CSEMP assessment of copper in sediment at outer (Firth of Clyde)
Statistical analysis
Trend assessment
Analysis of variance
| | Df | AIC | AICc | Log lik | Deviance | Chisq | Chi df | Pr(>Chisq) |
| mean | 1 | 23.06 | 24.44 | -8.53 | 17.06 | | | |
| linear | 2 | 8.67 | 11.34 | -0.34 | 0.67 | 16.385 | 1 | <0.0001 |
| smooth (df = 2) | 3 | 3.45 | 8.00 | 3.28 | -6.55 | 7.223 | 1 | 0.0072 |
| smooth (df = 3) | 4 | 4.28 | 11.48 | 3.86 | -7.72 | 1.166 | 1 | 0.2803 |
| smooth (df = 4) | 5 | 5.70 | 16.59 | 4.15 | -8.30 | 0.583 | 1 | 0.4452 |
Change in log concentration
| | Year start | Year end | Fit start | Fit end | Change | Std error | t | Pr(>|t|) |
| overall | 2000 | 2016 | 3.857 | 2.687 | -1.1695 | 0.1857 | -6.297 | <0.0001 |
| last 20 years | 2000 | 2016 | 3.857 | 2.687 | -1.1695 | 0.1857 | -6.297 | <0.0001 |
Status assessment
| | Conc fitted | Conc ref | Log ratio | Std error | t | Pr(>t) |
| BAC | 14.69 | 27.00 | 0.6084 | 0.1573 | 3.867 | 0.0010 |
| ERL | 14.69 | 34.00 | 0.8389 | 0.1573 | 5.333 | <0.0001 |
Raw data with supporting information
__sdmn_cu_au.jpg "Raw data with supporting information for assessment of copper in sediment at outer (Firth of Clyde)")
Raw data with assessment
__sdmn_cu_da.jpg "Raw data with assessment of copper in sediment at outer (Firth of Clyde)")
Assessment plot
__sdmn_cu_as.jpg "Assessment plot for copper in sediment at outer (Firth of Clyde)")
Metals data
__sdmn_mtlsda.jpg "Metals data for assessment of copper in sediment at outer (Firth of Clyde)")
Metals assessment
__sdmn_mtlsas.jpg "Metals assessment of copper in sediment at outer (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
