CSEMP assessment of copper in sediment at middle (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | -10.63 | -8.06 | 8.32 | -16.63 | | | |
| linear | 2 | -10.39 | -5.05 | 9.19 | -18.39 | 1.752 | 1 | 0.1856 |
| smooth (df = 2) | 3 | -20.71 | -10.71 | 15.35 | -30.71 | 12.321 | 1 | 0.0004 |
| smooth (df = 3) | 4 | -19.04 | -1.04 | 15.52 | -31.04 | 0.331 | 1 | 0.5650 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2006 | 2016 | 2.8945 | 2.7407 | -0.15384 | 0.11845 | -1.299 | 0.2352 |
| last 20 years | 2006 | 2016 | 2.8945 | 2.7407 | -0.15384 | 0.11845 | -1.299 | 0.2352 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 15.5 | 27.0 | 0.5551 | 0.0641 | 8.667 | <0.0001 |
| ERL | 15.5 | 34.0 | 0.7857 | 0.0641 | 12.266 | <0.0001 |
Raw data with supporting information
__sdmn_cu_au.jpg "Raw data with supporting information for assessment of copper in sediment at middle (Firth of Clyde)")
Raw data with assessment
__sdmn_cu_da.jpg "Raw data with assessment of copper in sediment at middle (Firth of Clyde)")
Assessment plot
__sdmn_cu_as.jpg "Assessment plot for copper in sediment at middle (Firth of Clyde)")
Metals data
__sdmn_mtlsda.jpg "Metals data for assessment of copper in sediment at middle (Firth of Clyde)")
Metals assessment
__sdmn_mtlsas.jpg "Metals assessment of copper in sediment at middle (Firth of Clyde)")
Related pages
- Clean Seas Environment Monitoring Programme (CSEMP) accessment viewer tool
- Assessment methodology for metals in sediment
- Accessment criteria for metals in sediment
