Evaluation of the kriging method to predict 7-h seasonal mean ozone concentrations for estimating crop losses

Journal Article · Fri May 01 00:00:00 EDT 1987 · J. Air Pollut. Control Assoc.; (United States)

DOI:https://doi.org/10.1080/08940630.1987.10466247· OSTI ID:6150111

Lefohn, A S; Knudsen, H P; Logan, J A; Simpson, J; Bhumralkar, C

Using kriging, a statistical technique, the National Crop Loss Assessment Network (NCLAN) program estimated growing season 5-month (May-September) ambient 7-h mean O3 concentrations for each of the major crop growing areas of the US for 1978-1982. The O3 estimates were used to predict economic benefits anticipated by lowering O3 levels in the US. This paper reviews NCLAN's use of kriging to estimate 7-h seasonal mean O3 concentrations for crop growing regions. Although the original kriging program used by NCLAN incorrectly calculated the diagonal elements of the kriging equations, this omission did not result in significant errors in the predicted estimates. Most of the data used in estimating the 7-h seasonal values were obtained from urban areas; the use of these data tended to underestimate the 7-h seasonal O3 concentrations in rural areas. It is recommended that only O3 data that are representative of agricultural areas and have been collected under accepted quality assurance programs be used in future kriging efforts.

• Research Organization: A.S.L. and Associates, Helena, MT
• OSTI ID: 6150111
• Journal Information: J. Air Pollut. Control Assoc.; (United States), Vol. 37:5
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AIR POLLUTION CONTROL
COST BENEFIT ANALYSIS
CROPS
LOSSES
OZONE
TOXICITY
AIR POLLUTION MONITORING
CALCULATION METHODS
DATA ANALYSIS
KRIGING
QUALITY ASSURANCE
RECOMMENDATIONS
CONTROL
MATHEMATICS
POLLUTION CONTROL
STATISTICS
560300* - Chemicals Metabolism & Toxicology