This title appears in the Scientific Report :
1999
Please use the identifier:
http://hdl.handle.net/2128/20550 in citations.
Please use the identifier: http://dx.doi.org/10.1029/1998JD100025 in citations.
FISH : a new family of balloon-borne and airborne Lyman-alpha photofragment fluorescence hygrometers
FISH : a new family of balloon-borne and airborne Lyman-alpha photofragment fluorescence hygrometers
A new set of hygrometers based on the Lyman a photofragment fluorescence technique has been developed for operation on aircraft and balloons in the stratosphere and upper troposphere. They combine technical details from existing fluorescence hygrometers with several improvements in order to achieve...
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Personal Name(s): | Zöger, M. |
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Afchine, A. / Eicke, N. / Gerhards, M.-T. / MacKenna, A. R. / Mörschel, U. / Schmidt, U. / Tan, V. / Tuitjer, F. / Woyke, T. / Schiller, C. | |
Contributing Institute: |
Institut für Stratosphärische Chemie; ICG-1 |
Published in: | Journal of geophysical research / Atmospheres, 104 (1999) S. 1807 - 1816 |
Imprint: |
Washington, DC Washington, DC
Union
1999
|
Physical Description: |
1807 - 1816 |
DOI: |
10.1029/1998JD100025 |
Document Type: |
Journal Article |
Research Program: |
Stratosphärische Chemie |
Series Title: |
Journal of Geophysical Research
104 |
Subject (ZB): | |
Link: |
Get full text OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1029/1998JD100025 in citations.
A new set of hygrometers based on the Lyman a photofragment fluorescence technique has been developed for operation on aircraft and balloons in the stratosphere and upper troposphere. They combine technical details from existing fluorescence hygrometers with several improvements in order to achieve the highest data quality and to minimize maintenance and operational procedures. With these instruments, stratospheric H2O measurements can be accomplished with a precision of < 0.2 ppmv at 1 s integration time, as has been demonstrated both in the laboratory and under field deployment. The design enables a rapid exchange of the air sample of the order of 1 a for fast measurements of small-scale variations of the H2O mixing ratio in the atmosphere. The hygrometer is calibrated using a laboratory calibration bench with approximately 4% accuracy. Measurements made by the hygrometer are compared with a frost point hygrometer during an aircraft mission at H2O mixing ratios from 280 to 8 ppmv, yielding an agreement between both techniques within the instrumental errors. |