This READEME file was generated on [2022-07-19] by [Professor Charles Jones] GENERAL INFORMATION Title of Dataset: Weather Research and Forecasting (WRF) Model Downscaling over the Santa Barbara County (WDSBC) Author/Principal Investigator Information Name: Charles Jones ORCID: 0000-0003-4808-6977 Institution: University of California Santa Barbara Address: Dept. of Geography, University of California Santa Barbara, Santa Barbara CA 93106 Email: cjones@eri.ucsb.edu Date of data collection: 1987-07-01 - 2019-06-30 Geographic location of data collection: Southern California covering Santa Barbara County, California, USA. Latitude range: 33.5087N - 35.5027N Longitude range: 118.585W - 121.254W Information about funding sources that supported the collection of the data: WRF Downscaling was supported by the National Science Foundation Awards: Integrative and Collaborative Education and Research, ICER 1664173 SHARING/ACCESS INFORMATION Licenses/restrictions placed on the data: Users are free to use the data Recommended citation for this dataset: Jones, Charles; Carvalho, Leila M.V.; Duine, Gert-Jan; Zigner, Katelyn (2022), Climatology of Sundowner Winds in Coastal Santa Barbara, California, Based on 30 yr High Resolution WRF Downscaling, Dryad, Dataset, https://doi.org/10.25349/D9S90S DATA & FILE OVERVIEW Files in this repository contain surface variables from Weather Research and Forecasting (WRF) downscaling simulations during a series of Sundowner wind events. The list of events is: Painted 1990: 26-Jun, 27-Jun, 28-Jun Tea 2008: 13-Nov, 14-Nov 2004: 24-Apr, 27-Apr, 28-Apr, 2-May, 3-May Jesusita 2009: 5-May, 6-May, 7-May, 8-May, Sherpa 2016: 15-Jun, 16-Jun Whittier 2017: 6-Jul, 8-Jul 2017: 11-Mar, 12-Mar These events are discussed in the Jones et al. 2021 paper. Each file contains hourly gridded (1km) values: -- terrain Height -- specific humidity at 2 m -- air temperature at 2 m -- potential temperature at 2 m -- surface pressure -- zonal winds at 10 m -- meridional winds at 10 m -- accumulated fog deposition -- deposition fog velocity -- accumulated total grid scale precipitation -- cloud fraction -- instantaneous upwelling longwave -- instantaneous downwelling longwave -- instantaneous upwelling shortwave -- instantaneous downwelling shortwave -- u* similarity theory -- upward moisture flux -- latent heat flux at the surface -- ground heat flux -- PBL height. Data are in netcdf format and follow the WRF conventions (more information: https://www2.mmm.ucar.edu/wrf/users) File List: Additional related data collected that was not included in the current data package: Users interested in accessing the entire 32-year WRF downscaling dataset, please contact: Charles Jones at cjones@eri.ucsb.edu METHODOLOGICAL INFORMATION WRF model version 4.0.1 was used to produce a 32 yr high-resolution downscaling climatology over Santa Barbara County. WRF was configured with 4 two-way nested grids with 27 km, 9 km, 3 km and 1 km horizontal rid spacings. WRF was configured with 55 vertical levels and model top at 50 hPa. The configuration used numerical parameterizations for microphysics (Single moment 6-class, Hong and Lim, 2006), long-wave and short-wave radiation transfer (RRTMG, Iacono et al., 2008), Noah multi-parameterization options (Noah-MP) (Niu et al., 2011), surface layer physics and planetary boundary layer (MYNN, Nakanishi and Niino, 2009; Olson et al., 2019). Initial and boundary conditions were obtained from the European Centre for Medium-Range Weather Forecasts Interim Reanalysis (ERA Interim) (Dee et al., 2011). WRF was initialized on 1 July 00UTC of a given year and integrated continuously until 1 September 00UTC of the following year and repeated for 32 yr. Sea surface temperature (SST) from ERA Interim was updated every 6 h. Grid nudging was applied in all model levels of the 27 km grid (nudging coefficient 0.0003 s−1) so that WRF was forced to follow large-scale features from the reanalysis. Additional details are available in Jones et al. 2021: https://www.sciencedirect.com/science/article/pii/S0169809520312424?via%3Dihub