Results 61 to 70 of about 1,738 (184)

Unusual vertical oscillations of a radiosonde

Weather, EarlyView.
In summer 2023 in southern England, several unusual balloon launches were observed which descended for a few minutes before resuming ascent. This unusual vertical oscillation was repeated several times in a ‘roller‐coaster’‐like pattern. This article discusses the behaviour of the balloons.
Caleb Miller, Chun Hay Brian Lo, Stephen Burt, Ryan R. Neely III   +3 more
wiley   +1 more source

Performance of Forecasts of Hurricanes with and without Upper-Level Troughs over the Mid-Latitudes

Atmosphere, 2020
We investigated the accuracy of operational medium-range ensemble forecasts for 29 Atlantic hurricanes between 2007 and 2019. Upper-level troughs with strong wind promoted northward movement of hurricanes over the mid-latitudes. For hurricanes with upper-
Kazutoshi Sato, Jun Inoue, Akira Yamazaki   +2 more
doaj   +1 more source

The Earth's Greatest Porous Media

Perspectives of Earth and Space Scientists, Volume 7, Issue 1, December 2026.
Abstract How deeply does modern meteoric water circulate into the continental crust? How deep is the Earth's Critical Zone (CZ), the top layer of the continental lithosphere that co‐evolves with the atmosphere, hydrosphere, and biosphere, extending from vegetation canopy down to fresh bedrock and the base of active groundwater circulation?
Ying Fan, William E. Dietrich, Jérôme Gaillardet, Steve E. Ingebritsen   +3 more
wiley   +1 more source

Model Sensitivities of Biomass‐Burning Aerosol Chemical Aging, Sulfate Formation, and Cloud Droplet Activation in the Southeastern Atlantic Using CESM and E3SM

Journal of Geophysical Research: Atmospheres, Volume 131, Issue 15, 16 August 2026.
Abstract Biomass‐burning smoke drives large uncertainty in climate projections of the Earth's radiative balance. This is due to the chemical and physical evolution of smoke and its impact on clouds and radiation. Here we focus on the southeastern Atlantic region and its inflow of African biomass‐burning smoke during August 2017.
Calvin Howes, Pablo Saide, Mary Barth, Yan Feng, Jens Redemann, Arthur J. Sedlacek III, Manish Shrivastava, Wenfu Tang, Rob Wood, Maria Zawadowicz, Paquita Zuidema   +10 more
wiley   +1 more source

Estimation of atmospheric mixing layer height from radiosonde data [PDF]

Atmospheric Measurement Techniques, 2014
Mixing layer height (h) is an important parameter for understanding the transport process in the troposphere, air pollution, weather and climate change.
X. Y. Wang, K. C. Wang
doaj   +1 more source

Evaluation of Low‐Level Clouds, Temperature, and Surface Radiation Using a Model, Two Reanalyses, and Southern Ocean Observations

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Low‐level clouds over the Southern Ocean (SO) exert a strong influence on surface radiation, yet their representation in reanalyses and climate models remains uncertain. We evaluated cloud properties and surface radiative fluxes from ERA5, MERRA‐2, and the CAM‐ATRAS model using observations obtained over the SO by Japan's R/V Shirase during ...
Kazutoshi Sato, Jun Inoue, Hitoshi Matsui   +2 more
wiley   +1 more source

Precipitable Water Vapour Retrieval from GPS Precise Point Positioning and NCEP CFSv2 Dataset during Typhoon Events

Sensors, 2018
Radiosonde is extensively used for understanding meteorological parameters in the vertical direction. Four typhoon events, including three landfalls (MERANTI, NEPARTAK, and MEGI) and one non-landfall (MALAKAS), were chosen in analysing the precipitable ...
Xu Tang, Craig Matthew Hancock, Zhiyong Xiang, Yang Kong, Huib de Ligt, Hongkai Shi, Jonathan Arthur Quaye-Ballard   +6 more
doaj   +1 more source

Planetary boundary layer height from CALIOP compared to radiosonde over China [PDF]

Atmospheric Chemistry and Physics, 2016
Accurate estimation of planetary boundary layer height (PBLH) is key to air quality prediction, weather forecast, and assessment of regional climate change.
W. Zhang, J. Guo, Y. Miao, Y. Miao, H. Liu, Y. Zhang, Z. Li, P. Zhai   +7 more
doaj   +1 more source

Effect of volcanoes on the vertical temperature profile in radiosonde data [PDF]

Journal of Geophysical Research: Atmospheres, 2002
Comparison of the responses of radiosonde temperatures to aerosol forcing from the Agung, El Chichon, and Pinatubo volcanic eruptions shows the expected stratospheric warming, with a maximum at 50 mbar in the tropics, and a predominantly cooling effect in the troposphere with a maximum in the middle or upper troposphere.
Melissa Free, James K. Angell
openaire   +1 more source

Trends in thunderstorm days, lightning activity, squalls and the environmental factors in Hong Kong

Weather, Volume 81, Issue 8, Page 248-257, August 2026.
This study analyses trends in Hong Kong's convective weather using long‐term observer‐based and shorter‐term instrument‐based data. Annual thunderstorm days increased significantly by 1.9 days decade−1 in 1947–2024, notably in June–September, consistent with increasingly favourable warm‐season environments for thunderstorms.
Yuk Sing Lui, Kin‐chung Hui, Chun‐wing Choy, Pak‐wai Chan, Ming‐chun Lam, Kin‐yu Chan   +5 more
wiley   +1 more source