| 1. |
- Göransson, Elisabet, et al.
(författare)
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Letters, learning and Learned Ladies - An Analysis of Otto Sperling, Jr:s (1634-1715) correspondence with Scandinavian Women.
- 2002
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Ingår i: Supplementa Humanistica Lovaniensia. - 9058672123 ; XVIII, s. 199-223
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Konferensbidrag (refereegranskat)abstract
- The paper offers an analysis of some aspects (pragmatic, status, personal, feminist and stylistic) of the letters exchanged between the Danish Profesor Otto Sperling, Jr, 1634-1715) and three learned women (Anne Margrethe Qvitzow, the Cille Gad and Sophia Elisabeth Brenner), differentiating between the personal elements and the more formal and image-building ones in order to create a basis for a discussion on the postitions held by the correspondents.
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| 2. |
- Khosrawi, Farahnaz, et al.
(författare)
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Validation of CFC-12 measurements from the Improved Limb Atmospheric Spectrometer (ILAS)
- 2004
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Ingår i: Journal of Geophysical Research. ; 109:D06311
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Tidskriftsartikel (refereegranskat)abstract
- Measurements of CFC-12 were made by the Improved Limb Atmospheric Spectrometer (ILAS) between 57 N and 72 N in the Northern Hemisphere and between 64 S and 89 S in the Southern Hemisphere. ILAS was launched on 17 August 1996 on board the Advanced Earth Observing Satellite (ADEOS). The ILAS validation balloon campaigns were carried out from Kiruna, Sweden (68 N, 21 E), in February and March 1997 and from Fairbanks, Alaska (65 N, 148 W), in April and May 1997. During these validation balloon campaigns, CFC-12 was measured with the in situ instruments ASTRID, BONBON, and SAKURA and the remote sensing spectrometers MIPAS-B, FIRS-2, and MkIV. ILAS version 6.0 CFC-12 profiles obtained at the nearest location to the validation balloon measurement are compared with these validation balloon measurements. The quality of ILAS CFC-12 data processed with the version 6.0 algorithm improved significantly compared to previous versions. Low relative differences between ILAS CFC-12 and the correlative measurements of about 10% were found between 13 and 20 km. The comparison of vertical profiles shows that ILAS CFC-12 data are useful below about 20–22 km inside the vortex and below about 25 km outside the vortex. However, at greater altitudes the relative percentage difference increases very strongly with increasing altitude. Further, correlations of CFC-12 with N2O show a good agreement with the correlative measurements for N2O values of N2O > 150 ppbv. In summary, ILAS CFC-12 data are now suitable for scientific studies in the lower stratosphere.
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| 3. |
- Meier, Arndt, et al.
(författare)
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Spectroscopic Atlas of Atmoshperic Microwindows in the Middle Infra-Red
- 2004
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Bok (övrigt vetenskapligt/konstnärligt)abstract
- This second edition of the infrared microwindow atlas contains a collection of spectral mi- crowindows commonly used or recently suggested for ground-based, high resolution, infrared solar absoption spectroscopy. These solar observations are aimed at quantifying the abun- dance of trace species in the terrestrial atmosphere. A microwindow is a narrow spectral interval that allows to observe a specific atmospheric absorber unambiguously. The width of a microwindow may vary but is typically between 0.1 and 5cm−1 wide, though wider windows may in some cases be used or multiple narrow windows may be combined in any particular retrieval. The spectra and corresponding simulations shown in the figures are representing solar absorption spectra recorded in Arctic Scandinavia on 15/Mar/1997 (500 to 4370cm −1 ) and 01/Apr/1998 (3950 to 9000cm−1 ). The printed atlas discusses close to 250 microwindows. Lively discussions at the annual meetings of the infrared working group of the Network for Detection of Stratospheric Change (NDSC) have demonstrated a continued high interest in an up-to-date reference work on commonly used microwindows in the field of infrared ground- based remote sensing. The present work attempts to summarise the collective knowledge that the NDSC community has on this topic. The work of many past and present experts in the field have contributed to this compilation and the authors wish to express their thanks to all of them. At present, no recommendations on the optimum selection of microwindows for individual species are provided. That task is beyond the scope of the present work and also depends on the observation site and instrumental parameters. However, where inconsistencies be- tween observation and simulations are striking, or in cases where common pitfalls have been reported, we provide comments to highlight potential problems. Several microwindows have been noted previously in the literature, and we have included a list of references citing their use. We are aware that the current edition is still incomplete, and we encourage our readers to help us fill in the gaps, extend, and improve the atlas.
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