Projects

CSEMP assessment of CB180 in sediment at Fladen Ground

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean143.8947.49-18.9437.89
linear241.7149.71-16.8533.714.178 10.0410
smooth (df = 2)343.6560.32-16.8233.650.060 10.8064

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall20052013-2.767-3.668-0.9009 0.3939-2.2870.0622
last 20 years20052013-2.767-3.668-0.9009 0.3939-2.2870.0622

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC 0.026 0.1001.3650.248 5.4930.0008
EAC 0.02612.0006.1520.24824.761<0.0001

 


Related pages

  • Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
  • Assessment methodology for in sediment
  • Accessment criteria for in sediment