1. Ballard, J.K., 1981. Apples critical temperatures for blossom buds. Extension Bulletin 0913. Washington State University, Cooperative Extension, Pullman.
2. Multivariate interpolation to incorporate thematic surface data using inverse distance weighting (IDW);Bartier;Comput. Geosci.,1996
3. Bates, E.M., Lombard, P.B., 1978. Evaluation of temperature inversions and wind machine on frost protection in southern Oregon. Agric. Exp. Sta. Special Report 514, Oregon State University.
4. A climatological assessment of the utility of wind machines for freeze protection in mountain valleys;Doesken;J. Appl. Meteorol.,1989
5. Calibration and field test of soil heat flux plates;Fuchs;Soil Sci. Soc. Am. Proc.,1968