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  • SPACECRAFT INSTRUMENTATION  (1)
  • establishment  (1)
  • 1980-1984  (2)
  • 1
    Publikationsdatum: 2011-08-18
    Beschreibung: This study represents an attempt to quantitatively assess the capability of a spaceborne radar altimeter to infer ocean surface wind speeds from a measurement of the backscattered power at vertical incidence. The study uses data acquired during 184 near overflights of NOAA data buoys with the GEOS-3 satellite radar altimeter and encompasses a wind-speed range from less than 1 to 18 m/s. An algorithm is derived from the data comparison for converting measurements of the normalized scattering cross section of the ocean surface at 13.9 GHz into estimates of the surface wind speed at the standard anemometer height of 10 m. The algorithm is straightforward and potentially useful for on-board processing of raw altimeter data for the purpose of providing real-time estimates of surface wind speed. For winds in the range of 1 to 18 m/s, the mean difference between the altimeter-inferred winds and the buoy measurements is negligible while the standard deviation of the difference is 1.74 m/s.
    Schlagwort(e): SPACECRAFT INSTRUMENTATION
    Materialart: IEEE Journal of Oceanic Engineering; OE-6; Apr. 198
    Format: text
    Standort Signatur Erwartet Verfügbarkeit
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  • 2
    Digitale Medien
    Digitale Medien
    Springer
    Potato research 23 (1980), S. 449-452 
    ISSN: 1871-4528
    Schlagwort(e): Solanum tuberosum ; propagation ; micropropagation ; rooting ; establishment ; yield
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Land- und Forstwirtschaft, Gartenbau, Fischereiwirtschaft, Hauswirtschaft
    Notizen: Summary Plants of cvs Kennebec and Pontiac were propagated in petri dishes or flasks and rooted and transplanted into the field as cuttings. Plants from eight week old cuttings gave higher final yields than those from six-week-old cuttings. The field performance of Pontiac plants propagated in petri dishes was superior to that of plants propagated in flasks. Yields from cuttings were between 30% and 97% of those of plants from tubers.
    Materialart: Digitale Medien
    Standort Signatur Erwartet Verfügbarkeit
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