2019/10/10 This directory contains fortran code and lookup tables for calculating nucleation rate for the following four nucleation mechanims: 1. H2SO4-H2O binary homogenous nucleation (BHN), 2. H2SO4-H2O-NH3 ternary homogeneous nucleation (THN), 3. H2SO4-H2O-Ions binary ion-mediated nucleation (BIMN), and 4. H2SO4-H2O-NH3-Ions ternary ion-mediated nucleation (TIMN) References: 1. Yu, F., Nadykto, A. B., Herb, J., Luo, G., Nazarenko, K. M., and Uvarova, L. A.: H2SO4-H2O-NH3 ternary ion-mediated nucleation (BHN): Kinetic-based model and comparison with CLOUD measurements, Atmos. Chem. Phys.,18, 17451-17474, https://doi.org/10.5194/acp-18-17451-2018, 2018. 2. Yu, F., Nadykto, A. B., Herb, and J., Luo, H2SO4-H2O binary and H2SO4-H2O-NH3 ternary homogeneous and ion-mediated nucleation: Lookup tables, in review, GMD, 2019. Files included in the package: YBHN/: BHN code and lookup table YTHN/: THN code and lookup table YBIMN/: BIMN code and lookup table YTIMN/: TIMN code and lookup table nucl_XXX_mod.f (XXX = BHN, THN, BIMN, TIMN): Stand alone module for XXX rate calculation. mainXXX.f: Test program to demonstrate how the lookup table is used. inputXXX.dat: Example input data for testing the code and lookup table. outputXXX.dat: Example output after running the test code Use "f95 *.f" to compile and get executable program a.out To run the test program: >a.out For your reference, output of running the program on my workstation has been saved to outputXXX.dat. I hope that the comments provided in the subroutines make the code self-explanatory. Contact me if you have questions. Enjoy and have fun! Fangqun Yu SUNY-Albany (fyu@albany.edu)