Meteorological-Station

Spring 2011 Meteorological Station project Wiki page
**Mentor**: Carl Waite cwaite@uvm.edu

**Team Members**:  Berrett Walter jbwalter@uvm.edu Sophie Halpin shalpin@uvm.edu Alex Stein agstein@uvm.edu

**Next Meeting:** Wednesday March 30th @ 8:30 am

1. design and implement a temperature and soil moisture monitoring plan for the Aiken Green Roof 2. Design and locate a rooftop meteorological station for the Aiken Center (done) 3. Design and implement a water volume data collection system for stormwater discharge from the Aiken roof (green roof and bare controls) 4. Presentation of work in late April
 * Goals: **
 * Determine what monitoring equipment, including dataloggers, multiplexers, sensors, thermocouple wire, and other supplies are needed for the project
 * Determine the specific location of multiplexers (done)
 * Determine length of lead cables for sensors and thermocouples
 * Order equipment and supplies
 * Cut-to-length, fabricate, and test thermocouples
 * Write datalogger program
 * Assemble and test monitoring system in lab
 * Identify and order sensors and equipment
 * Datalogger programming in conjunction with point (1.f.)
 * Assemble and test station in the lab
 * Identify and order the datalogger and multiplexer
 * Write the datalogger program
 * Assemble and test the thermocouples in the lab


 * Useful Links and Information:**

//**Thermocouples:**// The purpose of the thermocouples is to monitor the soil temperature of the green roof on the Aiken Building. The green roof is to be divided into 8 watershed sections: 3 treatments and 1 control with 1 replicates of each of these. The thermocouples will be monitoring the temperatures in each of these 8 watersheds to determine which limits the heat island effect most. Thermocouples are a good instrument to use for this because they are accurate, inexpensive to make, reliable, and can handle and record a wide temperature range. We will be able to connect multiple thermocouples in each watershed at different soil levels to determine an average temperature. [|Thermocouple General Information] [|Thermocouple Fact Sheet]


 * LM35 Temperature Sensors:**

[|LM35 General Info] [|National Semiconductor Link]

-used for determining the length of the thermocouple wires
 * Roof Plans:**





__Temperature Sensor Length Measurements__ Thermocouple lengths Sensor 1 (A <=> 1) 1.3 cm = 10.2 ft Sensor 2 (A<=>2) 1.7 cm = 13.3 ft Sensor 3 (B <=> 3) 3.9 cm = 30.6 ft Sensor 4 (B <=> 6) 3.2 cm = 25.1 ft Sensor 5 (C <=> 4) 2.7 cm = 21.2 ft Sensor 6 (C <=> 5) 2.9 cm = 22.8 ft Sensor 7(D <=> 7) 2.4 cm = 18.8 ft Sensor 8 (D <=> 8) 2.4 cm = 18 ft

Length of Conduit (A <=> B) 7.5 cm = 58.9 ft (A <=> B + B <=> C) 7.5 cm + 5.2 cm = 12.7 cm = 99.9 ft (A <=> B + B <=> D) 7.5 cm + 7.3 cm = 14.8 cm = 116.2 ft (Scale: 1cm=7.85ft)