rotated principal component analysis of average June through September African rainfall presented in Janowiak (1988, J. Climate, 1, 240-255). Stations within 20-8N, 20W-10E are obtained from the National Center for Atmospheric Research World Monthly Surface Station Climatology (WMSSC), and 14 retained which had complete or almost complete records for 1950-93.

Temporal Coverage

Monthly values: 1901 to 2017
Update Status: Static

Data Notes

Units: cm/mn

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Time-series List

Sahel Precipitation Index : Standard PSL Format, CSV, and NetCDF (What is standard format?)

Source, citation and related Information.

Related Time-series

N/A

Links

N/A

Original Source

http://research.jisao.washington.edu/data/sahel/

Time-series source dataset(s)

GPCC (v7 full analysis) until 2013 and first guess after.

Citation

doi:10.6069/H5MW2F2Q

References

Becker, A., P. Finger, A. Meyer-Christoffer, B. Rudolf, K. Schamm, U. Schneider, and M. Ziese, 2013: A description of the global land-surface precipitation data products of the Global Precipitation Climatology Centre with sample applications including centennial (trend) analysis from 1901-present. Earth Sys. Sci. Data, doi:10.5194/essd-5-71-2013.
Janowiak, J. E., 1988: An investigation of interannual rainfall variability in Africa. J. Climate, 1, 240-255.