Zobrazeno 1 - 10
of 61
pro vyhledávání: '"Jonathan C Ryan"'
Autor:
Jonathan C. Ryan
Publikováno v:
Communications Earth & Environment, Vol 5, Iss 1, Pp 1-9 (2024)
Abstract Greenland Ice Sheet meltwater runoff projections are essential for accurate forecasts of global sea-level rise. However, melt depends on complex interactions between climate warming, surface albedo, and clouds, which are challenging to simul
Externí odkaz:
https://doaj.org/article/06ea106c5d7748c3ba2f4a564f3b8681
Autor:
Markus Allgaier, Matthew G. Cooper, Anders E. Carlson, Sarah W. Cooley, Jonathan C. Ryan, Brian J. Smith
Publikováno v:
Journal of Glaciology, Vol 68, Pp 1210-1220 (2022)
The production of meltwater from glacier ice, which is exposed at the margins of land ice during the summer, is responsible for a large proportion of glacier mass loss. The rate of meltwater production from glacier ice is especially sensitive to its
Externí odkaz:
https://doaj.org/article/3e9b7c6d2fb84b768b365b1252d24010
Autor:
Seth N. Goldstein, Jonathan C. Ryan, Penelope R. How, Sarah E. Esenther, Lincoln H. Pitcher, Adam L. LeWinter, Brandon T. Overstreet, Ethan D. Kyzivat, Jessica V. Fayne, Laurence C. Smith
Publikováno v:
Frontiers in Earth Science, Vol 11 (2023)
The Greenland Ice Sheet is a leading source of global sea level rise, due to surface meltwater runoff and glacier calving. However, given a scarcity of proglacial river gauge measurements, ice sheet runoff remains poorly quantified. This lack of in s
Externí odkaz:
https://doaj.org/article/6608c4ccf30842e58f471119503d93cb
Autor:
Sarah W Cooley, Jonathan C Ryan
Publikováno v:
Environmental Research Letters, Vol 19, Iss 2, p 024013 (2024)
Landfast sea ice that forms along the Arctic coastline is of great importance to coastal Alaskan communities. It provides a stable platform for transportation and traditional activities, protects the coastline from erosion, and serves as a critical h
Externí odkaz:
https://doaj.org/article/5ab40458b606458b90da9667c4f53cb7
Publikováno v:
Geophysical Research Letters, Vol 46, Iss 4, Pp 2111-2120 (2019)
Abstract Fine‐scale, subseasonal fluctuations in Arctic‐Boreal surface water reflect regional water balance and modulate trace gas emissions to the atmosphere but have eluded detection using traditional satellite remote sensing. We use high‐res
Externí odkaz:
https://doaj.org/article/0a130c0ff612411cabfa57f04f807b0c
Autor:
Jonathan C. Ryan, Alun Hubbard, Marek Stibal, Tristram D. Irvine-Fynn, Joseph Cook, Laurence C. Smith, Karen Cameron, Jason Box
Publikováno v:
Nature Communications, Vol 9, Iss 1, Pp 1-10 (2018)
The surface types that comprise the dark zone of the Greenland Ice Sheet, an area of bare ice with low albedo, are unknown. Here, the authors use UAV imagery to show that, during the melt-season, biologically active surface impurities are responsible
Externí odkaz:
https://doaj.org/article/4bac3a9803014633825f805b8aba53e6
Autor:
Tristram D. L. Irvine-Fynn, Pete Bunting, Joseph M. Cook, Alun Hubbard, Nicholas E. Barrand, Edward Hanna, Andy J. Hardy, Andrew J. Hodson, Tom O. Holt, Matthias Huss, James B. McQuaid, Johan Nilsson, Kathrin Naegeli, Osian Roberts, Jonathan C. Ryan, Andrew J. Tedstone, Martyn Tranter, Christopher J. Williamson
Publikováno v:
Remote Sensing, Vol 14, Iss 1, p 62 (2021)
Ice surface albedo is a primary modulator of melt and runoff, yet our understanding of how reflectance varies over time across the Greenland Ice Sheet remains poor. This is due to a disconnect between point or transect scale albedo sampling and the c
Externí odkaz:
https://doaj.org/article/535634517e40450b809d9b90c0d20806
Autor:
Guillaume Jouvet, Yvo Weidmann, Eef van Dongen, Martin P. Lüthi, Andreas Vieli, Jonathan C. Ryan
Publikováno v:
Frontiers in Earth Science, Vol 7 (2019)
Unmanned aerial vehicle (UAV) photogrammetry has become an important tool for generating multi-temporal, high-resolution ortho-images and digital elevation models (DEMs) to study glaciers and their dynamics. In polar regions, the roughness of the ter
Externí odkaz:
https://doaj.org/article/276798820e444c4cbf62403f04e71b0e
Autor:
Sarah E. Esenther, Laurence C. Smith, Adam LeWinter, Lincoln H. Pitcher, Brandon T. Overstreet, Aaron Kehl, Cuyler Onclin, Seth Goldstein, Jonathan C. Ryan
Meltwater runoff from the Greenland Ice Sheet (GrIS) is an important contributor to global sea level rise, but substantial uncertainty exists in its measurement and prediction. Common approaches for estimating ice sheet runoff are in situ gauging of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0085610106e1585cdb1b73705feadabc
https://gi.copernicus.org/preprints/gi-2023-3/
https://gi.copernicus.org/preprints/gi-2023-3/
Publikováno v:
Frontiers in Earth Science, Vol 6 (2018)
The Patagonian Icefields, which straddle the Andes below 46°S, are two of the most sensitive ice masses on Earth to climate change. However, recent mass loss from the icefields along with its spatial and temporal variability is not well-constrained.
Externí odkaz:
https://doaj.org/article/3232f1e1852744c0b472ffa5aebdbf1f