The Global Change Master Directory is a source of a huge amount of earth science data. They now catalog DODS URLs for the datasets that have them. You can search on "DODS" right from the main page to find many of these datasets. Try that search, then click on one of the data set names that returns, and look at the bottom of the resulting Set Description" page, under the heading "Related URL."
If you make that search, check the list for the Reynolds data from chapter 1; it should be there.