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# A PROJECT FOR CALCULATING GROWING DEGREE DAYS (GDD) IN CANADA

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# Introduction
The Growing Degree Day, or GDD, is a heat index that can be used to predict when a crop will reach maturity. Each day’s GDD is calculated by subtracting a reference temperature, which varies with plant species, from the daily mean temperature.
The reference temperature for a given plant is the temperature below which its development slows or stops. For example, cool season plants, have a reference temperature of 40 degrees fahrenheit while warm season plants, have a reference temperature of 50 degrees fahrenheit.
The development of plants depends on the accumulation of heat and since cool season plants have a lower reference temperature, they accumulate GDDs faster than warm season plants.

GDUs are accumulated by adding each day’s GDs contribution as the season progresses.
          
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### Plot Code

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### Data Visualization

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### Data Visualization

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### Code For Download function

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### Code Cont..

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### Example .CSV file

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# GDD Calculation 
      
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# Bokeh Plot

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Gdd Plot

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GDD over Tbase

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Data Visualization:

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Min-Max:

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Gdd accumulated:

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Gdd Plot:

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GDD over Tbase:

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The “main.py” which executes the core task, question 1 of secondary task and question 3 of secondary task, primarily spends it's time downloading data, computing GDD and plotting.

Fortunately the task can be parallelized based on cities and years.

x1=[stationid1, stationid2, stationid3],
y1=[2015, 2014, 2013, 2012],
x2=[stationid1, stationid2, stationid3, stationid4],

calling min_max function,
Calling bokeh Plot function,
calling gdd plot,

2nd set for bokeh,
Section 2 question 1 (bokeh Plot),
Section 2 question 3 (bokeh Plot),

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#  MULTI PROCESSING EXECUTION
      
      
###number of processes
Par_comp = Pool(5)                      
Par_comp.map(P_func1, x1),
Par_comp.map(P_func2, x1),
Par_comp.map(P_func3, y1),
Par_comp.map(P_func4, x2),
Par_comp.map(P_func5, x2),
Par_comp.map(P_func6, x2),

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# Mark Down-to_Slide HTML Hosting on Github

<img src="slide2.png" width="720" height="402"/>   
      
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# Thank you