Student Research Reports
Long Term Phenology: Green Up & Green Down 2001-2016
Organization(s):Palmer High School
Country:United States of America
Student(s):Blainey Dunyon
Sapphira Flint
Katie Ziegler
Grade Level:Secondary School (grades 9-12, ages 14-18)
GLOBE Teacher:Cheryl Williams
Contributors:
Report Type(s):International Virtual Science Symposium Report
Protocols:Green-Up / Green-Down
Presentation Poster:
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Optional Badges:I am a Collaborator, I make an Impact, I am a Data Scientist
Language(s):
Date Submitted:02/20/2018
It’s a common belief that climate change has a direct correlation to the length of growing season. Our objective was to find out if there was any significant changes in the growing seasons over the years, using green up and green down data. Our group used GLOBE data from both Palmer and Wasilla High School. The schools are located ten miles apart. The data was collected by students between the years 2000 and 2017 and over the years there was no apparent increase or decrease for the date of green up. Our data found that there was a decrease in the date of green down meaning that green down was occurring earlier in the year. Climate is a complicated system with many fluctuations. Even seventeen years of data is not enough to see overall changes in climate. Our group recommends that green up and green down data continue to be collected and climate changes can be reevaluated in twenty years.