Presentation on theme: "Decadal Wind Trends at the Savannah River Site. Allen H. Weber §, Robert L. Buckley, and Matthew J. Parker Savannah River National Laboratory, Aiken,"— Presentation transcript:
Decadal Wind Trends at the Savannah River Site
Allen H. Weber §, Robert L. Buckley, and Matthew J. Parker Savannah River National Laboratory, Aiken, South Carolina §ret.
§ Corresponding author address: A. Weber, 820 Jackson Ave., North Augusta, SC
Southeast Stations Used
Wind and Temperature Observations NWS and SRNL data show the mean annual daytime and nighttime temperatures are increasing ~0.04 and ~0.05 ºC respectively, per year. The wind speed is decreasing for this area of the Southeast.
Increasing SRNL Temperature Trend
Decreasing Wind Speed Trend in the SE
Decreasing Wind Speed Trend at SRNL
Slopes of Trends
Seasonal Slopes of Trends
E and A for Daytime and Nighttime E for daytime and nighttime from SRNL Area Towers is increasing at a rate of ~0.03 and ~0.01 degrees per year, respectively. A for daytime from the SRNL Area Towers is increasing at a rate of ~0.03 degrees per year. Nighttime values are decreasing by ~0.10 degrees per year.
Conclusions Daytime and nighttime temperatures are increasing ~4 and ~5 ºC respectively, per century. Daytime and nighttime speeds are decreasing ~0.9 and ~1.4 m/s respectively, per century Increases in E for daytime and nighttime suggest that convective turbulence is increasing. This is probably due to a decrease in the thermal stability between the surface and the 60-m level. The daytime rate for E is increasing more rapidly than the nighttime rate.