Zobrazeno 1 - 10
of 77
pro vyhledávání: '"PASCAL SIRGUEY"'
Publikováno v:
Journal of Glaciology, Vol 69, Pp 1030-1046 (2023)
A distributed mass-balance model is used over a 10-year period for the re-analysis of a glaciological mass-balance time series obtained from Brewster Glacier, New Zealand. Mass-balance modelling reveals glaciological mass balance has been overestimat
Externí odkaz:
https://doaj.org/article/e398ea4f3e334b38a143e8f5079c0532
Autor:
Andrew M. Lorrey, Lauren Vargo, Heather Purdie, Brian Anderson, Nicolas J. Cullen, Pascal Sirguey, Andrew Mackintosh, Andrew Willsman, Gregor Macara, Warren Chinn
Publikováno v:
Journal of Glaciology, Vol 68, Pp 1127-1140 (2022)
An end of summer snowline (EOSS) photographic dataset for Aotearoa New Zealand contains over four decades of equilibrium line altitude (ELA) observations for more than 50 index glaciers. This dataset provides an opportunity to create a climatological
Externí odkaz:
https://doaj.org/article/d9f74dfb1d344742afbe3c0133b0cc9d
Autor:
Aubrey D. Miller, Todd A. N. Redpath, Pascal Sirguey, Simon C. Cox, Perry Bartelt, Don Bogie, Jono P. Conway, Nicolas J. Cullen, Yves Bühler
Publikováno v:
Geophysical Research Letters, Vol 50, Iss 8, Pp n/a-n/a (2023)
Abstract An exceptional July 2022 winter storm brought 550 mm of precipitation to the Southern Alps of New Zealand. A series of alpine mass movements occurred during the storm, including a widespread snow avalanche cycle, debris flows, and erosion fr
Externí odkaz:
https://doaj.org/article/a6669fac3ba7405d86d8552ba7f0ed9a
Publikováno v:
GIScience & Remote Sensing, Vol 58, Iss 7, Pp 1090-1111 (2021)
We investigate the temporal dynamics of shifts in phenological responses of a range of key stages of the growing season in New Zealand’s three indigenous grassland types over the last 16 years (2001–2016). A near-daily Normalized Difference Veget
Externí odkaz:
https://doaj.org/article/9eef29f7dd8f4b5294c46d12fe5e5880
Publikováno v:
Environmental Advances, Vol 8, Iss , Pp 100234- (2022)
Grasslands in mountainous areas often show distinct responses in the timing of their growing season in relation to topographical variation. However, it is unclear which factors of topography (elevation, aspect, and slope) affect which phases of the t
Externí odkaz:
https://doaj.org/article/96c4d8b4869046ffa00888ad424ea637
Autor:
Zhimin Zhang, Liming Jiang, Yafei Sun, Pascal Sirguey, Marie Dumont, Lin Liu, Ning Gao, Songfeng Gao
Publikováno v:
Remote Sensing, Vol 15, Iss 1, p 31 (2022)
Annual mass balance is an important reflection of glacier status that is also very sensitive to climate fluctuations. However, there is no effective and universal albedo-based method for the reconstruction of annual mass balance due to the scarcity o
Externí odkaz:
https://doaj.org/article/a999c8d75ceb4225bff381b44ee20313
Publikováno v:
Journal of Glaciology, Vol 64, Pp 917-931 (2018)
Understanding the effects of climate on glaciers requires precise estimates of ice volume change over several decades. This is achieved by the geodetic mass balance computed by two means: (1) the digital elevation model (DEM) comparison (SeqDEM) allo
Externí odkaz:
https://doaj.org/article/cd2f541159444af19e9e75752e673c8b
Publikováno v:
Remote Sensing, Vol 13, Iss 23, p 4896 (2021)
Unsupervised image classification methods conventionally use the spatial information of pixels to reduce the effect of speckled noise in the classified map. To extract this spatial information, they employ a predefined geometry, i.e., a fixed-size wi
Externí odkaz:
https://doaj.org/article/651e5b8a45c34471a8b33937d6b96419
Autor:
NICOLAS J. CULLEN, BRIAN ANDERSON, PASCAL SIRGUEY, DOROTHEA STUMM, ANDREW MACKINTOSH, JONATHAN P. CONWAY, HUW J. HORGAN, RUZICA DADIC, SEAN J. FITZSIMONS, ANDREW LORREY
Publikováno v:
Journal of Glaciology, Vol 63, Pp 199-217 (2017)
Recognising the scarcity of glacier mass-balance data in the Southern Hemisphere, a mass-balance measurement programme was started at Brewster Glacier in the Southern Alps of New Zealand in 2004. Evolution of the measurement regime over the 11 years
Externí odkaz:
https://doaj.org/article/efe5c944cd034ad5ad3b49371c72bd39
Publikováno v:
Frontiers in Marine Science, Vol 5 (2018)
Externí odkaz:
https://doaj.org/article/577466074db74eb881a30e10dc417229