Specifications
Section 1. General 
Standard measurement depths: 
10.0 cm ± 1.0 cm (AASC) 
5.0 cm, 10.0 cm, 50.0 cm, 100.0 cm (WMO) 
FIGURE 1.3-1. Effect of Structure on Wind Flow 
1.3.6 Siting References 
1
 EPA, (1987). On-Site Meteorological Program Guidance for Regulatory 
Modeling Applications, EPA-450/4-87-013. Office of Air Quality Planning 
and Standards, Research Triangle Park, North Carolina 27711. 
2
 WMO, (1983). Guide to Meteorological Instruments and Methods of 
Observation. World Meteorological Organization No. 8, 5th edition, Geneva, 
Switzerland. 
3
 The State Climatologist, (1985) Publication of the American Association of 
State Climatologists: Height and Exposure Standards for Sensors on 
Automated Weather Stations, 
v. 9, No. 4 October, 1985. 
4
 EPA, (1989). Quality Assurance Handbook for Air Pollution Measurement 
Systems, EPA Office of Research and Development, Research Triangle Park, 
North Carolina 27711. 
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