Results 31 to 40 of about 14,507 (167)

Impacts of tidewater glacier advance on iceberg habitat

Annals of Glaciology, 2023
Icebergs in proglacial fjords serve as pupping, resting and molting habitat for some of the largest seasonal aggregations of harbor seals (Phoca vitulina richardii) in Alaska.
Lynn M. Kaluzienski, Jason M. Amundson, Jamie M. Womble, Andrew K. Bliss, Linnea E. Pearson   +4 more
doaj   +1 more source

Ecosystem-Based Fishery Management in the Bering Sea

Journal of Marine Science and Engineering, 2023
The waters of the Bering Sea are among the most productive on earth, having supported major commercial fisheries for up to ~60 years and First Nations cultures for millennia [...]
Jeffrey W. Short
doaj   +1 more source

Changing drivers of regional large magnitude avalanche frequency throughout Colorado, USA [PDF]

Natural Hazards and Earth System Sciences
Large magnitude snow avalanches (destructive size ≥ D3) impact settlements, transportation corridors, and public safety worldwide. In Colorado, United States, avalanches have killed more people than any other natural hazard since 1950.
E. H. Peitzsch, J. T. Martin, E. M. Greene, N. Eckert, A. Favillier, J. Konigsberg, N. Kichas, D. K. Stahle, K. W. Birkeland, K. Elder, G. T. Pederson   +10 more
doaj   +2 more sources

Imprints of sea ice, wind patterns, and atmospheric systems on summer water isotope signatures at Hercules Névé, East Antarctica [PDF]

The Cryosphere
This study investigated the influence of summer climate variability on water isotopes (δ18O, δ2H, and deuterium excess[dexc]) in a Hercules Névé ice core from Antarctica.
S. Kim, S. Kim, Y. Han, J. Chung, S. Ro, S. Ro, J. Moon, S. D. Hur, J. Lee   +8 more
doaj   +1 more source

Local topography increasingly influences the mass balance of a retreating cirque glacier [PDF]

The Cryosphere, 2018
Local topographically driven processes – such as wind drifting, avalanching, and shading – are known to alter the relationship between the mass balance of small cirque glaciers and regional climate.
C. Florentine, C. Florentine, J. Harper, D. Fagre, J. Moore, E. Peitzsch   +5 more
doaj   +1 more source

Spatiotemporal dynamics and driving mechanisms of grassland desertification in the Qilian Mountain National Park, northeast of the Tibetan Plateau

Ecological Indicators
Grasslands are important terrestrial ecosystems that have suffered severe desertification. However, the driving factors and mechanisms of grassland desertification remain unclear.
Hang Zhao, Nai'’ang Wang, Hongyi Cheng, Liqiong Bai, Nana Zhai, Xiaoyang Zhao   +5 more
doaj   +1 more source

A New Method for Automatic Glacier Extraction by Building Decision Trees Based on Pixel Statistics

Remote Sensing
Automatic glacier extraction from remote sensing images is the most important approach for large scale glacier monitoring. Commonly used band calculation indices to enhance glacier information are not effective in identifying shadowed glaciers and debris-
Xiao Liu, Hongyi Cheng, Jiang Liu, Xianbao Su, Yuchen Wang, Bin Qiao, Yipeng Wang, Nai’ang Wang   +7 more
doaj   +1 more source

Mountain goat declines in a protected, interior, native population

Ecosphere
A shifting climate poses threats to alpine‐adapted species including mountain goats. We used long‐term (12 years) citizen science monitoring data and Bayesian N‐mixture modeling to estimate population trends and drivers of population metrics among ...
Tabitha A. Graves, William M. Janousek, Michael J. Yarnall, Jami Belt   +3 more
doaj   +1 more source

Sedimentary organic carbon dynamics in a glaciated Arctic fjord: tracing contributions of terrestrial and marine sources in the context of Atlantification over recent centuries [PDF]

Biogeosciences
In this study, we investigated sedimentary organic carbon (OC) dynamics in Kongsfjorden, Svalbard, using three multicores collected during the HH22 and HH23 cruises aboard the RV Helmer Hanssen in 2022 and 2023.
D. Kim, J.-H. Kim, Y. Ahn, M. Forwick, S.-I. Nam   +4 more
doaj   +1 more source

Effect of Soil Environment on Species Diversity of Desert Plant Communities

Plants, 2023
Desert ecosystems possess an astonishing biodiversity and are rich in endangered species. This study investigated characteristics of species diversity and soil environmental factors in three major deserts of China’s Alxa Plateau. The Alxa Desert included
Jie Sun, Nai’ang Wang, Zhenmin Niu
doaj   +1 more source