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| Titel |
COSMOS: the COsmic-ray Soil Moisture Observing System |
| VerfasserIn |
M. Zreda, W. J. Shuttleworth, X. Zeng, C. Zweck, D. Desilets, T. Franz, R. Rosolem |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1027-5606
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| Digitales Dokument |
URL |
| Erschienen |
In: Hydrology and Earth System Sciences ; 16, no. 11 ; Nr. 16, no. 11 (2012-11-07), S.4079-4099 |
| Datensatznummer |
250013560
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| Publikation (Nr.) |
 copernicus.org/hess-16-4079-2012.pdf |
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| Zusammenfassung |
| The newly-developed cosmic-ray method for measuring area-average soil
moisture at the hectometer horizontal scale is being implemented in the
COsmic-ray Soil Moisture Observing System (or the COSMOS). The stationary
cosmic-ray soil moisture probe measures the neutrons that are generated by
cosmic rays within air and soil and other materials, moderated by mainly
hydrogen atoms located primarily in soil water, and emitted to the
atmosphere where they mix instantaneously at a scale of hundreds of meters
and whose density is inversely correlated with soil moisture. The COSMOS has
already deployed more than 50 of the eventual 500 cosmic-ray probes,
distributed mainly in the USA, each generating a time series of average soil
moisture over its horizontal footprint, with similar networks coming into
existence around the world. This paper is written to serve a community need
to better understand this novel method and the COSMOS project. We describe
the cosmic-ray soil moisture measurement method, the instrument and its
calibration, the design, data processing and dissemination used in the
COSMOS project, and give example time series of soil moisture obtained from
COSMOS probes. |
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