Results 101 to 110 of about 34,894 (282)

Global-scale gravity wave analysis methodology for the ESA Earth Explorer 11 candidate CAIRT [PDF]

Atmospheric Measurement Techniques
In the past, satellite climatologies of gravity waves (GWs) have initiated progress in their representation in global models. However, these could not provide the phase speed and direction distributions needed for a better understanding of the ...
S. Rhode, P. Preusse, J. Ungermann, I. Polichtchouk, K. Sato, S. Watanabe, M. Ern, K. Nogai, B.-M. Sinnhuber, M. Riese   +9 more
doaj   +1 more source

Bismuth oxide nanoparticles in the stratosphere [PDF]

, 1997
Platey grains of cubic Bi2O3, α-Bi2O3, and Bi2O2.75 nanograins were associated with chondritic porous interplanetary dust particles W7029C1, W7029E5, and 2011C2 that were collected in the stratosphere at 17-19 km altitude.
Rietmeijer, Frans J.M., Rietmeijer, F.J.M., Mackinnon, Ian D.R., Ian D. R. Mackinnon, Mackinnon, I.D.R., Frans J. M. Rietmeijer   +5 more
core   +1 more source

Assessment of subseasonal forecast skill of tropical–extratropical cloud bands over the four subtropical convergence zones

Quarterly Journal of the Royal Meteorological Society, EarlyView.
This study evaluates the subseasonal predictive skill of tropical–extratropical cloud bands across four subtropical convergence zones in ECMWF reforecasts (2003–2022). Results show that, while exact daily predictions are limited to one week, accounting for temporal displacement improves forecast skill significantly, revealing a systematic early onset ...
Romain Pilon, Daniela I.V. Domeisen
wiley   +1 more source

Stratospheric hydration and ice microphysics of a convective overshoot observed during the TPEx campaign over Sweden [PDF]

Atmospheric Chemistry and Physics
This study examines the cloud microphysical properties and trace gas signatures associated with a convective overshooting event observed during the TPEx (TropoPause composition gradients and mixing Experiment) campaign in June 2024 over Sweden.
P. Konjari, P. Konjari, C. Rolf, M. Krämer, M. Krämer, A. Afchine, N. Spelten, I. Bartolome Garcia, I. Bartolome Garcia, A. Miltenberger, N. Emig, P. Joppe, J. Schneider, Y. Li, A. Petzold, H. Bozem, P. Hoor   +16 more
doaj   +1 more source

Highly resolved observations of trace gases in the lowermost stratosphere and upper troposphere from the Spurt project: an overview [PDF]

, 2006
During SPURT (Spurenstofftransport in der Tropopausenregion, trace gas transport in the tropopause region) we performed measurements of a wide range of trace gases with different lifetimes and sink/source characteristics in the northern hemispheric upper
Maser, Rolf, Wirth, Volkmar, Hegglin, Michaela I., Krebsbach, Michael, Günther, Gebhard, Brunner, Dominik, Parchatka, Uwe, Engel, Andreas, Hoor, Peter, Franke, Harald, Wetter, Thomas, Königstedt, Rainer, Spelten, Nicole, Bönisch, Harald, Schell, Dieter, Szabo, T., Schiller, Cornelius, Gurk, Christian Thomas, Peter, Thomas, Fischer, Herbert, Weers, Uwe, Wernli, Heini, Schmidt, Ulrich, Brunner, D., Franke, H., Königstedt, R., Hegglin, Michael, Krebsbach, Marc, Bönisch, H., Schiller, C., Wirth, V., Krebsbach, M., Fischer, H., Gurk, C., Parchatka, U., Günther, G., Maser, R., Fischer, Horst, Gurk, Christian, Wernli, H., Engel, A., Schmidt, U., Spelten, N., Weers, Uwe G., Schell, D., Wetter, T., Peter, Thomas; id_orcid, Hoor, P., Engel, Andreas K., Hegglin, M., Peter, T., Weers, U., Wernli, Heini; id_orcid   +52 more
core   +1 more source

Satellite radiance observation error inflation and spatial thinning: Reconciling idealized theory with near‐operational applications

Quarterly Journal of the Royal Meteorological Society, EarlyView.
Satellite radiance observations are spatially thinned using a grid‐based selection that retains one representative profile per cell. When observation errors are spatially correlated but treated as uncorrelated in the assimilation system, reducing thinning increases their influence, leading to overfitting and reduced analysis fit with other observations.
Joel Bedard, Alain Beaulne, Mark Buehner, Laurence Coursol   +3 more
wiley   +1 more source

Nitrogen Policy for Sustainable Agriculture in the US: Estimating Socially Optimal Application Rates and Economic Impacts

Sustainable Development, EarlyView.
ABSTRACT Nitrogen (N) application creates negative externalities via nitrate (NO3−) leaching that threatens human health and the emission of nitrous oxide (N2O), a potent greenhouse gas. This study determines socially optimal nitrogen application rates (SONR) for corn and wheat by considering the social costs of both pollutants. The assessment includes
Riza Radmehr, B. Wade Brorsen
wiley   +1 more source

Validation of MIPAS-ENVISAT H2O operational data collected between July 2002 and March 2004 [PDF]

, 2013
Water vapour (H2O) is one of the operationally retrieved key species of the Michelson Interferometer for Passive Atmospheric Sounding (MIPAS) instrument aboard the Environmental Satellite (ENVISAT) which was launched into its sun-synchronous orbit on 1 ...
Milz, M., Rohs, S., Schiller, C.,, Berthet, G.,, Fix, Andreas, Feist, D., Mona, Lucia, Renard, J. -B., Müller, S. C.,, Kleinert, A.,, J. Ovarlez, C. Cornacchia, Oelhaf, Hermann, Kleinert, Anne, Schiller, C., Zhang, G.,, Oelhaf, H., H. Oelhaf, Renard, Jean-Baptiste, Ovarlez, J., Fix, A., Renard, J.B, Feist, D. G., Bracher, A.,, Stiller, G.,, M. Milz, M. Weber, Renard, J., Cornacchia, C.,, L. Mona, Pappalarda, G., Renard, J-B,, Feist, D.G., H. Fischer, Milz, Mathias, Wetzel, G.,, Kleinert, A., Müller, S. C., Wetzel, Gerald, Zhang, G., Rizi, V.,, Wetzel, G., Piccolo, C.,, C. Schiller, Rizi, V., Lengel, A.,, Pappalardo, G.,, Raspollini, P., Schiller, Cornelius, D. G. Feist, Renard, J.-B., Mona, L.,, G. Wetzel, Pappalardo, G., Raspollini, Piera, A. Kleinert, Berthet, Gwenaël, Oelhaf, H.,, Ovarlez, J.,, Berthet, G., V. Rizi, Iarlori, M., P. Raspollini, Iarlori, M.,, Weber, M.,, Feist, D. G.,, G. Zhang, Raspollini, P.,, Stiller, G., Rohs, Susanne, Lengel, A., Fischer, H., G. Pappalardo, Bracher, A., A. Bracher, S. C. Müller, Stiller, Gabriele, Fix, A.,, G. Berthet, Weber, M., Fischer, H.,, M. Iarlori, A. Lengel, G. Stiller, Fischer, H, Bracher, Astrid, Cornacchia, C., A. Fix, S. Rohs, Müller, S., Mona, L., Cornacchia, C, Piccolo, C., J.-B. Renard, C. Piccolo, Müller, S.C., Milz, Mathias,, Rohs, S.,, Renard J. B., Oelhaf H., Rohs S., Wetzel G., Raspollini P., Berthet G., Feist D. G., Schiller C., Fix A., Pappalardo G., Weber M., Milz M., Mona L., Fischer H., RIZI, VINCENZO, Mueller S. C., Piccolo C., Cornacchia C., Iarlori M., Lengel A., Stiller G., Kleinert A., Ovarlez J., Zhang G., Bracher A.   +122 more
core   +2 more sources

The 2026 cold wave brought northern Fennoscandia its coldest 2‐week period since 1987

Weather, EarlyView.
During late December 2025 and January 2026, a severe and long‐lasting cold wave affected northern Fennoscandia. In this article, we aim to quantify the extremity of the 2026 cold wave and evaluate the atmospheric conditions that led to the persistent cold anomalies.
Daan van den Broek, Mika Rantanen
wiley   +1 more source

Rare Lightning and Convection Characteristics During Two Successive Tornadoes in Southern China

High Voltage, EarlyView.
ABSTRACT Systematic investigations into lightning characteristics of tornado storms in China remain scarce. This study comprehensively analyses rare lightning behaviour and overshooting top characteristics for two successive tornadoes during a long‐lived supercell in southern China on 27 April 2024.
Fengquan Li, Jiangling Zhi, Yu Wang, Hantao Tao, Zhaoming Li, Shanqiang Gu, Zhe Li, Zeyu Zhang, Lei Zhang, Guoying Tang   +9 more
wiley   +1 more source