Optis swMATH ID: 7796 Software Authors: Varejão, Claudeci Gomes; Costa, Marcos Heil; Camargos, Carla Cristina Souza Description: A multi-objective hierarchical calibration procedure for land surface/ecosystem models Land surface and ecosystem processes affect climate and weather in a range of time scales, from seconds to thousands of years. Land surface/ecosystem models (LSEMs) calculate the fluxes between the biosphere and the atmosphere and other ecosystem dynamics processes. In this study, we develop a calibration procedure, based on the theory of ecosystems hierarchy, to optimize all processes simulated by an LSEM. The procedure was implemented on Optis, a software for hierarchical multi-objective calibration of LSEMs. Optis is based on the multi-objective genetic algorithm, Non-dominated Sorted Genetic Algorithm-II (NSGA-II). The calibration was hierarchically performed from the fastest process (radiative fluxes) to the slowest process (carbon allocation), optimizing nine model outputs. The procedure demonstrated to be efficient, with the nine-objective model optimization reaching about 80 Homepage: http://www.tandfonline.com/doi/abs/10.1080/17415977.2011.639453#.UtzqUFso9pg Keywords: land surface models; biosphere-atmosphere interactions; multi-objective optimization; hierarchy of ecosystems; ecosystem models Related Software: Cited in: 1 Publication Cited by 3 Authors 1 Camargos, Carla Cristina Souza 1 Costa, Marcos Heil 1 Varejão, Claudeci Gomes Cited in 1 Serial 1 Inverse Problems in Science and Engineering Cited in 2 Fields 1 Biology and other natural sciences (92-XX) 1 Systems theory; control (93-XX) Citations by Year