Zobrazeno 1 - 10
of 47
pro vyhledávání: '"Claudia, Borries"'
Publikováno v:
Earth and Space Science, Vol 11, Iss 4, Pp n/a-n/a (2024)
Abstract Joule heating is one of the main energy inputs into the thermosphere‐ionosphere system. Precise modeling of this process is essential for any space weather application. Existing thermosphere‐ionosphere models tend to underestimate the ac
Externí odkaz:
https://doaj.org/article/7f209b06b7104bbd9dc2d5ab075717c6
Autor:
Ehsan Forootan, Saeed Farzaneh, Mona Kosary, Claudia Borries, Timothy Kodikara, Maike Schumacher
Publikováno v:
Scientific Reports, Vol 13, Iss 1, Pp 1-13 (2023)
Abstract Estimating global and multi-level Thermosphere Neutral Density (TND) is important for studying coupling processes within the upper atmosphere, and for applications like orbit prediction. Models are applied for predicting TND changes, however
Externí odkaz:
https://doaj.org/article/c801187166eb47e9a0edc9a9521f934e
Autor:
Isabel Fernandez-Gomez, Timothy Kodikara, Claudia Borries, Ehsan Forootan, Andreas Goss, Michael Schmidt, Mihail V. Codrescu
Publikováno v:
Earth, Planets and Space, Vol 74, Iss 1, Pp 1-13 (2022)
Abstract Dynamical changes in the ionosphere and thermosphere during geomagnetic storm times can have a significant impact on our communication and navigation applications, as well as satellite orbit determination and prediction activities. Because o
Externí odkaz:
https://doaj.org/article/be77038cbbf34b4b89789932f5e154ea
Publikováno v:
Remote Sensing, Vol 15, Iss 20, p 5053 (2023)
Existing ionospheric models perform very well in mapping the calm state of the ionosphere. However, the problem is accurately determining the total electron content (TEC) for disturbed days. Knowledge of the exact electron density is essential for si
Externí odkaz:
https://doaj.org/article/f5744e509377452e99191f11d0bad779
Autor:
Ehsan Forootan, Mona Kosary, Saeed Farzaneh, Timothy Kodikara, Kristin Vielberg, Isabel Fernandez-Gomez, Claudia Borries, Maike Schumacher
Publikováno v:
Scientific Reports, Vol 12, Iss 1, Pp 1-19 (2022)
Abstract Global estimation of thermospheric neutral density (TND) on various altitudes is important for geodetic and space weather applications. This is typically provided by models, however, the quality of these models is limited due to their imperf
Externí odkaz:
https://doaj.org/article/870c614d63b440e6b469382a5ad7f478
Autor:
Fernandez Gomez, Isabel, Stefan, Codrescu, Timothy, Kodikara, Frank, Heymann, Claudia, Borries
Publikováno v:
XXVIII General Assembly of the International Union of Geodesy and Geophysics (IUGG)
We developed a method to estimate the uncertainty in thermospheric neutral density measurements by assimilating these data into a physics-based model. Thermospheric neutral density is a critical parameter characterizing the upper atmosphere. Neutral
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bfbb7c5670af57ae7e895f684a7bccb9
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020365
https://gfzpublic.gfz-potsdam.de/pubman/item/item_5020365
Autor:
Samira Tasnim, Ying Zou, Claudia Borries, Carsten Baumann, Brian Walsh, Krishna Khanal, Connor O'Brien, Huaming Zhang
Having precise knowledge of the near-Earth solar wind (SW) and the embedded interplanetary magnetic field (IMF) is of critical importance to space weather operation due to the usage of SW and IMF in almost all magnetospheric and ionospheric models. T
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6b03c1de65552c39a01e6275c409c08e
https://doi.org/10.5194/egusphere-egu23-3379
https://doi.org/10.5194/egusphere-egu23-3379
Autor:
Florian Günzkofer, Dimitry Pokhotelov, Gunter Stober, Ingrid Mann, Sharon L. Vadas, Erich Becker, Anders Tjulin, Njål Gulbrandsen, Johan Kero, Alexander Kozlovsky, Mark Lester, Nicholas Mitchell, Satonori Nozawa, Masaki Tsutsumi, Claudia Borries
Atmospheric Gravity Waves (AGWs) forced in the lower atmosphere are known to have a significant impact on the mesosphere and lower thermosphere (MLT) region. In the ionosphere, they can generate Medium-Scale Traveling Ionospheric Disturbances (MSTIDs
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36394cac7e3fff56c9d4ca4a0d6bb46f
https://doi.org/10.5194/egusphere-egu23-9189
https://doi.org/10.5194/egusphere-egu23-9189
Accelerometer-derived neutral mass density (NMD) is an important quantity describing the variability of the upper atmosphere. NMD is widely used to calibrate and validate some models used for satellite orbit determination and prediction. Quantifying
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::993125efde06064cb8ccc8bcd9d8d4a7
https://doi.org/10.22541/essoar.168394738.80108429/v1
https://doi.org/10.22541/essoar.168394738.80108429/v1
Autor:
Florian Günzkofer, Dimitry Pokhotelov, Gunter Stober, Ingrid Mann, Sharon L. Vadas, Erich Becker, Anders Tjulin, Alexander Kozlovsky, Masaki Tsutsumi, Njål Gulbrandsen, Satonori Nozawa, Mark Lester, Evgenia Belova, Johan Kero, Nicholas J. Mitchell, Claudia Borries
Publikováno v:
eISSN
Atmospheric Gravity Waves and Traveling Ionospheric Disturbances can be observed in the neutral atmosphere and the ionosphere at a wide range of spatial and temporal scales. Especially at medium scales, these oscillations are often not resolved in ge
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f0251101aaedf851c4073353c02f6c5
https://doi.org/10.5194/egusphere-2023-678
https://doi.org/10.5194/egusphere-2023-678