Map climatic features as the long-term mean values (of atmospheric pressure, temperature, humidity, total precipitation, and so forth) to connect points with equal values of the feature in question—for example, isobars for pressure, isotherms for temperature, and isohyets for precipitation. Isoamplitudes are drawn on maps of amplitudes (for example, annual amplitudes of air temperature—that is, the differences between the mean temperatures of the warmest and coldest month). Isanomals are drawn on maps of anomalies (for example, deviations of the mean temperature of each place from the mean temperature of the entire latitudinal zone). Isolines of frequency are drawn on maps showing
IF-MAP Version 2.1 of the IF-MAP spec was published on May 7, 2012. The primary new feature of IF-MAP 2.1 is that the IF-MAP identifier space became extensible. A reference implementation is available under GPLv3 license on Google Code repository. IF-MAP is supported by a variety of vendors: IF-MAP The Interface for Metadata Access Points (IF-MAP) is an open specification for a client/server protocol developed by the Trusted Computing Group (TCG) as one of the core protocols of the Trusted Network Connect (TNC) open architecture. IF-MAP provides a common interface between the Metadata Access Point (MAP), a database server acting as