Integrated Surface Flux Facility, Research Technology Facility, Earth Observing Laboratory, National Center for Atmospheric Research, UCAR
Data Center Description
The Integrated Surface Flux Facility (ISFF) is designed to study exchange processes between the atmosphere and Earth's surface. This includes the direct measurement of fluxes of momentum, sensible and latent heat, trace gases, and radiation as well as standard atmospheric and surface variables. With multiple sensors and data systems, measurements of horizontal and vertical gradients also can be made. This facility, formed by integrating ATD's former Atmosphere Surface Turbulent Exchange Research facility (ASTER) and Portable Automated Mesonet (PAM III and Flux PAM) facilities, is quite flexible and has been used in Arctic to desert conditions with sensor spacings from 1 m to 60 km (and separations of 1000s of km are possible). Average statistics of all variables, including the second-order moments needed to compute fluxes, are a standard product of ISFF and are available in real-time for display. When possible, every data sample is archived to allow processing using spectral, wavelet, or conditional sampling methods. ISFF also supports the addition of user-supplied sensors with digital or analog outputs at data rates up to 10,000 samples/s. The ISFF is managed by ATD/RTF (formerly ATD/SSSF).