Zobrazeno 1 - 10
of 406
pro vyhledávání: '"Allen Pope"'
Autor:
Andrey N. Petrov, Larry D. Hinzman, Lars Kullerud, Tatiana S. Degai, Liisa Holmberg, Allen Pope, Alona Yefimenko
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-4 (2020)
Arctic research faces unprecedented disruptions due to COVID-19. This ‘pause’ gives an opportunity to reflect on the current state and the future of Arctic science and move towards a more resilient, thus equitable, coordinated, safe and locally-e
Externí odkaz:
https://doaj.org/article/f237eaf3dc1e488a87b652566a7d2b32
Autor:
KAREN E. ALLEY, TED A. SCAMBOS, ROBERT S. ANDERSON, HARIHAR RAJARAM, ALLEN POPE, TERRY M. HARAN
Publikováno v:
Journal of Glaciology, Vol 64, Pp 321-332 (2018)
Strain rates are fundamental measures of ice flow and are used in a wide variety of glaciological applications including investigations of bed properties, calculations of basal mass balance on ice shelves, and constraints on ice rheological models. H
Externí odkaz:
https://doaj.org/article/3be17fe1c10f4174a2f7cfbd3b526d5d
Publikováno v:
Journal of Glaciology, Vol 63, Pp 464-476 (2017)
Increased summer ice velocities on the Greenland ice sheet are driven by meltwater input to the subglacial environment. However, spatial patterns of surface input and partitioning of meltwater between different pathways to the base remain poorly unde
Externí odkaz:
https://doaj.org/article/1bc064c0b8ba4760a8e4ba3707f8b2ab
Autor:
ALLEN POPE, IAN C. WILLIS, FINNUR PÁLSSON, NEIL S. ARNOLD, W. GARETH REES, HELGI BJÖRNSSON, LAUREN GREY
Publikováno v:
Journal of Glaciology, Vol 62, Pp 497-511 (2016)
Glaciers and ice caps around the world are changing quickly, with surge-type behaviour superimposed upon climatic forcing. Here, we study Iceland's second largest ice cap, Langjökull, which has both surge- and non-surge-type outlets. By differencing
Externí odkaz:
https://doaj.org/article/a4fe1cae528845158ed209b7e49f09a0
Autor:
Anna Ruth W. Halberstadt, Colin J. Gleason, Mahsa S. Moussavi, Allen Pope, Luke D. Trusel, Robert M. DeConto
Publikováno v:
Remote Sensing, Vol 12, Iss 8, p 1327 (2020)
Surface meltwater generated on ice shelves fringing the Antarctic Ice Sheet can drive ice-shelf collapse, leading to ice sheet mass loss and contributing to global sea level rise. A quantitative assessment of supraglacial lake evolution is required t
Externí odkaz:
https://doaj.org/article/d8eea9be65594387867a8ec88dc60f76
Autor:
Mahsa Moussavi, Allen Pope, Anna Ruth W. Halberstadt, Luke D. Trusel, Leanne Cioffi, Waleed Abdalati
Publikováno v:
Remote Sensing, Vol 12, Iss 1, p 134 (2020)
Melt and supraglacial lakes are precursors to ice shelf collapse and subsequent accelerated ice sheet mass loss. We used data from the Landsat 8 and Sentinel-2 satellites to develop a threshold-based method for detection of lakes found on the Antarct
Externí odkaz:
https://doaj.org/article/3a5bf4507b1c4068b2751ce718231ac8
Publikováno v:
Remote Sensing, Vol 6, Iss 7, Pp 6183-6220 (2014)
This paper aims to introduce the main types and sources of remotely sensed data that are freely available and have cryospheric applications. We describe aerial and satellite photography, satellite-borne visible, near-infrared and thermal infrared sen
Externí odkaz:
https://doaj.org/article/4c48d7f4ab604a208c859f4f1b070097
Autor:
Allen Pope, Liisa Holmberg, Larry D. Hinzman, Lars Kullerud, Alona Yefimenko, Tatiana Degai, Andrey N. Petrov
Publikováno v:
Nature Communications, Vol 11, Iss 1, Pp 1-4 (2020)
Nature Communications
Nature Communications
Arctic research faces unprecedented disruptions due to COVID-19. This ‘pause’ gives an opportunity to reflect on the current state and the future of Arctic science and move towards a more resilient, thus equitable, coordinated, safe and locally-e
Autor:
David M. Krum, Victor Pankratius, Hanan Samet, Imme Ebert-Uphoff, Suzanne A. Pierce, Jia Zhang, Vipin Kumar, Mary C. Hill, Chris North, Arindam Banerjee, Carla P. Gomes, Yan Liu, Sai Ravela, Yolanda Gil, Padhraic Smyth, Juan M. Restrepo, Allen Pope, Craig A. Knoblock, Leslie Hsu, Shanan E. Peters, James L. Kinter, Shashi Shekhar, Michelle Cheatham, Katie Skinner, Gary S. Bust, John D. Horel, Pierre F. J. Lermusiaux, Beth Plale, Basil Tikoff, Hassan A. Babaie, Aaron J. Ridley, Lynn Yarmey, Kirk Borne
Publikováno v:
Communications of the ACM. 62:76-84
A research agenda for intelligent systems that will result in fundamental new capabilities for understanding the Earth system.
Autor:
Philipp Arndt, Jonathan Kingslake, R. Datta, Kelly M. Brunt, Zachary Fair, Allen Pope, Jeremy D. Stoll, Bert Wouters, Julian J. Spergel, M. S. Moussavi, Lori A. Magruder, Michael F. Jasinski, Helen A. Fricker
Publikováno v:
Geophysical Research Letters, 48(8)
Surface melting occurs during summer on the Antarctic and Greenland ice sheets, but the volume of stored surface meltwater has been difficult to quantify due to a lack of accurate depth estimates. NASA's ICESat-2 laser altimeter brings a new capabili