Premium
Signal Analysis of Irradiation, Temperature and Primary Production in a Small Artificial Pond: I. The Annual Signals
Author(s) -
Lingeman Robert
Publication year - 1980
Publication title -
internationale revue der gesamten hydrobiologie und hydrographie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.524
H-Index - 52
eISSN - 1522-2632
pISSN - 0020-9309
DOI - 10.1002/iroh.19800650602
Subject(s) - environmental science , signal (programming language) , irradiation , photosynthesis , artificial light , ecosystem , production (economics) , biological system , ecology , atmospheric sciences , computer science , biology , physics , botany , optics , illuminance , nuclear physics , programming language , macroeconomics , economics
This paper provides an example of some initial steps in signal analysis applied to a simple aquatic ecosystem in the form of a small artificial pond. Irradation, water temperature and dissolved oxygen concentration were continuously recorded over a two year period. Following the definition and discussion of several related parameters, an analysis procedure for trends and forced annual patterns was proposed and carried out. The annual pattern of photosynthetic fixation of solar energy is characterized by the annual level transfer efficiency, and for the periodic part of the process, by the transfer gain and phase shift. The possible role of temperature is briefly discussed.