ASDC | PolarWindsI_DAWN_KingAirUC-12B

Polar Winds I Level 2

Entry Title: Polar Winds I - Doppler Aerosol WiNd (DAWN) - KingAirUC-12B

Entry ID: PolarWindsI_DAWN_KingAirUC-12B_1

Field Campaigns

Description

PolarWindsI_DAWN_KingAirUC-12B is the Polar Winds I - Doppler Aerosol WiNd (DAWN) - KingAirUC-12B data product. Data for this was collected using the DAWN instrument flown on the NASA Langley Beechcraft UC-12B Huron aircraft. Data collection for this product is complete. 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 UC-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.

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.

DOI

10.5067/ASDC_DAAC/POLARWINDSI/0001

Citation Styles for this Dataset

Resources and Documentation

Earthdata Forum

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DATA CITATION POLICY

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PI DOCUMENTATION

NASA Headquarters Presentation of The 2014 - 2015 PolarWinds DAWN Airborne Campaigns; Instrument Performance, Data Collection and Advanced data Processing Algorithm Development

PUBLICATIONS

A Case Study of Observed and Modeled Barrier Flow in the Denmark Strait in May 2015

Polar Winds Papers and Presentations as of Sep. 1, 2017

From GCMD Science Keywords:

UPPER LEVEL WINDS
SURFACE WINDS
WIND PROFILES
ATMOSPHERIC WINDS
LIDAR
BOUNDARY LAYER WINDS > UPPER LEVEL WINDS

Boundary Layer Winds
Surface Winds
Upper Level Winds
Wind Profiles

Data Distribution

File Format(s):

ASCII

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Spatial Information

Spatial Coverage: (S: 59, N: 69), (W: -58, E: -42)
Spatial Coverage Type: Horizontal
Horizontal Resolution Range: Point Resolution
Vertical Resolution Range: Point Resolution
Coordinate System: Cartesian
Granule Spatial Representation: Cartesian

Locations

ARCTIC GREENLAND

Temporal Information

Temporal Coverage: 2014-10-29 - 2014-11-13

Platforms

Aircraft

UC-12B

NASA Langley Beechcraft UC-12B Huron

DAWN

Doppler Aerosol WiNd Lidar

Coherent Lidar

Metadata Dates

Created on 2018-01-30

Last updated on 2022-10-26