LAB ASSIGNMENT
Sonahana
EAS104_Lab1FORMAT.pdf
Dendrochronology Lab 1
EAS 104 Fall 2019 Lab Instructor: Linyuan Cui
Label your
tables and
plotsThe Norton Field Guide to Writing by Richard Bullock, Third Edition.
Cover Page: Title, Name, Lab Section
Tree Ring ● What does a tree need to grow? ● What information can you get from tree rings?
Bark
False Ring
Annual RingEarlywood
Latewood Pith
Phloem
Vascular Cambium
Thick Tree Ring
Thin Tree Ring
Location
Thick Tree Ring
Thin Tree Ring
Location
Q1: Harvest Year? Q2: Average daily precipitation (mm/day)? Q3:Total number of rings? Q4:Planted year? Q5: Number of the Thin Tree Ring? Q6: Year for the selected thin ring?
Thick Tree Ring
Thin Tree Ring
Location
The year when the tree
was cut.
Q1: Harvest Year? 2006 Q2: Average daily precipitation (mm/day)? 3.73 mm/d Q3:Total number of rings? 24 Q4:Planted year? 2006-24=1982 Q5: Number of the Thin Tree Ring? The 15th ring Q6: Year for the selected thin ring? 1982+15=1997
Q: What is the satellite precipitation value for 1997?
Q: What is the satellite precipitation value for 1997?
3.1
In-class Assignment
In-class Assignment
How to count the tree ring number?
Write down calculation process
Where can you find this value?
What do thin tree rings indicate in terms of precipitation?
How do you calculate the year below average?
What do you need to pay attention when reading the satellite plot?
