---
_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'
...