Institution
Bavarian Academy of Sciences and Humanities
Education•Munich, Germany•
About: Bavarian Academy of Sciences and Humanities is a education organization based out in Munich, Germany. It is known for research contribution in the topics: Glacier & Glacier mass balance. The organization has 125 authors who have published 217 publications receiving 5969 citations.
Topics: Glacier, Glacier mass balance, Ice sheet, Snow, Meltwater
Papers published on a yearly basis
Papers
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Commonwealth Scientific and Industrial Research Organisation1, Rutgers University2, Heidelberg Institute for Theoretical Studies3, University of Jena4, University of Bonn5, University of Vienna6, Naturhistorisches Museum7, University of Tsukuba8, Landcare Research9, Johns Hopkins University10, University of Hamburg11, Ehime University12, Florida Museum of Natural History13, Staatliches Museum für Naturkunde Stuttgart14, National Evolutionary Synthesis Center15, Australian National University16, Macquarie University17, American Museum of Natural History18, University of Memphis19, University of Guadalajara20, Bavarian Academy of Sciences and Humanities21, Natural History Museum22, Karlsruhe Institute of Technology23, California Academy of Sciences24, South China Agricultural University25, North Carolina State University26, Hokkaido University27
TL;DR: The phylogeny of all major insect lineages reveals how and when insects diversified and provides a comprehensive reliable scaffold for future comparative analyses of evolutionary innovations among insects.
Abstract: Insects are the most speciose group of animals, but the phylogenetic relationships of many major lineages remain unresolved. We inferred the phylogeny of insects from 1478 protein-coding genes. Phylogenomic analyses of nucleotide and amino acid sequences, with site-specific nucleotide or domain-specific amino acid substitution models, produced statistically robust and congruent results resolving previously controversial phylogenetic relations hips. We dated the origin of insects to the Early Ordovician [~479 million years ago (Ma)], of insect flight to the Early Devonian (~406 Ma), of major extant lineages to the Mississippian (~345 Ma), and the major diversification of holometabolous insects to the Early Cretaceous. Our phylogenomic study provides a comprehensive reliable scaffold for future comparative analyses of evolutionary innovations among insects.
1,998 citations
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University of Zurich1, University of Fribourg2, International Centre for Integrated Mountain Development3, Norwegian University of Life Sciences4, University of Oslo5, University of California, San Diego6, Stockholm University7, Bavarian Academy of Sciences and Humanities8, Central Institution for Meteorology and Geodynamics9, Austrian Academy of Sciences10, Norwegian Water Resources and Energy Directorate11
TL;DR: This article proposed a framework for reanalysing glacier mass balance series that includes conceptual and statistical toolsets for assessment of random and systematic errors, as well as for validation and calibration of the glaciological with the geodetic balance results.
Abstract: . Glacier-wide mass balance has been measured for more than sixty years and is widely used as an indicator of climate change and to assess the glacier contribution to runoff and sea level rise. Until recently, comprehensive uncertainty assessments have rarely been carried out and mass balance data have often been applied using rough error estimation or without consideration of errors. In this study, we propose a framework for reanalysing glacier mass balance series that includes conceptual and statistical toolsets for assessment of random and systematic errors, as well as for validation and calibration (if necessary) of the glaciological with the geodetic balance results. We demonstrate the usefulness and limitations of the proposed scheme, drawing on an analysis that comprises over 50 recording periods for a dozen glaciers, and we make recommendations to investigators and users of glacier mass balance data. Reanalysing glacier mass balance series needs to become a standard procedure for every monitoring programme to improve data quality, including reliable uncertainty estimates.
226 citations
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TL;DR: In this article, the authors investigated the ice ablation and its relations with debris thermal properties and meteorological conditions on Baltoro glacier up to about 5000 m and within a dedicated test field were combined with meteorological data from two automatic weather stations located at Urdukas (4022 m a.s.l.).
Abstract: During the recent Italian expedition 'K2 2004 - 50 years later' (June-July 2004) on Baltoro glacier, Karakoram, Pakistan, glaciological field experiments were carried out on the debris-covered area of this high-elevation glacier. The aim was to investigate the ice ablation and its relations with debris thermal properties and meteorological conditions. Ablation measurements along the glacier up to about 5000 m and within a dedicated test field were combined with meteorological data from two automatic weather stations located at Urdukas (4022 m a.s.l.) and at K2 Base Camp (5033 m a.s.l.). In addition, temperature measurements of the debris cover at different depth levels along the glacier allowed the calculation of debris surface temperature and of the debris thermal resistance (R). Using the air temperature, the local mean lapse rate (0.00758 Cm -1 ) and the measured ablation, the degree-day factors (K) at different locations on the glacier were calculated. The ice ablation rates were related to debris thickness and elevation. They are typically on the order of 4 cm d -1 during the observation period. However, it was found that the surface topography (slope, aspect) has an influence on the total ablation similar to that of the debris thickness. Thermal resistance of the debris cover and its distribution over the glacier were estimated. Finally, a best-guess estimate of the total meltwater production was calculated from available climate data.
186 citations
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TL;DR: This work extracts Raman spectral signatures by means of information measures to identify cell components such as the nucleus, the endoplasmic reticulum, the Golgi apparatus, and mitochondria and generates representations equivalent to conventional (immuno)fluorescence images with more than three cell components at a time.
160 citations
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TL;DR: The RTopo-2 data set as discussed by the authors provides consistent maps of global ocean bathymetry, upper and lower ice surface topographies, and global surface height on a spherical grid with 30'arcsec grid spacing.
Abstract: . The ocean plays an important role in modulating the mass balance of the polar ice sheets by interacting with the ice shelves in Antarctica and with the marine-terminating outlet glaciers in Greenland. Given that the flux of warm water onto the continental shelf and into the sub-ice cavities is steered by complex bathymetry, a detailed topography data set is an essential ingredient for models that address ice–ocean interaction. We followed the spirit of the global RTopo-1 data set and compiled consistent maps of global ocean bathymetry, upper and lower ice surface topographies, and global surface height on a spherical grid with now 30 arcsec grid spacing. For this new data set, called RTopo-2, we used the General Bathymetric Chart of the Oceans (GEBCO_2014) as the backbone and added the International Bathymetric Chart of the Arctic Ocean version 3 (IBCAOv3) and the International Bathymetric Chart of the Southern Ocean (IBCSO) version 1. While RTopo-1 primarily aimed at a good and consistent representation of the Antarctic ice sheet, ice shelves, and sub-ice cavities, RTopo-2 now also contains ice topographies of the Greenland ice sheet and outlet glaciers. In particular, we aimed at a good representation of the fjord and shelf bathymetry surrounding the Greenland continent. We modified data from earlier gridded products in the areas of Petermann Glacier, Hagen Brae, and Sermilik Fjord, assuming that sub-ice and fjord bathymetries roughly follow plausible Last Glacial Maximum ice flow patterns. For the continental shelf off Northeast Greenland and the floating ice tongue of Nioghalvfjerdsfjorden Glacier at about 79° N, we incorporated a high-resolution digital bathymetry model considering original multibeam survey data for the region. Radar data for surface topographies of the floating ice tongues of Nioghalvfjerdsfjorden Glacier and Zachariae Isstrom have been obtained from the data centres of Technical University of Denmark (DTU), Operation Icebridge (NASA/NSF), and Alfred Wegener Institute (AWI). For the Antarctic ice sheet/ice shelves, RTopo-2 largely relies on the Bedmap-2 product but applies corrections for the geometry of Getz, Abbot, and Fimbul ice shelf cavities. The data set is available in full and in regional subsets in NetCDF format from the PANGAEA database at doi:10.1594/PANGAEA.856844 .
148 citations
Authors
Showing all 129 results
Name | H-index | Papers | Citations |
---|---|---|---|
Michael Brenner | 76 | 564 | 22010 |
Rudolf Gross | 68 | 532 | 17739 |
Michael Schmidt | 62 | 922 | 22572 |
Christoph Mayer | 39 | 213 | 4772 |
Matthias Opel | 38 | 140 | 5333 |
Matthias Althammer | 33 | 100 | 5355 |
Astrid Lambrecht | 24 | 46 | 3036 |
Wolfgang Bosch | 22 | 213 | 2517 |
Rudi Hackl | 22 | 79 | 1948 |
Denise Dettmering | 20 | 129 | 1612 |
Jan Boehm | 20 | 76 | 1768 |
Florian Seitz | 18 | 123 | 1194 |
Reinhard Drews | 18 | 42 | 1120 |
Detlef Angermann | 18 | 140 | 1807 |
Ferdinand Jamitzky | 18 | 36 | 1549 |