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TeachMeFinance.com - explain first detection first detection The term 'first detection' as it applies to the area of carbon dioxide can be defined as ' Identification of a precursor signal, detectable above the noise of natural climate variation, of a significant change in a climate parameter and attribution of this change to an increase in atmospheric carbon dioxide concentration. The signal may be estimated by numeric modeling of the climate, and the noise can be estimated using instrumental data. For any modeled signal that is estimated, the corresponding noise can be estimated from observational data, and a signal-to-noise ratio can be calculated to provide a quantitative measure of detectability'. Previous 5 Terms: Firm power Firm yield firn Firn (Snow) Firn Line Next 5 Terms: First Law of Thermodynamics First purchase (of crude oil) First purchase price First Responder Fiscal Intermediary About the author Mark McCracken Author: Mark McCracken is a corporate trainer and author living in Higashi Osaka, Japan. He is the author of thousands of online articles as well as the Business English textbook, "25 Business Skills in English". Copyright © 2005-2011 by Mark McCracken, All Rights Reserved. TeachMeFinance.com is an informational website, and should not be used as a substitute for professional medical, legal or financial advice. Information presented at TeachMeFinance.com is provided on an "AS-IS" basis. Please read the disclaimer for details.