Results 21 to 30 of about 71,585 (249)

Herschel SPIRE FTS Spectral Mapping Calibration [PDF]

, 2014
The Herschel SPIRE Fourier transform spectrometer (FTS) performs spectral imaging in the 447-1546 GHz band. It can observe in three spatial sampling modes: sparse mode, with a single pointing on sky, or intermediate or full modes with 1 and 1/2 beam ...
Benielli, Dominique, Fulton, Trevor, Hopwood, Rosalind, Imhof, Peter, Lim, Tanya, Lu, Nanyao, Makiwa, Gibion, Marchili, Nicola, Marín, Ana Belén Griñón, Naylor, David, Polehampton, Edward, Spencer, Locke, Swinyard, Bruce, Valtchanov, Ivan, van der Wiel, Matthijs   +14 more
core   +4 more sources

Effects of sudden stratospheric warmings on the global ionospheric total electron content using a machine learning analysis [PDF]

Atmospheric Chemistry and Physics
A sudden stratospheric warming (SSW) is a breakdown of the winter stratospheric polar vortex. It has atmospheric effects in both the Northern Hemisphere and Southern Hemisphere, leading to disturbances in the whole ionosphere.
G. Ma, K. Hocke, K. Hocke
doaj   +1 more source

Asymptotic inference results for multivariate long-memory processes [PDF]

, 2004
In this paper, we extend the well-known Sims, Stock and Watson (SSW)(Sims et al. 1990; Econometrica 56, 113?44), analysis on estimation and testing in vector autoregressive process (VARs) with integer unit roots and deterministic components to a more ...
Dolado, Juan José, Mármol, Francesc
core   +4 more sources

Sudden Stratospheric Warming (SSW) climatic contribution to winter temperature in Belarus: case of SSW 2017/2018

IOP Conference Series: Earth and Environmental Science, 2020
Abstract The influence of stratospheric processes on the troposphere is defined by a multifactorial mechanism containing various geophysical and photochemical processes. This interaction determines the weather and climate of a particular region of the Earth.
Schlender, T.V., Zhuchkevich, V.V., Krasouski, A.N., Umreika, S.D.   +3 more
openaire   +3 more sources

The Rwenzori Mountains, a Paleoproterzoic crustal shear belt crossing the Albertine rift system [PDF]

, 2015
This contribution discusses the development of the Paleoproterozoic Buganda-Toro belt in the Rwenzori mountains and its influence on the western part of the East African Rift System in Uganda.
Aanyu, K., Harbinson, R., Koehn, D., Link, K., Passchier, C.W., Sachau, T., Spikings, A.   +6 more
core   +1 more source

A Spatial Downscaling Approach for WindSat Satellite Sea Surface Wind Based on Generative Adversarial Networks and Dual Learning Scheme

Remote Sensing, 2022
Sea surface wind (SSW) is a crucial parameter for meteorological and oceanographic research, and accurate observation of SSW is valuable for a wide range of applications.
Jia Liu, Yongjian Sun, Kaijun Ren, Yanlai Zhao, Kefeng Deng, Lizhe Wang   +5 more
doaj   +1 more source

Influences of sudden stratospheric warmings on the ionosphere above Okinawa [PDF]

Atmospheric Chemistry and Physics
We analyzed the ionosonde observations from Okinawa (26.7° N, 128.1° E; magnetic latitude: 17.0° N) for the years from 1972 to 2023. Okinawa is in the northern low-latitude ionosphere, where the influences of sudden stratospheric warmings (SSWs) on the ...
K. Hocke, K. Hocke, W. Wang, W. Wang, G. Ma   +4 more
doaj   +1 more source

Westward Acceleration of Tropical Stratopause Zonal Winds During Major Sudden Stratospheric Warming Events

Geophysical Research Letters, 2020
The tropical Mesosphere‐Lower Thermosphere‐Ionosphere system is found to show significant variabilities during Sudden Stratospheric Warming (SSW) events.
N. Koushik, Karanam Kishore Kumar, Tarique A. Siddiqui   +2 more
doaj   +1 more source

Relative pointing offset analysis of calibration targets with repeated observations with Herschel-SPIRE Fourier-Transform Spectrometer [PDF]

, 2013
We present a method to derive the relative pointing offsets for SPIRE Fourier-Transform Spectrometer (FTS) solar system object (SSO) calibration targets, which were observed regularly throughout the Herschel mission.
Benielli, Dominique, Fulton, Trevor, Hopwood, Rosalind, Imhof, Peter, Konopczynski, Tomasz, Lim, Tanya, Lu, Nanyao, Marchili, Nicola, Naylor, David, Polehampton, Edward, Swinyard, Bruce, Valtchanov, Ivan   +11 more
core   +4 more sources

Compression performance and mechanism of superimposed sine-wave structures fabricated by selective laser melting

Materials & Design, 2021
A novel superimposed sine-wave (SSW) structure was designed and fabricated by selective laser melting (SLM) in this work. The energy absorption performance, deformation modes, and fracture mechanism of heat-treated SSW components under compression were ...
Dongdong Gu, Jiankai Yang, Kaijie Lin, Chenglong Ma, Luhao Yuan, Hongmei Zhang, Meng Guo, Han Zhang   +7 more
doaj   +1 more source