A witness tree @awitnesstree
Witnessing life as a tree in a changing environment for more than a century. Views are my own - sort of (data translated by scientists and communicators at HF). harvardforest.fas.harvard.edu/witness-tree-s… Harvard Forest, Massachusetts Joined July 2018-
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Yesterday, a big rain soaked the soil and my bark. My trunk swelled in diameter! After the sun dries things out out for a while, my trunk might even shrink a bit.
It's raining very heavily now. It has rained 3.9 mm (0.154 inches) in the past hour!
When it rains, as just now, I store extra water in my roots and bark. My bark actually swells and shrinks due to water entering and leaving my system!
Wow, my branches are really going places! Added together, they stretch over 1.6 miles (2.6 km) in length! That's a LOT of nice, cool shade. Thanks to the Schaaf Lab at @EnvSchool for the cool LIDAR selfie that computed these stats.
Do you want to know what I look like right now? I will send you a pic, if you ask me "@awitnesstree send me a selfie". If you want to learn more details about how I am able to talk to you, visit harvardforest.fas.harvard.edu/witness-tree-s….
Last month was a pretty average month, climate-wise, with an average temperature of 1.5 ℃ (34.7 ℉). And 111.9 mm of precipitation is neither wet, nor dry for Harvard Forest in March.
When it snows, as just now, a white blanket builds up that protects my roots from frost damage in the winter and it may even provide a refreshing drink in spring, if it sticks around!
It's the #InternationalDayofForests! As an oak tree, I am the dominant species in my local forest, but there's also a lot of maple (Acer), pine (Pinus), birch (Betula), and beech (Fagus). What type of forest is near you?
I am just an average oak tree, but boy do I take up space! My total surface area (without even including my roots) is 437 square meters -- about 1.25 times as big as an IMAX screen! Thanks to the Schaaf Lab at @EnvSchool for the cool LIDAR selfie that computed these stats.
This is a pretty large snow pack. Out of all the days with snow on the ground, we are in the top 10% of largest snow packs with the equivalent of 102 mm (4 inches) of water.
This is a pretty large snow pack. Out of all the days with snow on the ground, we are in the top 10% of largest snow packs with the equivalent of 109 mm (4.29 inches) of water.
Ask how I'm doing, and I'll answer! Just type "@awitnesstree How are you?" If you want to learn more details about how I am able to talk to you, visit harvardforest.fas.harvard.edu/witness-tree-s….
Happy #PiDay! Thanks to Pi, scientists can estimate my trunk diameter (0.84 cm) or even the area through which my sap flows (NA m2).
Happy #PiDay! Pi is extra important to those of us shaped like a cylinder. How many digits of Pi can you recite from memory?
Yesterday, a lot of snow came down. I like snow, as it protects my roots from freezing. The snow is like a nice pair of woolen socks. Who likes to have cold feet?
Look who's visited me earlier this year! Happy #NationalWildlifeDay!
When it snows, as just now, a white blanket builds up that protects my roots from frost damage in the winter and it may even provide a refreshing drink in spring, if it sticks around!
Last month was warmer than usual, with an average temperature of -4.5℃ (23.9℉). February is usually 3℃ (5.4℉) colder at Harvard Forest!
It's snowing very heavily now. It has snowed 3.1 mm (0.122 inches) in the past hour!
My trunk is about half the volume of a concrete mixer truck, and most of that area is stored carbon, which offsets CO2 emissions in the atmosphere. Thanks to the Schaaf Lab at @EnvSchool for the cool LIDAR selfie.
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130 Followers 941 Following@lydmaree @awitnesstree Big thanks to @ttrademacher and @atmosjones for making this possible!
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@awitnesstree Clearly we need to work on this message for winter! This was definitely all snow (here's our latest snow data graph - which you can find here: harvardforest.fas.harvard.edu/real-time-data…)
@ShawnaGreyeyes It is 25℃ (77 ℉) right now--warmer than average, which means I'm try to conserve water and grow more slowly.
This year, my trunk has grown roughly 1.5 mm (0.06 inches) in diameter. In mid-summer, my growth begins to slow. The "late wood" rings I am producing now look darker, and contain more carbon, than my faster-growing "early wood" rings.
I am just an average oak tree, but boy do I take up space! My total surface area (without even including my roots) is 437 square meters -- about 1.25 times as big as an IMAX screen! Thanks to the Schaaf Lab at @EnvSchool for the cool LIDAR selfie that computed these stats.
@ttrademacher Rainfall this week has been typical for this time of year. Water is moving steadly through my cells and transport vessels so that I can grow. Whew!
"If you've been aching for a cool breeze, you’re not alone. A northern red oak in the Harvard Forest has been hot, too." The first news feature about @awitnesstree is out today, by @jessicahester @atlasobscura atlasobscura.com/articles/tweet…
Neat to see how rain events over the past month boosted growth in our witness tree's branches.
My trunk and branches are on the fast track! My trunk has grown 0.255 mm and my branches 0.279 mm so far this month.
Hello, World! I am a century-old red oak at Harvard Forest in MA: one of the oldest living organisms on the internet! Follow me to learn more about my life in a changing environment. For more on info how I work, go to: harvardforest.fas.harvard.edu/witness-tree.
The last 2 days were extremely hot for July. When is this heatwave going to end?
My trunk and branches are on the fast track! My trunk has grown 0.256 mm and my branches 0.278 mm so far this month.
My trunk and branches are on the fast track! My trunk has grown 0.255 mm and my branches 0.279 mm so far this month.
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