ALBERT

All Library Books, journals and Electronic Records Telegrafenberg

X
feed icon rss

Ihre E-Mail wurde erfolgreich gesendet. Bitte prüfen Sie Ihren Maileingang.

Leider ist ein Fehler beim E-Mail-Versand aufgetreten. Bitte versuchen Sie es erneut.

Vorgang fortführen?

Exportieren
Filter
Sammlung
Schlagwörter
Verlag/Herausgeber
Sprache
Erscheinungszeitraum
  • 1
    facet.materialart.
    Unbekannt
    Helicopter-borne RGB orthomosaics and photogrammetric digital elevation models from the MOSAiC Expedition (2023)
    Springer Nature
    In:  EPIC3Scientific Data, Springer Nature, 10(1), pp. 426-426, ISSN: 2052-4463
    Details
    Publikationsdatum: 2024-05-01
    Beschreibung: The Multidisciplinary Drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition took place between October 2019 and September 2020 giving the rare opportunity to monitor sea-ice properties over a full annual cycle. Here we present 24 high-resolution orthomosaics and 14 photogrammetric digital elevation models of the sea-ice surface around the icebreaker RV Polarstern between March and September 2020. The dataset is based on 〉34.000 images acquired by a helicopter-borne optical camera system with survey flights covering areas between 1.8 and 96.5 km2 around the vessel. Depending on the flight pattern and altitude of the helicopter, ground resolutions of the orthomosaics range between 0.03 and 0.5 m. By combining the photogrammetric products with contemporaneously acquired airborne laser scanner reflectance measurements selected orthomosaics could be corrected for cloud shadows which facilitates their usage for sea-ice and melt pond classification algorithms. The presented dataset is a valuable data source for the interdisciplinary MOSAiC community building a temporal and spatially resolved baseline to accompany various remote sensing and in situ research projects.
    Repository-Name: EPIC Alfred Wegener Institut
    Materialart: Article , isiRev
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 2
    facet.materialart.
    Unbekannt
    C and K band microwave penetration into snow on sea ice studied with off-the-shelf tank radars (2023)
    Cambridge University Press (CUP)
    In:  EPIC3Annals of Glaciology, Cambridge University Press (CUP), pp. 1-11, ISSN: 0260-3055
    Details
    Publikationsdatum: 2024-05-01
    Beschreibung: Snow cover on sea ice poses a challenge for radar measurements as microwave penetration into snow is not yet fully understood. In this study, the aim is to investigate microwave penetration into snow on Arctic sea ice using commercial C (6 GHz) and K (26 GHz) band tank radars. Nadir-looking radar measurements collected at nine study locations over first-year and multiyear landfast sea ice in the Lincoln Sea in May 2018 are analysed together with detailed measurements of the physical properties of the snow cover to determine the dominant scattering horizons at both frequencies. They are evaluated for the feasibility to determine snow depth. The results show that in 39% of the measurements and only on first-year ice a major fraction of the C band radar backscatter originated closer to the snow–ice interface potentially enabling snow depth retrieval. At K band, 81% of the radar returns originated from the snow surface. Partly confirming the findings of previous studies, however, the analysis was potentially hampered by relatively warm air temperatures (up to −0.9◦C) during the study period as well as stratigraphic features and inconclusive microwave interaction with the saline basal layers found in the snow cover on first-year ice.
    Repository-Name: EPIC Alfred Wegener Institut
    Materialart: Article , isiRev
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 3
    facet.materialart.
    Unbekannt
    Fast Ice Thickness Distribution in the Western Ross Sea in Late Spring (2023)
    American Geophysical Union (AGU)
    In:  EPIC3Journal of Geophysical Research - Oceans, American Geophysical Union (AGU), 128(2), ISSN: 2169-9275
    Details
    Publikationsdatum: 2024-05-01
    Beschreibung: We present a 700 km airborne electromagnetic survey of late-spring fast ice and sub-ice platelet layer (SIPL) thickness distributions from McMurdo Sound to Cape Adare, providing a first-time inventory of fast ice thickness close to its annual maximum. The overall mode of the consolidated ice (including snow) thickness was 1.9 m, less than its mean of 2.6 ± 1.0 m. Our survey was partitioned into level and rough ice, and SIPL thickness was estimated under level ice. Although level ice, with a mode of 2.0 m and mean of 2.0 ± 0.6 m, was prevalent, rough ice occupied 41% of the transect by length, 50% by volume, and had a mode of 3.3 m and mean of 3.2 ± 1.2 m. The thickest 10% of rough ice was almost 6 m on average, inclusive of a 2 km segment thicker than 8 m in Moubray Bay. The thickest ice occurred predominantly along the northwestern Ross Sea, due to compaction against the coast. The adjacent pack ice was thinner (by ∼1 m) than the first-year fast ice. In Silverfish Bay, offshore Hells Gate Ice Shelf, New Harbor, and Granite Harbor, the SIPL transect volume was a significant fraction (0.30) of the consolidated ice volume. The thickest 10% of SIPLs averaged nearly 3 m thick, and near Hells Gate Ice Shelf the SIPL was almost 10 m thick, implying vigorous heat loss to the ocean (∼90 W m −2). We conclude that polynya-induced ice deformation and interaction with continental ice influence fast ice thickness in the western Ross Sea.
    Repository-Name: EPIC Alfred Wegener Institut
    Materialart: Article , isiRev
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 4
    facet.materialart.
    Unbekannt
    Lead fractions from SAR-derived sea ice divergence during MOSAiC (2024)
    Copernicus Publications
    In:  EPIC3The Cryosphere, Copernicus Publications, 18(3), pp. 1259-1285, ISSN: 1994-0416
    Details
    Publikationsdatum: 2024-05-01
    Beschreibung: Leads and fractures in sea ice play a crucial role in the heat and gas exchange between the ocean and atmosphere, impacting atmospheric, ecological, and oceanic processes. We estimated lead fractions from high-resolution divergence obtained from satellite synthetic aperture radar (SAR) data and evaluated them against existing lead products. We derived two new lead fraction products from divergence with a spatial resolution of 700mcalculated from daily Sentinel-1 images. For the first lead product, we advected and accumulated the lead fractions of individual time nstances. With those accumulated divergence-derived lead fractions, we comprehensively described the presence of up to 10 d old leads and analyzed their deformation history. For the second lead product, we used only divergence pixels that were identified as part of linear kinematic features (LKFs). Both new lead products accurately captured the formation of new leads with widths of up to a few hundred meters. We resented a Lagrangian time series of the divergence-based lead fractions along the drift of the Multidisciplinary drifting Observatory for the Study of Arctic Climate (MOSAiC) expedition in the central Arctic Ocean during winter 2019–2020. Lead activity was high in fall and spring, consistent with wind forcing and ice pack consolidation. At larger scales of 50–150 km around the MOSAiC expedition, lead activity on all scales was similar, but differences emerged at smaller scales (10 km). We compared our lead products with six others from satellite and airborne sources, including classified SAR, thermal infrared, microwave radiometer, and altimeter data. We found that the mean lead fractions varied by 1 order of magnitude across different lead products due to different physical lead and sea ice properties observed by the sensors and methodological factors such as spatial resolution. Thus, the choice of lead product should align with the specific application.
    Repository-Name: EPIC Alfred Wegener Institut
    Materialart: Article , isiRev
    Format: application/pdf
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 5
    facet.materialart.
    Unbekannt
    COESS: Seafloor seeps in Japan Sea. [Full Depth drone video] (2024)
    University of Tokyo, Atmosphere and Ocean Research Institute | Tokyo, Japan
    Details
    Publikationsdatum: 2024-05-01
    Beschreibung: Seafloor journey around methane seeps
    Beschreibung: Published
    Schlagwort(e): Methane ; Seeps ; COESS Project
    Repository-Name: AquaDocs
    Materialart: Images/Video
    Format: 1.46 mins
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 6
    facet.materialart.
    Unbekannt
    5 Passos para Incentivar a Cultura Oceânica nas Escolas (2024)
    Eco e Mare de Ciencia
    Details
    Publikationsdatum: 2024-05-01
    Beschreibung: O OCEANO QUE PRECISAMOS PARA O FUTURO QUE QUEREMOS Este é o slogan usado pelas Nações Unidas (ONU) para sensibilização em campanha da Década da ONU de Ciência Oceânica para o Desenvolvimento Sustentável, também co- nhecida como Década do Oceano. Você já ou- viu falar? A Década foi declarada pelas Nações Unidas em 2017 e está sendo implementada de 2021 até 2030, com o objetivo de ser um período que deixe o assunto sempre em evidência, ga- rantindo que a ciência oceânica possa apoiar os países na implementação da Agenda 2030 para o desenvolvimento sustentável. Sabe quando os profissionais da escola se únem antes do início das aulas (o famoso pla- nejamento anual), para fazer uma espécie de intensivão para alinhar as metas, estratégias e “deixar a casa em ordem”? É basicamente para isso que foi instituída a Década do Oceano, resumindo de forma bem simples. É um jeito simbólico de incentivar que toda a sociedade se una, durante dez anos, para promover a conservação do oceano e a gestão dos recursos naturais de zonas costeiras. Dessa forma, o planeta pode atingir os Objetivos de Desenvolvimento Sustentável (ODS). À primeira vista, isso tudo pode parecer um tema muito complexo e de competência ape- nas de governos e cúpulas internacionais. Mas, enquanto as decisões são tomadas em escala global, é no local, na nossa prática, que as ações tomam vida. As pequenas ações do cotidiano podem fazer uma grande diferença, especialmente quando falamos do ambien- te escolar, um dos espaços mais importantes para formar gerações de cidadãos e transfor- mar o mundo em um lugar melhor, não acha? Este ebook traz, resumidamente, um guia dos primeiros passos a se dar para incentivar a cul- tura oceânica na sua escola, dando uma mão para você e sua comunidade fazerem parte desse movimento.
    Beschreibung: Published
    Schlagwort(e): Ocean literacy ; Schools
    Repository-Name: AquaDocs
    Materialart: Other
    Format: 28pp.
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 7
    facet.materialart.
    Unbekannt
    Atlas Aquatica: Empowering Scuba Diving Ecotourism for Marine Conservation and the Blue Economy (2024)
    Atlas Aquatica Project
    Details
    Publikationsdatum: 2024-05-01
    Beschreibung: Healthy oceans are essential for life, but a mere 2.9% are fully protected1. The question then arises - why is ocean protection so challenging? Among the many reasons is the economic allure of extractive activities which poses a barrier to alleviating human pressure on ocean areas. Marine protected areas (MPAs), primarily designed to preserve biodiversity, are often rationalized through a business lens and are expected to yield revenue by increasing tourists’ willingness to pay. However, MPAs are not business entities and require a set of enabling conditions to successfully reach their goals. In a successful marine protected area, a unit increase in natural capital results in a rise in tourist revenue. We developed a bioeconomic model to show how fully protecting diving sites can significantly enhance nature’s recovery and lead to larger revenues for the scuba diving industry. In Mexico, scuba diving generates as much revenue as the fishing industry, yet only 7% of the country’s diving sites are fully protected. Globally, the scuba diving industry generates up to $20 billion dollars per year, even though about half of the diving sites worldwide lack protection. Using global experiences, we designed a five-step bottom-up approach that scuba diving operators can use to amplify marine protection. This approach could catalyze the creation of stricter or new fullyprotected areas designed to incorporate existing businesses - a significant departure from the traditional business framework. The Atlas Aquatica initiative advocates for a significant shift in narrative to stimulate broader acceptance of marine protection worldwide. We aim to contribute to a sustainable blue economic growth and the 30x30 conservation target by promoting the protection of diving sites globally
    Beschreibung: Scripps Institution of Oceanography and Centro para la Biodiversidad Marina y la Conservación A.C.
    Beschreibung: Published
    Beschreibung: Not Known
    Schlagwort(e): Blue Economy ; Marine ecosystems
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 18pp.
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 8
    facet.materialart.
    Unbekannt
    Oceano sem mistérios : Construindo cidades azuis (2024)
    Conexao Oceano
    Details
    Publikationsdatum: 2024-05-01
    Beschreibung: Cidade Azul é aquela que promove a sustentabilidade - social, ambiental, econômica, cultural e em sua governança - integrando políticas públicas e ações de cidadãos e instituições com o oceano. Portanto, ser uma cidade azul é fortalecer a relação da sustentabilidade com o oceano! E não importa a distância do mar, mesmo cidades do interior podem, e devem, ser azuis. A cultura oceânica é definida como o “entendimento da influência do oceano em nossas vidas e de nossas ações no oceano”, no qual “nós” corresponde a indivíduos e instituições, sejam elas públicas ou privadas. Ela é feita com todos os diferentes setores da sociedade, considerando suas especificidades locais e de forma integrada e colaborativa. É importante pontuar que este documento não traz uma fórmula única ou guia para uma Cidade Azul, pois cada cidade possui sua realidade social, cultural, ambiental, econômica e de infraestrutura política e administrativa. Este documento também não busca iniciar ou trazer novas demandas, mas sim inserir uma lente azul nas iniciativas, projetos e ações já realizadas ou em andamento, valorizando e ampliando o impacto destas ações. Aqui, você vai encontrar estratégias divididas em sete esferas principais - educação, economia azul sustentável, turismo, adaptação, água e saneamento, saúde e bem- estar e conservação - que podem ser adotadas de forma conjunta ou individualmente. Todas elas dialogam e ajudam seu município a alcançar os Objetivos de Desenvolvimento Sustentável da Agenda 2030, além de responder aos Desafios da Década da Ciência Oceânica para o Desenvolvimento Sustentável (2021 - 2030). Tomadores de decisão, servidores públicos dos municípios e Estados, este é um convite e oportunidade para discutir, adaptar e aplicar os caminhos aqui apresentados e, assim, construir sua cidade azul.
    Beschreibung: Published
    Beschreibung: Refereed
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 17pp.
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 9
    facet.materialart.
    Unbekannt
    Garotas STEM: Histórias que Inspiram 2022 (2024)
    British Council
    Details
    Publikationsdatum: 2024-05-01
    Beschreibung: A valorização de talentos e o empoderamento para indivíduos atingirem o seu potencial perpassa diferentes momentos da vida e abrange diferentes esferas sociais. O respeito à diversidade e a identificação de estratégias para facilitar acesso e oportunidade é um pilar fundamental para avançar num modelo de sociedade que visa o desenvolvimento sustentável nas esferas econômica, social, ambiental e humana. O programa Mulheres na Ciência (Women in STEM) do British Council surge como uma dessas estratégias, para contribuir com o universo de mulheres e meninas nas áreas STEM (sigla em inglês para ciência, tecnologia, engenharia e matemática)...
    Beschreibung: Published
    Beschreibung: Not Known
    Schlagwort(e): Women in science
    Repository-Name: AquaDocs
    Materialart: Report
    Format: 46pp.
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
  • 10
    facet.materialart.
    Unbekannt
    Oceanum Humanitatis Forums (2024)
    Academia Brasileira Da Vela Educativa
    Details
    Publikationsdatum: 2024-05-01
    Beschreibung: Unpublished
    Beschreibung: Not Known
    Repository-Name: AquaDocs
    Materialart: Conference Material
    Format: 12pp.
    Standort Signatur Erwartet Verfügbarkeit
    BibTip Andere fanden auch interessant ...
    ARTIKEL (OA)
Schließen ⊗
Diese Webseite nutzt Cookies und das Analyse-Tool Matomo. Weitere Informationen finden Sie hier...