This paper reviews the state of science with respect to measurements and modeling of atmospheric deposition in complex terrain with a focus on the UK. No EPA data were included in this paper. This dataset is not publicly accessible because: The data creation occurred outside EPA, it belongs to Dr. Nicholas Cowan. It can be accessed through the following means: The data can be accessed by contacting the lead author of the paper, Dr. Nicholas Cowan at nicwan11@ceh.ac.uk. Format: Data can be accessed by contacting the lead author, Dr. Nicholas Cowan at nicwan11@ceh.ac.uk.

This dataset is associated with the following publication: Cowan, N., E. Nemitz, J. Walker, D. Fowler, J. Finnigan, H. Webster, P. Levy, M. Twigg, Y. Tang, N. Bachiller-Jareno, P. Trembath, R. Kinnersley, and C. Braban. Review of methods for assessing deposition of reactive nitrogen pollutants across complex terrain with focus on the UK. Environmental Science: Atmospheres. Royal Society of Chemistry, Cambridge, UK, (5): 829-851, (2022).