|WORLD METEOROLOGICAL ORGANIZATION||
|Explanation of the criteria for classification and numbering of components||
|Explanation of the dates on the component's description|
HYMOS 4.0: INFORMATION SYSTEM FOR WATER AND ENVIRONMENT
1. Purpose and objectives
HYMOS is a state-of-the-art information system developed for water
resources authorities, water boards, hydrometeorological services and other organizations with responsibilities in monitoring and information
HYMOS is comprehensive, well tuned and easy to use. The graphical and map-based user interface offers a pleasant and efficient working environment. The system facilitates processing of a wide range of water- related data. Fields of application include surface and groundwater hydrology; meteorology; water quality and ecology; and water resources management.
The HYMOS database is time series oriented with common facilities for spatial analysis. Exchange of data between HYMOS and most GISs is easy and user friendly.
Validation and completion- HYMOS offers a wide range of tabular,
graphical, computational and statistical validation techniques among which: tabulation of series and flagging of outliers; plotting of time series;
relation curves and double mass analysis; near-neighbour checks and series
Various options are available for series completion. Among these are interpolation techniques that use series relations derived with regression techniques or spatial relations. Much emphasis has been given to facilities for administration of the data processing steps and data qualification features. The latter include assignment of labels to individual data indicating the source (for example original or corrected) and reliability of data.
Analysis of meteorological data - Meteorological data like rainfall, snow depth, wind speed and radiation can be processed with HYMOS. Typical analyses are the computation of catchment rainfall (for example based on Thiessen polygons) and evapotranspiration using a range of methods including Penman with or without FAO-correction, pan evaporation, Christiansen, radiation, Makkink, Jensen-Haise, Blaney-Criddle and the mass transfer method.
Flow measurements and stage-discharge analysis - The stage-discharge analysis options include the elaboration and validation of current metering
data, the computation and validation of discharge rating curves and the
extension of rating curves. Rating curves can be represented by parabolic
Rainfall-runoff simulation - HYMOS includes the Sacramento rainfall-runoff model, which is a well known and widely used conceptual hydrological model. Other hydrological, hydrodynamic or environmental models can be easily linked to the system when required.
Statistical and time series analysis - A statistical package is
available covering: computation of basic statistical parameters; fitting
distributions including normal, log-normal, various Pearson types, log-Pearson, Raleigh, exponential, various Goodrich extreme types, Pareto and
P.O.T.; data generation; correlogram and spectral analysis; range and run analysis; computation of frequency and duration curves; polynomial,
multiple and step-wise regression analysis; time series analysis, e.g.
The HYMOS data editor allows user-friendly entry and editing of data. Monitoring network information and time series data can be entered
manually, exchanged with spreadsheets and databases by using the clipboard or imported from file. Data from recording monitoring stations can be
HYMOS has a powerful graph server and standard templates for the
graphical output of all analysis modules. The flexible graph server allows
the user to easily tailor graph layouts to individual requirements. A wide
range of formatted tables can be generated by HYMOS for presentation in
5. Operational requirements and restrictions
HYMOS runs on stand-alone computers as well as in a network System.
HYMOS is designed for the WINDOWS 95 and WINDOWS NT operating systems. The
minimum computer configuration is a 32 Mb RAM and a 90 MHz Pentium
6. Form of presentation
HYMOS is available on CD or 3.5 inch diskettes and supplied with a
comprehensive User Guide and Tutorial in English.
7. Operational experience
HYMOS is used worldwide in over 30 countries by water authorities,
consultants, research institutes and universities. Feedback from users all
over the world during the more than 20 years of its existence has allowed
for development of HYMOS into an efficient, flexible and multi-functional
8. Originator and technical support
10. Conditions on use
The use of HYMOS is subject to a License Agreement at commercial rates. Discounts are available for purely educational use.
|(First entered:17 MAY 93||
Last updated: 13 AUG 99)