Robust outdoor data loggers are used in amateur weather observation to record environmental conditions, and are also used to verify readings from other recording equipment.
In a suburban garden near Middlesbrough, amateur weather
observer John Goulding is using Tinytag
data loggers as an integral part of his monitoring system.
His equipment includes temperature and humidity instrumentation
located in a large Stevenson screen, and he also records other
meteorological elements including rainfall quantity and duration,
sunshine, wind direction and speed, barometric pressure, 30 cm
earth temperature and grass minimum temperature. Together with
manual readings, data from the majority of these instruments is
downloaded to a PC for analysis and collation into climatological
The Stevenson screen
contains two Tinytags along with other electronic and manual
instrumentation: a Tinytag View 2 TV-4500
logger records temperature and RH, and a
Plus 2 TGP-4020 with a thermistor probe records
temperature. A second TGP-4020 is
used to record grass temperatures.
The Tinytags usually log every two minutes, with data
downloaded weekly and summarised for monthly submission to the
Climatological Observers Link (COL), an organisation that
has been publishing monthly reports of the weather for over 40
years. Information is also shared with other weather-interested
personnel; apart from summary information, this frequently includes
details of notable weather events over a short timescale, for which
the Tinytag loggers are ideal - e.g. a sharp change in
temperature/humidity at the passage of a cold front; temperature
variations at grass level under cloudless conditions; temperature
changes during a solar eclipse, etc. Data is also regularly
submitted to a commercial weather forecasting organisation for
inclusion in their database.
John chose Tinytags after a recommendation from a very
experienced member of the COL. He is impressed with their
good build quality, calibration which
ensures accuracy traceable to a recognised standard, the
easy to use Tinytag
Explorer software, and the ability to export
the data to other packages for analysis. John comments,
"It was also important to be able to site the logger or
its probe adjacent to my other nearby sensors in order to maintain
homogeneity of a longstanding climatological record. With the
normal logging interval of two minutes, the memory size adequately
allows for downloading weekly."
On behalf of the COL, John is also the custodian of another
is loaned on request to members to enable them to compare results
with their own instrumentation, in order to improve accuracy. A
number of observers have themselves purchased Tinytags a result of
such use and very positive feedback from existing users.