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  • 1
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    Remote sensing of wetland plant stress (1986)
    In:  Other Sources
    Details
    Publication Date: 2013-08-29
    Description: High resolution laboratory, field, and airborne spectrometer data were correlated with plant tissue chemistry in order to characterize wetland plant spectral response due to high trace element concentrations. Wavelengths found to be important for distinguishing trace element stress were extended to broadband, regional remote sensing systems. Results indicate that LANDSAT Thematic Mapper bands 2, 3, and 5 may be the most useful for distinguishing between stressed and nonstressed wetland species.
    Keywords: ENVIRONMENT POLLUTION
    Type: ESA Proceedings of the 1986 International Geoscience and Remote Sensing Symposium (IGARSS '86) on Remote Sensing: Today's Solutions for Tomorrow's Information Needs, Volume 3; p 1383-1386
    Format: text
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    NASA TECHNICAL REPORTS
  • 2
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    Field test to intercompare carbon monoxide, nitric oxide and hydroxyl instrumentation at Wallops Island, Virginia (1987)
    In:  CASI
    Details
    Publication Date: 2019-06-28
    Description: Documentation of the first of three instrument intercomparisons conducted as part of NASA Global Tropospheric Experiment/Chemical Instrumentation Test and Evaluation (GTE/CITE-1) is given. This ground-based intercomparison was conducted during July 1983 at NASA Wallops Flight Facility. Instruments intercompared included one laser system and three grab-sample approaches for CO; two chemiluminescent systems and one laser-induced fluorescent (LIF) technique for NO; and two different LIF systems and a radiochemical tracer technique for OH. The major objectives of this intercomparison was to intercompare ambient measurements of CO, NO, and OH at a common site by using techniques of fundamentally different detection principles and to identify any major biases among the techniques prior to intercomparison on an aircraft platform. Included in the report are comprehensive discussions of workshop requirements, philosophies, and operations as well as intercomparison analyses and results. In addition, the large body of nonintercomparison data incorporated into the workshop measurements is summarized. The report is an important source document for those interested in conducting similar large and complex intercomparison tests as well as those interested in using the data base for purposes other than instrument intercomparison.
    Keywords: ENVIRONMENT POLLUTION
    Type: NASA-TM-87718 , L-16126 , NAS 1.15:87718
    Format: application/pdf
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    NASA TECHNICAL REPORTS
  • 3
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    The Amazon Boundary Layer Experiment (ABLE 2A) - Dry season 1985 (1988)
    In:  Other Sources
    Details
    Publication Date: 2019-08-27
    Description: The Amazon Boundary Layer Experiment (ABLE 2A) used data from aircraft, ground-based, and satellite platforms to characterize the chemistry and dynamics of the lower atmosphere over the Amazon Basin during the early-to-middle dry season, July and August 1985. This paper reports the conceptual framework and experimental approach used in ABLE 2A and serves as an introduction to the detailed papers which follow in this issue. The results of ABLE 2A demonstrate that isoprene, methane, carbon dioxide, nitric oxide, dimethylsulfide, and organic aerosol emissions from soils and vegetation play a major role in determining the chemical composition of the atmospheric mixed layer over undisturbed forest and wetland environments. As the dry season progresses, emissions from both local and distant biomass burning become an important source of carbon monoxide, nitric oxide and ozone in the atmosphere over the central Amazon Basin.
    Keywords: ENVIRONMENT POLLUTION
    Type: Journal of Geophysical Research (ISSN 0148-0227); 93; 1351-136
    Format: text
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    NASA TECHNICAL REPORTS
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