The work done on the systematization of water molecule absorption cross-sections in W@DIS information system is reviewed. The collection of the water molecule spectral functions, GrafOnto system for working with collections of spectral function plots, and basic plot properties are briefly described. Examples of representations of different plot types for water vapor spectral functions are given.
A prototype of an information computer system for decision making support is described. The system is based on a simple 1D model of non-stationary thermal conductivity for the calculation of detailed temperature profiles from the permafrost depth. Numerical forecast data on the temperature near the Earth's surface from the databank of IMCES SB RAS are used as boundary conditions. An approach to the correct choice of climatic and meteorological quantities from the databank during the solution of applied climatic problems is considered separately. Incorrectness is due to semantic uncertainty, both of data in the databank and in the intensional of input data required for solution of applied problems. For this choice, we suggested to use the formalized taxonomy of WMO meteorological parameters in the form of OWLontology. A version of this ontology is presented, which is used for the work with the databank of IMCES SB RAS and solution of a number of some applied problems. Output data (numerical simulation results) are represented in the information computer system in the form of an ontological knowledge base, used for the decision making support.
The first version of a primitive OWL-ontology of collections climate and meteorological data of Institute of Monitoring of Climatic and Ecological Systems SB RAS is presented. The ontology is a component of expert and decision support systems intended for quick search for climate and meteorological data required for solution of a certain class of applied problems.
The current status of the W@DIS information system used for the systematization of spectroscopic data, including rovibronic transitions and energy levels, and data sources is reviewed, where the abbreviation W@DIS stands for Water Internet @ccesible Distributed Information System. Functionalities of W@DIS are outlined. The primary emphasis of W@DIS is on properties of data sources characterizing data quality. Several examples describe the interfaces used to create molecular spectral line lists and representation of binary relations between data sources and typical individuals of the ontology of information resources, states and transitions. The discussion employs the water molecule as an example.
Problems underlying a systematization of spectral data on the methanol molecule are formulated. Data on the energy levels and vacuum wavenumbers acquired from the published literature are presented in the form of information sources imported into the W@DIS information system. Sets of quantum numbers and labels used to describe the CH3OH molecular states are analyzed. The set of labels is different from universally accepted sets. A system of importing the data sources into W@DIS is outlined. The structure of databases characterizing transitions in an isolated CH3OH molecule is introduced and a digital library of the relevant published literature is discussed. A brief description is given of an imported data quality analysis and representation of the results obtained in the form of ontologies for subsequent computer processing.
An ontological description of molecular states and transitions for quantitative spectroscopy is given wherein states and transitions with certain quantum numbers are characterized by all published values of the physical quantities related to six spectroscopic tasks. Sets of statements appearing in the description of states and transitions are examined, and the number of statements employed in descriptions of different types is estimated.
The paper presents a description of properties of published spectral data on spectral lines' parameters of sulfur dioxide
molecule and its isotopologues. These data were acquired from more than 150 publications for a period of 50 years. Data
properties as well as data sources classification according to validity and trust criteria are presented in a form of an
ontological knowledge base on information resources. Data source properties values are computed during the assessment
of validity and trust1. Published ro-vibrational transitions, energy levels, spectral lines' parameters, knowledge base on
information resources of sulfur dioxide molecule and its isotopologues are available in the Internet accessible
information system W@DIS (http://wadis.saga.iao.ru/).
Our research into generation of a set of absorption cross sections of atmospheric molecules is reviewed briefly. Particular emphasis is placed on a description of a software toolkit for building information objects that characterize molecules and weakly bound molecular complexes, an application that provides the import and export of the absorption cross sections and representation of metadata and ontolology of information resources collected in a set.
This is a continuation of a series of papers on the systematization of spectroscopic information on a number of
atmospheric molecules (H2O , H2S , NH3 , CO2 , etc). The purpose of this work is to develop a
database and a knowledge base of phospine isotopologues. The data imported from publications are validated.
The technical aspect of the systematization implies its representation in the form of ontology (logical theory)
that provides an automatic check for the consistency of classes and class attribution of individuals.
Individuals in the knowledge base describe the properties of the published spectral line parameters.