Results 51 to 60 of about 578,586 (234)

Enhanced Full Spectral Temperature‐Dependent Refractive Index of Liquid Water From Supercooled to Ambient Conditions

Geophysical Research Letters, Volume 53, Issue 6, 28 March 2026.
Abstract A new compilation of the complex refractive index of liquid water is presented, spanning temperatures from 240 $240$ (near homogeneous freezing) to 300 $300$ K and wavelengths from 0.034 $0.034$ μm to 10 m. The real part of the refractive index is derived using the Kramers–Kronig relation, where the imaginary part is constrained by ...
Siheng Wang, Ping Yang, Helen E. Brindley, Xianglei Huang, Tristan S. L'Ecuyer   +4 more
wiley   +1 more source

Bipolarization L-band microwave radiometer [PDF]

ITM Web of Conferences, 2019
A new bipolarization L-band microwave radiometer designed to measure soil moisture from an unmanned helicopter is presented. The schematic of the radiometer and an overview of the radiometer parts circuits are considering. The main features of the implementation of circuit and technical solutions are considered.
Gudkov A., Leushin V., Agasieva S., Sidorov I.   +3 more
openaire   +3 more sources

Observation of Mountain Waves and Secondary Gravity Waves in the Mesosphere Lower Thermosphere Above Patagonia

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 6, 28 March 2026.
Abstract We find observational evidence for mountain waves (MWs) and secondary gravity waves (2GWs) in the OH*(3‐1) layer above Tierra del Fuego, Argentina. On the night of 21–22 May 2018, the Advanced Mesospheric Temperature Mapper (AMTM) obtained temperatures at ∼84 ${\sim} 84$ km.
Robert Reichert, Pierre‐Dominique Pautet, Bernd Kaifler, Sebastian Rhode, Jörn Ungermann, Kaoru Sato, Diego Janches, Steven Smith   +7 more
wiley   +1 more source

Convective Organization in African Easterly Waves Observed During the NAMMA and CPEX‐CV Field Campaigns

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 6, 28 March 2026.
Abstract Fundamental questions remain about where and when convection will occur within African easterly waves. In this study, we aim to better understand the dynamical processes that govern moist convective organization at the meso‐alpha scale in tropical easterly waves using NASA airborne field campaigns and satellite observations.
D. Colón‐Burgos, M. M. Bell
wiley   +1 more source

Surface Observations From Atmospheric Radiation Measurement Sites Constrain the Anthropogenic Contribution to Cloud Droplet Number

Geophysical Research Letters, Volume 53, Issue 5, 16 March 2026.
Abstract Uncertainty in anthropogenic forcing driven by aerosol‐cloud interactions (aci) limits our ability to infer the sensitivity of the Earth system to forcing from historical records. The driver of aci is the change in cloud droplet number concentration (Nd) due to changes in aerosol serving as cloud condensation nuclei (CCN).
Dani B. Jones, Hunter Y. Brown, Jacqueline M. Nugent, August Mikkelsen, Ci Song, Damao Zhang, Susannah M. Burrows, Hamish Gordon, Andrew Kirby, Daniel T. McCoy   +9 more
wiley   +1 more source

ADC Performance in Microwave Radiometer

Journal of Radio Electronics, 2023
The configuration of a microwave switched radiometer is considered. The grounds that guide developers in determining the requirements for the ADC sampling rate are analyzed. It is shown that the ADC rate can be significantly reduced if an additional analog integrator is installed at the ADC input. Statistical modeling of such a circuit has been carried
D.P. Skulachev, A.S. Kosov
openaire   +1 more source

A Novel Approach to Enhancing Spatial Resolution in Submillimeter‐Wave Ice Cloud Parameter Retrieval

Atmospheric Science Letters, Volume 27, Issue 3, March 2026.
This study summarizes research that we reduce the impact of ice cloud horizontal heterogeneity in sensor footprint on retrieval. Specifically, we have mitigated the impact of the ice cloud plane parallelism assumption by improving the retrieval resolution.
Yuehao Zhuo, Shulei Li, Lei Liu, Shuai Hu, Husi Letu, Qingwei Zeng, Yuliang Liu   +6 more
wiley   +1 more source

Sensitivity of microwave radiometers with square - law and linear detectors

Journal of Telecommunications and Information Technology, 2004
Stochastic analysis of modulation microwave radiometers with square - law and linear detectors is presented in the paper. Assuming ideal detector characteristics it is shown that in typical applications, i.e., in very low power measurements, a type of ...
Bronisław Stec, Andrzej Dobrowolski, Waldemar Susek   +2 more
doaj   +1 more source

Sea surface salinity estimates from spaceborne L-band radiometers: An overview of the first decade of observation (2010–2019)

Remote Sensing of Environment, 2020
Operated since the end of 2009, the European Space Agency (ESA) Soil Moisture and Ocean Salinity (SMOS) satellite mission is the first orbiting radiometer that collects regular and global observations from space of two Essential Climate Variables of the ...
N. Reul, S. Grodsky, M. Arias, J. Boutin, R. Catany, B. Chapron, F. D'Amico, E. Dinnat, C. Donlon, A. Fore, S. Fournier, S. Guimbard, A. Hasson, N. Kolodziejczyk, G. Lagerloef, Tong Lee, D. Vine, E. Lindstrom, C. Maes, S. Mecklenburg, T. Meissner, E. Olmedo, R. Sabia, J. Tenerelli, C. Thouvenin-Masson, A. Turiel, J. Vergely, N. Vinogradova, F. Wentz, S. Yueh   +29 more
semanticscholar   +1 more source

Quantifying methane emissions from Laurentian Great Lakes estuaries using in situ measurements, remote sensing, and machine learning

Limnology and Oceanography Letters, Volume 11, Issue 2, March 2026.
Abstract Freshwater estuaries are natural contributors to the carbon cycle, including production and emission of methane (CH4), a potent greenhouse gas (GHG); however, estimates of their contribution to global GHG emissions is uncertain. Recent research has identified the potential for quantifying limnetic methane using optical remote sensing coupled ...
Jillian Greene, Ashtyn Gluck, Bopaiah Biddanda, Michael Philben, Sean Woznicki   +4 more
wiley   +1 more source