Oklahoma Mesonet
The Oklahoma Mesonet is a network of environmental monitoring stations designed to measure the environment at the size and duration of mesoscale weather events. The phrase "mesonet" is a portmanteau of the words mesoscale and network. In meteorology, “mesoscale” refers to weather events that range in size from one mile to 150 miles and can last from several minutes to several hours. Mesoscale events include thunderstorms, wind gusts, heat bursts and dry lines. Without densely spaced weather observations, these mesoscale events might go undetected.
The network consists of 120 automated stations covering Oklahoma and each of Oklahoma's counties has at least one station.[1] At each site, the environment is measured by a set of instruments located on or near a 10-meter (33 ft)-tall tower. The measurements are packaged into “observations” and transmitted to a central facility every 5 minutes, 24 hours per day, every day of the year.
Oklahoma Mesonet is a cooperative venture between Oklahoma State University and the University of Oklahoma (OU) and is supported by the taxpayers of Oklahoma. It is headquartered at the National Weather Center on the OU campus.
Observations are available free of charge to the public.
Background
According to the Tulsa World, creation of the Oklahoma Mesonet resulted from the inability of emergency management officials to plan for the May 26–27, 1984 flood that killed 14 people in the Tulsa area. The 1984 flood demonstrated that emergency managers could not receive accurate and adequate data quickly enough about the progress of flooding from airport radars, updated hourly. The University of Oklahoma and Oklahoma State University collaborated with the Climatological Survey and other public and private agencies to create the Oklahoma Mesonet. This system collects weather information (e.g., wind speed, rainfall, temperature) every 5 minutes from 120 Mesonet stations throughout Oklahoma. Emergency planners can now monitor up-to-date weather information in advance of the arrival of an approaching storm.[2]
The article quoted an official of the Tulsa Area Emergency Management as saying that his staff uses the Oklahoma Mesonet every day.[2]
Variables Measured
Every five minutes
- Air temperature and relative humidity at 1.5 m (4.9 ft)
- Rainfall
- Barometric pressure
- Solar radiation
- Wind speed and direction at 10 m (33 ft)
Every 15 minutes
- Soil temperature under bare soil and natural sod at 5 cm (2.0 in) and 10 cm (3.9 in)
- Soil temperature under natural sod at 30 cm (12 in)
Every 30 minutes
- Soil moisture at 5 cm (2.0 in), 25 cm (9.8 in), and 60 cm (24 in)
See also
Flooding and flood control in Tulsa
References
- ↑ McPherson, R. A., C. Fiebrich, K. C. Crawford, R. L. Elliott, J. R. Kilby, D. L. Grimsley, J. E. Martinez, J. B. Basara, B. G. Illston, D. A. Morris, K. A. Kloesel, S. J. Stadler, A. D. Melvin, A.J. Sutherland, and H. Shrivastava, 2007: Statewide monitoring of the mesoscale environment: A technical update on the Oklahoma Mesonet. J. Atmos. Oceanic Tech., 24, 301-321.
- 1 2 Peterson, Althea. "Oklahoma Mesonet had roots in the 1984 Memorial weekend flooding." Tulsa World. May 27, 2014. Retrieved June 19, 2014.