Kouakou Valentin Koffi

5 Questions 7 Answers 0 Followers

Questions related from Kouakou Valentin Koffi

How can a factor having a high correlation with DO, pH and Cl- can be interpreted in Principal Component Analysis of Hydrogeochemical data ?

I have done PCA of a physiochemical parameters obtained by groundwater samples analysis. A factor was found to have a good correlation with only Dissolved Oxygen (DO) 0.669, pH 0.516 and...

13 December 2017 568 4 View

In which case data need to be normalized before PCA, Cluster... analysis?

Dear all, I would like to know in which case data need to be normalized before PCA and cluster analysis. I saw some PCA analysis without any prior log-transformation and standardization and some...

22 June 2016 1,259 5 View

How one can explain a good correlation between Mg and HCO3- content in groundwater?

Dear Everybody, I found a good correlation between Magnesium (Mg) and both Bicarbonate Total Alkalinity in the one hand and a poor correlation between Calcium with these latter two. There is a...

05 February 2016 4,073 3 View

How one can convert Total Iron from mg/L into mEq/L?

I have Total iron content in water express in mg/L. I want to convert it into mEq/L in order to calculate it percentage. But I do not know how to do it because it not Fe(II) nor Fe(III) but total...

01 February 2016 159 13 View

Where can I get daily, monthly or annual runoff in raster or shape file format?

Dear Everybody, My idea is to do a simple GIS based water balance (P-ETP-Q) w. So I need Rainfall (P), Evapotranspiration (ETP) and Runoff (Q) data in GIS format. I already have the rainfall and...

31 July 2015 4,380 10 View