Difference between revisions of "Metal concentrations in lake sediments"
From Testiwiki
(→Answer) |
(→2) Calculate metal concentration based on the concentration of a big lake) |
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temp <- temp[temp$Result == name, "ID"] | temp <- temp[temp$Result == name, "ID"] | ||
data <- data[data$ID == temp & data$Observation %in% metalli, ] | data <- data[data$ID == temp & data$Observation %in% metalli, ] | ||
− | conc <- make. | + | conc <- make.ovariable(data) |
conc <- conc * coeff.pH * coeff.landuse | conc <- conc * coeff.pH * coeff.landuse | ||
conc@sample | conc@sample |
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Question
What are metal concentrations in lake sediments? The focus is on Finland.
Answer
1) Calculate the metal concentration based on the mean value of the surrounding lakes (spherical area specified by radius)
2) Calculate metal concentration based on the concentration of a big lake
Rationale
Based on data from GTK, Finland.
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