This Directory:
See README_okubo-weiss

Tish_files:
dye data - surface only, see Arrigo Files
freshwater1.mat - freshwater fraction surface layer
freshwaterdepth.mat - equivalent depth of freshwater mean. It's an integral of the amount of freshwater at a given location. 
lab5_coastline.mat
mld_noriver.mat - Mixed layer depth - no 'river' = no runoff
mld_river.mat
sst_noriver.mat - SST no runoff
sst_river.mat
surfacelayerdepth.mat

Arrigo_files:
all30layerdepth.mat - layer thickness 
freshwaterdepth.mat - freshwater depth
newdye files:
dye data 4D files 
The dye release experiment is designed to release the tracer (with the value of 1) at the pour point proportional to the amount of the runoff from that point. We separated the dyee and dyew for the east coast vs. west coast of Greenland, however, there are also some runoff in the middle as well at the southern area of Greenland. So, ideally the west plus east are not the total volume of the freshwater, it should also includes the middle ones (15 rivers, attached figure shows where those rivers located). So I don't think you can calculate the contribution of east vs west from the total freshwater fraction.