Results 11 to 20 of about 30,171 (292)

Completeness of radiosonde humidity observations based on the Integrated Global Radiosonde Archive [PDF]

open access: yesEarth System Science Data, 2019
Abstract. Radiosonde measurements from the 1930s to present give unique information on the distribution and variability of water vapor in the troposphere. The sounding data from the Integrated Global Radiosonde Archive (IGRA) Version 2 are examined here until the end of 2016, aiming to describe the completeness of humidity observations (simultaneous ...
António P. Ferreira   +2 more
openaire   +5 more sources

Validation of Aeolus wind profiles using ground-based lidar and radiosonde observations at Réunion island and the Observatoire de Haute-Provence

open access: yesAtmospheric Measurement Techniques, 2023
. The European Space Agency's (ESA) Aeolus satellite mission is the first Doppler wind lidar in space, operating in orbit for more than 4 years since August 2018 and providing global wind profiling throughout the entire troposphere and the lower ...
M. Ratynski   +6 more
semanticscholar   +1 more source

Comparison of planetary boundary layer height from ceilometer with ARM radiosonde data

open access: yesAtmospheric Measurement Techniques, 2022
. Ceilometer measurements of aerosol backscatter profiles have been widely used to provide continuous planetary boundary layer height (PBLHT) estimations. To investigate the robustness of ceilometer-estimated PBLHT under different atmospheric conditions,
Damao Zhang, J. Comstock, V. Morris
semanticscholar   +1 more source

Validation of Aeolus winds using radiosonde observations and numerical weather prediction model equivalents

open access: yes, 2021
. In August 2018, the first Doppler wind lidar, developed by the European Space Agency (ESA), was launched on board the Aeolus satellite into space.
Anne Martin   +5 more
semanticscholar   +1 more source

Radiosonde comparison of ERA5 and ERA-Interim reanalysis datasets over tropical oceans

open access: yesTellus A: Dynamic Meteorology and Oceanography, 2021
After the release of the ERA-Interim reanalysis, many changes have been made to the Integrated Forecasting System model and data-assimilation system, resulting in an improved reanalysis, ERA5.
M. Virman   +4 more
semanticscholar   +1 more source

On the quality of RS41 radiosonde descent data

open access: yesAtmospheric Measurement Techniques, 2021
. Radiosonde descent profiles have been available from tens of stations for several years now – mainly from Vaisala RS41 radiosondes. They have been compared with the ascent profiles, with ECMWF short-range forecasts and with co-located radio-occultation
B. Ingleby   +7 more
semanticscholar   +1 more source

Research on Modeling Weighted Average Temperature Based on the Machine Learning Algorithms

open access: yesAtmosphere, 2023
In response to the nonlinear fitting difficulty of the traditional weighted average temperature (Tm) modeling, this paper proposed four machine learning (ML)-based Tm models.
Kai Li   +5 more
doaj   +1 more source

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

open access: yesAtmosphere, 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   +2 more
doaj   +1 more source

Spire RO Thermal Profiles for Climate Studies: Initial Comparisons of the Measurements from Spire, NOAA-20 ATMS, Radiosonde, and COSMIC-2

open access: yesRemote Sensing, 2023
Global Navigation Satellite System (GNSS) Radio Occultation (RO) data play an essential role in improving numerical weather prediction (NWP) and monitoring climate change.
Xin Jing   +5 more
doaj   +1 more source

Tropospheric Gravity Waves Increase the Likelihood of Double Tropopauses

open access: yesGeophysical Research Letters, 2023
The tropopause region is crucial for the stratosphere‐troposphere exchange (STE) and acts as an indicator of climate change. Double tropopauses (DTs) act to increase the STE process but their driving mechanisms remain an open question.
Jia Shao   +5 more
doaj   +1 more source

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