Zobrazeno 1 - 10
of 132
pro vyhledávání: '"H. Nesse"'
Autor:
B. Funke, T. Dudok de Wit, I. Ermolli, M. Haberreiter, D. Kinnison, D. Marsh, H. Nesse, A. Seppälä, M. Sinnhuber, I. Usoskin
Publikováno v:
Geoscientific Model Development, Vol 17, Pp 1217-1227 (2024)
The solar forcing prepared for Phase 6 of the Coupled Model Intercomparison Project (CMIP6) has been used extensively in climate model experiments and has been tested in various intercomparison studies. Recently, an International Space Science Instit
Externí odkaz:
https://doaj.org/article/4e828940e3654067a7bcf76d1a95c01f
Publikováno v:
Atmospheric Chemistry and Physics, Vol 22, Pp 8137-8149 (2022)
Chlorofluorocarbon (CFC) emissions in the latter part of the 20th century reduced stratospheric ozone abundance substantially, especially in the Antarctic region. Simultaneously, polar stratospheric ozone is also destroyed catalytically by nitrogen o
Externí odkaz:
https://doaj.org/article/b458352124c1473ea55e979d87039467
Publikováno v:
Atmospheric Chemistry and Physics, Vol 21, Pp 11041-11052 (2021)
Ozone is expected to fully recover from the chlorofluorocarbon (CFC) era by the end of the 21st century. Furthermore, because of anthropogenic climate change, a cooler stratosphere decelerates ozone loss reactions and is projected to lead to a super
Externí odkaz:
https://doaj.org/article/dbe3c5dbb54c4c58803150b113af52d6
Publikováno v:
Annales Geophysicae, Vol 39, Pp 69-83 (2021)
A set of 24 isolated, 46 compound, and 36 multi-night substorm events from the years 2008–2013 have been analysed in this study. Isolated substorm events are defined as single expansion–recovery phase pairs, compound substorms consist of multiple
Externí odkaz:
https://doaj.org/article/4ee85e86160645b79dd547552669ad2a
Publikováno v:
Annales Geophysicae, Vol 38, Pp 1191-1202 (2020)
Pulsating aurora (PsA) is a diffuse type of aurora with different structures switching on and off with a period of a few seconds. It is often associated with energetic electron precipitation (>10 keV) resulting in the interaction between magnetosph
Externí odkaz:
https://doaj.org/article/f25477e748254d1c9181a6b71e7651af
The Predictive Capabilities of the Auroral Electrojet Index for Medium Energy Electron Precipitation
Publikováno v:
Frontiers in Astronomy and Space Sciences, Vol 8 (2021)
The chemical imprint of the energetic electron precipitation on the atmosphere is now acknowledged as a part of the natural forcing of the climate system. It has, however, been questioned to which degree current proxies are able to quantify the mediu
Externí odkaz:
https://doaj.org/article/8c4c1a95814241a99006b95817c11e59
Autor:
H. Nesse Tyssøy, D. Heinrich, J. Stadsnes, M. Sørbø, U.-P. Hoppe, D. S. Evans, B. P. Williams, F. Honary
Publikováno v:
Annales Geophysicae, Vol 26, Pp 2515-2529 (2008)
Temperature measurements from the ALOMAR Weber Na lidar together with cosmic radio noise absorption measurements from IRIS and particle measurements from NOAA 15, 16 and 17 are used to study effects of geomagnetic activity on the polar winter uppe
Externí odkaz:
https://doaj.org/article/cc3793adac164f4a93a6c921668ac8d2
Autor:
H. Nesse, D. Heinrich, B. Williams, U.-P. Hoppe, J. Stadsnes, M. Rietveld, W. Singer, U. Blum, M. I. Sandanger, E. Trondsen
Publikováno v:
Annales Geophysicae, Vol 26, Pp 1071-1081 (2008)
Several possible mechanisms for the production of sporadic sodium layers have been discussed in the literature, but none of them seem to explain all the accumulated observations. The hypotheses range from direct meteoric input, to energetic electr
Externí odkaz:
https://doaj.org/article/86cf5f2f753945309d474de4562bc849
Publikováno v:
Annales Geophysicae, Vol 26, Pp 1057-1069 (2008)
We present summer Na-densities and atmospheric temperatures measured 80 to 110 km above the Arctic Lidar Observatory for Middle Atmosphere Research (ALOMAR). The Weber Na Lidar is part of ALOMAR, located at 69° N in Norway, 150 km north of the Ar
Externí odkaz:
https://doaj.org/article/339ad4092f8c462f85af77f033b28c16
Quantitative measurements of medium energy electron (MEE) precipitation ($>$40 keV) are a key to understand the total effect of particle precipitation on the atmosphere. The Medium Energy Proton and Electron Detector (MEPED) instrument on board the N
Externí odkaz:
http://arxiv.org/abs/1906.10460
