Results 71 to 80 of about 95,351 (282)

Development of Selective Plane Illumination Surface Enhanced Raman Scattering Spectral Microscopy for Improved Cellular Imaging

Journal of Raman Spectroscopy, EarlyView.
Selective plane illumination (SPI) is combined with SERS spectral imaging to reduce background, improve image contrast, and enable improved spectroscopy from molecules on the surface of nanoparticles. This approach provides improved imaging and spectroscopy from nanoparticles in complex environments, such as biological cells.
Abigail E. Smith, Zachary D. Schultz
wiley   +1 more source

Detection Thresholds of Falling Snow from Satellite-Borne Active and Passive Sensors [PDF]

, 2012
Precipitation, including rain and snow, is a critical part of the Earth's energy and hydrology cycles. Precipitation impacts latent heating profiles locally while global circulation patterns distribute precipitation and energy from the equator to the ...
Johnson, Benjamin T., Munchak, S. Joseph, Skofronick-Jackson, Gail   +2 more
core   +1 more source

Controlled Irradiative Formation of Penitentes

, 2006
Spike-shaped structures are produced by light-driven ablation in very different contexts. Penitentes 1-4 m high are common on Andean glaciers, where their formation changes glacier dynamics and hydrology.
A. J. Pedraza, C. Troll, Charles Berger, E. Gyorgy, J. J. Rhodes, L. Lliboutry, L. Lliboutry, M. D. Betterton, S. G. Foltyn, S. G. Warren, S. I. Dolgaev, V. M. Kotlyakov, Vance Bergeron   +12 more
core   +1 more source

Particle Size Distribution Analysis of Mineral Dust in Polar Snow Using a Coulter Counter

Ocean and Polar Research, 2014
Mineral dust in the polar snow plays an important role both in the climate system of the Earth and in global biogeochemical cycles. Analysis of the concentration and the particle size distribution of mineral dust has been carried out in the snow from the Antarctic surface snow and the Greenland snowpit.
Jung-Ho Kang, Heejin Hwang, Sang Bum Hong, Soon Do Hur   +3 more
openaire   +2 more sources

Relationships between acoustic scattering layers and ocean stratification: An acoustic approach to estimate mixed layer depth

Limnology and Oceanography: Methods, EarlyView.
Abstract Ocean stratification, measured as mixed layer depth (MLD), is an important feature that influences many processes in the ocean; for example, by mediating the fluxes of momentum, heat and crucially key gases such as CO2 and oxygen from the atmosphere into the water column and vice versa. The conventional methods to measure stratification (e.g.,
Fabio Campanella, Jeroen van der Kooij, Liam Fernand   +2 more
wiley   +1 more source

Dual-wavelength radar technique development for snow rate estimation: a case study from GCPEx [PDF]

Atmospheric Measurement Techniques, 2019
quantitative precipitation estimation (QPE) of snowfall has generally been expressed in power-law form between equivalent radar reflectivity factor (Ze) and liquid equivalent snow rate (SR). It is known that there is large variability in the prefactor of
G.-J. Huang, G.-J. Huang, V. N. Bringi, A. J. Newman, G. Lee, D. Moisseev, D. Moisseev, B. M. Notaroš   +7 more
doaj   +1 more source

Bottom–up and top–down drivers influence urbanization effects on insect herbivory in oaks

Oikos, EarlyView.
Urban forests provide essential ecosystem services, including pest control, biodiversity conservation, and human health benefits. Herbivory is a widespread biotic interaction that shapes ecosystem functions, such as primary productivity and soil fertility, which underpin these services.
Gabriela Quiroga, Carla Vázquez‐González, Víctor M. Rodríguez, Beatriz Lago‐Núñez, Astrid Van den Bossche, Pieter De Frenne, Martin M. Gossner, Johan A. Stenberg, Kristoffer Hylander, Ayco J. M. Tack, Mona Chor Bjørn, Katerina Sam, Jovan Dobrosavljević, Slobodan Milanović, Olivier Bonnard, Bastien Castagneyrol, Felisa Covelo, Luis Abdala‐Roberts, Xoaquín Moreira   +18 more
wiley   +1 more source

Shape Dependence of Falling Snow Crystals’ Microphysical Properties Using an Updated Shape Classification

Applied Sciences, 2020
We present ground-based in situ snow measurements in Kiruna, Sweden, using the ground-based in situ instrument Dual Ice Crystal Imager (D-ICI). D-ICI records dual high-resolution images from above and from the side of falling natural snow crystals and ...
Sandra Vázquez-Martín, Thomas Kuhn, Salomon Eliasson   +2 more
doaj   +1 more source

The Evolution of the Water Distribution in a Viscous Protoplanetary Disk

, 2005
(Abridged) Astronomical observations have shown that protoplanetary disks are dynamic objects through which mass is transported and accreted by the central star.
Ciesla, Fred J., Cuzzi, Jeffrey N.
core   +2 more sources

The importance of particle size distribution shape for triple-frequency radar retrievals of the morphology of snow [PDF]

, 2019
Abstract. The accurate representation of ice particles is essential for both remotely-sensed estimates of cloud and precipitation and numerical models of the atmosphere. As it is typical in radar retrievals to assume that all snow is composed of unrimed aggregate snowflakes, both denser rimed snow and the mixed-phase cloud in which riming occurs may be
Shannon L. Mason, Robin J. Hogan, Christopher D. Westbrook, Stefan Kneifel, Dmitri Moisseev   +4 more
openaire   +1 more source