This title appears in the Scientific Report :
2014
Please use the identifier:
http://hdl.handle.net/2128/20705 in citations.
Please use the identifier: http://dx.doi.org/10.1175/BAMS-D-14-00105.1 in citations.
JOYCE: Juelich Observatory for Cloud Evolution
JOYCE: Juelich Observatory for Cloud Evolution
The Jülich Observatory for Cloud Evolution (JOYCE), located at Forschungszentrum Jülich in the most western part of Germany, is a recently established platform for cloud research. The main objective of JOYCE is to provide observations, which improve our understanding of the cloudy boundary layer in...
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Personal Name(s): | Löhnert, U. (Corresponding Author) |
---|---|
Schween, J. H. / Acquistapace, C. / Ebell, K. / Maahn, M. / Barreraverdejo, M. / Hirsikko, A. / Bohn, B. / Knaps, A. / O'connor, E. / Simmer, C. / Wahner, A. / Crewell, S. | |
Contributing Institute: |
Sicherheit und Strahlenschutz;Umgebungsüberwachung,Meteorologie; S-UM Troposphäre; IEK-8 |
Published in: | Bulletin of the American Meteorological Society, 96 (2014) 7, S. 1157–1174 |
Imprint: |
Boston, Mass.
ASM
2014
|
DOI: |
10.1175/BAMS-D-14-00105.1 |
Document Type: |
Journal Article |
Research Program: |
Trace gas and aerosol processes in the troposphere |
Link: |
Get full text OpenAccess OpenAccess |
Publikationsportal JuSER |
Please use the identifier: http://dx.doi.org/10.1175/BAMS-D-14-00105.1 in citations.
The Jülich Observatory for Cloud Evolution (JOYCE), located at Forschungszentrum Jülich in the most western part of Germany, is a recently established platform for cloud research. The main objective of JOYCE is to provide observations, which improve our understanding of the cloudy boundary layer in a midlatitude environment. Continuous and temporally highly resolved measurements that are specifically suited to characterize the diurnal cycle of water vapor, stability, and turbulence in the lower troposphere are performed with a special focus on atmosphere–surface interaction. In addition, instruments are set up to measure the micro- and macrophysical properties of clouds in detail and how they interact with different boundary layer processes and the large-scale synoptic situation. For this, JOYCE is equipped with an array of state-of-the-art active and passive remote sensing and in situ instruments, which are briefly described in this scientific overview. As an example, a 24-h time series of the evolution of a typical cumulus cloud-topped boundary layer is analyzed with respect to stability, turbulence, and cloud properties. Additionally, we present longer-term statistics, which can be used to elucidate the diurnal cycle of water vapor, drizzle formation through autoconversion, and warm versus cold rain precipitation formation. Both case studies and long-term observations are important for improving the representation of clouds in climate and numerical weather prediction models. |