Weather data collected at the Macleish Field Station in Whately, MA during 2015.
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For both, a data frame (
tbl_df) with roughly 52,560 rows and 8 or 9 variables.
The following variables are values that are found in either the
orchard_2015 data tables.
All variables are averaged over the 10 minute inverval unless otherwise noted.
Timestamp for each measurment set in Eastern Standard Time.
average temperature, in Celsius
Wind speed, in meters per second
Wind direction, in degrees
How much water there is in the air, in millimeters
Atmospheric pressure, in millibars
Total rainfall, in millimeters
Amount of radiation coming from the sun, in Watts/meters^2. Solar measurement for Whatley
Photosynthetically Active Radiation (sunlight between 400 and 700 nm), in average density of Watts/meters^2. One of two solar measurements for Orchard
Photosynthetically Active Radiation (sunlight between 400 and 700 nm), in average total over measurement period of Watts/meters^2. One of two solar measurements for Orchard
The Macleish Field Station is a remote outpost owned by Smith
College and used for field research. There are two weather stations on the
premises. One is called
WhatelyMet and the other is
WhatelyMet station is located at (42.448470, -72.680553) and
OrchardMet station is at (42.449653, -72.680315).
WhatelyMet is located at the end of Poplar Hill Road in Whately,
Massachusetts, USA. The meteorological instruments of
WhatelyMet (except the
rain gauge) are mounted at the top of a tower 25.3 m tall, well above the
surrounding forest canopy. The tower is located on a local ridge at an
elevation 250.75m above sea level.
OrchardMet is located about 250 m north of the first tower in an open
field next to an apple orchard. Full canopy trees (~20 m tall) are within
30 m of this station. This station has a standard instrument configuration
with temperature, relative humidity, solar radiation, and barometric
pressure measured between 1.5 and 2.0 m above the ground. Wind speed and
direction are measured on a 10 m tall tower and precipitation is measured
on the ground. Ground temperature is measured at 15 and 30 cm below the
ground surface 2 m south of the tower. The tower is located 258.1 m above
sea level. Data collection at OrchardMet began on June 27th, 2014.
The variables shown above are weather data collected at
OrchardMet during 2015. Solar radiation is measured in two different ways:
PAR variables for Photosynthetic Active Radiation.
Note that a loose wire resulted in erroneous temperature reading at OrchardMet in late November, 2015.
These data are recorded at http://www.smith.edu/ceeds/macleish_monitoring.php
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