A palaeoenvironmental reconstruction of the Middle Jurassic of Sardinia (Italy) based on integrated palaeobotanical, palynological and lithofacies data assessment

During the Jurassic, Sardinia was close to continental Europe. Emerged lands started from a single island forming in time a progressively sinking archipelago. This complex palaeogeographic situation gave origin to a diverse landscape with a variety of habitats. Collection- and literature-based palaeobotanical, palynological and lithofacies studies were carried out on the Genna Selole Formation for palaeoenvironmental interpretations. They evidence a generally warm and humid climate, affected occasionally by drier periods. Several distinct ecosystems can be discerned in this climate, including alluvial fans with braided streams (Laconi-Gadoni lithofacies), paralic swamps and coasts (Nurri-Escalaplano lithofacies), and lagoons and shallow marine environments (Ussassai-Perdasdefogu lithofacies). The non-marine environments were covered by extensive lowland and a reduced coastal and tidally influenced environment. Both the river and the upland/hinterland environments are of limited impact for the reconstruction. The difference between the composition of the palynological and palaeobotanical associations evidence the discrepancies obtained using only one of those proxies. The macroremains reflect the local palaeoenvironments better, although subjected to a transport bias (e.g. missing upland elements and delicate organs), whereas the palynomorphs permit to reconstruct the regional palaeoclimate. Considering that the flora of Sardinia is the southernmost of all Middle Jurassic European floras, this multidisciplinary study increases our understanding of the terrestrial environments during that period of time

Online monitoring of 1700 MW wind capacity in a utility supply area

Based on long-term wind and power measurements made on wind energy converters (WECs) in the framework of the "250 MW Wind" programme, a simulation model will be presented, which ensures the calculation of the total wind power simultaneously fed-in to any supply area. The statistical analysis of the wind power time series improves the knowledge of the time behaviour of wind power supply. This allows the online recording of the total wind power fed into supply areas by extrapolation from power levels measured online at selected wind farms

Wissenschaftliches Mess- und Evaluierungsprogramm (WMEP) zum Breitentest '250 MW Wind'. Phase 1. Abschlussbericht. Bd. 1

The presented Final Report (3 volumes) describes the works carried out during Phase I (01.01.1990-30.06.1992) of the Scientific Measurement and Evaluation Programme in the '250 MW Wind' Programme and their results. In the middle of the year 1992, WMEP included approx. 550 WEC's representing an installed capacity of approx. 91 MW. At the end of this project phase the essential building-up works could be finished. The achieved status of the remote measurement network now allows for handling essential topics of the WMEP basic evaluation (e.g. local/regional wind conditions). At the end of the project phase furthermore the data achieved in WMEP were made accessible for external users, e.g. manufacturers, WEC owners, utilities and research institutes. The so far achieved project results were already published in 'Annual Reports' 1990 and 1991; the 'Annual report' 1992 respectively, which is to be published by middle of 1993. (orig.)Der vorliegende Abschlussbericht (3 Baende) beschreibt die ausgefuehrten Arbeiten und Ergebnisse der 1. Durchfuehrungsphase (01.01.1990-30.06.1992) des Wissenschaftlichen Mess- und Evaluierungsprogramms (WMEP) zur Foerdermassnahme '250 MW-Wind'. Zur Jahresmitte 1992 erreichte das WMEP einen Umfang von ca. 550 WKA mit ca. 91 MW installierter Leistung. Mit Ende dieser Projektphase konnten die wesentlichen Aufbauarbeiten im WMEP abgeschlossen werden. Mit dem bereits erreichten Ausbaugrad des Fernmessnetzes koennen nunmehr wichtige Themenbereiche der WMEP-Basisauswertung bearbeitet (lokale/regionale Windverhaeltnisse) bzw. in wesentlichen Punkten ergaenzt werden. Zum Ende der Projektphase wurde weiterhin damit begonnen, die im WMEP gewonnenen Daten ueber eine spezielle Benutzerdatenbank auch externen Nutzern, z.B. WKA-Herstellern, -Betreibern, EVU und anderen Forschungseinrichtungen, zugaenglich zu machen. Die bisherigen Projektergebnisse wurden mit den 'Jahresauswertungen' 1990 und 1991 bereits veroeffentlicht bzw. werden mit der 'Jahresauswertung' 1992 bis Mitte 1993 vorliegen. (orig.)Published in three separate volumesSIGLEAvailable from TIB Hannover: F97B159+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Forschung und Technologie (BMFT), Bonn (Germany)DEGerman

Wissenschaftliches Mess- und Evaluierungsprogramm (WMEP) zum Breitentest '250 MW Wind'. Phase 2. Bd. 1 Abschlussbericht

SIGLEAvailable from TIB Hannover: F96B1905+a / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman