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The columbia/enhants dataset (v. 2011-04-07)  >  the energy traceset

There are 2 traces in this traceset
last modified
reason for most recent change
the initial version.
short description

Radiant light energy measurements collected by Columbia University's EnHANTs project.


This traceset includes radiant light energy measurements collected from 2009 to 2010 in a study by Columbia University's EnHANTs project.

release date
date/time of measurement start
date/time of measurement end

Since June 2009, we have been recording irradiance every 30 seconds in several different static locations using TAOS TSL230rd light-to-frequency converters installed on Lab-Jack U3 Data Acquisition boards. We also conducted several short-term experiments where measurement was conducted by sensor devices as they were moved around New York city.

disruptions to data collection
There are multi-day interruptions in data due to power interruptions and device malfunctions.
 the columbia/enhants/energy/stationary trace
 the columbia/enhants/energy/mobile trace
 how to cite this traceset