--- _id: '978' abstract: - lang: eng text: The newly discovered topological crystalline insulators feature a complex band structure involving multiple Dirac cones, and are potentially highly tunable by external electric field, temperature or strain. Theoretically, it has been predicted that the various Dirac cones, which are offset in energy and momentum, might harbour vastly different orbital character. However, their orbital texture, which is of immense importance in determining a variety of a materialâ €™ s properties remains elusive. Here, we unveil the orbital texture of Pb 1â ̂'x Sn x Se, a prototypical topological crystalline insulator. By using Fourier-transform scanning tunnelling spectroscopy we measure the interference patterns produced by the scattering of surface-state electrons. We discover that the intensity and energy dependences of the Fourier transforms show distinct characteristics, which can be directly attributed to orbital effects. Our experiments reveal a complex band topology involving two Lifshitz transitions and establish the orbital nature of the Dirac bands, which could provide an alternative pathway towards future quantum applications. acknowledgement: V.M. gratefully acknowledges funding from the US Department of Energy, Scanned Probe Division under Award Number DE-FG02-12ER46880 for the primary support of I.Z. and Y.O. (experiments, data analysis and writing the paper) and NSF-ECCS-1232105 for the partial support of W.Z. and D.W. (data acquisition). Work at Massachusetts Institute of Technology is supported by US Department of Energy, Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under Award DE-SC0010526 (L.F.), and NSF DMR 1104498 (M.S.). H.L. acknowledges the Singapore National Research Foundation for support under NRF Award No. NRF-NRFF2013-03. The work at Northeastern University is supported by the US Department of Energy grant number DE-FG02-07ER46352, and benefited from Northeastern University’s Advanced Scientific Computation Center (ASCC), theory support at the Advanced Light Source, Berkeley and the allocation of time at the NERSC supercomputing centre through DOE grant number DE-AC02-05CH11231. W-F.T. and C-Y.H. were supported by the NSC in Taiwan under Grant No. 102-2112-M-110-009. W-F.T. also thanks C. Fang for useful discussions. Work at Princeton University is supported by the US National Science Foundation Grant, NSF-DMR-1006492. F.C. acknowledges the support provided by MOST-Taiwan under project number NSC-102-2119-M-002-004. author: - first_name: Ilija full_name: Zeljkovic, Ilija last_name: Zeljkovic - first_name: Yoshinori full_name: Okada, Yoshinori last_name: Okada - first_name: Chengyi full_name: Huang, Chengyi last_name: Huang - first_name: Raman full_name: Sankar, Raman last_name: Sankar - first_name: Daniel full_name: Walkup, Daniel last_name: Walkup - first_name: Wenwen full_name: Zhou, Wenwen last_name: Zhou - first_name: Maksym full_name: Maksym Serbyn id: 47809E7E-F248-11E8-B48F-1D18A9856A87 last_name: Serbyn orcid: 0000-0002-2399-5827 - first_name: Fangcheng full_name: Chou, Fangcheng last_name: Chou - first_name: Wei full_name: Tsai, Wei-Feng last_name: Tsai - first_name: Hsin full_name: Lin, Hsin last_name: Lin - first_name: Arun full_name: Bansil, Arun last_name: Bansil - first_name: Liang full_name: Fu, Liang last_name: Fu - first_name: Md full_name: Hasan, Md Z last_name: Hasan - first_name: Vidya full_name: Madhavan, Vidya last_name: Madhavan citation: ama: Zeljkovic I, Okada Y, Huang C, et al. Mapping the unconventional orbital texture in topological crystalline insulators. Nature Physics. 2014;10(8):572-577. doi:10.1038/nphys3012 apa: Zeljkovic, I., Okada, Y., Huang, C., Sankar, R., Walkup, D., Zhou, W., … Madhavan, V. (2014). Mapping the unconventional orbital texture in topological crystalline insulators. Nature Physics. Nature Publishing Group. https://doi.org/10.1038/nphys3012 chicago: Zeljkovic, Ilija, Yoshinori Okada, Chengyi Huang, Raman Sankar, Daniel Walkup, Wenwen Zhou, Maksym Serbyn, et al. “Mapping the Unconventional Orbital Texture in Topological Crystalline Insulators.” Nature Physics. Nature Publishing Group, 2014. https://doi.org/10.1038/nphys3012. ieee: I. Zeljkovic et al., “Mapping the unconventional orbital texture in topological crystalline insulators,” Nature Physics, vol. 10, no. 8. Nature Publishing Group, pp. 572–577, 2014. ista: Zeljkovic I, Okada Y, Huang C, Sankar R, Walkup D, Zhou W, Serbyn M, Chou F, Tsai W, Lin H, Bansil A, Fu L, Hasan M, Madhavan V. 2014. Mapping the unconventional orbital texture in topological crystalline insulators. Nature Physics. 10(8), 572–577. mla: Zeljkovic, Ilija, et al. “Mapping the Unconventional Orbital Texture in Topological Crystalline Insulators.” Nature Physics, vol. 10, no. 8, Nature Publishing Group, 2014, pp. 572–77, doi:10.1038/nphys3012. short: I. Zeljkovic, Y. Okada, C. Huang, R. Sankar, D. Walkup, W. Zhou, M. Serbyn, F. Chou, W. Tsai, H. Lin, A. Bansil, L. Fu, M. Hasan, V. Madhavan, Nature Physics 10 (2014) 572–577. date_created: 2018-12-11T11:49:30Z date_published: 2014-08-01T00:00:00Z date_updated: 2021-01-12T08:22:23Z day: '01' doi: 10.1038/nphys3012 extern: 1 intvolume: ' 10' issue: '8' main_file_link: - open_access: '1' url: https://arxiv.org/abs/1312.0164 month: '08' oa: 1 page: 572 - 577 publication: Nature Physics publication_status: published publisher: Nature Publishing Group publist_id: '6423' quality_controlled: 0 status: public title: Mapping the unconventional orbital texture in topological crystalline insulators type: journal_article volume: 10 year: '2014' ... --- _id: '979' abstract: - lang: eng text: In the recently discovered topological crystalline insulators SnTe and Pb1-xSnx(Te, Se), crystal symmetry and electronic topology intertwine to create topological surface states with many interesting features including Lifshitz transition, Van-Hove singularity, and fermion mass generation. These surface states are protected by mirror symmetry with respect to the (110) plane. In this work we present a comprehensive study of the effects of different mirror-symmetry-breaking perturbations on the (001) surface band structure. Pristine (001) surface states have four branches of Dirac fermions at low energy. We show that ferroelectric-type structural distortion generates a mass and gaps out some or all of these Dirac points, while strain shifts Dirac points in the Brillouin zone. An in-plane magnetic field leaves the surface state gapless, but introduces asymmetry between Dirac points. Finally, an out-of-plane magnetic field leads to discrete Landau levels. We show that the Landau level spectrum has an unusual pattern of degeneracy and interesting features due to the unique underlying band structure. This suggests that Landau level spectroscopy can detect and distinguish between different mechanisms of symmetry breaking in topological crystalline insulators. acknowledgement: We thank V. Madhavan and Y. Okada for related collaborations, and P. A. Lee for discussions. M.S. was supported by P. A. Lee via Grant No. NSF DMR 1104498. L.F. is supported by the DOE Office of Basic Energy Sciences, Division of Materials Sciences and Engineering under award DE-SC0010526. author: - first_name: Maksym full_name: Maksym Serbyn id: 47809E7E-F248-11E8-B48F-1D18A9856A87 last_name: Serbyn orcid: 0000-0002-2399-5827 - first_name: Liang full_name: Fu, Liang last_name: Fu citation: ama: Serbyn M, Fu L. Symmetry breaking and Landau quantization in topological crystalline insulators. Physical Review B - Condensed Matter and Materials Physics. 2014;90(3). doi:10.1103/PhysRevB.90.035402 apa: Serbyn, M., & Fu, L. (2014). Symmetry breaking and Landau quantization in topological crystalline insulators. Physical Review B - Condensed Matter and Materials Physics. American Physical Society. https://doi.org/10.1103/PhysRevB.90.035402 chicago: Serbyn, Maksym, and Liang Fu. “Symmetry Breaking and Landau Quantization in Topological Crystalline Insulators.” Physical Review B - Condensed Matter and Materials Physics. American Physical Society, 2014. https://doi.org/10.1103/PhysRevB.90.035402. ieee: M. Serbyn and L. Fu, “Symmetry breaking and Landau quantization in topological crystalline insulators,” Physical Review B - Condensed Matter and Materials Physics, vol. 90, no. 3. American Physical Society, 2014. ista: Serbyn M, Fu L. 2014. Symmetry breaking and Landau quantization in topological crystalline insulators. Physical Review B - Condensed Matter and Materials Physics. 90(3). mla: Serbyn, Maksym, and Liang Fu. “Symmetry Breaking and Landau Quantization in Topological Crystalline Insulators.” Physical Review B - Condensed Matter and Materials Physics, vol. 90, no. 3, American Physical Society, 2014, doi:10.1103/PhysRevB.90.035402. short: M. Serbyn, L. Fu, Physical Review B - Condensed Matter and Materials Physics 90 (2014). date_created: 2018-12-11T11:49:31Z date_published: 2014-07-03T00:00:00Z date_updated: 2021-01-12T08:22:23Z day: '03' doi: 10.1103/PhysRevB.90.035402 extern: 1 intvolume: ' 90' issue: '3' main_file_link: - open_access: '1' url: https://arxiv.org/abs/1403.8153 month: '07' oa: 1 publication: Physical Review B - Condensed Matter and Materials Physics publication_status: published publisher: American Physical Society publist_id: '6422' quality_controlled: 0 status: public title: Symmetry breaking and Landau quantization in topological crystalline insulators type: journal_article volume: 90 year: '2014' ... --- _id: '9931' abstract: - lang: eng text: Gene duplication is important in evolution, because it provides new raw material for evolutionary adaptations. Several existing hypotheses about the causes of duplicate retention and diversification differ in their emphasis on gene dosage, subfunctionalization, and neofunctionalization. Little experimental data exist on the relative importance of gene expression changes and changes in coding regions for the evolution of duplicate genes. Furthermore, we do not know how strongly the environment could affect this importance. To address these questions, we performed evolution experiments with the TEM-1 beta lactamase gene in Escherichia coli to study the initial stages of duplicate gene evolution in the laboratory. We mimicked tandem duplication by inserting two copies of the TEM-1 gene on the same plasmid. We then subjected these copies to repeated cycles of mutagenesis and selection in various environments that contained antibiotics in different combinations and concentrations. Our experiments showed that gene dosage is the most important factor in the initial stages of duplicate gene evolution, and overshadows the importance of point mutations in the coding region. acknowledgement: We thank the Functional Genomics Center Zurich for its service in generating sequencing data, M. Ackermann and E. Hayden for helpful discussions, A. de Visser for comments on earlier versions of this manuscript, and M. Moser for help with quantitative PCR. This work was supported by Swiss National Science Foundation (grant 315230–129708), as well as through the YeastX project of SystemsX.ch, and the University Priority Research Program in Systems Biology at the University of Zurich. RD acknowledges support from the Forschungskredit program of the University of Zurich. The authors declare no conflict of interest. article_processing_charge: No article_type: original author: - first_name: Riddhiman full_name: Dhar, Riddhiman last_name: Dhar - first_name: Tobias full_name: Bergmiller, Tobias id: 2C471CFA-F248-11E8-B48F-1D18A9856A87 last_name: Bergmiller orcid: 0000-0001-5396-4346 - first_name: Andreas full_name: Wagner, Andreas last_name: Wagner citation: ama: Dhar R, Bergmiller T, Wagner A. Increased gene dosage plays a predominant role in the initial stages of evolution of duplicate TEM-1 beta lactamase genes. Evolution. 2014;68(6):1775-1791. doi:10.1111/evo.12373 apa: Dhar, R., Bergmiller, T., & Wagner, A. (2014). Increased gene dosage plays a predominant role in the initial stages of evolution of duplicate TEM-1 beta lactamase genes. Evolution. Wiley. https://doi.org/10.1111/evo.12373 chicago: Dhar, Riddhiman, Tobias Bergmiller, and Andreas Wagner. “Increased Gene Dosage Plays a Predominant Role in the Initial Stages of Evolution of Duplicate TEM-1 Beta Lactamase Genes.” Evolution. Wiley, 2014. https://doi.org/10.1111/evo.12373. ieee: R. Dhar, T. Bergmiller, and A. Wagner, “Increased gene dosage plays a predominant role in the initial stages of evolution of duplicate TEM-1 beta lactamase genes,” Evolution, vol. 68, no. 6. Wiley, pp. 1775–1791, 2014. ista: Dhar R, Bergmiller T, Wagner A. 2014. Increased gene dosage plays a predominant role in the initial stages of evolution of duplicate TEM-1 beta lactamase genes. Evolution. 68(6), 1775–1791. mla: Dhar, Riddhiman, et al. “Increased Gene Dosage Plays a Predominant Role in the Initial Stages of Evolution of Duplicate TEM-1 Beta Lactamase Genes.” Evolution, vol. 68, no. 6, Wiley, 2014, pp. 1775–91, doi:10.1111/evo.12373. short: R. Dhar, T. Bergmiller, A. Wagner, Evolution 68 (2014) 1775–1791. date_created: 2021-08-17T09:03:09Z date_published: 2014-06-03T00:00:00Z date_updated: 2023-02-23T14:13:27Z day: '03' department: - _id: CaGu doi: 10.1111/evo.12373 external_id: pmid: - '24495000' intvolume: ' 68' issue: '6' language: - iso: eng month: '06' oa_version: None page: 1775-1791 pmid: 1 publication: Evolution publication_identifier: eissn: - 1558-5646 issn: - 0014-3820 publication_status: published publisher: Wiley quality_controlled: '1' related_material: record: - id: '9932' relation: research_data status: public scopus_import: '1' status: public title: Increased gene dosage plays a predominant role in the initial stages of evolution of duplicate TEM-1 beta lactamase genes type: journal_article user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf volume: 68 year: '2014' ... --- _id: '9932' abstract: - lang: eng text: Gene duplication is important in evolution, because it provides new raw material for evolutionary adaptations. Several existing hypotheses about the causes of duplicate retention and diversification differ in their emphasis on gene dosage, sub-functionalization, and neo-functionalization. Little experimental data exists on the relative importance of gene expression changes and changes in coding regions for the evolution of duplicate genes. Furthermore, we do not know how strongly the environment could affect this importance. To address these questions, we performed evolution experiments with the TEM-1 beta lactamase gene in E. coli to study the initial stages of duplicate gene evolution in the laboratory. We mimicked tandem duplication by inserting two copies of the TEM-1 gene on the same plasmid. We then subjected these copies to repeated cycles of mutagenesis and selection in various environments that contained antibiotics in different combinations and concentrations. Our experiments showed that gene dosage is the most important factor in the initial stages of duplicate gene evolution, and overshadows the importance of point mutations in the coding region. article_processing_charge: No author: - first_name: Riddhiman full_name: Dhar, Riddhiman last_name: Dhar - first_name: Tobias full_name: Bergmiller, Tobias id: 2C471CFA-F248-11E8-B48F-1D18A9856A87 last_name: Bergmiller orcid: 0000-0001-5396-4346 - first_name: Andreas full_name: Wagner, Andreas last_name: Wagner citation: ama: 'Dhar R, Bergmiller T, Wagner A. Data from: Increased gene dosage plays a predominant role in the initial stages of evolution of duplicate TEM-1 beta lactamase genes. 2014. doi:10.5061/dryad.jc402' apa: 'Dhar, R., Bergmiller, T., & Wagner, A. (2014). Data from: Increased gene dosage plays a predominant role in the initial stages of evolution of duplicate TEM-1 beta lactamase genes. Dryad. https://doi.org/10.5061/dryad.jc402' chicago: 'Dhar, Riddhiman, Tobias Bergmiller, and Andreas Wagner. “Data from: Increased Gene Dosage Plays a Predominant Role in the Initial Stages of Evolution of Duplicate TEM-1 Beta Lactamase Genes.” Dryad, 2014. https://doi.org/10.5061/dryad.jc402.' ieee: 'R. Dhar, T. Bergmiller, and A. Wagner, “Data from: Increased gene dosage plays a predominant role in the initial stages of evolution of duplicate TEM-1 beta lactamase genes.” Dryad, 2014.' ista: 'Dhar R, Bergmiller T, Wagner A. 2014. Data from: Increased gene dosage plays a predominant role in the initial stages of evolution of duplicate TEM-1 beta lactamase genes, Dryad, 10.5061/dryad.jc402.' mla: 'Dhar, Riddhiman, et al. Data from: Increased Gene Dosage Plays a Predominant Role in the Initial Stages of Evolution of Duplicate TEM-1 Beta Lactamase Genes. Dryad, 2014, doi:10.5061/dryad.jc402.' short: R. Dhar, T. Bergmiller, A. Wagner, (2014). date_created: 2021-08-17T09:11:40Z date_published: 2014-01-27T00:00:00Z date_updated: 2023-02-23T14:13:24Z day: '27' department: - _id: CaGu doi: 10.5061/dryad.jc402 main_file_link: - open_access: '1' url: https://doi.org/10.5061/dryad.jc402 month: '01' oa: 1 oa_version: Published Version publisher: Dryad related_material: record: - id: '9931' relation: used_in_publication status: public status: public title: 'Data from: Increased gene dosage plays a predominant role in the initial stages of evolution of duplicate TEM-1 beta lactamase genes' type: research_data_reference user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf year: '2014' ... --- _id: '12637' abstract: - lang: eng text: The performance of glaciohydrological models which simulate catchment response to climate variability depends to a large degree on the data used to force the models. The forcing data become increasingly important in high-elevation, glacierized catchments where the interplay between extreme topography, climate, and the cryosphere is complex. It is challenging to generate a reliable forcing data set that captures this spatial heterogeneity. In this paper, we analyze the results of a 1 year field campaign focusing on air temperature and precipitation observations in the Langtang valley in the Nepalese Himalayas. We use the observed time series to characterize both temperature lapse rates (LRs) and precipitation gradients (PGs). We study their spatial and temporal variability, and we attempt to identify possible controlling factors. We show that very clear LRs exist in the valley and that there are strong seasonal differences related to the water vapor content in the atmosphere. Results also show that the LRs are generally shallower than the commonly used environmental lapse rates. The analysis of the precipitation observations reveals that there is great variability in precipitation over short horizontal distances. A uniform valley wide PG cannot be established, and several scale-dependent mechanisms may explain our observations. We complete our analysis by showing the impact of the observed LRs and PGs on the outputs of the TOPKAPI-ETH glaciohydrological model. We conclude that LRs and PGs have a very large impact on the water balance composition and that short-term monitoring campaigns have the potential to improve model quality considerably. article_processing_charge: No article_type: original author: - first_name: W. W. full_name: Immerzeel, W. W. last_name: Immerzeel - first_name: L. full_name: Petersen, L. last_name: Petersen - first_name: S. full_name: Ragettli, S. last_name: Ragettli - first_name: Francesca full_name: Pellicciotti, Francesca id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70 last_name: Pellicciotti citation: ama: Immerzeel WW, Petersen L, Ragettli S, Pellicciotti F. The importance of observed gradients of air temperature and precipitation for modeling runoff from a glacierized watershed in the Nepalese Himalayas. Water Resources Research. 2014;50(3):2212-2226. doi:10.1002/2013wr014506 apa: Immerzeel, W. W., Petersen, L., Ragettli, S., & Pellicciotti, F. (2014). The importance of observed gradients of air temperature and precipitation for modeling runoff from a glacierized watershed in the Nepalese Himalayas. Water Resources Research. American Geophysical Union. https://doi.org/10.1002/2013wr014506 chicago: Immerzeel, W. W., L. Petersen, S. Ragettli, and Francesca Pellicciotti. “The Importance of Observed Gradients of Air Temperature and Precipitation for Modeling Runoff from a Glacierized Watershed in the Nepalese Himalayas.” Water Resources Research. American Geophysical Union, 2014. https://doi.org/10.1002/2013wr014506. ieee: W. W. Immerzeel, L. Petersen, S. Ragettli, and F. Pellicciotti, “The importance of observed gradients of air temperature and precipitation for modeling runoff from a glacierized watershed in the Nepalese Himalayas,” Water Resources Research, vol. 50, no. 3. American Geophysical Union, pp. 2212–2226, 2014. ista: Immerzeel WW, Petersen L, Ragettli S, Pellicciotti F. 2014. The importance of observed gradients of air temperature and precipitation for modeling runoff from a glacierized watershed in the Nepalese Himalayas. Water Resources Research. 50(3), 2212–2226. mla: Immerzeel, W. W., et al. “The Importance of Observed Gradients of Air Temperature and Precipitation for Modeling Runoff from a Glacierized Watershed in the Nepalese Himalayas.” Water Resources Research, vol. 50, no. 3, American Geophysical Union, 2014, pp. 2212–26, doi:10.1002/2013wr014506. short: W.W. Immerzeel, L. Petersen, S. Ragettli, F. Pellicciotti, Water Resources Research 50 (2014) 2212–2226. date_created: 2023-02-20T08:17:01Z date_published: 2014-03-01T00:00:00Z date_updated: 2023-02-24T08:28:23Z day: '01' doi: 10.1002/2013wr014506 extern: '1' intvolume: ' 50' issue: '3' keyword: - Water Science and Technology language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1002/2013WR014506 month: '03' oa: 1 oa_version: Published Version page: 2212-2226 publication: Water Resources Research publication_identifier: eissn: - 1944-7973 issn: - 0043-1397 publication_status: published publisher: American Geophysical Union quality_controlled: '1' scopus_import: '1' status: public title: The importance of observed gradients of air temperature and precipitation for modeling runoff from a glacierized watershed in the Nepalese Himalayas type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 50 year: '2014' ... --- _id: '12636' abstract: - lang: eng text: Himalayan glacier tongues are commonly debris covered and they are an important source of melt water. However, they remain relatively unstudied because of the inaccessibility of the terrain and the difficulties in field work caused by the thick debris mantles. Observations of debris-covered glaciers are therefore scarce and airborne remote sensing may bridge the gap between scarce field observations and coarse resolution space-borne remote sensing. In this study we deploy an Unmanned Aerial Vehicle (UAV) before and after the melt and monsoon season (May and October 2013) over the debris-covered tongue of the Lirung Glacier in Nepal. Based on stereo-imaging and the structure for motion algorithm we derive highly detailed ortho-mosaics and digital elevation models (DEMs), which we geometrically correct using differential GPS observations collected in the field. Based on DEM differencing and manual feature tracking we derive the mass loss and the surface velocity of the glacier at a high spatial accuracy. On average, mass loss is limited and the surface velocity is very small. However, the spatial variability of melt rates is very high, and ice cliffs and supra-glacial ponds show mass losses that can be an order of magnitude higher than the average. We suggest that future research should focus on the interaction between supra-glacial ponds, ice cliffs and englacial hydrology to further understand the dynamics of debris-covered glaciers. Finally, we conclude that UAV deployment has large potential in glaciology and it may revolutionize methods currently applied in studying glacier surface features. article_processing_charge: No article_type: original author: - first_name: W.W. full_name: Immerzeel, W.W. last_name: Immerzeel - first_name: P.D.A. full_name: Kraaijenbrink, P.D.A. last_name: Kraaijenbrink - first_name: J.M. full_name: Shea, J.M. last_name: Shea - first_name: A.B. full_name: Shrestha, A.B. last_name: Shrestha - first_name: Francesca full_name: Pellicciotti, Francesca id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70 last_name: Pellicciotti - first_name: M.F.P. full_name: Bierkens, M.F.P. last_name: Bierkens - first_name: S.M. full_name: de Jong, S.M. last_name: de Jong citation: ama: Immerzeel WW, Kraaijenbrink PDA, Shea JM, et al. High-resolution monitoring of Himalayan glacier dynamics using unmanned aerial vehicles. Remote Sensing of Environment. 2014;150(7):93-103. doi:10.1016/j.rse.2014.04.025 apa: Immerzeel, W. W., Kraaijenbrink, P. D. A., Shea, J. M., Shrestha, A. B., Pellicciotti, F., Bierkens, M. F. P., & de Jong, S. M. (2014). High-resolution monitoring of Himalayan glacier dynamics using unmanned aerial vehicles. Remote Sensing of Environment. Elsevier. https://doi.org/10.1016/j.rse.2014.04.025 chicago: Immerzeel, W.W., P.D.A. Kraaijenbrink, J.M. Shea, A.B. Shrestha, Francesca Pellicciotti, M.F.P. Bierkens, and S.M. de Jong. “High-Resolution Monitoring of Himalayan Glacier Dynamics Using Unmanned Aerial Vehicles.” Remote Sensing of Environment. Elsevier, 2014. https://doi.org/10.1016/j.rse.2014.04.025. ieee: W. W. Immerzeel et al., “High-resolution monitoring of Himalayan glacier dynamics using unmanned aerial vehicles,” Remote Sensing of Environment, vol. 150, no. 7. Elsevier, pp. 93–103, 2014. ista: Immerzeel WW, Kraaijenbrink PDA, Shea JM, Shrestha AB, Pellicciotti F, Bierkens MFP, de Jong SM. 2014. High-resolution monitoring of Himalayan glacier dynamics using unmanned aerial vehicles. Remote Sensing of Environment. 150(7), 93–103. mla: Immerzeel, W. W., et al. “High-Resolution Monitoring of Himalayan Glacier Dynamics Using Unmanned Aerial Vehicles.” Remote Sensing of Environment, vol. 150, no. 7, Elsevier, 2014, pp. 93–103, doi:10.1016/j.rse.2014.04.025. short: W.W. Immerzeel, P.D.A. Kraaijenbrink, J.M. Shea, A.B. Shrestha, F. Pellicciotti, M.F.P. Bierkens, S.M. de Jong, Remote Sensing of Environment 150 (2014) 93–103. date_created: 2023-02-20T08:16:56Z date_published: 2014-07-01T00:00:00Z date_updated: 2023-02-24T08:32:39Z day: '01' doi: 10.1016/j.rse.2014.04.025 extern: '1' intvolume: ' 150' issue: '7' keyword: - Computers in Earth Sciences - Geology - Soil Science language: - iso: eng month: '07' oa_version: None page: 93-103 publication: Remote Sensing of Environment publication_identifier: issn: - 0034-4257 publication_status: published publisher: Elsevier quality_controlled: '1' scopus_import: '1' status: public title: High-resolution monitoring of Himalayan glacier dynamics using unmanned aerial vehicles type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 150 year: '2014' ... --- _id: '12635' abstract: - lang: eng text: 'Switzerland is one of the countries with some of the longest and best glaciological data sets. Its glaciers and their changes in response to climate have been extensively investigated, and the number and quality of related studies are notable. However, a comprehensive review of glacier changes and their impact on the hydrology of glacierised catchments for Switzerland is missing and we use the opportunity provided by the EU-FP7 ACQWA project to review the current state of knowledge about past changes and future projections. We examine the type of models that have been applied to infer glacier evolution and identify knowledge gaps that should be addressed in future research in addition to those indicated in previous publications. Common characteristics in long-term series of projected future glacier runoff are an initial peak followed by a decline, associated with shifts in seasonality, earlier melt onset and reduced summer runoff. However, the quantitative predictions are difficult to compare, as studies differ in terms of model structure, calibration strategies, input data, temporal and spatial resolution as well as future scenarios used for impact studies. We identify two sources of uncertainties among those emerging from recent research, and use simulations over four glaciers to: i) quantify the importance of the correct extrapolation of air temperature, and ii) point at the key role played by debris cover in modulating glacier response.' article_processing_charge: No article_type: review author: - first_name: Francesca full_name: Pellicciotti, Francesca id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70 last_name: Pellicciotti - first_name: M. full_name: Carenzo, M. last_name: Carenzo - first_name: R. full_name: Bordoy, R. last_name: Bordoy - first_name: M. full_name: Stoffel, M. last_name: Stoffel citation: ama: 'Pellicciotti F, Carenzo M, Bordoy R, Stoffel M. Changes in glaciers in the Swiss Alps and impact on basin hydrology: Current state of the art and future research. Science of The Total Environment. 2014;493:1152-1170. doi:10.1016/j.scitotenv.2014.04.022' apa: 'Pellicciotti, F., Carenzo, M., Bordoy, R., & Stoffel, M. (2014). Changes in glaciers in the Swiss Alps and impact on basin hydrology: Current state of the art and future research. Science of The Total Environment. Elsevier. https://doi.org/10.1016/j.scitotenv.2014.04.022' chicago: 'Pellicciotti, Francesca, M. Carenzo, R. Bordoy, and M. Stoffel. “Changes in Glaciers in the Swiss Alps and Impact on Basin Hydrology: Current State of the Art and Future Research.” Science of The Total Environment. Elsevier, 2014. https://doi.org/10.1016/j.scitotenv.2014.04.022.' ieee: 'F. Pellicciotti, M. Carenzo, R. Bordoy, and M. Stoffel, “Changes in glaciers in the Swiss Alps and impact on basin hydrology: Current state of the art and future research,” Science of The Total Environment, vol. 493. Elsevier, pp. 1152–1170, 2014.' ista: 'Pellicciotti F, Carenzo M, Bordoy R, Stoffel M. 2014. Changes in glaciers in the Swiss Alps and impact on basin hydrology: Current state of the art and future research. Science of The Total Environment. 493, 1152–1170.' mla: 'Pellicciotti, Francesca, et al. “Changes in Glaciers in the Swiss Alps and Impact on Basin Hydrology: Current State of the Art and Future Research.” Science of The Total Environment, vol. 493, Elsevier, 2014, pp. 1152–70, doi:10.1016/j.scitotenv.2014.04.022.' short: F. Pellicciotti, M. Carenzo, R. Bordoy, M. Stoffel, Science of The Total Environment 493 (2014) 1152–1170. date_created: 2023-02-20T08:16:51Z date_published: 2014-09-15T00:00:00Z date_updated: 2023-02-24T08:36:04Z day: '15' doi: 10.1016/j.scitotenv.2014.04.022 extern: '1' intvolume: ' 493' keyword: - Pollution - Waste Management and Disposal - Environmental Chemistry - Environmental Engineering language: - iso: eng month: '09' oa_version: None page: 1152-1170 publication: Science of The Total Environment publication_identifier: issn: - 0048-9697 publication_status: published publisher: Elsevier quality_controlled: '1' scopus_import: '1' status: public title: 'Changes in glaciers in the Swiss Alps and impact on basin hydrology: Current state of the art and future research' type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 493 year: '2014' ... --- _id: '12632' abstract: - lang: eng text: We investigate the performance of five glacier melt models over a multi-decadal period in order to assess their ability to model future glacier response. The models range from a simple degree-day model, based solely on air temperature, to more-sophisticated models, including the full shortwave radiation balance. In addition to the empirical models, the performance of a physically based energy-balance (EB) model is examined. The melt models are coupled to an accumulation and a surface evolution model and applied in a distributed manner to Rhonegletscher, Switzerland, over the period 1929–2012 at hourly resolution. For calibration, seasonal mass-balance measurements (2006–12) are used. Decadal ice volume changes for six periods in the years 1929–2012 serve for model validation. Over the period 2006–12, there are almost no differences in performance between the models, except for EB, which is less consistent with observations, likely due to lack of meteorological in situ data. However, simulations over the long term (1929–2012) reveal that models which include a separate term for shortwave radiation agree best with the observed ice volume changes, indicating that their melt relationships are robust in time and thus suitable for long-term modelling, in contrast to more empirical approaches that are oversensitive to temperature fluctuations. article_processing_charge: No article_type: original author: - first_name: Jeannette full_name: Gabbi, Jeannette last_name: Gabbi - first_name: Marco full_name: Carenzo, Marco last_name: Carenzo - first_name: Francesca full_name: Pellicciotti, Francesca id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70 last_name: Pellicciotti - first_name: Andreas full_name: Bauder, Andreas last_name: Bauder - first_name: Martin full_name: Funk, Martin last_name: Funk citation: ama: Gabbi J, Carenzo M, Pellicciotti F, Bauder A, Funk M. A comparison of empirical and physically based glacier surface melt models for long-term simulations of glacier response. Journal of Glaciology. 2014;60(224):1140-1154. doi:10.3189/2014jog14j011 apa: Gabbi, J., Carenzo, M., Pellicciotti, F., Bauder, A., & Funk, M. (2014). A comparison of empirical and physically based glacier surface melt models for long-term simulations of glacier response. Journal of Glaciology. International Glaciological Society. https://doi.org/10.3189/2014jog14j011 chicago: Gabbi, Jeannette, Marco Carenzo, Francesca Pellicciotti, Andreas Bauder, and Martin Funk. “A Comparison of Empirical and Physically Based Glacier Surface Melt Models for Long-Term Simulations of Glacier Response.” Journal of Glaciology. International Glaciological Society, 2014. https://doi.org/10.3189/2014jog14j011. ieee: J. Gabbi, M. Carenzo, F. Pellicciotti, A. Bauder, and M. Funk, “A comparison of empirical and physically based glacier surface melt models for long-term simulations of glacier response,” Journal of Glaciology, vol. 60, no. 224. International Glaciological Society, pp. 1140–1154, 2014. ista: Gabbi J, Carenzo M, Pellicciotti F, Bauder A, Funk M. 2014. A comparison of empirical and physically based glacier surface melt models for long-term simulations of glacier response. Journal of Glaciology. 60(224), 1140–1154. mla: Gabbi, Jeannette, et al. “A Comparison of Empirical and Physically Based Glacier Surface Melt Models for Long-Term Simulations of Glacier Response.” Journal of Glaciology, vol. 60, no. 224, International Glaciological Society, 2014, pp. 1140–54, doi:10.3189/2014jog14j011. short: J. Gabbi, M. Carenzo, F. Pellicciotti, A. Bauder, M. Funk, Journal of Glaciology 60 (2014) 1140–1154. date_created: 2023-02-20T08:16:34Z date_published: 2014-08-01T00:00:00Z date_updated: 2023-02-24T08:56:35Z day: '01' doi: 10.3189/2014jog14j011 extern: '1' intvolume: ' 60' issue: '224' keyword: - Earth-Surface Processes language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.3189/2014JoG14J011 month: '08' oa: 1 oa_version: Published Version page: 1140-1154 publication: Journal of Glaciology publication_identifier: eissn: - 1727-5652 issn: - 0022-1430 publication_status: published publisher: International Glaciological Society quality_controlled: '1' scopus_import: '1' status: public title: A comparison of empirical and physically based glacier surface melt models for long-term simulations of glacier response type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 60 year: '2014' ... --- _id: '12634' abstract: - lang: eng text: 'Glaciers in the Andes of Chile seem to be shrinking and possibly loosing mass, but the number and types of studies conducted, constrained mainly by data availability, are not sufficient to provide a synopsis of glacier changes for the past or future or explain in an explicit way causes of the observed changes. In this paper, we provide a systematic review of changes in glaciers for the entire country, followed by a discussion of the studies that have provided evidence of such changes. We identify a missing type of work in distributed, physically-oriented modelling studies that are needed to bridge the gap between the numerous remote sensing studies and the specific, point scale works focused on process understanding. We use an advanced mass balance model applied to one of the best monitored glaciers in the region to investigate four main research issues that should be addressed in modelling studies for a sound assessment of glacier changes: 1) the use of physically-based models of glacier ablation (energy balance models) versus more empirical models (enhanced temperature index approaches); 2) the importance of the correct extrapolation of air temperature forcing on glaciers and in high elevation areas and the large uncertainty in model outputs associated with it; 3) the role played by snow gravitational redistribution; and 4) the uncertainty associated with future climate scenarios. We quantify differences in model outputs associated with each of these choices, and conclude with suggestions for future work directions.' article_processing_charge: No article_type: review author: - first_name: Francesca full_name: Pellicciotti, Francesca id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70 last_name: Pellicciotti - first_name: S. full_name: Ragettli, S. last_name: Ragettli - first_name: M. full_name: Carenzo, M. last_name: Carenzo - first_name: J. full_name: McPhee, J. last_name: McPhee citation: ama: Pellicciotti F, Ragettli S, Carenzo M, McPhee J. Changes of glaciers in the Andes of Chile and priorities for future work. Science of The Total Environment. 2014;493:1197-1210. doi:10.1016/j.scitotenv.2013.10.055 apa: Pellicciotti, F., Ragettli, S., Carenzo, M., & McPhee, J. (2014). Changes of glaciers in the Andes of Chile and priorities for future work. Science of The Total Environment. Elsevier. https://doi.org/10.1016/j.scitotenv.2013.10.055 chicago: Pellicciotti, Francesca, S. Ragettli, M. Carenzo, and J. McPhee. “Changes of Glaciers in the Andes of Chile and Priorities for Future Work.” Science of The Total Environment. Elsevier, 2014. https://doi.org/10.1016/j.scitotenv.2013.10.055. ieee: F. Pellicciotti, S. Ragettli, M. Carenzo, and J. McPhee, “Changes of glaciers in the Andes of Chile and priorities for future work,” Science of The Total Environment, vol. 493. Elsevier, pp. 1197–1210, 2014. ista: Pellicciotti F, Ragettli S, Carenzo M, McPhee J. 2014. Changes of glaciers in the Andes of Chile and priorities for future work. Science of The Total Environment. 493, 1197–1210. mla: Pellicciotti, Francesca, et al. “Changes of Glaciers in the Andes of Chile and Priorities for Future Work.” Science of The Total Environment, vol. 493, Elsevier, 2014, pp. 1197–210, doi:10.1016/j.scitotenv.2013.10.055. short: F. Pellicciotti, S. Ragettli, M. Carenzo, J. McPhee, Science of The Total Environment 493 (2014) 1197–1210. date_created: 2023-02-20T08:16:46Z date_published: 2014-09-15T00:00:00Z date_updated: 2023-02-24T08:37:57Z day: '15' doi: 10.1016/j.scitotenv.2013.10.055 extern: '1' intvolume: ' 493' keyword: - Pollution - Waste Management and Disposal - Environmental Chemistry - Environmental Engineering language: - iso: eng month: '09' oa_version: None page: 1197-1210 publication: Science of The Total Environment publication_identifier: issn: - 0048-9697 publication_status: published publisher: Elsevier quality_controlled: '1' scopus_import: '1' status: public title: Changes of glaciers in the Andes of Chile and priorities for future work type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 493 year: '2014' ... --- _id: '13399' abstract: - lang: eng text: Nature has long inspired scientists with its seemingly unlimited ability to harness solar energy and to utilize it to drive various physiological processes. With the help of man-made molecular photoswitches, we now have the potential to outperform natural systems in many ways, with the ultimate goal of fabricating multifunctional materials that operate at different light wavelengths. An important challenge in developing light-controlled artificial molecular machines lies in attaining a detailed understanding of the photoisomerization-coupled conformational changes that occur in macromolecules and molecular assemblies. In this issue of ACS Nano, Bléger, Rabe, and co-workers use force microscopy to provide interesting insights into the behavior of individual photoresponsive molecules and to identify contraction, extension, and crawling events accompanying light-induced isomerization. article_processing_charge: No article_type: original author: - first_name: Pintu K. full_name: Kundu, Pintu K. last_name: Kundu - first_name: Rafal full_name: Klajn, Rafal id: 8e84690e-1e48-11ed-a02b-a1e6fb8bb53b last_name: Klajn citation: ama: Kundu PK, Klajn R. Watching single molecules move in response to light. ACS Nano. 2014;8(12):11913-11916. doi:10.1021/nn506656r apa: Kundu, P. K., & Klajn, R. (2014). Watching single molecules move in response to light. ACS Nano. American Chemical Society. https://doi.org/10.1021/nn506656r chicago: Kundu, Pintu K., and Rafal Klajn. “Watching Single Molecules Move in Response to Light.” ACS Nano. American Chemical Society, 2014. https://doi.org/10.1021/nn506656r. ieee: P. K. Kundu and R. Klajn, “Watching single molecules move in response to light,” ACS Nano, vol. 8, no. 12. American Chemical Society, pp. 11913–11916, 2014. ista: Kundu PK, Klajn R. 2014. Watching single molecules move in response to light. ACS Nano. 8(12), 11913–11916. mla: Kundu, Pintu K., and Rafal Klajn. “Watching Single Molecules Move in Response to Light.” ACS Nano, vol. 8, no. 12, American Chemical Society, 2014, pp. 11913–16, doi:10.1021/nn506656r. short: P.K. Kundu, R. Klajn, ACS Nano 8 (2014) 11913–11916. date_created: 2023-08-01T09:45:42Z date_published: 2014-12-23T00:00:00Z date_updated: 2023-08-08T07:18:58Z day: '23' doi: 10.1021/nn506656r extern: '1' external_id: pmid: - '25474733' intvolume: ' 8' issue: '12' keyword: - General Physics and Astronomy - General Engineering - General Materials Science language: - iso: eng month: '12' oa_version: None page: 11913-11916 pmid: 1 publication: ACS Nano publication_identifier: eissn: - 1936-086X issn: - 1936-0851 publication_status: published publisher: American Chemical Society quality_controlled: '1' scopus_import: '1' status: public title: Watching single molecules move in response to light type: journal_article user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87 volume: 8 year: '2014' ...