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. 2011 Sep 15;6(9):e24524. doi: 10.1371/journal.pone.0024524

Table 1. Vogelsang Trend Tests for Unadjusted CRU Temperature Series.

tDAN for a test of size:
Slope Inline graphic Change in temp. 1% 2.5% 5% 10% J
CRU TS 1.0 1970-1995
Gikongoro 0.0009 0.27 K 1.0292 1.1722 1.2849 1.3770 0.1940
Kabale 0.0008 0.24 K 0.9372 1.0566 1.1498 1.2255 0.1787
Kericho 0.0007 0.21 K 0.9854 1.0038 1.0169 1.0270 0.0276
Muhanga 0.0009 0.27 K 1.3586 1.4364 1.4939 1.5388 0.0830
CRU TS 2.1 1966-1996
Gikongoro 0.0024 1.33 K 6.6471 6.7271 6.7841 6.8275 0.0124
Kabale 0.0022 1.26 K 6.2383 6.3129 6.3661 6.4065 0.0142
Kericho 0.0020 1.10 K 4.5672 4.6241 4.6647 4.6955 0.0141
Muhanga 0.0024 1.32 K 6.9302 6.9798 7.0150 7.0417 0.0084
East Africa 0.0024 1.33 K 6.3690 6.3906 6.4058 6.4174 0.0047
CRU TS 2.1 1950-2002
Gikongoro 0.0014 0.88 K 5.2578 5.5488 5.7635 5.9311 0.0801
Kabale 0.0014 0.91 K 5.6928 5.9445 6.1286 6.2713 0.0644
Kericho 0.0009 0.58 K 2.8030 2.9514 3.0607 3.1458 0.0764
Muhanga 0.0014 0.87 K 5.4726 5.6860 5.8415 5.9616 0.0568
East Africa 0.0014 0.86 K 5.1451 5.3455 5.4913 5.6041 0.0558
CRU TS 2.1 1970-1995
Gikongoro 0.0030 1.63 K 7.8737 7.9935 8.0791 8.1442 0.0207
Kabale 0.0027 1.51 K 7.2907 7.3972 7.4733 7.5312 0.0188
Kericho 0.0021 1.14 K 4.4185 4.4565 4.4835 4.5039 0.0127
Muhanga 0.0030 1.64 K 8.2203 8.3123 8.3778 8.4276 0.0147
East Africa 0.0024 1.33 K 5.8016 5.8580 5.8981 5.9285 0.0144
CRU TS 3.0 1970-1995
Gikongoro 0.0011 0.38 K 2.3754 2.4673 2.5341 2.5858 0.0257
Kabale 0.0008 0.30 K 1.8219 1.8855 1.9317 1.9673 0.0218
Kericho 0.0024 0.87 K 3.9763 4.1289 4.2401 4.3260 0.0309
Muhanga 0.0013 0.46 K 3.0381 3.1153 3.1709 3.2135 0.0171
East Africa 0.0015 0.53 K 3.2572 3.3316 3.3849 3.4258 0.0135
CRU TS 3.0 1966-1995
Gikongoro 0.0009 0.31 K 2.4917 2.5957 2.6716 2.7304 0.0202
Kabale 0.0007 0.25 K 1.9526 2.0271 2.0813 2.1232 0.0163
Kericho 0.0021 0.76 K 4.4329 4.6279 4.7704 4.8809 0.0414
Muhanga 0.0011 0.38 K 3.2002 3.2849 3.3459 3.3928 0.0143
East Africa 0.0016 0.56 K 4.2935 4.4178 4.5076 4.5765 0.0105
CRU TS 3.0 1966-2006
Gikongoro 0.0029 1.41 K 3.3042 4.0075 4.5913 5.0877 0.2146
Kabale 0.0030 1.44 K 3.1192 3.8203 4.4072 4.9092 0.2361
Kericho 0.0035 1.69 K 7.5176 7.9318 8.2374 8.4758 0.0653
Muhanga 0.0029 1.38 K 4.4023 4.9657 5.4056 5.7633 0.1300
East Africa 0.0032 1.54 K 6.6389 7.1417 7.5188 7.8166 0.0842

Note: Significant t-statistics are marked in bold. tDAN test is for significance of the trend and J is a test for a unit root in the residuals of the trend regression. The change in temperature is the trend coefficient multiplied by the length of the sample period.