Cel 1. Atmospheric dispersion model chain: A new and comprehensive real-time flow and dispersion model chain has been established in order to complement the existing RODOS near-range (0-20 km) dispersion model ADSTEP (a segmented Gaussian plume model), consisting of the following codes and modules (the number in parenthesis refer to the partner(s) providing code and documentation): PAD - a meteorological preprocessor provided by ENE MCF - a hilly terrain mass consistent wind model provided by GRS LINCOM - an extremely fast "wind over hilly terrain" wind model RIMPUFF - a real-time atmospheric dispersion puff model by Risø, including a new gamma dose module (Version R.3.0). 2. Meteorological data Local (on-site) weather stations This feature has been tested used extensively during the simulation of field experiments, but a need for a more general pre-preprocessor for such data of various quality has emerged, and will result in a proposal for study contract during the 4. Frame Work Program (EU). Experience has been gained with on-line data transfer from numerical weather forecast (NWF) centers: The operational weather forecast center at DMI have provided additional weather data for the period Sep 8-21 '93. Further, DMI is now daily transferring forecast data to the Danish Nuclear Emergency Center. DMI and Risø has furthermore assessed data transfer requirements for an operational RODOS center supplied by on-line numerical weather information on the European scale. The concept is found suitable for real-time on-line connection. 3. Experimental Extensive experimental evaluation have been undertaken by comparing the near range model results with data from atmospheric diffusion experiments, both regarding the near range models themselves and also by using the model chain to transfer dispersion to the long-range modules. 4. Data assimilation and backfitting activities The group has obtained experience with both backfitting and with data assimilation via different projects during the reporting contacting period: Data assimilation with RIMPUFF -Version UoL A version of RIMPUFF has been developed by RODOS partner UoL that accommodates data assimilation to real-time radiological observations based on Bayesian statistical methods. Source determination A version of RIMPUFF was used by Russian JSP-1 partners at SPA-TYPHOON, Obninsk for source term determination during the Tomsk -7 accident. 5. Uncertainty measures Presentation of uncertainty in long-range particle models In connection with the long-range particle model 3DRAW, one partner has demonstrated the use of color-coding the graphical displays of particle positions in the 3DRAW model according to uncertainty. Effects of orography(2) One partner has also estimated the enhancements in wet-deposition introduced by underlaying orography 6. Quality assurance and version control of code First RIMPUFF benchmark (ref RODOS DOC) A first RIMPUFF workshop on "Quality Assurance and Version Control" was held at Risø in January 1995. Version control of RODOS software reside by code authors to the extent possible. Automated software and code control Partners from IMPCOL have initiated an automatic procedure for quality assuring of RODOS codes. 7. RODOS(A) documentation Extensive documentation has been prepared, cf. 1) RODOS(A) included below, and 2) references included by individual partners in the included progress reports by partners.This is an umbrella proposal for future subgroup coordination of activities relating to atmospheric dispersion for the real-time decision support system: Development of a comprehensive decision-aiding system for off-site emergency management (Contract Bi7-045) In this work priority will be given to real-time dispersion and deposition assessments on the meso and regional-scale ranges with special considerations for providing the decision support system with codes consisting of user-friendly and interactive menus, interactive graphical systems, etc. In addition, new and interesting challenges for the real-time decision support system includes now and forecasting meteorology of winds and precipitation, and also "on-line" data handling and transfer of large quantities of prognostic met-data from operational and numerical weather forecast centres in Europe. Furthermore, it is envisioned to continue those activities initiated during phase I with respect to integration of model results with measurements (back-fitting and data assimilation), in addition to continuing efforts regarding appropriate model interpretation and clear presentation of results, - taking due account of the uncertainties in the assessment. Dziedzina nauki natural sciencesearth and related environmental sciencesatmospheric sciencesmeteorologynatural sciencescomputer and information sciencessoftware Program(-y) FP3-NFS 1 - Research and education programme (Euratom) in the field of nuclear fission safety, 1990-1994 Temat(-y) Data not available Zaproszenie do składania wniosków Data not available System finansowania CSC - Cost-sharing contracts Koordynator Risø National Laboratory Wkład UE Brak danych Adres 399,Frederiksborgvej 399 4000 Roskilde Dania Zobacz na mapie Koszt całkowity Brak danych Uczestnicy (7) Sortuj alfabetycznie Sortuj według wkładu UE Rozwiń wszystko Zwiń wszystko DANISH METEOROLOGICAL INSTITUTE Dania Wkład UE Brak danych Adres 100,Lyngbyvej 100 2100 KOEPENHAGEN Zobacz na mapie Koszt całkowity Brak danych Ente per le Nuove Tecnologie, l'Energia e l'Ambiente (ENEA) Włochy Wkład UE Brak danych Adres Via Vitaliano Brancati 48 00144 Roma Zobacz na mapie Koszt całkowity Brak danych GESELLSCHAFT FUER ANLAGEN- UND REAKTORSICHERHEIT (GRS) MBH Niemcy Wkład UE Brak danych Adres Schwertnergasse 1 50667 KOELN Zobacz na mapie Koszt całkowity Brak danych Imperial College of Science, Technology and Medicine Zjednoczone Królestwo Wkład UE Brak danych Adres 48 Princes Gardens SW7 2PE London Zobacz na mapie Koszt całkowity Brak danych NATIONAL CENTRE FOR SCIENTIFIC RESEARCH 'DEMOKRITOS' Grecja Wkład UE Brak danych Adres Terma Patriarchou Grigoriou 15310 ATHENS Zobacz na mapie Koszt całkowity Brak danych RISOE NATIONAL LABORATORY Dania Wkład UE Brak danych Adres 399,Frederiksborgvej 399 4000 ROSKILDE Zobacz na mapie Koszt całkowity Brak danych SWEDISH METEOROLOGICAL AND HYDROLOGICAL INSTITUTE Szwecja Wkład UE Brak danych Adres Folkborgsvägen 1 601 76 NORRKÖPING Zobacz na mapie Linki Strona internetowa Opens in new window Koszt całkowity Brak danych