Title: SBC diagnosis along the particle size distribution 
Author(s): 
	Heather Reeves
		ORCID: 0000-0003-1843-2218
		Email: heather.reeves@noaa.gov
		Organization: National Severe Storms Laboratory (NSSL) and Cooperative Institute for Mesoscale Meteorological Studies (CIMMS)
		120 David L. Boren Blvd, Norman, OK 73072
		Phone: 405-325-6287 (email strongly preferred)

1.0 Data Set Overview
	Introduction: Vertical profiles of the hydrometeor phase diagnosis along the particle size distribution. 
	Time period covered: 2019/02/06/00:00-2019/03/07/23:50
	Physical location: Commercial airports in ICICLE field campaign area (-96 deg Lon to -82 deg Lon, 36 deg Lat to 48 deg Lat)
	Data source: NSSL/CIMMS experimental product that is being fielded for inclusion in MRMS. 

2.0 Instrument Description: N/A

3.0 Data Collection and Processing
	Data collection: N/A

4.0 Data Format
	Data file structure: NetCDF4
	Data format/layout: 
                Separate NetCDF4 file for each airport/time.  Only airports with ASOS observations of precip in 
                hour preceding analysis are included.  Each file includes:
                sfc_class: The diagnosed phase at the surface
                VPtype: Vertical profile of phase across the PSD (a 2D grid)
                dw: the PSD
                H: the height levels from the surface to the top of the precipitation-generation layer (ptop; m)
                TW: wetbulb temperature from surface to ptop (K)
                PPA: pressure (Pa) from surface to ptop
                TK: temperature from surface to ptop (K)
                DTK: dewpoint from surface to ptop (K)

                Only airports in the following domain are included: -96 to -82 W long and 36 to 48 N lat	
	Parameters: listed above 
	Description of flags, codes used in data, and definitions: Units provided above.  Numerical codes for phase are as follows:
   		1.5==RA
                2.5==FZDZ
                3.5==FZRA
		4.5==PL
		5.5==FZDZPL
		6.5==FZRAPL
		7.5==SN
		8.5==RASN
		9.5==RAPL
		10.5==DZ
		11.5==DZSN
		12.5==DZPL

5.0 Data Remarks
	PI'S assessment of data: This is an experimental product.  This data is the first iteration of such a product and may contain some artificacts/oddities. The domain is different from the other MRMS products and only covers the area of the ICILE field campaign (as described above). This version of the SBC uses a different method to assign ptop that the horizontal diagnoses (provided separately) and therefore may not agree with that analysis. 
	Missing data periods: Necessary MRMS inputs for this data are not available prior to 0000 UTC 6 February 2019. 
	Software compatibility:

6.0 References: NA