Kouakou Valentin Koffi

6 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 573 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 1,263 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 4,075 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 162 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 4,383 10 View

How can infiltration from river water body (flooded area) be estimated without using the water balance method?

I want to estimate infiltration from water body in flooded area independantly from the other terms of the water balance equation. Only data for water level and discharge of the river are available.

06 March 2015 7,498 2 View