Here are some interesting graphs of some of the data thus far from the station. Though not able to grab more than a year at a time, this first image is the daily maximum and minimum temperature for the first 12 months:
Thayne Elementary max and min temps from September 2010 to August 2011 |
Thayne Elementary max and min temps from May 2011 to April 2012 |
For the short history of the station, the highest observed temperature was 94F on August 26, 2011. The coldest occurred on February 2, 2011 when -30F was observed. The coldest this past winter also occurred in 2011 when -15F was hit on December 23rd.
The winter of 2010-2011 saw the temperature dip below zero on 28 days This past winter there were 40 days below zero. December 2011 was particularly cold when 20 days dipped below zero.
In 2011, the first full summer of observations, there were only 6 days when the temperature exceeded 90F.
The highest wind gust thus far observed was 54 mph at 6pm, June 29,2011.
It is interesting to look at the data which has been collected with the soil moisture and temperature sensors since they were installed last August.
The first temperature sensor is located just below the surface on the school grounds with the 2nd sensor buried at a depth of one foot and the third at 2 feet.
When looking at the sensor located just below the surface, it is surprising to see the large range of temperatures on particularly sunny days.
Near surface Thayne Elementary temperature |
However the 1 foot and 2 foot sensors tell a much different story with both dropping to freezing early in January and remaining there until the last week in March.
Thayne Soil Temperature at a depth of one foot |
Thayne Soil Temperature at a depth of two feet. |
Thayne 1 foot soil moisture content in centibars |
http://www.weatherlink.com/user/thayne/index.php?view=summary&headers=1
For additional information (as to what this measurement suggests) the following is helpful:
General rule of thumb for interpretation:
Soil moisture is nearing a critically dry level when soil tension (indicated by the centibar meter reading) reaches a level that corresponds to more than 50 percent depletion of the plant available water at a specific soil depth. The critical soil tension level that corresponds with 50 percent depletion levels will vary depending upon soil type because of different soil porosity characteristics.. For example, a soil tension reading of 35 centibars may indicate that a very sandy soil will approach 50 percent depletion of plant available soil moisture but for a loam/silt loam soil 50 percent depletion may not be approached until tension readings approach 110 to 130 centibars.
No comments:
Post a Comment