Results 41 to 50 of about 1,738 (184)

An investigation of atmospheric temperature profiles in the Australian region using collocated GPS radio occultation and radiosonde data [PDF]

Atmospheric Measurement Techniques, 2011
GPS radio occultation (RO) has been recognised as an alternative atmospheric upper air observation technique due to its distinct features and technological merits.
K. Zhang, E. Fu, D. Silcock, Y. Wang, Y. Kuleshov   +4 more
doaj   +1 more source

Characterisation of tropospheric turbulent layersfrom radiosonde data

Electronics Letters, 1998
Thin cloudy turbulent layers, responsible for tropospheric scintillation on earth-space paths, are proved to be efficiently detected and characterised from radiosonde ascents, Based on one complete year of radiosonde data, statistical distributions of turbulent layer height, thickness and intensity are analysed, as is their seasonal variability.
H. Vasseur, D. Vanhoenacker
openaire   +1 more source

The benefits of a hybrid‐3DEnVar data assimilation scheme for the convection‐permitting NWP model AROME–Austria

Quarterly Journal of the Royal Meteorological Society, EarlyView.
The climatological‐error covariance matrix used in three‐dimensional variational data assimilation (3DVar) provides smooth and isotropic increments spread to long distances. In contrast, three‐dimensional ensemble variational data assimilation (3DEnVar) with a purely ensemble‐error covariance matrix provides inhomogeneous increments and contains the ...
Kaushambi Jyoti, Philipp Griewank, Florian Meier, Martin Weissmann   +3 more
wiley   +1 more source

Validation and Correction of FY-4B/GIIRS Temperature and Humidity Profiles Based on Radiosonde Data

应用气象学报
In order to promote applications of FY-4B satellite data, temperature and humidity profile products of FY-4B geostationary interferometric infrared sounder (GIIRS) are verified and evaluated from February 2023 to January 2024 based on radiosonde data ...
Jin Ziqi, Yu Zhenshou, Hao Shifeng, Zhang Honglei, Lu Zhengqi, Zhang Shuxian   +5 more
doaj   +1 more source

On the homogeneity of radiosonde wind time series

Meteorologische Zeitschrift, 2008
Radiosonde observations of temperature and wind have been an important source of upper air data during the past few decades. To be useful for climate studies, the quality and temporal homogeneity of this dataset is essential.
Christine Gruber, Leopold Haimberger
doaj   +1 more source

Confidence and Error Analyses of the Radiosonde and Ka-Wavelength Cloud Radar for Detecting the Cloud Vertical Structure

Remote Sensing, 2022
A macro-vertical structure is closely related to weather evolution and the energy budget balance of the atmospheric system of the Earth. In this study, radiosonde data were used to identify a cloud vertical structure (CVS) using the adjusted relative ...
Yun Yuan, Huige Di, Yuanyuan Liu, Danmin Cheng, Ning Chen, Qing Yan, Dengxin Hua   +6 more
doaj   +1 more source

The role of mesoscale weather effects in simulating pyroconvection: A case study of the Santa Coloma de Queralt wildfire

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This large‐eddy simulation study on pyroconvection shows that the added value from resolving the mesoscale explicitly is found in the timing of pyrocumulus formation and circulation changes. The circulation of the convective plume itself is not substantially different between the simulations. Abstract Extreme wildfire events are characterised by strong
Koen van der Aa, Bernard Postema, Chiel van Heerwaarden, Tristan Roelofs, Harm Jonker   +4 more
wiley   +1 more source

Use of Radiosonde Temperature Data in Climate Studies

Journal of Climate, 1998
Abstract Ten of the most common radiosondes used throughout the world since 1960 have been evaluated concerning potential use of their temperature data for climate studies. The VIZ; Space Data Corp.; Chinese GZZ; Japanese RS2-80; Russian RKZ, MARS, and A-22; and Vaisala RS80, RS 12/15, and RS18/21 radiosondes were evaluated by modeling the temperature ...
James K. Luers, Robert E. Eskridge
openaire   +1 more source

Numerical simulation and physical understanding of a locally initiated sea fog event over the eastern Yellow Sea with a transition of air–sea temperature difference

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Unexpected sea fog in the west coast of South Korea had a huge impact on the transportations in the Seoul–Incheon metropolitan area. We reproduced successfully the formation and evolution of a sea event with a transition of air–sea temperature difference using the Weather Research and Forecasting model.
Jeonghoe Kim, Jung‐Hoon Kim, Clive E. Dorman, Harindra J. S. Fernando   +3 more
wiley   +1 more source

The role of the synoptic‐scale conditions in driving fog and mist during the FATIMA July 2022 Sable Island Field program

Quarterly Journal of the Royal Meteorological Society, EarlyView.
ERA5 hourly 325‐m and 1512‐m (a) convergence and (b) vertical motion (actually pressure change with sign reversed to compare with convergence) over Sable Island around the time of an event. The mist (green) and fog (red) occurrences at the surface station are shown at the bottom of the figures. A 325‐m fitted line convergence was positive for the first
Clive E. Dorman, Darko Koračin, Reneta Dimitrova, Ismail Gultepe, Sebastian W. Hoch, Jesus Ruiz‐Plancarte, Qing Wang, Alexei Perelet, H. J. S. Fernando   +8 more
wiley   +1 more source