Results 131 to 140 of about 38,278 (336)
Remote Sensing of River Discharge Based on Critical Flow Theory
Geophysical Research Letters, Volume 52, Issue 9, 16 May 2025.Abstract Critical flow theory provides a physical foundation for inferring discharge from measurements of wavelength and channel width made from images. In rivers with hydraulically steep local slopes greater than ∼ ${\sim} $0.01, flow velocities are high and the Froude number Fr $Fr$ (ratio of inertial to gravitational forces) can approach 1.0 ...
Carl J. Legleiter +9 more
wiley +1 more source
Predicting Melt Pond Coverage on Arctic Sea Ice From Pre‐Melt Surface Topography
Geophysical Research Letters, Volume 52, Issue 9, 16 May 2025.Abstract Sea‐ice melt ponds form in the depressions of pre‐melt surface topography, a process widely accepted yet lacking larger‐scale evaluation through explicit comparisons. During MOSAiC, we collected multi‐dimensional aerial data to examine the relationship between pre‐melt surface topography and melt pond evolution across an entire Arctic ice floe.
Niels Fuchs +5 more
wiley +1 more source
Geophysical Research Letters, Volume 52, Issue 9, 16 May 2025.Abstract The Pacific North America (PNA), a major teleconnection pattern in North Pacific atmospheric variability, is tightly linked to El Niño‐Southern Oscillation (ENSO)‐related sea surface temperature (SST) forcing. This study examines the relative effects of eastern Pacific (EP) and central Pacific (CP) ENSO in driving the PNA teleconnection during
Weihan Ma +3 more
wiley +1 more source
Hurricanes Induced Irreversible Large‐Scale Loss of Mangrove Forests
Geophysical Research Letters, Volume 52, Issue 9, 16 May 2025.Abstract Mangrove forests act as effective natural barriers against tropical storms. However, little information is available on the resilience of mangrove forests against hurricane impacts. Here we quantify the response of Florida mangroves to hurricane forcing.
Xixing Liang +5 more
wiley +1 more source
cryoSPHERE: Single-particle heterogeneous reconstruction from cryo EM [PDF]
International Conference on Learning Representations (ICLR), 2025The three-dimensional structure of proteins plays a crucial role in determining their function. Protein structure prediction methods, like AlphaFold, offer rapid access to a protein structure. However, large protein complexes cannot be reliably predicted, and proteins are dynamic, making it important to resolve their full conformational distribution ...
arxiv
Advancements in the GRACE and GRACE‐FO Gradiometer Mode
Earth and Space Science, Volume 12, Issue 5, May 2025.Abstract The global gravitational gradient field has not been observed since the decommission of GOCE in 2013. Based on the foundational work of Peidou and Pagiatakis (2019, https://doi.org/10.1029/2018jb016382), we advance the concept of GRACE gradiometer mode (GM) for the purpose of using GRACE, GRACE‐FO and future gravity space missions as ...
Nikeet Pandit, Spiros Pagiatakis
wiley +1 more source
RIS-Vis: A Novel Visualization Platform for Seismic, Geodetic, and Weather Data Relevant to Antarctic Cryosphere Science [PDF]
arXivAntarctic ice shelves play a vital role in preserving the physical conditions of the Antarctic cryosphere and the Southern Ocean, and beyond. By serving as a buttressing force, ice shelves prevent sea-level rise by restraining the flow of continental ice and glaciers to the sea.
arxiv
Observing systems and data sets related to the cryosphere in Canada: A contribution to planning for the global climate observing system [PDF]
, 1995 Roger G. Barry
openalex +1 more source
Global Biogeochemical Cycles, Volume 39, Issue 5, May 2025.Abstract During the transition from the Last Glacial Maximum (LGM) to the Holocene, the atmospheric N2O mole fraction increased by 80 nmol mol−1. Using ice core measurements of N2O isotopomer ratios, we show that this increase was driven by increases in both nitrification and denitrification, with the relative partitioning between both production ...
J. A. Menking +7 more
wiley +1 more source
Analysis of snowpack properties and structure from TerraSAR-X data, based on multilayer backscattering and snow evolution modeling approaches [PDF]
arXiv, 2012 Recently launched high precision Synthetic Aperture Radar (SAR) satellites such as TerraSAR-X, COSMO-SkyMed, etc. present a high potential for better observation and characterization of the cryosphere. This study introduces a new approach using high frequency (X-band) SAR data and an Electromagnetic Backscattering Model (EBM) to constrain the detailed ...
arxiv