measuring instrument for measuring the luminous intensity of a source by comparing it (visually or photoelectrically) with a standard source photographic equipment that measures the intensity of light
Sevilleta Long-Term Ecological Research
The theme of the Sevilleta Long-Term Ecological Research (LTER) involves the characterization of ecological responses to climate dynamics and related disturbances along environmental gradients at multiple scales. http://sevilleta.unm.edu