Results 31 to 40 of about 7,279,413 (322)

Accuracy and inter-analyst agreement of visually estimated sea ice concentrations in Canadian Ice Service ice charts using single-polarization RADARSAT-2 [PDF]

open access: yesThe Cryosphere, 2020
This study compares the accuracy of visually estimated ice concentrations by eight analysts at the Canadian Ice Service with three standards: (i) ice concentrations calculated from automated image segmentation, (ii) ice concentrations calculated from ...
A. Cheng   +6 more
doaj   +1 more source

Contrail radiative dependence on ice particle number concentration

open access: yesEnvironmental Research: Climate, 2023
Abstract Recent studies on low aromatic fuels have shown that lower soot number emissions may reduce contrail ice particle number concentrations (N ice). Here we implemented, in a sophisticated radiative transfer model, two ice particle size distribution schemes in order to estimate the contrail radiative forcing’s (RFs)
Rubén Rodríguez De León, David S Lee
openaire   +3 more sources

A NEW WEATHER FILTER FOR REDUCING WEATHER EFFECT IN CALCULATING SEA ICE CONCENTRATION FROM AMSR2 DATA [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2023
Ice concentration is one of the most fundamental parameters of sea ice which can be calculated from brightness temperatures measured by passive microwave radiometers such as AMSR2 onboard satellites.
K. Cho, K. Naoki
doaj   +1 more source

ICE Concentration Linked with Extractive Stirrer (ICECLES) [PDF]

open access: yesAnalytica Chimica Acta, 2016
Trace and ultra-trace analysis can be difficult to achieve, especially for polar, more volatile, and/or thermally unstable analytes. A novel technique, coined ICE Concentration Linked with Extractive Stirrer (ICECLES), may help address this problem. The implementation of ICECLES described here combines stir bar sorptive extraction (SBSE) with freeze ...
Nujud Maslamani   +3 more
openaire   +3 more sources

The Migration Rules of Malathion during Indoor Simulated Lake Freezing

open access: yesToxics, 2023
The effect of malathion in ice is a poorly researched area, and ice is an important habitat for organisms at the base of the food web. This study presents laboratory-controlled experiments designed to investigate the migration rule of malathion during ...
Yan Zhang   +5 more
doaj   +1 more source

Effects of CO2 on H2O band profiles and band strengths in mixed H2O:CO2 ices [PDF]

open access: yes, 2006
H2O is the most abundant component of astrophysical ices. In most lines of sight it is not possible to fit both the H2O 3 um stretching, the 6 um bending and the 13 um libration band intensities with a single pure H2O spectrum.
A. C. A. Boogert   +37 more
core   +3 more sources

Wind- and tidal driven ambient noise in seasonally ice-covered waters north of the Svalbard archipelago [PDF]

open access: yesJASA Express Letters, 2022
This paper presents analysis of a 1-year (2018–2019) recording of ambient noise (40–2000 Hz) at a seasonally ice-covered location on the continental slope between the Svalbard archipelago and the Nansen Basin, northeast Atlantic Arctic.
Dag Tollefsen, Helge Buen
doaj   +1 more source

Intercomparison of passive microwave sea ice concentration retrievals over the high‐concentration Arctic sea ice [PDF]

open access: yesJournal of Geophysical Research: Oceans, 2007
Measurements of sea ice concentration from the Special Sensor Microwave Imager (SSM/I) using seven different algorithms are compared to ship observations, sea ice divergence estimates from the Radarsat Geophysical Processor System, and ice and water surface type classification of 59 wide‐swath synthetic aperture radar (SAR) scenes.
Søren Andersen   +4 more
openaire   +1 more source

Saharan dust and ice nuclei over Central Europe [PDF]

open access: yes, 2010
Surface measurements of aerosol and ice nuclei (IN) at a Central European mountain site during an episode of dust transport from the Sahara are presented.
Barrie, Leonard A.   +10 more
core   +1 more source

A numerical study of the effects of varing ice nuclei concentration on severe precipitation of a large area in north China

open access: yes暴雨灾害, 2022
Ice nuclei play an important role in cold cloud precipitation. In order to analyze the influence of ice nuclei-temperature spectra on the large-scale heavy precipitation process, the ice nuclei-temperature spectra measured in fields in North China are ...
Haodong GU   +4 more
doaj   +1 more source

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