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Operational Data Acquisition & Archiving System

The Marine Modeling and Analysis Programs (MMAP) branch of the Coast Survey Development Laboratory has developed a centralized site for surface meteorological, ocean, and river observations as well as National Weather Service (NWS) model forecast guidance called the Operational Data Acquisition and Archiving System (ODAAS).

The purpose of ODAAS is to provide a centralized, one-stop site for near-real-time observations and NWS forecast models. NOS experimental and operational estuarine and coastal forecast models use this data for development, testing, and operations. ODAAS is considered one component of NOS' Coastal Ocean Modeling Framework (COMF).

Requirements
MMAP develops and evaluates nowcast/forecast modeling systems for estuaries, the Great Lakes, and the coastal ocean. Further information can be found at the Water Level and Current Forecast Guidance page.   These modeling systems predict water levels, currents, salinity, temperature, and other oceanographic variables every day for the next several days to follow. In order for these coastal forecast systems to produce accurate, high-resolution nowcasts and short-term forecasts of oceanographic conditions, two types of real-time information are needed for forcing:

1) surface oceanographic observations and model forecast guidance, and

2) surface meteorological observations and model forecast guidance.

For some water bodies, additional real-time information on river discharge is also needed.

Description
ODAAS is a software system composed of shell scripts, Perl, FORTRAN and C programs. The observational data acquired by ODAAS consist of atmospheric and oceanographic in-situ observations. The forecast guidance includes analyses and forecast guidance from atmospheric and oceanographic forecast models operated by the NWS' National Centers for Environmental Prediction (NCEP) in Camp Springs, MD. ODAAS also acquires surface weather and SST observations from NCEP, as well as Great Lakes observations from the Great Lakes Environmental Research Laboratory (GLERL). ODAAS scripts and programs use the File Transfer Protocol (FTP) over the NOAA Campus Telecommunication Network to acquire information from NCEP and GLERL.

ODAAS is located at NOS' Center for Operational Oceanographic Products and Services (CO-OPS) in Silver Spring, MD. It is monitored 24 x 7 by personnel in CO-OPS' Continuously Operating Real-Time Monitoring System (CORMS). ODAAS is maintained by personnel from CO-OPS' model forecast operations group in collaboration with personnel from MMAP.

In addition, an experimental version of ODAAS is run by NOS' MMAP to acquire and test the acquisition and processing of new observational and forecast guidance information. ODAAS at MMAP also uses a mySQL database for archiving river discharge observations and forecast guidance. The experimental version of ODAAS also serves as a backup for CO-OPS' ODAAS. However, this experimental/developmental version is only routinely monitored by MMAP personnel during regular business hours on weekdays.

Content
ODAAS contains both digital (text or binary [GRIB, netCDF]) files of surface meteorological, oceanographic, and river observations, and of forecast model guidance. The types of observations and guidance depend on whether it is ODAAS at CO-OPS or at MMAP.

ODAAS @ CO-OPS
ODAAS at CO-OPS obtains from NCEP the following products:
1) Surface meteorological and SST observations from land, coastal, and offshore platforms for coastal areas and waters
2) NOAA/GLERL Great Lakes Surface Environmental Surface Water Temperature for the Great Lakes
3) Forecast Model Guidance from the following models:
    a. NCEP North American Mesoscale (NAM) Numerical Weather Prediction Model (CONUS region)
    b. MDL Extra-Tropical Storm Surge (ETSS) Model

ODAAS @ MMAP (development version)
ODAAS at MMAP obtains from NCEP the following products:
1) Surface meteorological and SST observations from land, coastal, and offshore platforms for coastal areas and waters
2) NOAA/GLERL Great Lakes Surface Environmental Surface Water Temperature for the Great Lakes
3) Forecast Model Guidance from following models:
    a.NCEP North American Mesoscale (NAM) Numerical Weather Prediction Model (CONUS region)
    b.MDL Extra-Tropical Storm Surge (ETSS) Model
    c.NCEP Global Forecast System (previously referred to as the Aviation Model)
    d.NCEP Rapid Update Cycle (hourly analyses)
4) NWS National Digital Forecast Database of Gridded Suface Weather Forecasts (CONUS region)
5) Estimated River Discharge Observations at Selected USGS Gauges from NERFC, SERFC, MARFC, and WGRFC
6) NWS River Model Adjusted Observations (nowcasts) of Discharge from NERFC, SERFC, MARFC, and WGRFC
7) NWS River Forecast Model Guidance of Discharge from NERFC, SERFC, MARFC, and WGRFC.

Data Acquisition and Monitoring
ODAAS@CO-OPS Aquisition Schedule
ODAAS@CO-OPS Monitoring Web Page
NWS/NCEP/NCO Real-Time Data Monitoring Page 
NWS/NCEP/NCO Production Suite Status
NWS/NCEP and NWS Telecommunication Operations Center Status Messages
NWS/NCEP/NCO NCEP Model Changes

History and Acknowledgments
ODAAS was originally created in CSDL by Charles Sun in 1996. The responsibility of maintaining ODAAS and its development was transferred to Eugene Wei in 1997. In January 1998 the responsibility was given to John Kelley. The weekday monitoring, maintenance, and development of ODAAS was carried out by John Kelley, Sarah Maxwell, Eugene Wei, and intern Allison Thomson in CSDL between 1998 and March 2000. From April 2000 to June 2002, ODAAS was monitored by Meredith Westington in CSDL along with help from John Kelley and Eugene Wei. From July 2002 to January 2003 the monitoring was done by John Kelley with assistance from Eugene Wei. Starting in January 2003, ODAAS has been monitored by Zachary Bronder of CSDL with assistance from John Kelley and Eugene Wei. During the late Spring of 2004, ODAAS started to be monitored 24 x 7 by CORMS personnel with assistance from Zachary Bronder of CO-OPS forecast model operations group. When needed, Zack Bronder is assisted by John Kelley.

The acquisition of NCEP model forecast guidance from NCEP Central Computer System would not be possible without the cooperation of personnel from different branches of NCEP's Central Operations. The excellent service provided to NOS is greatly appreciated.

NOS is also appreciative of the excellent service from the NWS Development and Operations Hydrologists and hydrologists at the Northeast RFC, Middle Atlantic RFC, West Gulf RFC and Southeast RFC for creating special observational and discharge forecast guidance products for NOS and disseminating these operational products to NOS for evaluation and testing in NOS forecast models.

References
Westington, M. and J. G. W. Kelley, 2003: ODAAS’ Real-Time River Information Acquisition for NOS Estuarine Forecast Systems in the Middle-Atlantic Region. NOAA Technical Report NOS CS 16, 46 pp.

Kelley, J.G.W., M. Westington, E. Wei, S. Maxwell, and A. Thomson, 2001: Description of the Operational Data Acquisition and Archive System (ODAAS) to Support the NOS Chesapeake Bay Operational Forecast System (CBOFS). NOAA Technical Report NOS CS 10, 45 pp.

Thomson, A. M. 2000: Status of Acquisition of Real-Time River Observations and Forecast Guidance for NOS Estuarine Nowcast/Forecast System Development. NOAA Technical Report NOS CS 8, 27 pp.

Points of Contact
ODAAS Development Team at MMAP
John G.W. Kelley, PI
Vacant Position - ECO Intern/Programmer

ODAAS Operations at CO-OPS
Zack Bronder

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