| Combined Use of Satellite Observations and Global Hawk Unmanned Aircraft Dropwindsondes for Improved Tropical Cyclone Analyses and Forecasts - :18751 | Office of Oceanic and Atmospheric Research (OAR)
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Combined Use of Satellite Observations and Global Hawk Unmanned Aircraft Dropwindsondes for Improved Tropical Cyclone Analyses and Forecasts
Filetype[PDF-1.10 MB]


Details:
  • DOI:
    http://dx.doi.org/10.1175/waf-d-17-0167.1
  • Personal Authors:
  • Description:
    AbstractThis study demonstrates that Global Hawk unmanned aircraft system dropwindsondes and Atmospheric Infrared Sounder (AIRS) observations can be complementary in sampling a tropical cyclone (TC). The assimilation of both datasets in a regional ensemble data assimilation system shows that the cumulative impact of both datasets is greater than either one alone because of the presence of mutually independent information content. The experiment that assimilates both datasets has smaller position and intensity errors in the mean analysis than those with individual datasets. The improvements in track and intensity forecasts that result from combining both datasets also indicate synergistic benefits. Overall, superior track and intensity forecasts are evident. This study suggests that polar-orbiting satellite spatial coverage should be considered in operational reconnaissance mission planning in order to achieve further improvements in TC analyses and forecasts.

  • Document Type:
    Journal Article
  • Collection(s):
    Office of Oceanic and Atmospheric Research (OAR)
  • Main Document Checksum:
  • Supporting Files:
    No Additional Files
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      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
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      In preparation for the launch of the NASA Cyclone Global Navigation Satellite System (CYGNSS), a variety of observing system simulation experiments (OSSEs) were conducted to develop, tune, and assess methods of assimilating these novel observations o...
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      Progress in Oceanography, 165, 205-214.
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      CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
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      Description:
      The impacts of Global Hawk (GH) dropwindsondes on tropical cyclone (TC) analyses and forecasts are examined over a composite sample of missions flown during the NASA Hurricane and Severe Storm Sentinel (HS3) and the NOAA Sensing Hazards with Operatio...
      File Type:
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