---
_id: '9567'
abstract:
- lang: eng
text: Let P be a graph property which is preserved by removal of edges, and consider
the random graph process that starts with the empty n-vertex graph and then adds
edges one-by-one, each chosen uniformly at random subject to the constraint that
P is not violated. These types of random processes have been the subject of extensive
research over the last 20 years, having striking applications in extremal combinatorics,
and leading to the discovery of important probabilistic tools. In this paper we
consider the k-matching-free process, where P is the property of not containing
a matching of size k. We are able to analyse the behaviour of this process for
a wide range of values of k; in particular we prove that if k=o(n) or if n−2k=o(n−−√/logn)
then this process is likely to terminate in a k-matching-free graph with the maximum
possible number of edges, as characterised by Erdős and Gallai. We also show that
these bounds on k are essentially best possible, and we make a first step towards
understanding the behaviour of the process in the intermediate regime.
article_processing_charge: No
article_type: original
author:
- first_name: Michael
full_name: Krivelevich, Michael
last_name: Krivelevich
- first_name: Matthew Alan
full_name: Kwan, Matthew Alan
id: 5fca0887-a1db-11eb-95d1-ca9d5e0453b3
last_name: Kwan
orcid: 0000-0002-4003-7567
- first_name: Po‐Shen
full_name: Loh, Po‐Shen
last_name: Loh
- first_name: Benny
full_name: Sudakov, Benny
last_name: Sudakov
citation:
ama: Krivelevich M, Kwan MA, Loh P, Sudakov B. The random k‐matching‐free process.
Random Structures and Algorithms. 2018;53(4):692-716. doi:10.1002/rsa.20814
apa: Krivelevich, M., Kwan, M. A., Loh, P., & Sudakov, B. (2018). The random
k‐matching‐free process. Random Structures and Algorithms. Wiley. https://doi.org/10.1002/rsa.20814
chicago: Krivelevich, Michael, Matthew Alan Kwan, Po‐Shen Loh, and Benny Sudakov.
“The Random K‐matching‐free Process.” Random Structures and Algorithms.
Wiley, 2018. https://doi.org/10.1002/rsa.20814.
ieee: M. Krivelevich, M. A. Kwan, P. Loh, and B. Sudakov, “The random k‐matching‐free
process,” Random Structures and Algorithms, vol. 53, no. 4. Wiley, pp.
692–716, 2018.
ista: Krivelevich M, Kwan MA, Loh P, Sudakov B. 2018. The random k‐matching‐free
process. Random Structures and Algorithms. 53(4), 692–716.
mla: Krivelevich, Michael, et al. “The Random K‐matching‐free Process.” Random
Structures and Algorithms, vol. 53, no. 4, Wiley, 2018, pp. 692–716, doi:10.1002/rsa.20814.
short: M. Krivelevich, M.A. Kwan, P. Loh, B. Sudakov, Random Structures and Algorithms
53 (2018) 692–716.
date_created: 2021-06-18T12:37:40Z
date_published: 2018-12-01T00:00:00Z
date_updated: 2023-02-23T14:01:07Z
day: '01'
doi: 10.1002/rsa.20814
extern: '1'
external_id:
arxiv:
- '1708.01054'
intvolume: ' 53'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1708.01054
month: '12'
oa: 1
oa_version: Preprint
page: 692-716
publication: Random Structures and Algorithms
publication_identifier:
eissn:
- 1098-2418
issn:
- 1042-9832
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: The random k‐matching‐free process
type: journal_article
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
volume: 53
year: '2018'
...
---
_id: '9565'
abstract:
- lang: eng
text: Let D(n,p) be the random directed graph on n vertices where each of the n(n-1)
possible arcs is present independently with probability p. A celebrated result
of Frieze shows that if p≥(logn+ω(1))/n then D(n,p) typically has a directed Hamilton
cycle, and this is best possible. In this paper, we obtain a strengthening of
this result, showing that under the same condition, the number of directed Hamilton
cycles in D(n,p) is typically n!(p(1+o(1)))n. We also prove a hitting-time version
of this statement, showing that in the random directed graph process, as soon
as every vertex has in-/out-degrees at least 1, there are typically n!(logn/n(1+o(1)))n
directed Hamilton cycles.
article_processing_charge: No
article_type: original
author:
- first_name: Asaf
full_name: Ferber, Asaf
last_name: Ferber
- first_name: Matthew Alan
full_name: Kwan, Matthew Alan
id: 5fca0887-a1db-11eb-95d1-ca9d5e0453b3
last_name: Kwan
orcid: 0000-0002-4003-7567
- first_name: Benny
full_name: Sudakov, Benny
last_name: Sudakov
citation:
ama: Ferber A, Kwan MA, Sudakov B. Counting Hamilton cycles in sparse random directed
graphs. Random Structures and Algorithms. 2018;53(4):592-603. doi:10.1002/rsa.20815
apa: Ferber, A., Kwan, M. A., & Sudakov, B. (2018). Counting Hamilton cycles
in sparse random directed graphs. Random Structures and Algorithms. Wiley.
https://doi.org/10.1002/rsa.20815
chicago: Ferber, Asaf, Matthew Alan Kwan, and Benny Sudakov. “Counting Hamilton
Cycles in Sparse Random Directed Graphs.” Random Structures and Algorithms.
Wiley, 2018. https://doi.org/10.1002/rsa.20815.
ieee: A. Ferber, M. A. Kwan, and B. Sudakov, “Counting Hamilton cycles in sparse
random directed graphs,” Random Structures and Algorithms, vol. 53, no.
4. Wiley, pp. 592–603, 2018.
ista: Ferber A, Kwan MA, Sudakov B. 2018. Counting Hamilton cycles in sparse random
directed graphs. Random Structures and Algorithms. 53(4), 592–603.
mla: Ferber, Asaf, et al. “Counting Hamilton Cycles in Sparse Random Directed Graphs.”
Random Structures and Algorithms, vol. 53, no. 4, Wiley, 2018, pp. 592–603,
doi:10.1002/rsa.20815.
short: A. Ferber, M.A. Kwan, B. Sudakov, Random Structures and Algorithms 53 (2018)
592–603.
date_created: 2021-06-18T12:06:28Z
date_published: 2018-12-01T00:00:00Z
date_updated: 2023-02-23T14:01:03Z
day: '01'
doi: 10.1002/rsa.20815
extern: '1'
external_id:
arxiv:
- '1708.07746'
intvolume: ' 53'
issue: '4'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1708.07746
month: '12'
oa: 1
oa_version: Preprint
page: 592-603
publication: Random Structures and Algorithms
publication_identifier:
eissn:
- 1098-2418
issn:
- 1042-9832
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Counting Hamilton cycles in sparse random directed graphs
type: journal_article
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
volume: 53
year: '2018'
...
---
_id: '9568'
abstract:
- lang: eng
text: An intercalate in a Latin square is a 2×2 Latin subsquare. Let N be the number
of intercalates in a uniformly random n×n Latin square. We prove that asymptotically
almost surely N≥(1−o(1))n2/4, and that EN≤(1+o(1))n2/2 (therefore asymptotically
almost surely N≤fn2 for any f→∞). This significantly improves the previous best
lower and upper bounds. We also give an upper tail bound for the number of intercalates
in two fixed rows of a random Latin square. In addition, we discuss a problem
of Linial and Luria on low-discrepancy Latin squares.
article_processing_charge: No
article_type: original
author:
- first_name: Matthew Alan
full_name: Kwan, Matthew Alan
id: 5fca0887-a1db-11eb-95d1-ca9d5e0453b3
last_name: Kwan
orcid: 0000-0002-4003-7567
- first_name: Benny
full_name: Sudakov, Benny
last_name: Sudakov
citation:
ama: Kwan MA, Sudakov B. Intercalates and discrepancy in random Latin squares. Random
Structures and Algorithms. 2018;52(2):181-196. doi:10.1002/rsa.20742
apa: Kwan, M. A., & Sudakov, B. (2018). Intercalates and discrepancy in random
Latin squares. Random Structures and Algorithms. Wiley. https://doi.org/10.1002/rsa.20742
chicago: Kwan, Matthew Alan, and Benny Sudakov. “Intercalates and Discrepancy in
Random Latin Squares.” Random Structures and Algorithms. Wiley, 2018. https://doi.org/10.1002/rsa.20742.
ieee: M. A. Kwan and B. Sudakov, “Intercalates and discrepancy in random Latin squares,”
Random Structures and Algorithms, vol. 52, no. 2. Wiley, pp. 181–196, 2018.
ista: Kwan MA, Sudakov B. 2018. Intercalates and discrepancy in random Latin squares.
Random Structures and Algorithms. 52(2), 181–196.
mla: Kwan, Matthew Alan, and Benny Sudakov. “Intercalates and Discrepancy in Random
Latin Squares.” Random Structures and Algorithms, vol. 52, no. 2, Wiley,
2018, pp. 181–96, doi:10.1002/rsa.20742.
short: M.A. Kwan, B. Sudakov, Random Structures and Algorithms 52 (2018) 181–196.
date_created: 2021-06-18T12:47:25Z
date_published: 2018-03-01T00:00:00Z
date_updated: 2023-02-23T14:01:09Z
day: '01'
doi: 10.1002/rsa.20742
extern: '1'
external_id:
arxiv:
- '1607.04981'
intvolume: ' 52'
issue: '2'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1607.04981
month: '03'
oa: 1
oa_version: Preprint
page: 181-196
publication: Random Structures and Algorithms
publication_identifier:
eissn:
- 1098-2418
issn:
- 1042-9832
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: Intercalates and discrepancy in random Latin squares
type: journal_article
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
volume: 52
year: '2018'
...
---
_id: '9587'
abstract:
- lang: eng
text: We say a family of sets is intersecting if any two of its sets intersect,
and we say it is trivially intersecting if there is an element which appears in
every set of the family. In this paper we study the maximum size of a non-trivially
intersecting family in a natural “multi-part” setting. Here the ground set is
divided into parts, and one considers families of sets whose intersection with
each part is of a prescribed size. Our work is motivated by classical results
in the single-part setting due to Erdős, Ko and Rado, and Hilton and Milner, and
by a theorem of Frankl concerning intersecting families in this multi-part setting.
In the case where the part sizes are sufficiently large we determine the maximum
size of a non-trivially intersecting multi-part family, disproving a conjecture
of Alon and Katona.
article_processing_charge: No
article_type: original
author:
- first_name: Matthew Alan
full_name: Kwan, Matthew Alan
id: 5fca0887-a1db-11eb-95d1-ca9d5e0453b3
last_name: Kwan
orcid: 0000-0002-4003-7567
- first_name: Benny
full_name: Sudakov, Benny
last_name: Sudakov
- first_name: Pedro
full_name: Vieira, Pedro
last_name: Vieira
citation:
ama: Kwan MA, Sudakov B, Vieira P. Non-trivially intersecting multi-part families.
Journal of Combinatorial Theory Series A. 2018;156:44-60. doi:10.1016/j.jcta.2017.12.001
apa: Kwan, M. A., Sudakov, B., & Vieira, P. (2018). Non-trivially intersecting
multi-part families. Journal of Combinatorial Theory Series A. Elsevier.
https://doi.org/10.1016/j.jcta.2017.12.001
chicago: Kwan, Matthew Alan, Benny Sudakov, and Pedro Vieira. “Non-Trivially Intersecting
Multi-Part Families.” Journal of Combinatorial Theory Series A. Elsevier,
2018. https://doi.org/10.1016/j.jcta.2017.12.001.
ieee: M. A. Kwan, B. Sudakov, and P. Vieira, “Non-trivially intersecting multi-part
families,” Journal of Combinatorial Theory Series A, vol. 156. Elsevier,
pp. 44–60, 2018.
ista: Kwan MA, Sudakov B, Vieira P. 2018. Non-trivially intersecting multi-part
families. Journal of Combinatorial Theory Series A. 156, 44–60.
mla: Kwan, Matthew Alan, et al. “Non-Trivially Intersecting Multi-Part Families.”
Journal of Combinatorial Theory Series A, vol. 156, Elsevier, 2018, pp.
44–60, doi:10.1016/j.jcta.2017.12.001.
short: M.A. Kwan, B. Sudakov, P. Vieira, Journal of Combinatorial Theory Series
A 156 (2018) 44–60.
date_created: 2021-06-22T11:42:48Z
date_published: 2018-05-01T00:00:00Z
date_updated: 2023-02-23T14:01:55Z
day: '01'
doi: 10.1016/j.jcta.2017.12.001
extern: '1'
external_id:
arxiv:
- '1703.09946'
intvolume: ' 156'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1703.09946
month: '05'
oa: 1
oa_version: Preprint
page: 44-60
publication: Journal of Combinatorial Theory Series A
publication_identifier:
issn:
- 0097-3165
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Non-trivially intersecting multi-part families
type: journal_article
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
volume: 156
year: '2018'
...
---
_id: '9665'
abstract:
- lang: eng
text: We investigate the thermodynamics and kinetics of a hydrogen interstitial
in magnetic α-iron, taking account of the quantum fluctuations of the proton as
well as the anharmonicities of lattice vibrations and hydrogen hopping. We show
that the diffusivity of hydrogen in the lattice of bcc iron deviates strongly
from an Arrhenius behavior at and below room temperature. We compare a quantum
transition state theory to explicit ring polymer molecular dynamics in the calculation
of diffusivity. We then address the trapping of hydrogen by a vacancy as a prototype
lattice defect. By a sequence of steps in a thought experiment, each involving
a thermodynamic integration, we are able to separate out the binding free energy
of a proton to a defect into harmonic and anharmonic, and classical and quantum
contributions. We find that about 30% of a typical binding free energy of hydrogen
to a lattice defect in iron is accounted for by finite temperature effects, and
about half of these arise from quantum proton fluctuations. This has huge implications
for the comparison between thermal desorption and permeation experiments and standard
electronic structure theory. The implications are even greater for the interpretation
of muon spin resonance experiments.
article_number: '225901'
article_processing_charge: No
article_type: review
author:
- first_name: Bingqing
full_name: Cheng, Bingqing
id: cbe3cda4-d82c-11eb-8dc7-8ff94289fcc9
last_name: Cheng
orcid: 0000-0002-3584-9632
- first_name: Anthony T.
full_name: Paxton, Anthony T.
last_name: Paxton
- first_name: Michele
full_name: Ceriotti, Michele
last_name: Ceriotti
citation:
ama: 'Cheng B, Paxton AT, Ceriotti M. Hydrogen diffusion and trapping in α-iron:
The role of quantum and anharmonic fluctuations. Physical Review Letters.
2018;120(22). doi:10.1103/physrevlett.120.225901'
apa: 'Cheng, B., Paxton, A. T., & Ceriotti, M. (2018). Hydrogen diffusion and
trapping in α-iron: The role of quantum and anharmonic fluctuations. Physical
Review Letters. American Physical Society. https://doi.org/10.1103/physrevlett.120.225901'
chicago: 'Cheng, Bingqing, Anthony T. Paxton, and Michele Ceriotti. “Hydrogen Diffusion
and Trapping in α-Iron: The Role of Quantum and Anharmonic Fluctuations.” Physical
Review Letters. American Physical Society, 2018. https://doi.org/10.1103/physrevlett.120.225901.'
ieee: 'B. Cheng, A. T. Paxton, and M. Ceriotti, “Hydrogen diffusion and trapping
in α-iron: The role of quantum and anharmonic fluctuations,” Physical Review
Letters, vol. 120, no. 22. American Physical Society, 2018.'
ista: 'Cheng B, Paxton AT, Ceriotti M. 2018. Hydrogen diffusion and trapping in
α-iron: The role of quantum and anharmonic fluctuations. Physical Review Letters.
120(22), 225901.'
mla: 'Cheng, Bingqing, et al. “Hydrogen Diffusion and Trapping in α-Iron: The Role
of Quantum and Anharmonic Fluctuations.” Physical Review Letters, vol.
120, no. 22, 225901, American Physical Society, 2018, doi:10.1103/physrevlett.120.225901.'
short: B. Cheng, A.T. Paxton, M. Ceriotti, Physical Review Letters 120 (2018).
date_created: 2021-07-15T12:22:41Z
date_published: 2018-06-01T00:00:00Z
date_updated: 2021-08-09T12:36:22Z
day: '01'
doi: 10.1103/physrevlett.120.225901
extern: '1'
external_id:
arxiv:
- '1803.00600'
pmid:
- '29906144'
intvolume: ' 120'
issue: '22'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/1803.00600
month: '06'
oa: 1
oa_version: Preprint
pmid: 1
publication: Physical Review Letters
publication_identifier:
eissn:
- 1079-7114
issn:
- 0031-9007
publication_status: published
publisher: American Physical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Hydrogen diffusion and trapping in α-iron: The role of quantum and anharmonic
fluctuations'
type: journal_article
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
volume: 120
year: '2018'
...
---
_id: '9659'
abstract:
- lang: eng
text: The curvature dependence of interfacial free energy, which is crucial in quantitatively
predicting nucleation kinetics and the stability of bubbles and droplets, is quantified
by the Tolman length δ. For solid-liquid interfaces, however, δ has never been
computed directly due to various theoretical and practical challenges. Here we
perform a direct evaluation of the Tolman length from atomistic simulations of
a solid-liquid planar interface in out-of-equilibrium conditions, by first computing
the surface tension from the amplitude of thermal capillary fluctuations of a
localized version of the Gibbs dividing surface and by then calculating how much
the surface energy changes when it is defined relative to the equimolar dividing
surface. We computed δ for a model potential, and found a good agreement with
the values indirectly inferred from nucleation simulations. The agreement not
only validates our approach but also suggests that the nucleation free energy
of the system can be perfectly described using classical nucleation theory if
the Tolman length is taken into account.
article_number: '231102'
article_processing_charge: No
article_type: original
author:
- first_name: Bingqing
full_name: Cheng, Bingqing
id: cbe3cda4-d82c-11eb-8dc7-8ff94289fcc9
last_name: Cheng
orcid: 0000-0002-3584-9632
- first_name: Michele
full_name: Ceriotti, Michele
last_name: Ceriotti
citation:
ama: 'Cheng B, Ceriotti M. Communication: Computing the Tolman length for solid-liquid
interfaces. The Journal of Chemical Physics. 2018;148(23). doi:10.1063/1.5038396'
apa: 'Cheng, B., & Ceriotti, M. (2018). Communication: Computing the Tolman
length for solid-liquid interfaces. The Journal of Chemical Physics. AIP
Publishing. https://doi.org/10.1063/1.5038396'
chicago: 'Cheng, Bingqing, and Michele Ceriotti. “Communication: Computing the Tolman
Length for Solid-Liquid Interfaces.” The Journal of Chemical Physics. AIP
Publishing, 2018. https://doi.org/10.1063/1.5038396.'
ieee: 'B. Cheng and M. Ceriotti, “Communication: Computing the Tolman length for
solid-liquid interfaces,” The Journal of Chemical Physics, vol. 148, no.
23. AIP Publishing, 2018.'
ista: 'Cheng B, Ceriotti M. 2018. Communication: Computing the Tolman length for
solid-liquid interfaces. The Journal of Chemical Physics. 148(23), 231102.'
mla: 'Cheng, Bingqing, and Michele Ceriotti. “Communication: Computing the Tolman
Length for Solid-Liquid Interfaces.” The Journal of Chemical Physics, vol.
148, no. 23, 231102, AIP Publishing, 2018, doi:10.1063/1.5038396.'
short: B. Cheng, M. Ceriotti, The Journal of Chemical Physics 148 (2018).
date_created: 2021-07-15T07:51:42Z
date_published: 2018-06-21T00:00:00Z
date_updated: 2023-02-23T14:03:57Z
day: '21'
doi: 10.1063/1.5038396
extern: '1'
external_id:
arxiv:
- '1803.09140'
pmid:
- '29935495'
intvolume: ' 148'
issue: '23'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1063/1.5038396
month: '06'
oa: 1
oa_version: Submitted Version
pmid: 1
publication: The Journal of Chemical Physics
publication_identifier:
eissn:
- 1089-7690
issn:
- 0021-9606
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Communication: Computing the Tolman length for solid-liquid interfaces'
type: journal_article
user_id: 6785fbc1-c503-11eb-8a32-93094b40e1cf
volume: 148
year: '2018'
...
---
_id: '12603'
abstract:
- lang: eng
text: We present a field-data rich modelling analysis to reconstruct the climatic
forcing, glacier response, and runoff generation from a high-elevation catchment
in central Chile over the period 2000–2015 to provide insights into the differing
contributions of debris-covered and debris-free glaciers under current and future
changing climatic conditions. Model simulations with the physically based glacio-hydrological
model TOPKAPI-ETH reveal a period of neutral or slightly positive mass balance
between 2000 and 2010, followed by a transition to increasingly large annual mass
losses, associated with a recent mega drought. Mass losses commence earlier, and
are more severe, for a heavily debris-covered glacier, most likely due to its
strong dependence on snow avalanche accumulation, which has declined in recent
years. Catchment runoff shows a marked decreasing trend over the study period,
but with high interannual variability directly linked to winter snow accumulation,
and high contribution from ice melt in dry periods and drought conditions. The
study demonstrates the importance of incorporating local-scale processes such
as snow avalanche accumulation and spatially variable debris thickness, in understanding
the responses of different glacier types to climate change. We highlight the increased
dependency of runoff from high Andean catchments on the diminishing resource of
glacier ice during dry years.
article_processing_charge: No
article_type: original
author:
- first_name: Flavia
full_name: Burger, Flavia
last_name: Burger
- first_name: Alvaro
full_name: Ayala, Alvaro
last_name: Ayala
- first_name: David
full_name: Farias, David
last_name: Farias
- first_name: Thomas E.
full_name: Shaw, Thomas E.
last_name: Shaw
- first_name: Shelley
full_name: MacDonell, Shelley
last_name: MacDonell
- first_name: Ben
full_name: Brock, Ben
last_name: Brock
- first_name: James
full_name: McPhee, James
last_name: McPhee
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: 'Burger F, Ayala A, Farias D, et al. Interannual variability in glacier contribution
to runoff from a high‐elevation Andean catchment: Understanding the role of debris
cover in glacier hydrology. Hydrological Processes. 2018;33(2):214-229.
doi:10.1002/hyp.13354'
apa: 'Burger, F., Ayala, A., Farias, D., Shaw, T. E., MacDonell, S., Brock, B.,
… Pellicciotti, F. (2018). Interannual variability in glacier contribution to
runoff from a high‐elevation Andean catchment: Understanding the role of debris
cover in glacier hydrology. Hydrological Processes. Wiley. https://doi.org/10.1002/hyp.13354'
chicago: 'Burger, Flavia, Alvaro Ayala, David Farias, Thomas E. Shaw, Shelley MacDonell,
Ben Brock, James McPhee, and Francesca Pellicciotti. “Interannual Variability
in Glacier Contribution to Runoff from a High‐elevation Andean Catchment: Understanding
the Role of Debris Cover in Glacier Hydrology.” Hydrological Processes.
Wiley, 2018. https://doi.org/10.1002/hyp.13354.'
ieee: 'F. Burger et al., “Interannual variability in glacier contribution
to runoff from a high‐elevation Andean catchment: Understanding the role of debris
cover in glacier hydrology,” Hydrological Processes, vol. 33, no. 2. Wiley,
pp. 214–229, 2018.'
ista: 'Burger F, Ayala A, Farias D, Shaw TE, MacDonell S, Brock B, McPhee J, Pellicciotti
F. 2018. Interannual variability in glacier contribution to runoff from a high‐elevation
Andean catchment: Understanding the role of debris cover in glacier hydrology.
Hydrological Processes. 33(2), 214–229.'
mla: 'Burger, Flavia, et al. “Interannual Variability in Glacier Contribution to
Runoff from a High‐elevation Andean Catchment: Understanding the Role of Debris
Cover in Glacier Hydrology.” Hydrological Processes, vol. 33, no. 2, Wiley,
2018, pp. 214–29, doi:10.1002/hyp.13354.'
short: F. Burger, A. Ayala, D. Farias, T.E. Shaw, S. MacDonell, B. Brock, J. McPhee,
F. Pellicciotti, Hydrological Processes 33 (2018) 214–229.
date_created: 2023-02-20T08:13:14Z
date_published: 2018-11-26T00:00:00Z
date_updated: 2023-02-28T11:49:36Z
day: '26'
doi: 10.1002/hyp.13354
extern: '1'
intvolume: ' 33'
issue: '2'
keyword:
- Water Science and Technology
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1002/hyp.13354
month: '11'
oa: 1
oa_version: Published Version
page: 214-229
publication: Hydrological Processes
publication_identifier:
eissn:
- 1099-1085
issn:
- 0885-6087
publication_status: published
publisher: Wiley
quality_controlled: '1'
scopus_import: '1'
status: public
title: 'Interannual variability in glacier contribution to runoff from a high‐elevation
Andean catchment: Understanding the role of debris cover in glacier hydrology'
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 33
year: '2018'
...
---
_id: '12605'
abstract:
- lang: eng
text: Snow depth patterns over glaciers are controlled by precipitation, snow redistribution
due to wind and avalanches, and the exchange of energy with the atmosphere that
determines snow ablation. While many studies have advanced the understanding of
ablation processes, less is known about winter snow patterns and their variability
over glaciers. We analyze snow depth on Haut Glacier d'Arolla, Switzerland, in
the two winter seasons 2006–2007 and 2010–2011 to (1) understand whether snow
depth over an alpine glacier at the end of the accumulation season exhibits a
behavior similar to the one observed on single slopes and vegetated areas; and
(2) investigate the snow pattern consistency over the two accumulation seasons.
We perform this analysis on a data set of high-resolution lidar-derived snow depth
using variograms and fractal parameters. Our first main result is that snow depth
patterns on the glacier exhibit a multiscale behavior, with a scale break around
20 m after which the fractal dimension increases, indicating more autocorrelated
structure before the scale break than after. Second, this behavior is consistent
over the two years, with fractal parameters and their spatial variability almost
constant in the two seasons. We also show that snow depth patterns exhibit a distinct
behavior in the glacier tongue and the upper catchment, with longer correlation
distances on the tongue in the direction of the main winds, suggesting spatial
distinctions that are likely induced by different processes and that should be
taken into account when extrapolating snow depth from limited samples.
article_processing_charge: No
article_type: original
author:
- first_name: I.
full_name: Clemenzi, I.
last_name: Clemenzi
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
- first_name: P.
full_name: Burlando, P.
last_name: Burlando
citation:
ama: Clemenzi I, Pellicciotti F, Burlando P. Snow depth structure, fractal behavior,
and interannual consistency over Haut Glacier d’Arolla, Switzerland. Water
Resources Research. 2018;54(10):7929-7945. doi:10.1029/2017wr021606
apa: Clemenzi, I., Pellicciotti, F., & Burlando, P. (2018). Snow depth structure,
fractal behavior, and interannual consistency over Haut Glacier d’Arolla, Switzerland.
Water Resources Research. American Geophysical Union. https://doi.org/10.1029/2017wr021606
chicago: Clemenzi, I., Francesca Pellicciotti, and P. Burlando. “Snow Depth Structure,
Fractal Behavior, and Interannual Consistency over Haut Glacier d’Arolla, Switzerland.”
Water Resources Research. American Geophysical Union, 2018. https://doi.org/10.1029/2017wr021606.
ieee: I. Clemenzi, F. Pellicciotti, and P. Burlando, “Snow depth structure, fractal
behavior, and interannual consistency over Haut Glacier d’Arolla, Switzerland,”
Water Resources Research, vol. 54, no. 10. American Geophysical Union,
pp. 7929–7945, 2018.
ista: Clemenzi I, Pellicciotti F, Burlando P. 2018. Snow depth structure, fractal
behavior, and interannual consistency over Haut Glacier d’Arolla, Switzerland.
Water Resources Research. 54(10), 7929–7945.
mla: Clemenzi, I., et al. “Snow Depth Structure, Fractal Behavior, and Interannual
Consistency over Haut Glacier d’Arolla, Switzerland.” Water Resources Research,
vol. 54, no. 10, American Geophysical Union, 2018, pp. 7929–45, doi:10.1029/2017wr021606.
short: I. Clemenzi, F. Pellicciotti, P. Burlando, Water Resources Research 54 (2018)
7929–7945.
date_created: 2023-02-20T08:13:31Z
date_published: 2018-06-07T00:00:00Z
date_updated: 2023-02-28T11:42:40Z
day: '07'
doi: 10.1029/2017wr021606
extern: '1'
intvolume: ' 54'
issue: '10'
keyword:
- Water Science and Technology
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1029/2017WR021606
month: '06'
oa: 1
oa_version: Published Version
page: 7929-7945
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: Snow depth structure, fractal behavior, and interannual consistency over Haut
Glacier d'Arolla, Switzerland
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 54
year: '2018'
...
---
_id: '12604'
abstract:
- lang: eng
text: Glaciers in the high mountains of Asia provide an important water resource
for millions of people. Many of these glaciers are partially covered by rocky
debris, which protects the ice from solar radiation and warm air. However, studies
have found that the surface of these debris-covered glaciers is actually lowering
as fast as glaciers without debris. Water ponded on the surface of the glaciers
may be partially responsible, as water can absorb atmospheric energy very efficiently.
However, the overall effect of these ponds has not been thoroughly assessed yet.
We study a valley in Nepal for which we have extensive weather measurements, and
we use a numerical model to calculate the energy absorbed by ponds on the surface
of the glaciers over 6 months. As we have not observed each individual pond thoroughly,
we run the model 5,000 times with different setups. We find that ponds are extremely
important for glacier melt and absorb energy 14 times as quickly as the debris-covered
ice. Although the ponds account for 1% of the glacier area covered by rocks, and
only 0.3% of the total glacier area, they absorb enough energy to account for
one eighth of the whole valley's ice loss.
article_processing_charge: No
article_type: letter_note
author:
- first_name: Evan S.
full_name: Miles, Evan S.
last_name: Miles
- first_name: Ian
full_name: Willis, Ian
last_name: Willis
- first_name: Pascal
full_name: Buri, Pascal
last_name: Buri
- first_name: Jakob F.
full_name: Steiner, Jakob F.
last_name: Steiner
- first_name: Neil S.
full_name: Arnold, Neil S.
last_name: Arnold
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: Miles ES, Willis I, Buri P, Steiner JF, Arnold NS, Pellicciotti F. Surface
pond energy absorption across four Himalayan Glaciers accounts for 1/8 of total
catchment ice loss. Geophysical Research Letters. 2018;45(19):10464-10473.
doi:10.1029/2018gl079678
apa: Miles, E. S., Willis, I., Buri, P., Steiner, J. F., Arnold, N. S., & Pellicciotti,
F. (2018). Surface pond energy absorption across four Himalayan Glaciers accounts
for 1/8 of total catchment ice loss. Geophysical Research Letters. American
Geophysical Union. https://doi.org/10.1029/2018gl079678
chicago: Miles, Evan S., Ian Willis, Pascal Buri, Jakob F. Steiner, Neil S. Arnold,
and Francesca Pellicciotti. “Surface Pond Energy Absorption across Four Himalayan
Glaciers Accounts for 1/8 of Total Catchment Ice Loss.” Geophysical Research
Letters. American Geophysical Union, 2018. https://doi.org/10.1029/2018gl079678.
ieee: E. S. Miles, I. Willis, P. Buri, J. F. Steiner, N. S. Arnold, and F. Pellicciotti,
“Surface pond energy absorption across four Himalayan Glaciers accounts for 1/8
of total catchment ice loss,” Geophysical Research Letters, vol. 45, no.
19. American Geophysical Union, pp. 10464–10473, 2018.
ista: Miles ES, Willis I, Buri P, Steiner JF, Arnold NS, Pellicciotti F. 2018. Surface
pond energy absorption across four Himalayan Glaciers accounts for 1/8 of total
catchment ice loss. Geophysical Research Letters. 45(19), 10464–10473.
mla: Miles, Evan S., et al. “Surface Pond Energy Absorption across Four Himalayan
Glaciers Accounts for 1/8 of Total Catchment Ice Loss.” Geophysical Research
Letters, vol. 45, no. 19, American Geophysical Union, 2018, pp. 10464–73,
doi:10.1029/2018gl079678.
short: E.S. Miles, I. Willis, P. Buri, J.F. Steiner, N.S. Arnold, F. Pellicciotti,
Geophysical Research Letters 45 (2018) 10464–10473.
date_created: 2023-02-20T08:13:18Z
date_published: 2018-10-18T00:00:00Z
date_updated: 2023-02-28T11:46:48Z
day: '18'
doi: 10.1029/2018gl079678
extern: '1'
intvolume: ' 45'
issue: '19'
keyword:
- General Earth and Planetary Sciences
- Geophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1029/2018GL079678
month: '10'
oa: 1
oa_version: Published Version
page: 10464-10473
publication: Geophysical Research Letters
publication_identifier:
eissn:
- 1944-8007
issn:
- 0094-8276
publication_status: published
publisher: American Geophysical Union
quality_controlled: '1'
scopus_import: '1'
status: public
title: Surface pond energy absorption across four Himalayan Glaciers accounts for
1/8 of total catchment ice loss
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 45
year: '2018'
...
---
_id: '12607'
abstract:
- lang: eng
text: Supraglacial ice cliffs exist on debris-covered glaciers worldwide, but despite
their importance as melt hot spots, their life cycle is little understood. Early
field observations had advanced a hypothesis of survival of north-facing and disappearance
of south-facing cliffs, which is central for predicting the contribution of cliffs
to total glacier mass losses. Their role as windows of energy transfer suggests
they may explain the anomalously high mass losses of debris-covered glaciers in
High Mountain Asia (HMA) despite the insulating debris, currently at the center
of a debated controversy. We use a 3D model of cliff evolution coupled to very
high-resolution topographic data to demonstrate that ice cliffs facing south (in
the Northern Hemisphere) disappear within a few months due to enhanced solar radiation
receipts and that aspect is the key control on cliffs evolution. We reproduce
continuous flattening of south-facing cliffs, a result of their vertical gradient
of incoming solar radiation and sky view factor. Our results establish that only
north-facing cliffs are recurrent features and thus stable contributors to the
melting of debris-covered glaciers. Satellite observations and mass balance modeling
confirms that few south-facing cliffs of small size exist on the glaciers of Langtang,
and their contribution to the glacier volume losses is very small (∼1%). This
has major implications for the mass balance of HMA debris-covered glaciers as
it provides the basis for new parameterizations of cliff evolution and distribution
to constrain volume losses in a region where glaciers are highly relevant as water
sources for millions of people.
article_processing_charge: No
article_type: original
author:
- first_name: Pascal
full_name: Buri, Pascal
last_name: Buri
- first_name: Francesca
full_name: Pellicciotti, Francesca
id: b28f055a-81ea-11ed-b70c-a9fe7f7b0e70
last_name: Pellicciotti
citation:
ama: Buri P, Pellicciotti F. Aspect controls the survival of ice cliffs on debris-covered
glaciers. PNAS. 2018;115(17):4369-4374. doi:10.1073/pnas.1713892115
apa: Buri, P., & Pellicciotti, F. (2018). Aspect controls the survival of ice
cliffs on debris-covered glaciers. PNAS. Proceedings of the National Academy
of Sciences. https://doi.org/10.1073/pnas.1713892115
chicago: Buri, Pascal, and Francesca Pellicciotti. “Aspect Controls the Survival
of Ice Cliffs on Debris-Covered Glaciers.” PNAS. Proceedings of the National
Academy of Sciences, 2018. https://doi.org/10.1073/pnas.1713892115.
ieee: P. Buri and F. Pellicciotti, “Aspect controls the survival of ice cliffs on
debris-covered glaciers,” PNAS, vol. 115, no. 17. Proceedings of the National
Academy of Sciences, pp. 4369–4374, 2018.
ista: Buri P, Pellicciotti F. 2018. Aspect controls the survival of ice cliffs on
debris-covered glaciers. PNAS. 115(17), 4369–4374.
mla: Buri, Pascal, and Francesca Pellicciotti. “Aspect Controls the Survival of
Ice Cliffs on Debris-Covered Glaciers.” PNAS, vol. 115, no. 17, Proceedings
of the National Academy of Sciences, 2018, pp. 4369–74, doi:10.1073/pnas.1713892115.
short: P. Buri, F. Pellicciotti, PNAS 115 (2018) 4369–4374.
date_created: 2023-02-20T08:13:41Z
date_published: 2018-04-09T00:00:00Z
date_updated: 2023-02-28T11:35:18Z
day: '09'
doi: 10.1073/pnas.1713892115
extern: '1'
intvolume: ' 115'
issue: '17'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1073/pnas.1713892115
month: '04'
oa: 1
oa_version: Published Version
page: 4369-4374
publication: PNAS
publication_identifier:
eissn:
- 1091-6490
issn:
- 0027-8424
publication_status: published
publisher: Proceedings of the National Academy of Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: Aspect controls the survival of ice cliffs on debris-covered glaciers
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 115
year: '2018'
...