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  • 1
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    Performance of reflecting silica heat shields during entry into Saturn and Uranus (1974)
    In:  CASI
    Details
    Publication Date: 2016-06-07
    Description: The performance of silica heat shields in the outer planet atmospheres is analyzed and described in a set of differential equations. Results are presented and discussed.
    Keywords: COMPOSITE MATERIALS
    Type: Dynatrend, Inc. Proc. of Outer Planet Probe Technol. Workshop, Sect. 1 through 11; 21 p
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 2
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    Analysis of coastal upwelling and the production of a biomass (1979)
    In:  CASI
    Details
    Publication Date: 2019-06-27
    Description: The coastal upwelling index derived from weather data is input to a set of coupled differential equations that describe the production of a biomass. The curl of the wind stress vector is discussed in the context of the physical extent of the upwelling structure. An analogy between temperature and biomass concentration in the upwelled coastal water is derived and the relationship is quantified. The use of remote satellite or airborne sensing to obtain biomass rate production coefficients is considered.
    Keywords: OCEANOGRAPHY
    Type: NASA-TM-78614 , A-7931
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    Biological and physical oceanographic observations pertaining to the trawl fishery in a region of persistent coastal upwelling (1981)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: An upwelling episode in the Point Sal region of the central California coast is examined by using data obtained by a data buoy. The episodes was interrupted by the abrupt abatement of the strong wind which promotes coastal upwelling. The mean hourly upwelling index is calculated to be higher than the 20 year mean monthly value. During 3 days of light wind commercial bottom trawl operations were possible. Shipboard estimates of chlorophyll content in surface waters during trawling show the high concentrations that are indicative of a rich biomass of phytoplankton, a result of the upwelling episode. Satellite imagery shows the extent of the upwelling water to be of the order of 100 km offshore; the result of many upwelling episodes. Shipboard echo sounder data show the presence of various delmersal species and of zooplakton; the latter graze on the phytoplankton in the upper euphotic layers. The fish catch data are recorded according to species for 2 days of trawling, and the catch per trawl hour is recorded.
    Keywords: OCEANOGRAPHY
    Type: NASA-TM-81332 , A-8745
    Format: application/pdf
    Location Call Number Expected Availability
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    NASA TECHNICAL REPORTS
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