Overall spatial density of measurement points is 200 points km - 2. (nichols.edu)
There are also two diagrams that illustrate measurement points, please do not add for «good measure». (all-about-great-danes.com)
Each measurement location for 10, 20, 40 and 80 measurement point networks was specifically selected as the best representative of the average mass balance of the surrounding region. (nichols.edu)