Deployment and Evaluation of a System for Ground-Based Measurement of Cloud Liquid Water Turbulent Fluxes
| Autor: | P. M. Anthoni, Andrew S. Kowalski, Anthony C. Delany, Gordon D. Maclean, Richard J. Vong |
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| Rok vydání: | 1997 |
| Předmět: | |
| Zdroj: | Journal of Atmospheric and Oceanic Technology. 14:468-479 |
| ISSN: | 1520-0426 0739-0572 |
| DOI: | 10.1175/1520-0426(1997)014<0468:daeoas>2.0.co;2 |
| Popis: | Direct interception of windblown cloud water by forests has been dubbed “occult deposition” because it represents a hydrological input that is hidden from rain gauges. Eddy correlation studies of this phenomenon have estimated cloud water fluxes to vegetation yet have lacked estimates of error bounds. This paper presents an evaluation of instrumental and methodological errors for cloud liquid water fluxes to put such eddy correlation measurements in context. Procedures for data acquisition, processing (including correction factors), and calibration testing of the particulate volume monitor (PVM) and forward-scattering spectrometer probe (FSSP) are detailed. Nearly 200 h of in-cloud data are analyzed for intercomparison of these instruments. Three methods of coordinate system rotation are investigated; the flux shows little sensitivity to the method used, and the difference between fluxes at different stations is even less sensitive to this choice. Side-by-side intercomparison of two PVMs and one ... |
| Databáze: | OpenAIRE |
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