Projects

CSEMP assessment of nickel in sediment at Celtic Deep

Statistical analysis

Trend assessment

Analysis of variance

 DfAICAICcLog likDevianceChisqChi dfPr(>Chisq)
mean112.2214.22-3.11 6.22
linear211.0715.07-1.54 3.073.148 10.0760
smooth (df = 2)313.0720.21-1.54 3.070.000 10.9899
smooth (df = 3)4 9.0121.01 1.50-2.996.064 10.0138

Change in log concentration

 Year startYear endFit startFit endChangeStd errortPr(>|t|)
overall199920163.4203.8290.40920.21451.9070.0856
last 20 years199920163.4203.8290.40920.21451.9070.0856

Status assessment

 Conc fittedConc refLog ratioStd errortPr(>t)
BAC46.0336.00-0.24574 0.13738-1.7890.9480

 


Raw data with supporting information

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


Raw data with assessment

Raw data with assessment of  nickel in sediment at Celtic Deep


Assessment plot

Assessment plot for  nickel in sediment at Celtic Deep


Metals data

Metals data for assessment of  nickel in sediment at Celtic Deep


Metals assessment

Metals assessment of  nickel 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