Projects

CSEMP assessment of copper in sediment at Celtic Deep

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean1-3.31-1.514.65 -9.31
linear2-3.31 0.245.66-11.312.007 10.1566
smooth (df = 2)3-1.44 4.815.72-11.440.123 10.7262
smooth (df = 3)4 0.0810.365.96-11.920.488 10.4849

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920183.0443.3300.285700.190831.4970.1625
last 20 years199920183.0443.3300.285700.190831.4970.1625

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC27.9427.00-0.03416 0.12075-0.2830.6087
ERL27.9434.00 0.19636 0.12075 1.6260.0661

 


Raw data with supporting information

Raw data with supporting information for assessment of  copper in sediment at Celtic Deep


Raw data with assessment

Raw data with assessment of  copper in sediment at Celtic Deep


Assessment plot

Assessment plot for  copper in sediment at Celtic Deep


Metals data

Metals data for assessment of  copper in sediment at Celtic Deep


Metals assessment

Metals assessment of  copper in sediment at Celtic Deep


Related pages

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