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Home > Cold Research and Engineering Laboratory Reports > > CR97_09

Local Variation in Winter Morning Air Temperature
Figure 1. Mean annual number of subzero (<17.8C) days occurring during the period 195180, from NOAA (1982)
A RIVER PLANE TEMPERATURE REFERENCE
Figure 3. Topography of the study area east of the Connecticut River
INSTRUMENTATION, OBSERVATIONS, AND MEASUREMENT TECHNIQUES
Table 2. Distance required to respond to a change in temperature
Figure 5. Magnitude of difference of repetitive air temperature measurements (solid circles), accompanying a direction reversal, over a 3- to 12-minute period
EVALUATION OF THE CONNECTICUT RIVER SURFACE AS A TEMPERATURE REFERENCE PLANE
Table 5. Frequency of temperature difference at a 100-m distance from bridge
Table 6. Frequency analysis of temperature difference along the river plane referenced to the temperature at Piermont bridge
DISCUSSION - CR97_090022
CONCLUSIONS OF PART I
PART II: OTHER TEMPERATURE VARIATIONS WITH RESPECT TO THOSE ALONG A RIVER
ANALYSIS OF VERTICAL TEMPERATURE STRUCTURE IN THE STUDY AREA
Figure 11. Mean elevation structure of surface air temperature, stratified by snow cover, when inversion was apparent along PWA
Figure 12. Median temperature difference and geometric standard deviation of temperature difference along the path PWA
Figure 13. Eighty-fourth percentile of temperature difference, and frequency of lesser temperature with respect to P, along the path PWA
EXAMINATION OF SOME SINGULAR EVENTS
Figure 15. Topographic cross sections at 45 direction intervals extending radially from Z
Figure 16. Temperatures in and around basin II compared with the 2-cm temperature at Z
Figure 17. Temperaturetopographic cross section obtained 0700LCL 07 February 1993, the coldest air observed during the winters 1990-93
Figure 18. Vertical profiles of 0700LCL air temperature extracted from surface observations along P-W-A
SOME EXTREME TEMPERATURES OBSERVED COINCIDENT WITH UNIFORM SNOW COVER
Figure 20. Inferred isotherms above the topographic cross section along ZWA on 20 (a) and 27 (b) January 1994
Figure 21. Temperatures observed relative to the topographic cross section along PSL on 20 and 27 January 1994
Figure 22. Temperature observed relative to the topographic cross section along the 045 radial from Z
DISCUSSION - CR97_090038
DISCUSSION-continue - CR97_090039
CONCLUSIONS OF PART II
PART III: SOME EXAMPLES OF THE INFLUENCE OF CULTURAL AND PHYSICAL FEATURES ON MORNING AIR TEMPERATURE
THE "HEAT ISLAND" ASSOCIATED WITH A FREEZING RIVER
COLD AIR DRAINS
FREQUENCY OF SUBZERO (<17.8C) DAYS IN THE STUDY AREA
DISCUSSION - CR97_090045
CONCLUSIONS OF PART III
LITERATURE CITED - CR97_090047
LITERATURE CITED-continue - CR97_090048
Report Documentation Page - CR97_090049
CR97_09






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