ALBERT

Description: An initial design study of high-transonic-speed transport aircraft has been completed. Five different design concepts were developed. These included fixed swept wing, variable-sweep wing, delta wing, double-fuselage yawed-wing, and single-fuselage yawed-wing aircraft. The boomless supersonic design objectives of range=5560 Km (3000 nmi), payload-18 143 kg (40 000lb), Mach=1.2, and FAR Part 36 aircraft noise levels were achieved by the single-fuselage yawed-wing configuration with a gross weight of 211 828 Kg (467 000 lb). A noise level of 15 EPNdB below FAR Part 36 requirements was obtained with a gross weight increase to 226 796 Kg (500 000 lb). Although wing aeroelastic divergence was a primary design consideration for the yawed-wing concepts, the graphite-epoxy wings of this study were designed by critical gust and maneuver loads rather than by divergence requirements. The transonic nacelle drag is shown to be very sensitive to the nacelle installation. A six-degree-of-freedom dynamic stability analysis indicated that the control coordination and stability augmentation system would require more development than for a symmetrical airplane but is entirely feasible. A three-phase development plan is recommended to establish the full potential of the yawed-wing concept.

Description: Investigating past interglacial climatic and environmental changes can enhance our understanding of the natural rates and ranges of climate variability under interglacial boundary conditions. However, comparing past interglacial palaeoclimate records from different regions and archives is often complicated by differing and uncertain chronologies. For instance, the duration of the Last Interglacial in Europe is still controversial as southern European palaeoclimate records suggest a duration of ~16 500–18 000 years, while a length of only ~11 000 years in northern-central Europe was previously inferred from the analysis of partly annually laminated (varved) palaeolake sediments recovered at Bispingen, northern Germany. To resolve this discrepancy, we here present sediment microfacies, geochemistry and pollen data from a new sediment core from the Bispingen palaeolake sediment succession, covering the entire Last Interglacial (Eemian) and the earliest part of the Last Glacial (Weichselian). In particular, we provide evidence that the duration of the Last Interglacial at Bispingen must have been hitherto underestimated due to the investigation of an incomplete sediment core. Using microscopic varve counting and sedimentation rate estimates for non-varved sections on the new sediment core, we show that the Eemian in northern-central Europe probably lasted at least ~15 000 years, about 4000 years longer than previously thought. This new duration estimate is in much better agreement with results from southern European palaeoclimate records, clarifying the enigma of a steep trans-European vegetation gradient for several millennia at the end of the Last Interglacial.

Description: An increasing pressure from governing bodies and funding agencies to disseminate research data in an open and FAIR (Findable, Accessible, Interoperable, and Reusable) format has led to an increase in online research portals of varying quality. The task of constructing and maintaining such portals is challenging, especially when left to individuals with limited understanding of modern web architecture. For those starting out on this endeavour, an over-abundance of online advice, coupled with the rapid evolution of “latest technologies”, can be overwhelming. The inevitable uncertainty leads to technologically-isolated portals with limited interoperability that ultimately hinders the exchange of geoscientific information. To reduce uncertainty for new initiatives, Geoluminate (https://geoluminate.github.io/geoluminate/) – a new micro web framework – offers a simple but robust platform for the rapid creation and deployment of new geoscience research portals. The framework's simplicity ensures that even those with limited expertise in web development can create and maintain effective portals that exhibit consistency in both design and functionality. Geoluminate aims to foster interoperability, reliability and decentralization of geoscience portals by providing a consistent and stable foundation on which they are built. Leveraging existing features of the Python-based Django Web Framework, Geoluminate offers a comfortable learning curve for those already familiar with Python programming. On top of the feature-rich ecosystem of Django, Geoluminate offers additional features specifically tailored to the needs of geoscientific research portals. Geoluminate is highly-opinionated and comes “batteries included” so that, as a research community, the focus can remain on designing data models that fit specific community needs and less on tedious implementation details. Currently backed by the international geothermal community as part of the World Heat Flow Database Project (http://heatflow.world/project), Geoluminate is under active development at the GFZ German Research Centre for Geosciences in Potsdam. Under the guidance of the partner repository GFZ Data Services, all data models are intrinsically tied to existing standards of metadata collection (e.g. Datacite, IGSN, ROR, ORCID) such that data publishing is easily facilitated through established pathways. Geoluminate champions the principles of open science and collaborative knowledge dissemination. This poster presentation aims to showcase the practical implementation and benefits of Geoluminate in creating geoscience research portals that align with FAIR data principles. By fostering a community-centric approach, Geoluminate contributes to the democratization of data management, enabling researchers to actively shape and enhance the landscape of those same portals they likely utilize in their own research.

Description: Since its establishment in 1963, the International Heat Flow Commission (IHFC) has fostering and curating the Global Heat Flow Database (GHFDB). The dynamic nature of techniques and methodologies used in heat-flow density determination has necessitated regular updates to the database. Despite its widespread utility, the GHFDB faces challenges arising from variations in measurement techniques and data quality. Ongoing efforts are dedicated to overcoming these challenges, aiming to elevate the database's accuracy and reliability, thus solidifying its value within the scientific community. Multiple iterations of the GHFDB exist, primarily focused on characterizing the quality of individual heat-flow data points. However, the establishment of a new, authenticated GHFDB demanded the development of a fresh reporting standards for heat-flow data submitted to the IHFC. This new framework, derived from a collaborative global initiative, incorporates 62 metadata fields. This comprehensive approach became imperative due to the escalating volume of data and the diverse methodologies employed, necessitating a standardized scheme to evaluate the quality of heat-flow density determinations consistently. This update provides insights into the community-driven initiative initiated in 2021, targeting the reassessment of approximately 1,414 publications containing 73,033 global heat-flow data points. A noteworthy aspect of this initiative is the introduction of a novel quality scheme, unifying three independent criteria into a combined score. This score encompasses quantified uncertainty, methodological quality, and the status of overruling effects. The integration of these criteria facilitates a swift comparison of heat-flow data, instantly revealing any missing data or inadequately documented information. The introduction of this quality scheme empowers users to efficiently select reliable heat-flow values tailored to their specific research purposes.

Description: Terrestrial heat-flow determinations are crucial for understanding the thermal structure of the lithosphere. This study presents the results of a revision of the heat flow database in Türkiye contributing to the Global Heat Flow Data Assessment Project conducted by the International Heat Flow Commission (IHFC). The database includes 750 heat flow determinations reported in Türkiye between 1991 and 2023, and are reassessed according to the new IHFC specific structure documented by Fuchs et al. (2023). The data are gathered from the original literature and examined to ensure complete documentation of relevant metadata. The quality score is assigned based on the uncertainty, methodology and environmental disturbances. The new national wide database shows that heat-flow determinations are predominantly distributed in the western part of the country. However, the eastern part of the country has been poorly investigated to date. Despite numerous exploration-based studies conducted in the region concerning its substantial geothermal potential, a noteworthy portion of thermal data remains archived and is not accessible. The study reveals a significant demand for additional heat flow determinations to allow the drawing of a substantially revised and robust heat-flow map. However, the ongoing update of the Türkiye Heat Flow Database already allows a more transparent identification of areas with thermal anomalies.

Description: Recently, the International Heat Flow Commission (IHFC), the Task Force VIII of the International Lithosphere Program (ILP) and a global network of geoscientists have jointly developed new standards for the structure and the quality evaluation of heat flow-density data. Heat-flow data are important for understanding the temperature field at shallow depths to the lithospheric scale and thus are fundamental for geodynamic and tectonic processes as well as for geoenergy applications, like geothermal utilizations. It often builds an essential parameter for analytical or numerical models of subsurface thermal models. Since 2021, the Global Heat Flow Database is undergoing an intensive collaborative assessment considering the new defined standards. The new quality scheme, for the first time, will allow a joint classification of data in terms of (i) numerical uncertainty, (ii) methodological evaluation, and (iii) overriding or perturbing effects. On the example of the Global Heat Flow Database Release 2024, we present for a regional example how the assessment changes the data density and detail of information stored and how the new quality standards effect regional heat flow statistics.

Description: Im Weltwärmestrom-Datenbank Projekt wird eine neue Forschungsdateninfrastruktur für terrestrische Wärmestromdaten aufgebaut. Zentraler Aspekt ist die Einhaltung der FAIR und OPEN Datenpolitik. Unter anderem werden webbasierte fachbezogene Explorations- und Analysewerkzeuge angeboten, womit sich Nutzende bereits im Browser einen ersten Überblick über die Daten verschaffen können. Fokus dieser Präsentation ist die technische Umsetzung dieser Explorationswerkzeuge. Das Weltwärmestrom Datenbank Projekt setzt sich als Ziel eine neue Forschungsdateninfrastruktur (Web Portal) für terrestrische Wärmestromdaten zu entwickeln. Über die letzten Jahrzehnte ist eine umfangreiche, globale Datensammlung zum Thema Wärmestrom entstanden, welche über eine zentrale Anlaufstelle im Internet durch Einhaltung der FAIR und OPEN Datenpolitik zur Verfügung gestellt werden soll. Neben den Daten selbst, bietet die Anwendung eine integrierte Literaturdatenbank, einen internen Bereich für registrierte Nutzende, eine API und fachbezogene Explorationswerkzeuge, welche hier detaillierter beschrieben werden. Das Paper beschäftigt sich mit den Funktionalitäten des Web Portals, welche durch eine Anforderungsanalyse erfasst wurden, und beschreibt die für die Umsetzung verwendeten Komponenten. Die Explorationswerkzeuge sind hierbei ein separates Modul, welche in VueJS implementiert wurden und über npm in die Projekthomepage eingebunden werden. Als Input benötigt die Anwendung Punktdaten und eine Schema Datei für die Datenbeschreibung. Zentral für die Datenexploration ist ein auf MapLibre basierender Kartenviewer, der die georeferenzierten Punktdaten auf einer Weltkarte darstellt. Damit soll Nutzen-den bereits im Browser die Möglichkeit geboten werden, sich einen ersten Überblick über die Daten zu verschaffen.

Description: The Turkey heat flow database includes several research articles obtained from the catalogue of The Global Heat Flow Data Assessment Project conducted by the International Heat Flow Commission (IHFC; www.ihfc-iugg.org). The presented database contains 725 heat-flow determinations compiled from 9 different publications generated between 1991-2023 reported within Turkey. For the reporting and sorting of the database, the structure documented by Fuchs et al. (2023) is followed. Within this dataset, 98% of the entries represent continental heat-flow data (onshore), while the remaining 2% correspond to marine data (offshore). 88% of the reported heat flow values were obtained via direct temperature measurements, while the remaining data (12%) were estimated from indirect Curie depth temperature calculations.

Description: The data publication contains the compilation of global heat-flow data by the International Heat Flow Commission (IHFC; www.ihfc-iugg.org) of the International Association of Seismology and Physics of the Earth's Interior (IASPEI). The presented data update release 2024 contains data generated between 1939 and 2024 and constitutes the second intermediate update benefiting from the global collaborative assessment and quality control of the Global Heat Flow Database running since May 2021 (http://assessment.ihfc-iugg.org). The data release comprises new original heat-flow data published since April 2023 (the update 2023). It contains 91,182 heat-flow data from 1,586 publications. 57% of the reported heat-flow values are from the continental domain (n ~ 54,553), while the remaining 43% are located in the oceanic domain (n ~ 36,692).