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Data from LTHAL


Site Information

Site ID: LTHAL
Equipment Owner:
Latitude / Longitude: 37.9° / -122.12°
Elevation: 800 feet
Anemometer 0 Height: 30 feet above ground
Anemometer 1 Height: 30 feet above ground

Description:
Larry Thal
Lafayette, CA
Data Logger appears to have been calibrated for APRS6500 (Gold Cup) Anemometer in MPH. Still unclear exact model/type of sensor was used.
Anemometer 0: Left at default APRS6500 Calibration
Anemometer 1: Same readings converted to NRG #40H Calibration

Data Coverage

Start Date Stop Date
2009-09-24 15:50:362009-10-03 12:20:36
2009-10-20 14:02:362009-11-03 19:55:36
2009-11-05 19:43:362009-12-31 18:12:36
2010-01-31 18:21:362010-07-01 21:15:36
2010-08-01 09:04:362010-10-28 14:11:36
2011-01-28 00:00:362011-09-22 20:26:36

Wind Speed Frequency Analysis

Frequency Distribution Graph Frequency Distribution Graph
MPH Anemometer 0 Anemometer 1 Anemometer 2
Count Percent Count Percent Count Percent
0 112327 14.1% 112327 14.1%
1 0 0.0% 64976 8.1%
2 13515 1.7% 98901 12.4%
3 114822 14.4% 82925 10.4%
4 82716 10.4% 64621 8.1%
5 68866 8.6% 58885 7.4%
6 61470 7.7% 55651 7.0%
7 57209 7.2% 56113 7.0%
8 53547 6.7% 45721 5.7%
9 48947 6.1% 39469 4.9%
10 43172 5.4% 34690 4.3%
11 36524 4.6% 24243 3.0%
12 29283 3.7% 18032 2.3%
13 22188 2.8% 12982 1.6%
14 16384 2.1% 9863 1.2%
15 11692 1.5% 5958 0.8%
16 8113 1.0% 4044 0.5%
17 5501 0.7% 2885 0.4%
18 3717 0.5% 1805 0.2%
19 2494 0.3% 1273 0.2%
20 1752 0.2% 823 0.1%
21 1203 0.1% 646 0.1%
22 810 0.1% 383 0.1%
23 581 0.1% 291 0.0%
24 383 0.1% 193 0.0%
25 291 0.0% 182 0.0%
26 193 0.0% 112 0.0%
27 176 0.0% 55 0.0%
28 105 0.0% 63 0.0%
29 64 0.0% 32 0.0%
30 57 0.0% 17 0.0%
31 35 0.0% 16 0.0%
32 19 0.0% 16 0.0%
33 17 0.0% 11 0.0%
34 16 0.0% 10 0.0%
35 13 0.0% 7 0.0%
36 10 0.0% 3 0.0%
37 8 0.0% 2 0.0%
38 3 0.0% 4 0.0%
39 3 0.0% 2 0.0%
40 3 0.0% 1 0.0%
41 3 0.0% 3 0.0%
42 0 0.0% 0 0.0%
43 2 0.0% 0 0.0%
44 2 0.0% 0 0.0%

Download Data

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CSV Spread Sheet
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Average Wind Speeds for Period

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End Date:

Hourly Average Plots

The following plots show the average values for each hour. Where data is not available, a straight line will connect the last value to the next value.

Hourly Average Wind Speeds

Hourly Average Plot
Hourly Average Plot

Hourly Average Temperature

Hourly Average Temperature Plot

Hourly Average Data Logger Input Voltage

Hourly Average Input Voltage Plot

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