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Table 2 Statistical analysis of rainfall (1971–1990)

From: The outlook of Ethiopian long rain season from the global circulation model

Model

Clim (mm)

SD

Cv (%)

Corr

Rmse

Bias

NNRPa

501.7023

40.33089

8.038809071

   

Bccr

592.1023

54.06119

9.130380004

0.21042016

112.8483

90.4

Cccma

546.9452

44.3595

8.11041033

0.13351548

62.14697

45.2429

Echam

356.2808

53.90224

15.12914533

0.00429265

160.1898

−145.4215

Giss

416.9231

22.73914

5.454036967

−0.07013787

97.26162

−84.7792

Inmcm

282.4245

49.81025

17.63666042

−0.14229288

229.7001

−219.2778

Ipsl

182.0708

36.48957

20.04141795

−0.08403028

324.6071

−319.6315

  1. Clim climatology (time series average value of rainfall), Sd standard deviation, cv coefficient of variation, corr correlation
  2. aNNRP Observed rainfall recorded mean values from satellite, ground based and observation above the top of the stratosphere (reanalysis)