Results 51 to 60 of about 440 (177)

Distinct El Niño Flavors and SAM Variability Modulate Surface Melt Over the Ross Ice Shelf

open access: yesJournal of Geophysical Research: Atmospheres, Volume 131, Issue 14, 28 July 2026.
Abstract Our study investigates how different flavors of El Niño, centered on the Eastern Pacific (EP) and Central Pacific (CP), and their interaction with the Southern Annular Mode (SAM) modulate surface melt events over the Ross Ice Shelf (RIS). Using satellite‐based melt observations, ERA5 reanalysis, high‐resolution regional model simulations, and ...
Sanjiban Dutta   +3 more
wiley   +1 more source

225 Jahre UV‐Strahlung – Die Rekonstruktion des Ritter‐Experiments (1801) für Schule und Hochschule

open access: yesCHEMKON, Volume 33, Issue 4, Page 107-113, July 2026.
Am 22. Februar 1801 gelang Johann Wilhelm Ritter in Jena der experimentelle Nachweis einer unsichtbaren Strahlung jenseits des violetten Bereichs des sichtbaren Spektrums. Als Indikator nutzte er die photochemische Schwärzung von Hornsilber (Silberchlorid) und erbrachte damit erstmals einen indirekten experimentellen Nachweis der ultravioletten ...
Tom Wagner   +2 more
wiley   +1 more source

Variation of the aerosol stratification over the Rhine Valley during Foehn development: a backscatter lidar study

open access: yesMeteorologische Zeitschrift, 2004
The vertical aerosol stratification within and above the Rhine Valley was studied with a backscatter lidar during FORM (Foehn in the Rhine Valley during MAP) IOPs 4-5, October 1-3, 1999. The lidar site was in Tr¨ubbach, 9° 28 E, 47° 04 N, 490 m asl.
Max Frioud   +5 more
doaj   +1 more source

Decadal Changes of UV Aerosol Optical Depth in Hobart, Australia Measured With a Brewer MKIII: Relationship to Bushfire Events and Climate Indices

open access: yesInternational Journal of Climatology, Volume 46, Issue 9, July 2026.
Monthly average aerosol optical depth at 320 nm obtained with a Brewer MKIII spectrophotometer for Hobart, Australia (42.8806° S, 147.3250° E) over a 21‐year period. There is a linear trend of 15.4% per decade. There are 9 months when the average aerosol optical depth exceeds twice the monthly standard deviation.
Manuel Nuñez   +3 more
wiley   +1 more source

Near‐Surface Air Temperature Measurements: Contribution to the Overall Uncertainty due to Wind Speed and Relative Humidity

open access: yesMeteorological Applications, Volume 33, Issue 4, July/August 2026.
This work evaluates the uncertainties on air temperature measurements from ground‐based stations under real environmental conditions, addressing the environment effects component, required by the World Meteorological Organisation to include in the overall measurement uncertainty.
Natali Giselle Aranda   +4 more
wiley   +1 more source

On the Looming during Alpine Foehn [PDF]

open access: yesBoundary-Layer Meteorology, 1991
The note deals with looming during foehn North of the Alps. The results Show that there is a weak effect in stretching optically the orography.
openaire   +3 more sources

Current Challenges in Orographic Flow Dynamics: Turbulent Exchange Due to Low-Level Gravity-Wave Processes

open access: yesAtmosphere, 2018
This paper examines current understanding of the influence of orographic flow dynamics on the turbulent transport of momentum and scalar quantities above complex terrain.
Simon B. Vosper   +5 more
doaj   +1 more source

Suggestions for unifying the parametrizations of turbulent orographic form drag, mountain wave drag, and flow blocking

open access: yesQuarterly Journal of the Royal Meteorological Society, Volume 152, Issue 778, July 2026 Part A.
A theory for the interaction between a boundary layer and a low mountain is used to provide estimates of the turbulent orographic form drag, upward‐propagating mountain gravity‐wave drag, and trapped lee‐wave drag (case shown in the figure). After reviewing briefly how these processes are represented in weather and climate models, we propose a ...
Francois Lott   +2 more
wiley   +1 more source

The "Mini-foehn" of Mittenwald- A comparison of measurements and modelling

open access: yesMeteorologische Zeitschrift, 2004
Strong nocturnal downvalley winds can often be observed in the Isar Valley near Mittenwald (Bavarian Alps) under the influence of high pressure systems over Central Europe or in the presence of ambient southerly winds.
Matthias Hornsteiner, Günther Zängl
doaj   +1 more source

Numerical simulation study of the effects of foehn winds on white head incidences in Yamagata Prefecture, Japan

open access: yesMeteorological Applications, 2021
Numerous studies have elucidated that white heads and chalky rice are caused by hot, dry and strong winds at night. However, these studies have only used synoptic weather charts and near‐surface observation data to confirm the role of foehn in white head
Yuki Asano, Hiroyuki Kusaka
doaj   +1 more source

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