Results 11 to 20 of about 153,041 (262)

Modeling Institutions in Socio-Ecosystems [PDF]

Proceedings of the Thirtieth International Joint Conference on Artificial Intelligence, 2021
In socio-ecosystems, human activities are structured in time and space by interactions between different regulatory systems with different collective goals. These regulatory systems are modeled by institutions and organizations, and the regulatory mechanisms by norms applied to agents in Multi-Agent Systems (MAS).
Raharivelo, Sitraka Oliva, Müller, Jean Pierre   +1 more
openaire   +3 more sources

The empirical modeling of an ecosystem [PDF]

Ecological Modelling, 1978
Abstract The authors have endeavored to create a verified a-posteriori model of a planktonic ecosystem. Verification of an empirically derived set of first-order, quadratic differential equations proved elusive due to the sensitivity of the model system to changes in initial conditions. Efforts to verify a similarly derived set of linear differential
Ulanowicz, Robert E., Flemer, David A., Heinle, Donald R., Huff, Rogers T.   +3 more
openaire   +3 more sources

Modular Ecosystem Modeling

Environmental Modelling & Software, 2004
The Library of Hydro-Ecological Modules (LHEM, http://giee.uvm.edu/LHEM) was designed to create flexible landscape model structures that can be easily modified and extended to suit the requirements of a variety of goals and case studies. The LHEM includes modules that simulate hydrologic processes, nutrient cycling, vegetation growth, decomposition ...
Alexey A. Voinov, Carl Fitz, Roelof Boumans, Robert Costanza   +3 more
openaire   +3 more sources

Modelling an ecosystem: The example of agro-ecosystems

Ecological Modelling, 2011
Abstract Methods to predict ecosystem responses to changing environmental conditions, including options for mitigation and management, are vital for scientists and policy makers. We propose that modelling ecosystems by grouping species into trophic-functional types has great utility, because it is potentially generic and applicable to any ecosystem ...
Caron-Lormier, G., Bohan, D. A., Dye, R., Hawes, C., Humphry, R. W., Raybould, A.   +5 more
openaire   +1 more source

Mapping Photosynthesis Solely from Solar-Induced Chlorophyll Fluorescence: A Global, Fine-Resolution Dataset of Gross Primary Production Derived from OCO-2

Remote Sensing, 2019
Accurately quantifying gross primary production (GPP) globally is critical for assessing plant productivity, carbon balance, and carbon-climate feedbacks, while current GPP estimates exhibit substantial uncertainty. Solar-induced chlorophyll fluorescence
Xing Li, Jingfeng Xiao
doaj   +1 more source

Implementing Ecosystem-Based Management Principles in the Design of a Salmon Ocean Ecology Program

Frontiers in Marine Science, 2020
Two decades have passed since the initiation of the National Oceanic and Atmospheric Administration’s research program aimed at advancing the understanding of estuary and ocean ecology of United States West Coast Pacific salmon (Oncorhynchus spp.).
Brian K. Wells, David D. Huff, Brian J. Burke, Richard D. Brodeur, Jarrod A. Santora, John C. Field, Kate Richerson, Nathan J. Mantua, Kurt L. Fresh, Michelle M. McClure, William H. Satterthwaite, Forbes Darby, Su J. Kim, Richard W. Zabel, Steven T. Lindley   +14 more
doaj   +1 more source

Datasets and approaches for the estimation of rainfall erosivity over Italy: A comprehensive comparison study and a new method

Journal of Hydrology: Regional Studies, 2021
The paper considers a methodology to assess rainfall erosivity in Italy for the recent decades (1981–2010), building on datasets and materials freely available, such as those included within the Climate Data Store (CDS) of the Copernicus Climate Change ...
Roberta Padulano, Guido Rianna, Monia Santini   +2 more
doaj   +1 more source

Tangled ecosystem models: the temptation of siren songs and silence

Scientia Marina, 2012
At a meeting on marine ecosystem modelling held in Barcelona in November 2010, a wide range of tools were introduced by their developers. An officer of the European Commission was invited to the meeting as a key client of these tools, and he severely ...
Javier Ruiz, Sakari Kuikka
doaj   +1 more source

Uncertainty Management in Coupled Physical-Biological Lower Trophic Level Ocean Ecosystem Models [PDF]

Oceanography, 2013
Lower trophic level (LTL) ocean ecosystem models are important tools for understanding ocean biogeochemical variability and its role in Earth's climate system.
Ralph F. Milliff, Jerome Fiechter, William B. Leeds, Radu Herbei, Christopher K. Wikle, Mevin B. Hooten, Andrew M. Moore, Thomas M. Powell, Jeremiah Brown   +8 more
doaj   +1 more source

Data Ecosystem Business Models

Journal of Business Models, 2022
Purpose: Organizations evolve from using and governing data internally towards the exchange of data in multi-organizational data ecosystems. The purpose of this research is to determine a business model framework for actors operating in and/or entering ...
Ruben D'Hauwers, Nils Walravens, Pieter Ballon   +2 more
doaj   +1 more source