PolarWindsII_DAWN_DC8_1

Polar Winds II - Doppler Aerosol WiNd - DC8

Version 1 eng
  • Abstract
    Beginning in the fall of 2014, NASA sponsored two airborne field campaigns, collectively called Polar Winds, designed to fly the Doppler Aerosol WiNd (DAWN) lidar and other instruments to take airborne wind measurements of the Arctic atmosphere, specifically over and off the coasts of Greenland during Oct-Nov 2014 and May 2015. In particular, Polar Winds conducted a series of science experiments focusing on the measurement and analyses of lower tropospheric winds and aerosols associated with coastal katabatic flows, barrier winds, the Greenland Tip Jet, boundary layer circulations such as rolls and OLEs (Organized Large Eddies), and near surface winds over open water, transitional ice zones and the Greenland Ice Cap. Polar Winds I was based in Kangerlussuaq, Greenland and flew DAWN on board the NASA King Air UC-12B during Oct-Nov 2014 while Polar Winds II was based in Keflavik, Iceland and utilized the NASA DC-8 aircraft to fly DAWN and Dropsondes over the Arctic in May 2015. In total, twenty-four individual missions with over 80 hours of research flights were flown in the Arctic region near Greenland and Iceland during Polar Winds. The focus instrument for the wind measurements taken over the Arctic during Polar Winds was the DAWN airborne wind lidar. At a wavelength of 2.05 microns and at 250 mj per pulse, DAWN is the most powerful airborne Doppler Wind Lidar available today for airborne missions. DAWN has previously been flown on the NASA DC-8 during the 2010 Genesis and Rapid Intensification Processes (GRIP) campaign and on the NASA C-12 for wind field characterization off the coast of Virginia. In addition to DAWN, Polar Winds utilized the High Definition Sounding System (HDSS) dropsonde delivery system developed by Yankee Environmental Services to drop almost 100 dropsondes during Polar Wind II to obtain additional high-resolution vertical wind profiles during most missions. These dropsondes also provided needed calibration/validation for the much newer DAWN measurements.
  • DOI

    10.5067/ASDC_DAAC/PolarWindsII/0001

Data Identification Fields:

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    Data Dates
    Creation
    Last Revision
    Processing Level

    2

    Quality
    Collection Progress

    Complete

    Access Constraints

    4.0

    Not provided

    Science Keywords
    • EARTH SCIENCE
    • ATMOSPHERE
    • ATMOSPHERIC WINDS
    • EARTH SCIENCE
    • ATMOSPHERE
    • ATMOSPHERIC WINDS
    • BOUNDARY LAYER WINDS
    • EARTH SCIENCE
    • ATMOSPHERE
    • ATMOSPHERIC WINDS
    • UPPER LEVEL WINDS
    • EARTH SCIENCE
    • ATMOSPHERE
    • ATMOSPHERIC WINDS
    • WIND PROFILES
    • EARTH SCIENCE
    • ATMOSPHERE
    • ATMOSPHERIC WINDS
    • SURFACE WINDS
    • EARTH SCIENCE
    • SPECTRAL/ENGINEERING
    • LIDAR
    • EARTH SCIENCE SERVICES
    • DATA ANALYSIS AND VISUALIZATION
    • CALIBRATION/VALIDATION
Other Descriptive Keywords
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Ancillary Keywords
  • DAWN
ISO Topic Categories
  • CLIMATOLOGY/METEOROLOGY/ATMOSPHERE

Acquisition Information Fields:

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Platforms
  • Aircraft
    DC-8
    Instruments
    • DAWN
Projects
Project Short Name Campaigns Project Dates
PolarWinds II No campaigns listed. No dates provided.

Temporal Information Fields:

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Spatial Information Fields:

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    Coverage Type Zone Identifier Geometry Granule Representation
    HORIZONTAL CARTESIAN CARTESIAN
Location Keywords
    • GEOGRAPHIC REGION
    • ARCTIC
    • CONTINENT
    • NORTH AMERICA
    • GREENLAND

Data Centers

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  • NASA/LARC/SD/ASDC
    ARCHIVER
    Atmospheric Science Data Center, Science Directorate, Langley Research Center, NASA

    This data center does not have any addresses listed.

    This data center does not have any contact mechanisms listed.

Data Contacts

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  • George
    Investigator
    George Emmitt

    809 East Jefferson Street
    Charlottesville, Virginia 22902

  • STEVEN
    Technical Contact
    STEVEN GRECO

    809 East Jefferson Street
    Charlottesville, Virginia 22902

    • Email
    • (434) 979-3571
    • (434) 979-5599
  • ASDC
    Data Center Contact
    ASDC USER SERVICES

    NASA/LARC/SD/ASDC

    NASA Langley Atmospheric Science Data Center
    User and Data Services
    NASA Langley Research Center
    Hampton, VA 23681-2199

Collection Citations Fields:

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