TABLE 1 6
POWER LAW EXPONENTS 6
FOR VARIOUS DESCRIPTIONS OF TERRAIN 6
BY DAVENPORT (1960) [3] 6
TABLE 2 7
VARIATION IN GUSTINESS WITH HEIGHT 7
IN A TERRAIN CHARACTERIZED BY A POWER LAW 7
EXPONENT OF 1/4.75 7
TABLE 3 10
SELECT LEAST-SQUARES SOLUTIONS FOR THE 10
ATTENUATION COEFFICIENT [5] 10
TABLE 4 16
ESTIMATES OF DISPLACEMENT HEIGHT (D) 16
AND AERODYNAMIC ROUGHNESS (ZO) 16
FOR VARIOUS SHAPES [12] 16
TABLE 5 22
HISTORY OF THE POWER LAW EXPONENT, a, 22
IN THE ASCE 7 STANDARD [1],[14] 22
TABLE 6 29
SUMMARY DATA FOR ALL WIND EVENTS DURING THE PERIOD OF RECORD 29
Table A-1 - Characteristics of Monitoring Locations 1
Figure 1 3
Interfacial Layer 3
Figure 2 - Portable near-ground wind station 23
with a anemometer at a 10-ft (3-m) height above ground. 23
Figure 3a - Lower tower anemometer 24
at a 33-ft (10-m) height above ground. 24
Figure 3b - Upper tower anemometer 24
at a 187-ft (57 m) height above ground. 24
Figure 4 - Aerial photograph of 10-ft (3-m) height wind monitoring stations 26
with an approximate scale of 1:8400. The tower station with anemometers at 33-ft (10-m) and 187-ft (57 m) heights is labeled as #2. 26
Figure 5 - Maximum hourly gust trace for ground stations 28
Figure 6 - Plot of estimated for daily peak gust wind measurements based on 187-ft (57-m) tower anemometer and 33-ft (10-m) tower anemometer. 30
Figure 7 - Plot of estimated for daily maximum 1-minute mean wind measurements based on 187-ft (57-m) tower anemometer and 33-ft (10-m) tower anemometer. 30
Figure 8 - Plot of estimated for daily maximum 10-minute mean wind measurements based on 187-ft (57-m) tower anemometer and 33-ft (10-m) tower anemometer. 31
Figure 9 - Plot of estimated for daily peak gust wind measurements based on 187-ft (57-m) tower anemometer and 10-ft (3-m) tower anemometer. 31
Figure 10 - Plot of estimated for daily maximum 1-minute mean wind measurements based on 187-ft (57-m) tower anemometer and 10-ft (3-m) tower anemometer. 32
Figure 11 - Plot of estimated for daily maximum 10-minute mean wind measurements based on 187-ft (57-m) tower anemometer and 10-ft (3-m) tower anemometer. 32
Figure 12 - Plot of COV of for daily peak gust wind measurements based on the 187-ft (57-m) tower anemometer and the 10-ft (3-m) near-ground anemometers. 33
Figure 13 - Plot of COV of for daily maximum 1-minute mean wind measurements based on 187-ft (57-m) tower anemometer and the 10-ft (3-m) near-ground anemometers. 34
Figure 14 - Plot of COV of for daily maximum 10-minute mean wind measurements based on 187-ft (57-m) tower anemometer and the 10-ft (3-m) near-ground anemometers. 34
Figure 15 - Power law profile for peak gust wind speeds based on the 187-ft (57-m) tower data and an assumed gradient height of 1,200 ft (366 m). 36
Figure 16 - Power law profile for maximum 1-minute mean wind speeds based on the 187-ft (57-m) tower data and an assumed gradient height of 1,200 ft (366 m). 37
Figure 17 - Power law profile for maximum 10-minute mean wind speeds based on the 187-ft (57-m) tower data and an assumed gradient height of 1,200 ft (366 m). 38
Figure 18 - Turbulence intensity profile for a 1-minute period 39
at the time of each station’s peak gust record. 39
Figure 19 - Turbulence intensity profile for a 10-minute 40
period at the time of each station’s peak gust record. 40
Figure A-1 - View Looking Northwest 2
(Station 1) 2
Figure A-3 - View Looking East 2
(Station 1) 2
Figure A-2 - View Looking Northeast 2
(Station 1) 2
Figure A-4 - View Looking Southeast 2
(Station 1) 2
Figure A-5 - View Looking South 3
(Station 1) 3
Figure A-7 – View Looking West 3
(Station 1) 3
Figure A-6 - View Looking Southwest 3
(Station 1) 3
Figure A-8 – View Looking Northwest 3
(Station 1) 3
Figure A-9 - View Looking North 4
(Station 3) 4
FigureA-11 - View Looking East 4
(Station 3) 4
Figure A-10 - View Looking Northeast 4
(Station 3) 4
Figure A-12 - View Looking Southeast 4
(Station 3) 4
Figure A-13 - View Looking South 5
(Station 3) 5
FigureA-15 - View Looking West 5
(Station 3) 5
Figure A-14 - View Looking Southwest 5
(Station 3) 5
Figure A-16 - View Looking Northwest 5
(Station 3) 5
Figure A-17 - View Looking North 6
(Station 4) 6
Figure A-19 - View Looking East 6
(Station 4) 6
Figure A-18 - View Looking Northeast 6
(Station 4) 6
Figure A-20 - View Looking Southeast 6
(Station 4) 6
Figure A-21 - View Looking South 7
(Station 4) 7
Figure A-23 - View Looking West 7
(Station 4) 7
Figure A-22 - View Looking Southwest 7
(Station 4) 7
Figure A-24 - View Looking Northwest 7
(Station 4) 7
Figure A-25 - View Looking North 8
(Station 5) 8
Figure A-27 - View Looking East 8
(Station 5) 8
Figure A-26 - View Looking Northeast 8
(Station 5) 8
Figure A-28 - View Looking Southeast 8
(Station 5) 8
Figure A-29 - View Looking South 9
(Station 5) 9
Figure A-31 - View Looking West 9
(Station 5) 9
Figure A-30 - View Looking Southwest 9
(Station 5) 9
Figure A-32 - View Looking Northwest 9
(Station 5) 9
Figure A-33 - View Looking North 10
(Station 6) 10
Figure A-35 - View Looking East 10
(Station 6) 10
Figure A-34 - View Looking Northeast 10
(Station 6) 10
Figure A-36 - View Looking Southeast 10
(Station 6) 10
Figure A-37 - View Looking South 11
(Station 6) 11
Figure A-39 - View Looking West 11
(Station 6) 11
Figure A-38 - View Looking Southwest 11
(Station 6) 11
Figure A-36 - View Looking Northwest 11
(Station 6) 11