دورية أكاديمية
Spatiotemporal variability of water vapor investigated using lidar and FTIR vertical soundings above the Zugspitze
| العنوان: | Spatiotemporal variability of water vapor investigated using lidar and FTIR vertical soundings above the Zugspitze |
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| المؤلفون: | Vogelmann, H., Sussmann, R., Trickl, T., Reichert, A. |
| المصدر: | Atmospheric Chemistry and Physics, 15 (6), 3135-3148 ; ISSN: 1680-7316 |
| بيانات النشر: | European Geosciences Union |
| سنة النشر: | 2015 |
| المجموعة: | KITopen (Karlsruhe Institute of Technologie) |
| مصطلحات موضوعية: | atmospheric dynamics, FTIR spectroscopy, greenhouse gas, lidar, long range transport, satellite data, spatiotemporal analysis, temporal variation, troposphere, water vapor, Alps, Bavaria, Bavarian Alps, Central Alps, Wetterstein Mountains, Zugspitze, ddc:550, Earth sciences, info:eu-repo/classification/ddc/550 |
| الوصف: | Water vapor is the most important greenhouse gas and its spatiotemporal variability strongly exceeds that of all other greenhouse gases. However, this variability has hardly been studied quantitatively so far. We present an analysis of a 5-year period of water vapor measurements in the free troposphere above the Zugspitze (2962 m a.s.l., Germany). Our results are obtained from a combination of measurements of vertically integrated water vapor (IWV), recorded with a solar Fourier transform infrared (FTIR) spectrometer on the summit of the Zugspitze and of water vapor profiles recorded with the nearby differential absorption lidar (DIAL) at the Schneefernerhaus research station. The special geometrical arrangement of one zenith-viewing and one sun-pointing instrument and the temporal resolution of both instruments allow for an investigation of the spatiotemporal variability of IWV on a spatial scale of less than 1 km and on a timescale of less than 1 h. The standard deviation of differences between both instruments sigma IWV calculated for varied subsets of data serves as a measure of variability. The different subsets are based on various spatial and temporal matching criteria. Within a time interval of 20 min, the spatial variability becomes significant for horizontal distances above 2 km, but only in the warm season (sigma IWV = 0.35 mm). However, it is not sensitive to the horizontal distance during the winter season. The variability of IWV within a time interval of 30 min peaks in July and August (sigma IWV > 0.55 mm, mean horizontal distance = 2.5 km) and has its minimum around midwinter (sigma IWV < 0.2 mm, mean distance > 5 km). The temporal variability of IWV is derived by selecting subsets of data from both instruments with optimal volume matching. For a short time interval of 5 min, the variability is 0.05 mm and increases to more than 0.5 mm for a time interval of 15 h. The profile variability of water vapor is determined by analyzing subsets of water vapor profiles recorded by the DIAL within ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | application/pdf |
| اللغة: | English |
| ردمك: | 978-1-00-004693-9 1-00-004693-1 |
| العلاقة: | info:eu-repo/semantics/altIdentifier/wos/000352157600011; info:eu-repo/semantics/altIdentifier/issn/1680-7316; https://publikationen.bibliothek.kit.edu/1000046931Test; https://publikationen.bibliothek.kit.edu/1000046931/3489465Test; https://doi.org/10.5445/IR/1000046931Test; http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:swb:90-469319Test |
| DOI: | 10.5445/IR/1000046931 |
| الإتاحة: | https://doi.org/10.5445/IR/1000046931Test https://doi.org/10.5194/acp-15-3135-2015Test https://publikationen.bibliothek.kit.edu/1000046931Test https://publikationen.bibliothek.kit.edu/1000046931/3489465Test http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:swb:90-469319Test |
| حقوق: | KITopen License, https://publikationen.bibliothek.kit.edu/kitopen-lizenzTest ; info:eu-repo/semantics/openAccess |
| رقم الانضمام: | edsbas.561D9E7 |
| قاعدة البيانات: | BASE |
| ردمك: | 9781000046939 1000046931 |
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| DOI: | 10.5445/IR/1000046931 |