# Presentation: 502871

## WRF Data Ingest and Quality Control

**Patty Miller****Systems Development Division****Forecast Systems Laboratory****WRF Model Technical Review****Boulder, Colorado****June 19, 2001**

- John Cunning

## WRF Data Ingest and Quality Control	

- Data Handling and Archive Working Group (WG-12)

- NCEP:
- FSL:
- AFWA:
- IBM:
- OU:

- Dennis Keyser*- Lead
- Patty Miller*
- James Drake*
- Keith North
- Keith Brewster

- Operational Implementation Development Team

- NCEP:
- NCEP:
- NCAR:
- FSL:
- FSL:

- Geoff DiMego*
- Jeff Ator*
- Francois Van den Berghe
- Mike Barth*
- Barry Schwartz

- * Attended 26 Jan 2001 Meeting

- NCEP:
- NCEP:

- John Derber*
- Bill Collins*

- John Cunning

## WRF Data Ingest and Quality Control

- Initial Decision
- 	The first version of the WRF data assimilation
- 	system will use NCEP-produced prepared 	BUFR (PREPBUFR) files and BUFRLIB software

- Probable Default Reality
- 	Each organization will use the data formats and
- 	processing software specific to their facility

- John Cunning

## WRF Data Ingest and Quality Control

- Issues
- Portability
- Community Access
- Format Overlaps
- Ease of Use
- Versatility
- Solution
- A versatile easy-to-use data ingest system that supports multiple data formats and also provides data files to those who need them

- John Cunning

## Meteorological Assimilation Data Ingest System (MADIS)

- Access to real-time and archived data sets
- FORTRAN – callable Application Program Interface (API)
- Observational quality control

- Goal
- 	To provide the observational infrastructure
- 	necessary for data assimilation research
- 	and development

- Features

- John Cunning

## MADIS

- Radiosonde
- Automated Aircraft
- NOAA Profiler Network (NPN) Wind Profiler
- Global Positioning System (GPS)
- Maritime
- Meteorological Aviation Reports (METARs)
- Surface Aviation Observations (SAOs)
- NOAA Profiler Network (NPN) Surface
- Local Data Acquisition and Dissemination (LDAD) Mesonet

**Initial Data Sets**

- John Cunning

## MADIS

- Surface
- Validity, temporal consistency, internal consistency, spatial consistency
- Radiosonde
- Validity, wind shear, super-adiabatic lapse rate, hydrostatic
- Automated Aircraft
- Validity, internal consistency, temporal consistency, position consistency
- Profiler
- Validity, bird contamination, time-height continuity checks

**Quality Control Checks**

- John Cunning

## MADIS

**API Advantages**

- Invisible data formats
- Access to all observation types
- Multiple retrieval of similar observations
- Variable transformation
- Time windowing
- Domain specification
- Sounding generation
- QC information
- Utility routines
- Portability

- John Cunning

## MADIS

**Status**

- “Alpha” version released – summer of 2000
- “Beta” version nearing completion
- Supports both FSL and AWIPS-supplied data sets
- Data feeds to NCAR – RAP, NCEP, SDD/MD, and MesoWest
- API reviewed and tested by FSL data assimilators and NCEP central operations staff

- John Cunning

## MADIS

**Plans**

- Public release by FY2002
- Upgrade API to include NCEP data formats
- Include more data sets
- Work with Unidata and WRF data assimilators

- John Cunning