Alafia River Minimum Flows and Levels - Southwest Florida Water ...

Alafia River Minimum Flows and Levels - Southwest Florida Water ... Alafia River Minimum Flows and Levels - Southwest Florida Water ...

swfwmd.state.fl.us
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07.09.2014 Views

Table 1. Statistical comparisons (Wilcoxon rank-sum test) of annual rainfall i n 11 CWM basins during the two multi-decadal periods (1940 – 1969 and 1970 – 1999) discussed in the draft Alafia River CWM report. (Data source = SWFWMD) CWM Basin Mean Annual Rainfall (in.) 1940 – 1969 Mean Annual Rainfall (in.) 1970 – 1999 p-value 1940-1969 rainfall greater than 1970-1999 rainfall* p-value 1940-1969 rainfall greater or less than 1970-1999 rainfall** Springs Coast 56.4 55.0 0.29984 0.59968 Tampa Bay/Anclote River 53.7 52.0 0.27962 Withlacoochee River 55.0 53.4 0.23439 Hillsborough River 54.5 53.4 0.37529 Lake Wales Ridge 54.2 50.8 0.07683 0.15367 Manatee River 56. 1 52.5 0.09288 0.18577 Peace River 54.3 51.3 0.07472 0.14945 Alafia River 53.4 50.5 0.16276 0.32552 Southern Coastal 55.7 50.2 0.01757 0.03514 Myakka River 54.1 54.7 0.42669 a 0.55923 0.46879 0.75058 0.85338 Little Manatee River 55.6 51.2 0.04963 0.09926 * one-tailed test ** two-tailed test a testing for1970 – 1999 rainfall > 1940 – 1969 rainfall 9

Figure 1. Box-and-whisker plots of annual rainfall records from two time periods (1940 – 1969 and 1970 – 199 (Data source = SWFWMD). 90 80 70 60 50 40 30 10 9). An nual Rainfall (inc hes) Springs C o ast TB/An clote Withlacoochee Hill sborough Lake W Ridge Manatee Peace Alafia Sou th C oast M yakka Little Manatee SWFWMD CWM Basin

Figure 1. Box-<strong>and</strong>-whisker plots of annual rainfall records from two time periods (1940 – 1969 <strong>and</strong> 1970 – 199<br />

(Data source = SWFWMD).<br />

90<br />

80<br />

70<br />

60<br />

50<br />

40<br />

30<br />

10<br />

9).<br />

An<br />

nual Rainfall (inc hes)<br />

Springs C<br />

o<br />

ast<br />

TB/An clote<br />

Withlacoochee<br />

Hill sborough<br />

Lake W Ridge<br />

Manatee<br />

Peace<br />

<strong>Alafia</strong><br />

Sou th C oast<br />

M yakka<br />

Little Manatee<br />

SWFWMD CWM Basin

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